Effects of climate and land-use change on green-water variations in the Middle Yellow River, China
Effects of climate and land-use change on green-water variations in the Middle Yellow River, China
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DOI：
10.1080/02626667.2012.746462
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发表时间：
2013-01
影响因子：
3.5
通讯作者：
Jiongxin Xu
中科院分区：
文献类型：
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作者：
Jiongxin Xu
摘要水资源管理既要涵盖蓝色水域，也要涵盖绿色水域。对于流域尺度的绿水管理，采用绿水系数，定义为年绿水与年降水量之比。基于1950年至2007年黄河中游中国的资料，我们研究了CGW在一些影响因素下的时间变化。CGW呈下降趋势。强调了土地管理的变化对CGW的影响，反映在水土保持措施面积(A Sw)的增加上。通过多元回归分析，得到年降水量和气温的5年移动平均贡献分别为51%、37%和12%。研究结果可能为更好地管理水资源，包括黄河流域的绿色和蓝色水流提供有用的信息。主编Z.W.Kundzewicz；副主编D.Gerten引用徐俊贤，2013年。气候和土地利用变化对黄河中游绿水变化的影响，中国。水文科学学报，58(1)，1-12。
Abstract Water resources management should cover both blue water and green water. For green-water management at the river drainage basin scale, the green-water coefficient (C gw) is adopted, defined as the ratio of annual green water to annual precipitation. Based on data from the Middle Yellow River basin, China, for the period 1950 to 2007, we studied the temporal variation in C gw in response to some influencing factors. A decreasing trend in C gw was found. The influence of changes in land management on C gw, reflected by an increase in the area (A sw) of soil and water conservation measures, is emphasized. Using multiple regression analysis, the contributions of A sw and the 5-year moving averages of annual precipitation and air temperature were estimated as 51, 37 and 12%, respectively. The results may provide useful information for better management of water resources, including green and blue water flows in the Yellow River basin. Editor Z.W. Kundzewicz; Associate editor D. Gerten Citation Xu, J.-X., 2013. Effects of climate and land-use change on green-water variations in the Middle Yellow River, China. Hydrological Sciences Journal, 58 (1), 1–12.