globalchange  > 气候变化与战略
DOI: 10.1111/ele.13455
论文题名:
Sensitivity of primary production to precipitation across the United States
作者: Maurer G.E.; Hallmark A.J.; Brown R.F.; Sala O.E.; Collins S.L.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期:3
语种: 英语
英文关键词: Drought ; ecosystem function ; interannual variability ; photosynthesis ; remote sensing
Scopus关键词: carbon cycle ; climate change ; ecosystem ; grassland ; United States ; Carbon Cycle ; Climate Change ; Ecosystem ; Grassland ; United States
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
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158987
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Maurer G.E.,Hallmark A.J.,Brown R.F.,et al. Sensitivity of primary production to precipitation across the United States[J]. Ecology Letters,2020-01-01,23(3)
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