Streamflow variability response to climate change and cascade dams development in a coastal China watershed
Streamflow variability response to climate change and cascade dams development in a coastal China watershed
复制标题
中国沿海流域径流变化对气候变化的响应和梯级水坝的开发
DOI：
10.1016/j.ecss.2015.10.002
复制
发表时间：
2015-12
期刊：
影响因子：
--
通讯作者：
Hong Huasheng
中科院分区：
文献类型：
--
作者：
Zhang Zhenyu;Huang Jinhang;Huang Yaling;Hong Huasheng
沿海流域及其径流变化已成为水文学和水资源管理中特别关注的问题。将生态水文分析与环境径流分析相结合，研究了九龙江流域径流变化对气候变化和人类活动的响应。结果表明，人类活动是JRW径流减少的主要原因。北河、西河可利用水资源分别减少4.34%和3.17%。除气候变化外，流域特征对北河和西江的径流量和径流流态也有一定影响。长江干流梯级坝的修建，使水体从自由流动的河流变为梯级湖泊，改变了枯水期、丰水期的流态，也改变了洪水的流态。月低流量几乎在所有季节都有所增加，高流量脉冲趋于均匀，JRW内的洪泛型变化不大。本文以东南沿海流域为例，阐述了一种综合评价径流变异性的方法，该方法可以方便地评估径流变异性对气候变化和JRW内两条相邻河流的梯级坝发展的响应，希望能为水资源管理者提供应对环境变化对流域生态系统影响的策略。
Coastal watersheds and their changes in streamflow have become a particular concern in hydrology and water resource management. The ecohydrologic analysis and environmental flow component were coupled in this study to assess the streamflow variability response to climate change and human activities in the Jiulong River Watershed (JRW). Results showed that human activities were the main contributing factors to decreasing streamflow in the JRW. Available water resources decreased by 4.34% and 3.17% in the North River and West River, respectively. In addition to climate change, watershed characteristics partly influenced the streamflow quantity and regime in the North River and West River. The cascade dam construction along the mainstream of the JRW, which made the water bodies from free-flowing rivers to cascade lakes, altered the patterns of streamflow regime in terms of low and high flow events, as well as the flood pattern. The monthly low flow increased in almost all seasons; the high flow pulses homogenized; and little variation in the flood pattern was detected within the JRW. We present a case study in a southeast coastal watershed to illustrate a combined approach that could facilitate to evaluate the streamflow variability in terms of streamflow quantity and regime response to climate change and cascade dams development in two adjacent rivers within the JRW, which could hopefully provide water managers on the strategies to fight the effect of environmental changes on watershed ecosystem.
登录
查看更多内容
DOI：
10.1111/j.1752-1688.2007.00099.x
发表时间：
2007-12
期刊：
JAWRA Journal of the American Water Resources Association
影响因子：
--
作者：
Ruth E. Mathews;B. Richter
通讯作者：
Ruth E. Mathews;B. Richter
影响因子：
3.9
作者：
Kehui Xu;J. Milliman;Hui Xu
通讯作者：
Kehui Xu;J. Milliman;Hui Xu
影响因子：
6.3
作者：
M. Renner;R. Seppelt;C. Bernhofer
通讯作者：
M. Renner;R. Seppelt;C. Bernhofer
影响因子：
2.8
作者：
Robynne A. Lawrie;D. Stretch
通讯作者：
Robynne A. Lawrie;D. Stretch
DOI：
10.1002/joc.2429
发表时间：
2011-09
期刊：
International Journal of Climatology
影响因子：
--
作者：
M. Doyle;R. Saurral;V. Barros
通讯作者：
M. Doyle;R. Saurral;V. Barros