气候变化领域集成服务门户(CCPortal): The human–environment nexus and vegetation–rainfall sensitivity in tropical drylands

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DOI	10.1038/s41893-020-00597-z
	The human–environment nexus and vegetation–rainfall sensitivity in tropical drylands
	Abel C.; Horion S.; Tagesson T.; De Keersmaecker W.; Seddon A.W.R.; Abdi A.M.; Fensholt R.
发表日期	2020
ISSN	2398-9629
英文摘要	Global climate change is projected to lead to an increase in both the areal extent and degree of aridity in the world’s drylands. At the same time, the majority of drylands are located in developing countries where high population densities and rapid population growth place additional pressure on the ecosystem. Thus, drylands are particularly vulnerable to environmental changes and large-scale environmental degradation. However, little is known about the long-term functional response of vegetation to such changes induced by the interplay of complex human–environmental interactions. Here we use time series of satellite data to show how vegetation productivity in relation to water availability, which is a major aspect of vegetation functioning in tropical drylands, has changed over the past two decades. In total, one-third of tropical dryland ecosystems show significant (P < 0.05) changes in vegetation–rainfall sensitivity with pronounced differences between regions and continents. We identify population as the main driver of negative changes, especially for developing countries. This is contrasted by positive changes in vegetation–rainfall sensitivity in richer countries, probably resulting from favourable climatic conditions and/or caused by an intensification and expansion of human land management. Our results highlight geographic and economic differences in the relationship between vegetation–rainfall sensitivity and associated drivers in tropical drylands, marking an important step towards the identification, understanding and mitigation of potential negative effects from a changing world on ecosystems and human well-being. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Climate change; Developing countries; Ecosystems; Population statistics; Rain; Tropics; Environmental change; Environmental interactions; Functional response; Global climate changes; High population density; Potential negative effects; Rapid population growth; Vegetation productivity; Vegetation
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163012
作者单位	Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark; Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden; Laboratory of Geo-Information Science and Remote Sensing, Wageningen University, Wageningen, Netherlands; Department of Biological Sciences, University of Bergen, Bergen, Norway; Bjerknes Centre for Climate Research, Bergen, Norway; Centre for Environmental and Climate Research, Lund University, Lund, Sweden
推荐引用方式 GB/T 7714	Abel C.,Horion S.,Tagesson T.,等. The human–environment nexus and vegetation–rainfall sensitivity in tropical drylands[J],2020.
APA	Abel C..,Horion S..,Tagesson T..,De Keersmaecker W..,Seddon A.W.R..,...&Fensholt R..(2020).The human–environment nexus and vegetation–rainfall sensitivity in tropical drylands.Nature Sustainability.
MLA	Abel C.,et al."The human–environment nexus and vegetation–rainfall sensitivity in tropical drylands".Nature Sustainability (2020).