globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1914436117
论文题名:
Large and projected strengthening moisture limitation on end-of-season photosynthesis
作者: Zhang Y.; Parazoo N.C.; Williams A.P.; Zhou S.; Gentine P.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:17
起始页码: 9216
结束页码: 9222
语种: 英语
英文关键词: Climate change ; End of photosynthesis ; Gross primary production (GPP) ; Solar induced fluorescence (SIF) ; Water stress
Scopus关键词: Article ; dry season ; energy balance ; flux assay ; photosynthesis ; priority journal ; remote sensing ; seasonal variation ; soil analysis ; soil moisture ; soil water content ; temperature ; vegetation ; warming ; water analysis ; water supply ; carbon cycle ; chemistry ; ecosystem ; environmental monitoring ; forest ; metabolism ; photosynthesis ; physiology ; plant ; procedures ; satellite imagery ; season ; soil ; sunlight ; chlorophyll ; water ; Carbon Cycle ; Chlorophyll ; Ecosystem ; Environmental Monitoring ; Forests ; Photosynthesis ; Plants ; Satellite Imagery ; Seasons ; Soil ; Sunlight ; Temperature ; Water
英文摘要: Terrestrial photosynthesis is regulated by plant phenology and environmental conditions, both of which experienced substantial changes in recent decades. Unlike early-season photosynthesis, which is mostly driven by temperature or wet-season onset, late-season photosynthesis can be limited by several factors and the underlying mechanisms are less understood. Here, we analyze the temperature and water limitations on the ending date of photosynthesis (EOP), using data from both remote-sensing and flux tower-based measurements. We find a contrasting spatial pattern of temperature and water limitations on EOP. The threshold separating these is determined by the balance between energy availability and soil water supply. This coordinated temperature and moisture regulation can be explained by “law of minimum,” i.e., as temperature limitation diminishes, higher soil water is needed to support increased vegetation activity, especially during the late growing season. Models project future warming and drying, especially during late season, both of which should further expand the water-limited regions, causing large variations and potential decreases in photosynthesis. © 2020 National Academy of Sciences. All rights reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164225
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Zhang, Y., Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, United States, Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Parazoo, N.C., Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, United States; Williams, A.P., Lamont–Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; Zhou, S., Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, United States, Lamont–Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States, Earth Institute, Columbia University, New York, NY 10027, United States; Gentine, P., Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, United States, Earth Institute, Columbia University, New York, NY 10027, United States

Recommended Citation:
Zhang Y.,Parazoo N.C.,Williams A.P.,et al. Large and projected strengthening moisture limitation on end-of-season photosynthesis[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(17)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zhang Y.]'s Articles
[Parazoo N.C.]'s Articles
[Williams A.P.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Zhang Y.]'s Articles
[Parazoo N.C.]'s Articles
[Williams A.P.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zhang Y.]‘s Articles
[Parazoo N.C.]‘s Articles
[Williams A.P.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.