Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR025843 |
Contrasting influences of human activities on hydrological drought regimes over China based on high‐resolution simulations | |
Xiaoli Yang; Mengru Zhang; Xiaogang He; Liliang Ren; Ming Pan; Xiaohan Yu; Zhongwang Wei; Justin Sheffield | |
2020-04-24 | |
发表期刊 | Water Resources Research
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出版年 | 2020 |
英文摘要 | How human activities have altered hydrological droughts (streamflow deficits) in China during the past five decades (1961‐2016) is investigated using the latest version (v2.0) of PCR‐GLOBWB model at high spatial resolution (~10 km). Although both human activities and climate variability have significant effects on river flows over China, there are large regional north‐south contrasts. Over northern China, human activities generally intensify hydrological droughts. We find that human activities exacerbated drought deficit by about 70%‐200% from 2004 to 2015. In contrast, droughts over southern China are generally alleviated by human activities. For instance, irrigation and water management (such as reservoir operation and water abstraction) increase drought StDef (standardized drought deficit volume) by about 80% in the Yellow River (north) but reduce it by about 20% in the Yangtze River (south). Human activities slightly reduce drought deficit in the Yangtze River due to the combination of large reservoir storage and low ratio of agriculture consumption to abstracted irrigation water. In contrast, hydrological drought is aggravated in the semi‐arid Yellow River basin because of high water consumption from agricultural sectors. This study suggests that human activities have contrasting influences on hydrological drought characteristics in the northern (intensification) and southern (mitigation) parts of China. Therefore, it is critical to consider the variable roles of human activities on hydrological drought in China when developing mitigation and adaptation strategies. |
领域 | 资源环境 |
URL | 查看原文 |
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/249182 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Xiaoli Yang,Mengru Zhang,Xiaogang He,等. Contrasting influences of human activities on hydrological drought regimes over China based on high‐resolution simulations[J]. Water Resources Research,2020. |
APA | Xiaoli Yang.,Mengru Zhang.,Xiaogang He.,Liliang Ren.,Ming Pan.,...&Justin Sheffield.(2020).Contrasting influences of human activities on hydrological drought regimes over China based on high‐resolution simulations.Water Resources Research. |
MLA | Xiaoli Yang,et al."Contrasting influences of human activities on hydrological drought regimes over China based on high‐resolution simulations".Water Resources Research (2020). |
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