Impact of land use on vegetation productivity in Europe

Ecosystem degradation threatens biodiversity and resilience to climate change, and tackling it is a major goal of EU environmental policy. Vegetation productivity is a key indicator of ecosystem condition and can be used to monitor the effects of climate, land use and land use change. From 2000 to 2016, productivity in Europe showed a regional pattern of increase and decline, driven in part by climatic variation, but most notably by land use change. Agricultural land management and converting land for agriculture drove productivity increases, whereas urban sprawl caused declines.

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Metadata
DPSIR State
Typology Efficiency indicator (Type C - Are we improving?)
UN SDGs
Topics Land use, Biodiversity, Climate change adaptation, Agriculture and food, Forests and forestry
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The only exception was the conversion of pastures to non-irrigated arable land. This reduced productivity in France, Ireland and Germany (around 25% decline) \u2014 probably indicating the impact of drought on non-irrigated crops \u2014 although it increased productivity in Bulgaria and Romania. Converting pastures to arable lands and permanent crops resulted in a 96% productivity increase in Spain and converting forests to agriculture increased productivity in Portugal by 70% and in Spain by 18%. Converting arable lands to irrigation had a strong effect on productivity increase in Spain (80% increase) and Portugal (50%). These countries also led the conversion of semi-natural lands to agriculture, where productivity increased the most. Forest creation and afforestation had the highest impact on productivity in Portugal, followed by Germany and Poland (72% increase).", "value": [ { "children": [ { "text": "" }, { "children": [ { "text": "Agricultural management and the conversion of land for agriculture increased productivity overall" } ], "data": { "url": "" }, "type": "link" }, { "text": ". The only exception was the conversion of pastures to non-irrigated arable land. This reduced productivity in France, Ireland and Germany (around 25% decline) \u2014 probably indicating the impact of drought on non-irrigated crops \u2014 although it increased productivity in Bulgaria and Romania. Converting pastures to arable lands and permanent crops resulted in a 96% productivity increase in Spain and converting forests to agriculture increased productivity in Portugal by 70% and in Spain by 18%. Converting arable lands to irrigation had a strong effect on productivity increase in Spain (80% increase) and Portugal (50%). These countries also led the conversion of semi-natural lands to agriculture, where productivity increased the most. Forest creation and afforestation had the highest impact on productivity in Portugal, followed by Germany and Poland (72% increase)." } ], "type": "p" } ] }, "d3d49723-14e5-4663-b346-37ee3572f28d": { "@type": "slate", "fixed": true, "instructions": { "content-type": "text/html", "data": "<p><br/></p>", "encoding": "utf8" }, "plaintext": "", "readOnlySettings": true, "required": true, "value": [ { "children": [ { "text": "" } ], "type": "p" } ] }, "de413566-e3dc-4fcd-ac35-d818b4ea5160": { "@type": "slate", "plaintext": " See the second tab of the dashboard: between 2000 and 2016, industrial, commercial and construction site sprawl caused the greatest productivity decline in Spain, followed by the Netherlands and France (47%), whereas urban residential sprawl impacted productivity the most in Ireland, the Netherlands and the UK (approximately 25%).", "value": [ { "children": [ { "text": "" }, { "children": [ { "text": "See the second tab of the " } ], "data": { "url": "https://www.eea.europa.eu/data-and-maps/dashboards/vegetation-productivity-and-land-use" }, "type": "link" }, { "text": "" }, { "children": [ { "text": "dashboard:" } ], "data": { "url": "https://www.eea.europa.eu/data-and-maps/dashboards/vegetation-productivity-and-land-use" }, "type": "link" }, { "text": " between 2000 and 2016, industrial, commercial and construction site sprawl caused the greatest productivity decline in " }, { "children": [ { "text": "" } ], "data": { "url": null }, "type": "link" }, { "text": "" }, { "children": [ { "text": "" } ], "data": { "url": null }, "type": "link" }, { "text": "Spain, followed by the Netherlands and France (47%), whereas urban residential sprawl impacted productivity the most in Ireland, the Netherlands and the UK (approximately 25%). " } ], "type": "p" } ] }, "46b863a2-5345-43b3-a1c8-64a3462faea7": { "@type": "group", "className": "figure-metadata", "id": "figure-metadata-02ba4a04-fcfe-4968-806f-1dac3119cfef", "data": { "blocks": { "e232a5ce-f145-40d3-87b3-51765d688f44": { "@type": "slate", "value": [ { "type": "h3-light", "children": [ { "text": "Figure 2. Productivity change due to land use (2000-2019)" } ] } ], "plaintext": "Figure 2. Productivity change due to land use (2000-2019)" } }, "blocks_layout": { "items": [ "e232a5ce-f145-40d3-87b3-51765d688f44" ] } } }, "43df8fab-b278-4b0e-a62c-ce6b8e0a881e": { "@type": "dividerBlock", "section": false, "short": true, "disableNewBlocks": true, "fixed": true, "hidden": true, "readOnly": true, "required": true, "spacing": "m", "fitted": false } }, "blocks_layout": { "items": [ "46b863a2-5345-43b3-a1c8-64a3462faea7", "02ba4a04-fcfe-4968-806f-1dac3119cfef", "43df8fab-b278-4b0e-a62c-ce6b8e0a881e", "de413566-e3dc-4fcd-ac35-d818b4ea5160", "68e105cc-1919-4e90-aa9b-979aaf8af266" ] } }, "disableInnerButtons": true, "disableNewBlocks": false, "fixed": true, "ignoreSpaces": true, "instructions": { "content-type": "text/html", "data": "<ol keys=\"9bbul,b1sa2,171og,1c1t5\" depth=\"0\"><li>Depending on the indicator context, this text can provide information at country level or, if this is not relevant, at some other level, e.g. sectoral, regional level.