Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072495 |
High sensitivity of gross primary production in the Rocky Mountains to summer rain | |
Berkelhammer, M.1; Stefanescu, I. C.1,2; Joiner, J.3; Anderson, L.4 | |
2017-04-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In the catchments of the Rocky Mountains, peak snowpack is declining in response to warmer spring temperatures. To understand how this will influence terrestrial gross primary production (GPP), we compared precipitation data across the intermountain west with satellite retrievals of solar-induced fluorescence (SIF), a proxy for GPP. Annual precipitation patterns explained most of the spatial and temporal variability of SIF, but the slope of the response was dependent on site to site differences in the proportion of snowpack to summer rain. We separated the response of SIF to different seasonal precipitation amounts and found that SIF was approximately twice as sensitive to variations in summer rain than snowpack. The response of peak GPP to a secular decline in snowpack will likely be subtle, whereas a change in summer rain amount will have precipitous effects on GPP. The study suggests that the rain use efficiency of Rocky Mountain ecosystems is strongly dependent on precipitation form and timing. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401847500025 |
WOS关键词 | WESTERN UNITED-STATES ; TERRESTRIAL CHLOROPHYLL FLUORESCENCE ; NORTH-AMERICAN MONSOON ; SATELLITE MEASUREMENTS ; CARBON BALANCE ; USE EFFICIENCY ; FOREST ; PHOTOSYNTHESIS ; VARIABILITY ; ECOSYSTEMS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26000 |
专题 | 气候变化 |
作者单位 | 1.Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA; 2.Univ Wyoming, Dept Geol & Geophys, Laramie, WY 82071 USA; 3.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 4.US Geol Survey, Geosci & Environm Change Sci Ctr, Box 25046, Denver, CO 80225 USA |
推荐引用方式 GB/T 7714 | Berkelhammer, M.,Stefanescu, I. C.,Joiner, J.,et al. High sensitivity of gross primary production in the Rocky Mountains to summer rain[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(8). |
APA | Berkelhammer, M.,Stefanescu, I. C.,Joiner, J.,&Anderson, L..(2017).High sensitivity of gross primary production in the Rocky Mountains to summer rain.GEOPHYSICAL RESEARCH LETTERS,44(8). |
MLA | Berkelhammer, M.,et al."High sensitivity of gross primary production in the Rocky Mountains to summer rain".GEOPHYSICAL RESEARCH LETTERS 44.8(2017). |
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