Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0236.1 |
Impact of Earth Greening on the Terrestrial Water Cycle | |
Zeng, Zhenzhong1; Piao, Shilong1,2; Li, Laurent Z. X.3; Wang, Tao2; Ciais, Philippe1,4; Lian, Xu1; Yang, Yuting5; Mao, Jiafu6,7; Shi, Xiaoying6,7; Myneni, Ranga B.8 | |
2018-04-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:7页码:2633-2650 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; France; Australia; USA |
英文摘要 | Leaf area index (LAI) is increasing throughout the globe, implying Earth greening. Global modeling studies support this contention, yet satellite observations and model simulations have never been directly compared. Here, for the first time, a coupled land-climate model was used to quantify the potential impact of the satellite-observed Earth greening over the past 30 years on the terrestrial water cycle. The global LAI enhancement of 8% between the early 1980s and the early 2010s is modeled to have caused increases of 12.06 2.4 mm yr(-1) in evapotranspiration and 12.1 +/- 2.7 mm yr(-1) in precipitation-about 55% +/- 25% and 28% +/- 6% of the observed increases in land evapotranspiration and precipitation, respectively. In wet regions, the greening did not significantly decrease runoff and soil moisture because it intensified moisture recycling through a coincident increase of evapotranspiration and precipitation. But in dry regions, including the Sahel, west Asia, northern India, the western United States, and the Mediterranean coast, the greening was modeled to significantly decrease soil moisture through its coupling with the atmospheric water cycle. This modeled soil moisture response, however, might have biases resulting from the precipitation biases in the model. For example, the model dry bias might have underestimated the soil moisture response in the observed dry area (e.g., the Sahel and northern India) given that the modeled soil moisture is near the wilting point. Thus, an accurate representation of precipitation and its feedbacks in Earth system models is essential for simulations and predictions of how soil moisture responds to LAI changes, and therefore how the terrestrial water cycle responds to climate change. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429456500006 |
WOS关键词 | LEAF-AREA INDEX ; GLOBAL LAND EVAPOTRANSPIRATION ; CLIMATE-CHANGE ; EVAPO-TRANSPIRATION ; NORTHERN ECOSYSTEMS ; SURFACE CONDUCTANCE ; GENERAL-CIRCULATION ; VEGETATION CHANGES ; CARBON-DIOXIDE ; SYSTEM MODELS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/20044 |
专题 | 气候变化 |
作者单位 | 1.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst Sci, Beijing, Peoples R China; 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China; 3.UPMC Univ Paris 06, Sorbonne Univ, CNRS, Lab Meteorol Dynam, Paris, France; 4.CEA CNRS UVSQ, Lab Sci Climat & Environm, Gif Sur Yvette, France; 5.CSIRO Land & Water, Black Mt, Canberra, ACT, Australia; 6.Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA; 7.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN USA; 8.Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA |
推荐引用方式 GB/T 7714 | Zeng, Zhenzhong,Piao, Shilong,Li, Laurent Z. X.,et al. Impact of Earth Greening on the Terrestrial Water Cycle[J]. JOURNAL OF CLIMATE,2018,31(7):2633-2650. |
APA | Zeng, Zhenzhong.,Piao, Shilong.,Li, Laurent Z. X..,Wang, Tao.,Ciais, Philippe.,...&Myneni, Ranga B..(2018).Impact of Earth Greening on the Terrestrial Water Cycle.JOURNAL OF CLIMATE,31(7),2633-2650. |
MLA | Zeng, Zhenzhong,et al."Impact of Earth Greening on the Terrestrial Water Cycle".JOURNAL OF CLIMATE 31.7(2018):2633-2650. |
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