</li><li>This text interprets the data represented in the chart, rather than describing results, i.e. it provides explanations for some of the results.</li><li>The text related to progress at this level does not have to be comprehensive.</li><li>If there is no information that adds value to what is already visible there is no need to have any text.</li></ol>", "encoding": "utf8" }, "maxChars": "1000", "placeholder": "Disaggregate level assessment e.g. country, sectoral, regional level assessment", "readOnly": false, "readOnlySettings": true, "required": true, "title": "Disaggregate level assessment" }, "677f7422-6da4-4c86-bca8-de732b7047b9": { "@type": "dividerBlock", "disableNewBlocks": true, "fixed": true, "hidden": true, "readOnly": true, "required": true, "section": false, "spacing": "m", "styles": {} }, "9605a7c3-4b9b-4450-b706-7da7dcc272ed": { "@layout": "1bc4379d-cddb-4120-84ad-5ab025533b12", "@type": "group", "allowedBlocks": [ "slate" ], "as": "section", "block": "9605a7c3-4b9b-4450-b706-7da7dcc272ed", "data": { "blocks": { "6451c629-3361-4edc-85c2-193bd3a43852": { "@type": "slate", "plaintext": "Between 2000 and 2016, vegetation productivity changed significantly across Europe . Sprawl of industrial and commercial sites was the most significant cause of declining vegetation productivity in Europe between 2000 and 2016, causing a 33% decline over 3,500 km 2 . The sprawl of mines and quarrying areas (over 2,100 km 2 ) and of transport networks (covering 1,300 km 2 ) caused a productivity decline of between 25% and 30% over the 17 years. All these processes, including construction sites and urban diffuse residential sprawl, destroy vegetated surfaces and, in the worst case, replace them with sealed areas, causing land degradation, increasing flood impacts and urban heat island effects and contributing to less carbon sequestration. Recycling of developed urban land also caused a decline in vegetation productivity (13%), although these processes reuse already developed lands and hence are better choices in terms of sustainable urban land management.", "value": [ { "children": [ { "text": "Between 2000 and 2016, " }, { "children": [ { "text": "vegetation productivity changed significantly across Europe" } ], "data": { "url": "https://www.eea.europa.eu/data-and-maps/dashboards/vegetation-productivity-and-land-use" }, "type": "link" }, { "text": ". Sprawl of industrial and commercial sites was the most significant cause of declining vegetation productivity in Europe between 2000 and 2016, causing a 33% decline over 3,500 km" }, { "children": [ { "text": "2" } ], "type": "sup" }, { "text": ". The sprawl of mines and quarrying areas (over 2,100 km" }, { "children": [ { "text": "2" } ], "type": "sup" }, { "text": ") and of transport networks (covering 1,300 km" }, { "children": [ { "text": "2" } ], "type": "sup" }, { "text": ") caused a productivity decline of between 25% and 30% over the 17 years. All these processes, including construction sites and urban diffuse residential sprawl, destroy vegetated surfaces and, in the worst case, replace them with sealed areas, causing land degradation, increasing flood impacts and urban heat island effects and contributing to less carbon sequestration. Recycling of developed urban land also caused a decline in vegetation productivity (13%), although these processes reuse already developed lands and hence are better choices in terms of sustainable urban land management. " } ], "type": "p" } ] }, "7aec5dfb-d80f-43e9-a42d-4ab94bb3e875": { "@type": "slate", "plaintext": " Converting semi natural lands to agriculture increased land productivity by 50% . However, this process destroys habitats and can be considered land degradation. Crop rotation increased productivity in the same way and over a comparable area (ca. 13,00 km 2 ). This is mostly due to the intensive management of agricultural fields, which, in the long term, leads to land degradation due to the depletion of soil resources.", "value": [ { "children": [ { "text": "" }, { "children": [ { "text": "Converting semi natural lands to agriculture increased land productivity by 50%" } ], "data": { "url": "https://www.eea.europa.eu/data-and-maps/dashboards/vegetation-productivity-and-land-use" }, "type": "link" }, { "text": ". However, this process destroys habitats and can be considered land degradation. Crop rotation increased productivity in the same way and over a comparable area (ca. 13,00 km" }, { "children": [ { "text": "2" } ], "type": "sup" }, { "text": "). This is mostly due to the intensive management of agricultural fields, which, in the long term, leads to land degradation due to the depletion of soil resources." } ], "type": "p" } ] }, "b0279dde-1ceb-4137-a7f1-5ab7b46a782c": { "@type": "embed_content", "url": "../../../../resolveuid/21c498b9c0b049d8be0ebf8aedeece5e", "with_notes": false }, "b4da9e95-2d18-437e-aea2-4b2235d5e9f6": { "@type": "slate", "plaintext": " Intensive land use and land use change as a result of human activities cause ecosystem degradation, with loss of vegetation cover and biomass productivity. This is a major threat to the provision of ecosystem services, biodiversity and resilience to climate change and natural disasters, as recognised by the EU\u2019s Seventh Environment Action Programme (7th EAP) . The 7th EAP also recognises that, to inform approaches aimed at restoring and maintaining ecosystems, monitoring ecosystem condition is essential. V egetation productivity indicates both the spatial distribution and the condition of vegetation cover and can therefore be used to assess the