气候变化领域集成服务门户(CCPortal): Limits to agricultural land for retaining acceptable levels of local biodiversity

CCPortal

DOI	10.1038/s41893-019-0300-8
	Limits to agricultural land for retaining acceptable levels of local biodiversity
	Usubiaga-Liaño A.; Mace G.M.; Ekins P.
发表日期	2019
ISSN	2398-9629
起始页码	491
结束页码	498
卷号	2 期号:6
英文摘要	Several studies have proposed maximum allowable areas of cropland (12.6–15.18% of terrestrial area) as environmental sustainability requirements, yet none have so far considered the minimum biodiversity levels required to support ecosystem functioning at acceptable levels. Here, we use a decision tree-based optimization model to estimate the maximum area of cropland and pasture that would meet—or come closest to meeting—the acceptable levels of local biodiversity proposed in the literature (90% local species abundance and 80% local species richness compared with an undisturbed baseline). We model four scenarios under which we vary two key sources of uncertainty: the maximization function and the potential of secondary vegetation to maintain biodiversity. The model finds that a maximum of 4.62–11.17% of the global ice-free land can be allocated to cropland (and 7.86–15.67% to pasture) to meet these biodiversity constraints—a lower level than was suggested in previous studies. The results are very sensitive to the minimum acceptable biodiversity values and the biodiversity response factors used, but the size of the disparity between current cropland area and our results suggests that actions to limit or reduce the area dedicated to agriculture should feature more prominently in policy discussions. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Decision trees; Forestry; Sustainable development; Biodiversity values; Ecosystem functioning; Environmental sustainability; Optimization modeling; Policy discussion; Secondary vegetation; Sources of uncertainty; Species abundance; Biodiversity
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/163526
作者单位	UCL Institute for Sustainable Resources, London, United Kingdom; UCL Centre for Biodiversity and Environment Research, London, United Kingdom
推荐引用方式 GB/T 7714	Usubiaga-Liaño A.,Mace G.M.,Ekins P.. Limits to agricultural land for retaining acceptable levels of local biodiversity[J],2019,2(6).
APA	Usubiaga-Liaño A.,Mace G.M.,&Ekins P..(2019).Limits to agricultural land for retaining acceptable levels of local biodiversity.Nature Sustainability,2(6).
MLA	Usubiaga-Liaño A.,et al."Limits to agricultural land for retaining acceptable levels of local biodiversity".Nature Sustainability 2.6(2019).