Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.ecolind.2012.11.010 |
Ecosystem functional units characterized by satellite observed phenology and productivity gradients: A case study for Europe | |
Ivits, E.; Cherlet, M.; Mehl, W.; Sommer, S. | |
通讯作者 | Ivits, E. |
来源期刊 | ECOLOGICAL INDICATORS
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ISSN | 1470-160X |
EISSN | 1872-7034 |
出版年 | 2013 |
卷号 | 27页码:17-28 |
英文摘要 | The present study demonstrates remote sensing derived phenological and productivity indicators of ecosystem functional dynamism. The indices were derived from SPOT VEGETATION NDVI data on 1 km spatial resolution across the pan-European continent using the Phenolo approach. The phenological and productivity indices explained 78% of the variance in the European ecosystem gradient measured by bio-climatic zones. Along this gradient climatic predictors could only explain 57% of the variance in the satellite metrics. Reclassification of the bio-climatic zones into phenology and productivity related ecosystem functional units (EFUs) selected five metrics related to the cyclic and permanent fraction of productivity, to the background, to the growing season start and the timing of the maximum NDVI value. Along the EFU gradient the climatic predictors explained over 90% of the variance of the remote sensing variables, 30% more than along the bio-climatic gradient. The EFUs showed strong correspondence to 14 land-cover types in Europe and the selected remote sensing metrics explained 86% of the variation in the land-cover classes. These results show that remote sensing derived parameters have tremendous potential for the quantification of ecosystem functional dynamism. Phenological and productivity metrics offer an indicator system for ecosystems that climatic indicators alone cannot manifest. Their potential to monitor the spatial pattern, status and inter-annual variability of ecosystems and vegetation cover can deliver reference status information for future assessments of the impacts of human or climate change induced ecosystem changes. (C) 2012 Elsevier Ltd. All rights reserved. |
英文关键词 | Ecosystem functional units Remote sensing Phenology Productivity Gradient analysis CART |
类型 | Article |
语种 | 英语 |
国家 | Italy |
收录类别 | SCI-E |
WOS记录号 | WOS:000314201700003 |
WOS关键词 | DIFFERENCE VEGETATION INDEX ; LAND-SURFACE PHENOLOGY ; CLIMATE ; TRENDS ; DESERTIFICATION ; DEGRADATION ; VARIABILITY ; GREENNESS ; REGION |
WOS类目 | Biodiversity Conservation ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/176727 |
作者单位 | EC Joint Res Ctr JRC, Land Resource Management Unit, I-21020 Ispra, VA, Italy |
推荐引用方式 GB/T 7714 | Ivits, E.,Cherlet, M.,Mehl, W.,et al. Ecosystem functional units characterized by satellite observed phenology and productivity gradients: A case study for Europe[J],2013,27:17-28. |
APA | Ivits, E.,Cherlet, M.,Mehl, W.,&Sommer, S..(2013).Ecosystem functional units characterized by satellite observed phenology and productivity gradients: A case study for Europe.ECOLOGICAL INDICATORS,27,17-28. |
MLA | Ivits, E.,et al."Ecosystem functional units characterized by satellite observed phenology and productivity gradients: A case study for Europe".ECOLOGICAL INDICATORS 27(2013):17-28. |
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