condition of ecosystems. ", "value": [ { "children": [ { "text": "" }, { "children": [ { "text": "" } ], "data": { "url": null }, "type": "link" }, { "text": "Intensive land use and land use change as a result of human activities cause ecosystem degradation, with loss of vegetation cover and biomass productivity. This is a major threat to the provision of ecosystem services, biodiversity and resilience to climate change and natural disasters, as recognised by the EU\u2019s Seventh Environment Action Programme " }, { "children": [ { "text": "(7th EAP)" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">EU, 2013, Decision No&#xA0;1386/2013/EU of the European Parliament and of the Council of 20&#xA0;November 2013 on a General Union Environment Action Programme to 2020 &#x2018;Living well, within the limits of our planet&#x2019;, OJ L 354, 28.12.2013, p. 171-200.</div>\n</div>\n", "footnoteTitle": "EU, Decision No\u00a01386/2013/EU of the European Parliament and of the Council of 20\u00a0November 2013 on a General Union Environment Action Programme to 2020 \u2018Living well, within the limits of our planet\u2019", "uid": "XUQT2", "zoteroId": "HP9YP37K" }, "type": "zotero" }, { "text": ". The 7th EAP also recognises that, to inform approaches aimed at restoring and maintaining ecosystems, monitoring ecosystem condition is essential. V" }, { "children": [ { "text": "" } ], "data": { "url": null }, "type": "link" }, { "text": "egetation productivity indicates both the spatial distribution and the condition of vegetation cover and can therefore be used to assess the condition of ecosystems." }, { "children": [ { "text": "" } ], "data": { "url": "#_msocom_3" }, "type": "link" }, { "text": "" } ], "type": "p" } ] }, "deb7e84d-d2c8-4491-90fa-3dc65fe02143": { "@type": "slate", "fixed": true, "instructions": { "content-type": "text/html", "data": "<p><br/></p>", "encoding": "utf8" }, "plaintext": "", "readOnlySettings": true, "required": true, "value": [ { "children": [ { "text": "" } ], "type": "p" } ] }, "e5a592ce-98fa-40fc-a3ce-1affe3ef336d": { "@type": "slate", "plaintext": " Forest creation and afforestation resulted in a 55% productivity increase , which had a positive impact on biodiversity and carbon sequestration. This land use change, however, only affected 3,600 km 2 , or fewer than 212 km 2 a year in the entire territory of the EU-27 and the United Kingdom. Conversion from developed areas to agriculture \u2014 a land recultivation process that decreases land take and increases land use efficiency \u2014 created 50% more vegetation productivity but only over a total of 570 km 2 .", "value": [ { "children": [ { "text": "" }, { "children": [ { "text": "Forest creation and afforestation resulted in a 55% productivity increase" } ], "data": { "url": "https://www.eea.europa.eu/data-and-maps/dashboards/vegetation-productivity-and-land-use" }, "type": "link" }, { "text": ", which had a positive impact on biodiversity and carbon sequestration. This land use change, however, only affected 3,600 km" }, { "children": [ { "text": "2" } ], "type": "sup" }, { "text": ", or fewer than 212 km" }, { "children": [ { "text": "2" } ], "type": "sup" }, { "text": " a year in the entire territory of the EU-27 and the United Kingdom. Conversion from developed areas to agriculture \u2014 a land recultivation process that " }, { "children": [ { "text": "decreases land take" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Land take in Europe &#x2014; European Environment Agency, 2019, (https://www.eea.europa.eu/data-and-maps/indicators/land-take-3/assessment) accessed January 6, 2022.</div>\n</div>\n", "footnoteTitle": " 2019, Land take in Europe \u2014 European Environme", "uid": "Q-4P0", "zoteroId": "YL3D4AA5" }, "type": "zotero" }, { "text": "and " }, { "children": [ { "text": "increases land use efficiency" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">EEA, Forthcoming, <i>Land take and land degradation</i>,</div>\n</div>\n", "footnoteTitle": "EEA, Forthcoming, Land take and land degradation", "uid": "xEfcy", "zoteroId": "CWIBEV78" }, "type": "zotero" }, { "text": " \u2014 created 50% more vegetation productivity but only over a total of 570 km" }, { "children": [ { "text": "2" } ], "type": "sup" }, { "text": ". " } ], "type": "p" } ] }, "28f3f9ed-1ee3-425d-8b02-6298be2187e0": { "@type": "group", "className": "figure-metadata", "id": "figure-metadata-b0279dde-1ceb-4137-a7f1-5ab7b46a782c", "data": { "blocks": { "b1b5eae8-167d-446d-8718-73a8ddbd16b9": { "@type": "slate", "value": [ { "type": "h3-light", "children": [ { "text": "Figure 1. Productivity change due to land use (2000-2019)" } ] } ], "plaintext": "Figure 1. Productivity change due to land use (2000-2019)" } }, "blocks_layout": { "items": [ "b1b5eae8-167d-446d-8718-73a8ddbd16b9" ] } } }, "43df8fab-b278-4b0e-a62c-ce6b8e0a881d": { "@type": "dividerBlock", "section": false, "short": true, "disableNewBlocks": true, "fixed": true, "hidden": true, "readOnly": true, "required": true, "styles": {}, "spacing": "m", "fitted": false } }, "blocks_layout": { "items": [ "28f3f9ed-1ee3-425d-8b02-6298be2187e0", "b0279dde-1ceb-4137-a7f1-5ab7b46a782c", "43df8fab-b278-4b0e-a62c-ce6b8e0a881d", "b4da9e95-2d18-437e-aea2-4b2235d5e9f6", "6451c629-3361-4edc-85c2-193bd3a43852", "e5a592ce-98fa-40fc-a3ce-1affe3ef336d", "7aec5dfb-d80f-43e9-a42d-4ab94bb3e875" ] } }, "disableInnerButtons": true, "disableNewBlocks": false, "fixed": true, "ignoreSpaces": true, "instructions": { "content-type": "text/html", "data": "<p><strong>Assessment text remains at</strong> <strong>the relevant</strong> <strong>aggregate level</strong> <strong>(i.e.