Impacts of increased CO2 on the hydrologic response over the Xijiang (West River) basin, South China
Impacts of increased CO2 on the hydrologic response over the Xijiang (West River) basin, South China
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CO2增加对华南西江流域水文响应的影响
DOI:
10.1016/j.jhydrol.2013.09.051
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发表时间:
2013-11
影响因子:
6.4
通讯作者:
Ji Chen
中科院分区:
文献类型:
--
作者:
Jun Niu;Bellie Sivakumar;Ji Chen
Increases in atmospheric carbon dioxide (CO2) concentration levels may affect terrestrial hydrologic processes through changes in evapotranspiration. This study assesses the hydrologic response to the elevated CO2levels for the Xijiang (West River) basin in South China by applying the Variable Infiltration Capacity (VIC) model. The standard VIC model is modified by incorporating a mechanistic description of vegetation-type specific responses of both stomatal resistance and leaf area increase based on plant physiological studies. The dynamic (monthly) rises of CO2concentration are introduced to estimate the historical impacts of increased CO2over the past two decades (1991–2010). The cropland is identified as the most important contributor in the response of streamflow increase for the region. For a doubled atmospheric CO2concentration scenario (660 ppm), the streamflow might rise about 3% (i.e. 21.8 mm/yr) under the baseline climatic conditions. Decreases in evapotranspiration and associated streamflow increases in response to ambient CO2exposures are expected to episodically increase the frequency and severity of flood and affect flow-dependent aquatic biota in forested watersheds.
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DOI:
10.1007/s00477-010-0414-z
发表时间:
2011-05
影响因子:
4.2
作者:
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通讯作者:
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DOI:
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期刊:
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影响因子:
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1999-12
期刊:
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影响因子:
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通讯作者:
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影响因子:
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通讯作者:
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10.3402/tellusa.v48i5.12200
发表时间:
1996-10
期刊:
Tellus A
影响因子:
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通讯作者:
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