气候变化领域集成服务门户(CCPortal): Sensitivity of primary production to precipitation across the United States

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DOI	10.1111/ele.13455
	Sensitivity of primary production to precipitation across the United States
	Maurer G.E.; Hallmark A.J.; Brown R.F.; Sala O.E.; Collins S.L.
发表日期	2020
ISSN	1461023X
卷号	23 期号:3
英文摘要	Primary production, a key regulator of the global carbon cycle, is highly responsive to variations in climate. Yet, a detailed, continental-scale risk assessment of climate-related impacts on primary production is lacking. We combined 16 years of MODIS NDVI data, a remotely sensed proxy for primary production, with observations from 1218 climate stations to derive values of ecosystem sensitivity to precipitation and aridity. For the first time, we produced an empirically-derived map of ecosystem sensitivity to climate across the conterminous United States. Over this 16-year period, annual primary production values were most sensitive to precipitation and aridity in dryland and grassland ecosystems. Century-long trends measured at the climate stations showed intensifying aridity and climatic variability in many of these sensitive regions. Dryland ecosystems in the western US may be particularly vulnerable to reductions in primary production and consequent degradation of ecosystem services as climate change and variability increase in the future. © 2020 John Wiley & Sons Ltd/CNRS
英文关键词	Drought; ecosystem function; interannual variability; photosynthesis; remote sensing
语种	英语
scopus关键词	carbon cycle; climate change; ecosystem; grassland; United States; Carbon Cycle; Climate Change; Ecosystem; Grassland; United States
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120923
作者单位	Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, United States; Department of Biology, University of New Mexico, Albuquerque, NM 87131, United States; School of Life Sciences, Arizona State University, Tempe, AZ 85287, United States; School of Sustainability, Arizona State University, Tempe, AZ 85287, United States; Global Drylands Center, Arizona State University, Tempe, AZ 85287, United States
推荐引用方式 GB/T 7714	Maurer G.E.,Hallmark A.J.,Brown R.F.,et al. Sensitivity of primary production to precipitation across the United States[J],2020,23(3).
APA	Maurer G.E.,Hallmark A.J.,Brown R.F.,Sala O.E.,&Collins S.L..(2020).Sensitivity of primary production to precipitation across the United States.Ecology Letters,23(3).
MLA	Maurer G.E.,et al."Sensitivity of primary production to precipitation across the United States".Ecology Letters 23.3(2020).