</strong> <strong>global, EU, sectoral)</strong> <strong>and addresses the following: </strong></p><ol keys=\"dkvn8,e367c,f4lpb,9j981,7ai6k,3g3pd\" depth=\"0\"><li>Explains in one or two sentences on the environmental rationale of the indicator, i.e. why it matters to the environment that we see an increase/decrease in the value measured.</li><li>Explains in one or two sentences the associated policy objective, which can be either quantitative or directional. More information on the policy objective and related references will be included in the supporting information section. Where there is no policy objective associated with the indicator, i.e. where the indicator addresses an issue that is important for future policy formulation, this text should explain instead why this issue is important.</li><li>IF NECESSARY - Explains any mismatch between what the indicator tracks and what the policy objective/issue is.</li><li>Qualifies the historical trend (e.g. steady increase) and explains the key reasons (e.g. policies) behind it. If there is a quantitative target it explains if we are on track to meet it.</li><li>IF NECESSARY - Explains any recent changes to the trend and why.</li><li>IF NECESSARY - Describes what needs to happen to see adequate progress in future, for instance in order to remain on track to meet targets.</li></ol><p><strong>Please cite your work if</strong> <strong>necessary</strong> <strong>using the EEA citation style (i.e.</strong> <strong>EEA, 2020). A full reference list appears in the supporting information section.</strong></p>", "encoding": "utf8" }, "maxChars": "2000", "placeholder": "Aggregate level assessment e.g. progress at global, EU level..", "readOnlySettings": true, "required": true, "title": "Aggregate level assessment" }, "ae32b48a-d524-405a-aac7-973b31a44a64": { "@layout": "794c9b24-5cd4-4b9f-a0cd-b796aadc86e8", "@type": "group", "allowedBlocks": [], "as": "section", "block": "ae32b48a-d524-405a-aac7-973b31a44a64", "data": { "blocks": { "12d8c532-f7ad-43fe-ada7-330b2d7a7a39": { "@type": "slate", "disableNewBlocks": true, "fixed": true, "instructions": { "content-type": "text/html", "data": "<p><br/></p>", "encoding": "utf8" }, "plaintext": "Published: date \u2012 25min read", "readOnly": true, "readOnlySettings": true, "required": true, "value": [ { "children": [ { "text": "" }, { "children": [ { "text": "Published: " }, { "children": [ { "text": "date" } ], "data": { "id": "effective", "widget": "datetime" }, "type": "mention" }, { "text": " \u2012 25min read" } ], "type": "sup" }, { "text": "" } ], "type": "p" } ] }, "1c31c956-5086-476a-8694-9936cfa6c240": { "@type": "description", "disableNewBlocks": true, "fixed": true, "instructions": { "content-type": "text/html", "data": "<p>The summary tells the reader about the indicator trend over the examined period and whether or not it helps to achieve the associated policy objective, which can be either quantitative or directional.</p><p>In the absence of a policy objective, it explains whether the trend is in the right or wrong direction in relation to the issue examined.</p><p>If there has been an important change over the most recent period of the time series, e.g. over the last year, this is indicated too.</p><p>Furthermore, if there is a quantitative target, it also indicates whether we are on track to meet it and if not what are the reasons preventing that, e.g. socio-economic drivers, implementation gap etc.</p>", "encoding": "utf8" }, "placeholder": "Summary", "readOnlySettings": true, "required": true, "value": [ { "type": "p", "children": [ { "text": "Ecosystem degradation threatens biodiversity and resilience to climate change, and tackling it is a major goal of EU environmental policy. Vegetation productivity is a key indicator of ecosystem condition and can be used to monitor the effects of climate, land use and land use change. From 2000 to 2016, productivity in Europe showed a regional pattern of increase and decline, driven in part by climatic variation, but most notably by land use change. Agricultural land management and converting land for agriculture drove productivity increases, whereas urban sprawl caused declines." } ] } ], "plaintext": "Ecosystem degradation threatens biodiversity and resilience to climate change, and tackling it is a major goal of EU environmental policy. Vegetation productivity is a key indicator of ecosystem condition and can be used to monitor the effects of climate, land use and land use change. From 2000 to 2016, productivity in Europe showed a regional pattern of increase and decline, driven in part by climatic variation, but most notably by land use change. Agricultural land management and converting land for agriculture drove productivity increases, whereas urban sprawl caused declines." }, "3cccc2bb-471a-44c7-b006-5595c4713ff2": { "@type": "layoutSettings", "disableNewBlocks": true, "fixed": true, "layout_size": "narrow_view", "readOnly": true, "readOnlySettings": true, "required": true }, "ddde07aa-4e48-4475-94bd-e1a517d26eab": { "copyrightIcon": "ri-copyright-line", "styles": {}, "variation": "default", "@type": "title", "disableNewBlocks": true, "fixed": true, "hideContentType": true, "hideCreationDate": true, "hideDownloadButton": true, "hideModificationDate": true, "placeholder": "Indicator title", "readOnlySettings": true, "required": true } }, "blocks_layout": { "items": [ "ddde07aa-4e48-4475-94bd-e1a517d26eab", "1c31c956-5086-476a-8694-9936cfa6c240", "3cccc2bb-471a-44c7-b006-5595c4713ff2" ] } }, "disableInnerButtons": true, "disableNewBlocks": true, "fixed": true, "fixedLayout": true, "ignoreSpaces": true, "instructions": { "content-type": "text/html", "data": "<p>The summary tells the reader about the indicator trend over the examined period and whether or not it helps to achieve the associated policy objective, which can be either quantitative or directional.