Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jhydrol.2017.05.060 |
Impact of vegetation dynamics on hydrological processes in a semi-arid basin by using a land surface-hydrology coupled model | |
Jiao, Yang1; Lei, Huimin1; Yang, Dawen1; Huang, Maoyi2; Liu, Dengfeng3; Yuan, Xing4 | |
通讯作者 | Lei, Huimin |
来源期刊 | JOURNAL OF HYDROLOGY
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ISSN | 0022-1694 |
EISSN | 1879-2707 |
出版年 | 2017 |
卷号 | 551页码:116-131 |
英文摘要 | Land surface models (LSMs) are widely used to understand the interactions between hydrological processes and vegetation dynamics, which is important for the attribution and prediction of regional hydrological variations. However, most LSMs have large uncertainties in their representations of eco-hydrological processes due to deficiencies in hydrological parameterizations. In this study, the Community Land Model version 4 (CLM4) LSM was modified with an advanced runoff generation and flow routing scheme, resulting in a new land surface-hydrology,coupled model, CLM-GBHM. Both models were implemented in the Wudinghe River Basin (WRB), which is a semi-arid basin located in the middle reaches of the Yellow River, China. Compared with CLM, CLM-GBHM increased the Nash Sutcliffe efficiency for daily river discharge simulation (1965-1969) from-0.03 to 0.23 and reduced the relative bias in water table depth simulations (2010-2012) from 32.4% to 13.4%. The CLM-GBHM simulations with static, remotely sensed and model-predicted vegetation conditions showed that the vegetation in the WRB began to recover in the 2000s due to the Grain for Green Program but had not reached the same level of vegetation cover as regions in natural eco-hydrological equilibrium. Compared with a simulation using remotely sensed vegetation cover, the simulation with a dynamic vegetation model that considers only climate-induced change showed a 10.3% increase in evapotranspiration, a 47.8% decrease in runoff, and a 62.7% and 71.3% deceleration in changing trend of the outlet river discharge before and after the year 2000, respectively. This result suggests that both natural and anthrojJogenic factors should be incorporated in dynamic vegetation models to better simulate the eco-hydrological cycle. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Eco-hydrological modeling Model coupling Vegetation dynamics Regional hydrological change |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000407538800011 |
WOS关键词 | YANGTZE-RIVER BASIN ; EARTH SYSTEM MODELS ; LOESS-PLATEAU ; CLIMATE-CHANGE ; STOMATAL CONDUCTANCE ; TEMPORAL VARIATION ; YELLOW-RIVER ; RUNOFF ; CHINA ; STREAMFLOW |
WOS类目 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Engineering ; Geology ; Water Resources |
来源机构 | 中国科学院大气物理研究所 ; 清华大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/200586 |
作者单位 | 1.Tsinghua Univ, State Key Lab Hydrosci & Engn, Dept Hydraul Engn, Beijing 100084, Peoples R China; 2.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA USA; 3.Xian Univ Technol, State Key Lab Base Ecohydraul Engn Arid Area, Xian 710048, Shaanxi, Peoples R China; 4.Chinese Acad Sci, RCE TEA, Inst Atmospher Phys, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Jiao, Yang,Lei, Huimin,Yang, Dawen,et al. Impact of vegetation dynamics on hydrological processes in a semi-arid basin by using a land surface-hydrology coupled model[J]. 中国科学院大气物理研究所, 清华大学,2017,551:116-131. |
APA | Jiao, Yang,Lei, Huimin,Yang, Dawen,Huang, Maoyi,Liu, Dengfeng,&Yuan, Xing.(2017).Impact of vegetation dynamics on hydrological processes in a semi-arid basin by using a land surface-hydrology coupled model.JOURNAL OF HYDROLOGY,551,116-131. |
MLA | Jiao, Yang,et al."Impact of vegetation dynamics on hydrological processes in a semi-arid basin by using a land surface-hydrology coupled model".JOURNAL OF HYDROLOGY 551(2017):116-131. |
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