</p><p>In the absence of a policy objective, it explains whether the trend is in the right or wrong direction in relation to the issue examined.</p><p>If there has been an important change over the most recent period of the time series, e.g. over the last year, this is indicated too.</p><p>Furthermore, if there is a quantitative target, it also indicates whether we are on track to meet it and if not what are the reasons preventing that, e.g. socio-economic drivers, implementation gap etc.</p>", "encoding": "utf8" }, "maxChars": "500", "readOnlySettings": true, "required": true, "styles": { "style_name": "environment-theme-bg" }, "title": "Content header" }, "e9736b7c-4902-48aa-aecd-b706409a576d": { "@type": "dividerBlock", "disableNewBlocks": true, "fixed": true, "hidden": true, "readOnly": true, "required": true, "section": false, "spacing": "m", "styles": {} } }
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Supporting information
Methodology [ { "children": [ { "text": "" }, { "children": [ { "text": "Methodology for indicator calculation" } ], "type": "b" }, { "text": "" } ], "type": "p" }, { "children": [ { "text": "The PPI time series is affected by noise due to, for example, atmosphere and remaining cloud influence, resulting in some spikes and outlier values. Since large spikes and outliers might significantly affect further function fitting, they first have to be removed from the data. This is done in an initial filtering process, further described in the " }, { "children": [ { "text": "Timesat software manual" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Jin, H., J&#xF6;nsson, A. M., Bolmgren, K., Langvall, O. and Eklundh, L., 2017, 'Disentangling remotely-sensed plant phenology and snow seasonality at northern Europe using MODIS and the plant phenology index', <i>Remote Sensing of Environment</i> 198, pp. 203&#x2013;212.</div>\n</div>\n", "footnoteTitle": "Jin, H., 2017, Disentangling remotely-sensed plant phen, Remote Sensing of Environment", "uid": "gaweJ", "zoteroId": "Z7HDSKP3" }, "type": "zotero" }, { "text": "" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_1" } }, { "text": "." } ], "type": "p" }, { "children": [ { "text": "After outlier removal, the next step in the analysis is the determination of the number of growing seasons. This is based on a harmonic function fit (sine-cosine functions) to the data. The presence of a second season is established by evaluating the amplitudes of the first and second components of the harmonic fit. Presence of noise in the data complicates the decision on whether the given secondary maximum represents a true growing season or not. Therefore, an amplitude threshold is used to remove seasons that are smaller" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_2" } }, { "text": " than the given threshold. A detailed description of the determination of the number of growing seasons is found in the Timesat software manual." } ], "type": "p" }, { "children": [ { "text": "After the number of growing seasons has been determined, double logistic functions are fitted to the data from each pixel. This is done to generate smooth continuous functions that describe each individual growing season well. It is assumed that most of the noise included in the PPI (or any other vegetation index) results in negative bias of the values. Therefore, iterative adaptation of the logistic functions to the upper envelope of the data is applied in the following step. The function fit is performed on the PPI data. Values less than the first function fit are then considered influenced by noise and thus less important, so their weights are decreased for the next iteration of the function fitting" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_3" } }, { "text": "." } ], "type": "p" }, { "children": [ { "text": "\u00a0 " } ], "type": "p" }, { "children": [ { "text": "Phenological metrics (and other parameters describing the character of the given growing season) are finally extracted from the fitted function data. The following parameters are extracted for each growing season detected to determine productivity:" } ], "type": "p" }, { "children": [ { "children": [ { "text": "" }, { "children": [ { "text": "Start of season (SOS):" } ], "type": "b" }, { "text": " date of the start of the season defined as the date when the PPI has increased to the 20% level of the average annual PPI amplitude (Jin et al., 2017). The average annual PPI amplitude is the difference between the average peak level and the average base level for each pixel." } ], "type": "li" }, { "children": [ { "text": "" }, { "children": [ { "text": "End of season (EOS):" } ], "type": "b" }, { "text": "\u00a0date of the end of the season defined as the date when the PPI drops under the 20% level of the average annual PPI amplitude" }, { "children": [ { "text": " " } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Jin, H., J&#xF6;nsson, A. M., Bolmgren, K., Langvall, O. and Eklundh, L., 2017, 'Disentangling remotely-sensed plant phenology and snow seasonality at northern Europe using MODIS and the plant phenology index', <i>Remote Sensing of Environment</i> 198, pp. 203&#x2013;212.</div>\n</div>\n", "footnoteTitle": "Jin, H., 2017, Disentangling remotely-sensed plant phen, Remote Sensing of Environment", "uid": "XlyDS", "zoteroId": "Z7HDSKP3" }, "type": "zotero" }, { "text": "." } ], "type": "li" }, { "children": [ { "text": "" }, { "children": [ { "text": "Large integral:" } ], "type": "b" }, { "text": " integral of the fitted function between the start and end of the season." } ], "type": "li" }, { "children": [ { "text": "" }, { "children": [ { "text": "Small integral:" } ], "type": "b" }, { "text": " integral of the differences between the fitted function and the base level from start to end of the season." } ], "type": "li" } ], "type": "ul" }, { "children": [ { "text": "Seasonal amplitude is calculated as the difference between the fitted curve maximum and the base level" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_4" } }, { "text": ". The SOS and EOS points on the curve are then given as the fraction of the amplitude,\u00a0 i.e. the date when the fitted curve reaches/drops below the defined percentage of the seasonal amplitude. For this indicator, a level of 20% of the seasonal PPI amplitude was used as the SOS and EOS detection thresholds." } ], "type": "p" }, { "children": [ { "text": " " } ], "type": "p" }, { "children": [ { "text": "The output of the process is a productivity metric for each year of the time series 2000-2016 (17 years) covering the " }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": null } }, { "text": "" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": null } }, { "text": "EEA-38 territory (the 27 EU Member States plus Iceland, Lichtenstein, Norway, Switzerland and Turkey, and six collaborating countries, Albania, Bosnia and Herzegovina, North Macedonia, Serbia and Kosovo) and the United Kingdom" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_5" } }, { "text": "" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_6" } }, { "text": "" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_7" } }, { "text": ". The spatial resolution of the productivity data set is at a pixel size of 500 m \u00d7 500 m. To address changes in productivity, a linear regression was fit to the productivity time series of each grid cell of the data set. As the PPI, and consequently also productivity, is a dimensionless measure, the change was expressed as the " }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": null } }, { "text": "" }, { "children": [ { "text": "R" } ], "type": "i" }, { "text": " value of the linear regression model instead of the slope of the fitted model. The " }, { "children": [ { "text": "R" } ], "type": "i" }, { "text": " value, i.e. the coefficient of determination, is expressed between -1 and 1. It shows how close the data are to the fitted regression line. In general, the higher the value the better the model fits the data. The advantage of the " }, { "children": [ { "text": "R" } ], "type": "i" }, { "text": " value is that unlike the slope of the linear regression model the " }, { "children": [ { "text": "R" } ], "type": "i" }, { "text": " value can be compared across bioclimatic regions and between various ecosystems. The change was also expressed as the relative growth. The relative growth is expressed in percentage and is calculated as the change between the first and the last year of the time series in proportion of the first year\u2019s productivity value. \u00a0" } ], "type": "p" }, { "children": [ { "text": "" } ], "type": "p" }, { "children": [ { "text": "A detailed description of the methodology for calculating the productivity metric can be found in the " }, { "children": [ { "text": "Timesat software manual" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Jin, H., J&#xF6;nsson, A. M., Bolmgren, K., Langvall, O. and Eklundh, L., 2017, 'Disentangling remotely-sensed plant phenology and snow seasonality at northern Europe using MODIS and the plant phenology index', <i>Remote Sensing of Environment</i> 198, pp. 203&#x2013;212.</div>\n</div>\n", "footnoteTitle": "Jin, H., 2017, Disentangling remotely-sensed plant phen, Remote Sensing of Environment", "uid": "xg2Z-", "zoteroId": "Z7HDSKP3" }, "type": "zotero" }, { "text": "." } ], "type": "p" }, { "children": [ { "text": "" } ], "type": "p" }, { "children": [ { "text": "" }, { "children": [ { "text": "Methodology for gap filling" } ], "type": "b" }, { "text": "" } ], "type": "p" }, { "children": [ { "text": "The productivity metrics have no gaps.\u00a0" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": null } }, { "text": "" } ], "type": "p" } ]
Data sources and providers { "readOnly": true, "data": [ { "@id": "e76f4d16-7457-44cc-bd81-462f6eb9865f", "link": "https://www.eea.europa.eu/data-and-maps/data/annual-above-ground-vegetation-productivity-1", "organisation": "European Environment Agency (EEA)", "title": "Annual above ground vegetation productivity time-series" } ] }
Definition [ { "children": [ { "text": "The indicator addresses trends in land surface productivity derived from remote sensing-observed time series of vegetation indices. The vegetation index used in the indicator is the " }, { "children": [ { "text": "Plant Phenology Index (PPI)" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Jin, H. and Eklundh, L., 2014, 'A physically based vegetation index for improved monitoring of plant phenology', <i>Remote Sensing of Environment</i> 152, pp. 512&#x2013;525.</div>\n</div>\n", "footnoteTitle": "Jin, H, 2014, A physically based vegetation index for , Remote Sensing of Environment", "uid": "1mEFY", "zoteroId": "FRBJ8SSA" }, "type": "zotero" }, { "text": ". The PPI is based on the MODIS Nadir BRDF-Adjusted Reflectance product (MODIS MCD43 NBAR). The product provides reflectance data for the MODIS \u2018land\u2019 bands (1-7) adjusted using a bi-directional reflectance distribution function. This function models values as if they were collected from a nadir-view, to remove so-called cross-track illumination effects. The PPI is a new vegetation index optimised for efficient monitoring of vegetation phenology. It is derived from radiative transfer solution using reflectance in visible-red and near-infrared (NIR) spectral domains. The PPI has a linear relationship with the canopy green leaf area index (LAI) and its temporal pattern is highly similar to the temporal pattern of gross primary productivity (GPP) estimated by flux towers at ground reference stations. The PPI is less affected by the presence of snow than commonly used vegetation indices, such as the Normalized Difference Vegetation Index (NDVI) or the Enhanced Vegetation Index (EVI)." } ], "type": "p" }, { "children": [ { "text": "The product is distributed with 500-m-pixel size (MODIS Sinusoidal Grid) with an 8-day compositing period." } ], "type": "p" } ]
Unit of measure [ { "children": [ { "text": "" }, { "children": [ { "text": "Measurement unit:" } ], "type": "b" }, { "text": " land productivity metrics are dimensionless. They are calculated as the integral area under the yearly phenological curve, with the function describing the growing season from the season start to the season end." } ], "type": "p" }, { "children": [ { "text": "" }, { "children": [ { "text": "Spatial units:" } ], "type": "b" }, { "text": " the proposed indicator is delivered as a set of raster data layers with cell size of 500m by 500m." } ], "type": "p" } ]
Policy / environmental relevance [ { "children": [ { "text": "Addressing ecosystem services and their complex interactions calls for a coherent approach to understanding the coupled human-environment system." } ], "type": "p" }, { "children": [ { "text": "In November 2013, the European Parliament and the Council adopted the 7th EAP, \u2018Living well, within the limits of our planet\u2019" }, { "children": [ { "text": "" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">EU, 2013, Decision No&#xA0;1386/2013/EU of the European Parliament and of the Council of 20&#xA0;November 2013 on a General Union Environment Action Programme to 2020 &#x2018;Living well, within the limits of our planet&#x2019;, OJ L 354, 28.12.2013, p. 171-200.</div>\n</div>\n", "footnoteTitle": "EU, Decision No\u00a01386/2013/EU of the European Parliament and of the Council of 20\u00a0November 2013 on a General Union Environment Action Programme to 2020 \u2018Living well, within the limits of our planet\u2019", "uid": "aCetB", "zoteroId": "HP9YP37K" }, "type": "zotero" }, { "text": ". The degradation of ecosystems is recognised as one of the major threats to the provision of ecosystem services, biodiversity and Europe\u2019s resilience to climate change and natural disasters within the 7th EAP, in priority objective 1, paragraph 23. Priority objective 5, paragraph 66, states that environmental monitoring is one of the cornerstones of the Union\u2019s environmental policy, and, within priority objective 5, paragraph 71, the mapping and assessment of ecosystem services are recognised as a necessary basis for developing the most appropriate responses to environmental change." } ], "type": "p" }, { "children": [ { "text": "The 7th EAP is intended to help guide EU action on the environment and climate change up to and beyond 2020. It highlights that \u2018Action to mitigate and adapt to climate change will increase the resilience of the Union\u2019s economy and society, while stimulating innovation and protecting the Union\u2019s natural resources\u2019. Consequently, several priority objectives of the 7th EAP refer to climate change adaptation." } ], "type": "p" }, { "children": [ { "text": "In February 2021, the European Commission presented the " }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": null } }, { "text": "EU adaptation strategy package" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_1" } }, { "text": "" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msocom_2" } }, { "text": ". The new strategy sets out how the\u00a0" }, { "children": [ { "text": "European Union can adapt to the unavoidable impacts of climate change" } ], "type": "b" }, { "text": "\u00a0and become\u00a0" }, { "children": [ { "text": "climate resilient by 2050." } ], "type": "b" }, { "text": " One of the objectives of the strategy is to ensure better-informed decision-making, which will be achieved by bridging knowledge gaps and further developing the European climate adaptation platform (Climate-ADAPT) as the \u2018one-stop shop\u2019 for adaptation information in Europe" }, { "children": [ { "text": "" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">EC and EEA, 2021, 'Climate-ADAPT', <i>European Commission and European Environment Agency</i> (http://climate-adapt.eea.europa.eu/) accessed March 6, 2021.</div>\n</div>\n", "footnoteTitle": "EC, 2021, Climate-ADAPT", "uid": "_UhIm", "zoteroId": "DRL66ZF2" }, "type": "zotero" }, { "text": ". Climate-ADAPT has been developed jointly by the European Commission and the EEA to share knowledge on (1) observed and projected climate change and its impacts on environmental and social systems and on human health, (2) relevant research, (3) EU, transnational, national and sub-national adaptation strategies and plans, and (4) adaptation case studies." } ], "type": "p" }, { "children": [ { "text": "In May 2020, the EU adopted a Biodiversity Strategy to 2030, related to protecting and restoring nature. The strategy states that \u2018the biodiversity crisis and the climate crisis are intrinsically linked. Climate change accelerates the destruction of the natural world through droughts, flooding and wildfires, while the loss and unsustainable use of nature are in turn key drivers of climate change\u2019. Droughts are negatively affecting agricultural ecosystems and food security, the resilience of forest ecosystems and the ability of green urban spaces to protect people against heat waves. In particular, the impacts of extended droughts on ecosystems need to be assessed because they can lead to significant loss of vegetation productivity and irreversible damage to the condition of ecosystems and can lead to land degradation." }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msoanchor_1" } }, { "text": "" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "#_msoanchor_2" } }, { "text": "" }, { "children": [ { "text": "" } ], "type": "link", "data": { "url": "https://ec.europa.eu/clima/eu-action/adaptation-climate-change/eu-adaptation-strategy_fr#:~:text=EU%20Adaptation%20Strategy%20The%20European%20Commission%20adopted%20its,climate%20change%20and%20become%20climate%20resilient%20by%202050." } }, { "text": "" } ], "type": "p" } ]
Frequency of dissemination 2
Accuracy and uncertainties [ { "children": [ { "text": "" }, { "children": [ { "text": "Methodology uncertainty" } ], "type": "b" }, { "text": "" } ], "type": "p" }, { "children": [ { "text": "One area of uncertainty related to the choice of the fitting function in Timesat. In the scientific literature, several fitting methods have been used and proposed. In this analyses, logistic functions were chosen since they are well founded in the scientific literature" }, { "children": [ { "text": " " } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Zhang, X., Friedl, M. A., Schaaf, C. B., Strahler, A. H., Hodges, J. C. F., Gao, F., Reed, B. C. and Huete, A., 2003, 'Monitoring vegetation phenology using MODIS', <i>Remote Sensing of Environment</i> 84, pp. 471&#x2013;475.</div>\n</div>\n", "footnoteTitle": "Zhang, X., 2003, Monitoring vegetation phenology using MO, Remote Sensing of Environment", "uid": "C2vIZ", "zoteroId": "R7SPLSQ7" }, "type": "zotero" }, { "text": "" }, { "children": [ { "text": "" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Fisher, J., Mustard, J. F. and Vadeboncoeur, M. A., 2006, 'Green leaf phenology at Landsat resolution: Scaling from the field to the satellite', <i>Remote Sensing of Environment</i> 100, pp. 265&#x2013;279.</div>\n</div>\n", "footnoteTitle": "Fisher, J., 2006, Green leaf phenology at Landsat resoluti, Remote Sensing of Environment", "uid": "qCUoO", "zoteroId": "IPLZD8V3" }, "type": "zotero" }, { "text": "" }, { "children": [ { "text": "" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Beck, P. S. A., Atzberger, C., H&#xF8;gda, K. A., Johansen, B. and Skidmore, K. A., 2006, 'Improved monitoring of vegetation dynamics at very high latitudes: A new method using MODIS NDVI', <i>Remote Sensing of Environment</i> 100, pp. 321&#x2013;334.</div>\n</div>\n", "footnoteTitle": "Beck, P. S. A., 2006, Improved monitoring of vegetation dynami, Remote Sensing of Environment", "uid": "TR0uO", "zoteroId": "PD3QZGC6" }, "type": "zotero" }, { "text": ", and in a recent study have been found to be one of the most robust methods for regional phenology estimation" }, { "children": [ { "text": "" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Cai, Z. Z., J&#xF6;nsson, P., Jin, H. and Eklundh, L., 2017, 'Performance of smoothing methods for reconstructing NDVI time-series and estimating vegetation phenology from MODIS data', <i>Remote Sensing</i> 9, 1271.</div>\n</div>\n", "footnoteTitle": "Cai, Z. Z., 2017, Performance of smoothing methods for rec, Remote Sensing", "uid": "PqGOe", "zoteroId": "CPBZTJ6X" }, "type": "zotero" }, { "text": "." } ], "type": "p" }, { "children": [ { "text": "Another source of uncertainty is the detection of the SOS and EOS points on the seasonal vegetation profile. To address appropriate levels for SOS and EOS, we analysed estimates of GPP (gross primary productivity) from ground-measured data from carbon flux towers from the international Fluxnet network. This was done to evaluate if there was any significant difference in the SOS and EOS estimated from these measurements between different land cover classes. The analysis did not indicate any clear separability between the classes. This was because of high variability in the GPP data, and hence there was no basis for making individual choices for different land cover classes or climate zones. Therefore, a fixed threshold of 20% of the annual PPI amplitude was used in the indicator assessment process. This level was chosen based on the analyses in " }, { "children": [ { "text": "Jin et al. (2017)" } ], "data": { "footnote": "<?xml version=\"1.0\"?>\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; \">\n <div class=\"csl-entry\">Jin, H., J&#xF6;nsson, A. M., Bolmgren, K., Langvall, O. and Eklundh, L., 2017, 'Disentangling remotely-sensed plant phenology and snow seasonality at northern Europe using MODIS and the plant phenology index', <i>Remote Sensing of Environment</i> 198, pp. 203&#x2013;212.</div>\n</div>\n", "footnoteTitle": "Jin, H., 2017, Disentangling remotely-sensed plant phen, Remote Sensing of Environment", "uid": "yUVjw", "zoteroId": "Z7HDSKP3" }, "type": "zotero" }, { "text": ". It cannot be ruled out that the use of a single threshold across Europe may have introduced some uncertainty" }, { "children": [ { "text": ".\u00a0" } ], "type": "b" }, { "text": "" } ], "type": "p" }, { "children": [ { "text": "" }, { "children": [ { "text": "Data set uncertainty" } ], "type": "b" }, { "text": "" } ], "type": "p" }, { "children": [ { "text": "The data set represents several plant functional types aggregated with pixels of 500 m \u00d7 500 m. Therefore, the data set can be used at only the ecosystem level, indicating productivity changes of main plant functional types. As opposed to filed measurement, remote-sensing products measure vegetation light absorption from a satellite at heights of several hundred kilometres, which might introduce bias due to atmospheric disturbances." } ], "type": "p" }, { "children": [ { "text": "" }, { "children": [ { "text": "Rationale uncertainty" } ], "type": "b" }, { "text": "" } ], "type": "p" }, { "children": [ { "text": "No uncertainty has been specified." } ], "type": "p" } ]
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