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Position: Home > Articles > Evolutions of Water Resources in Typical Basin of Central Yunnan Province Under Changing Environment Bulletin of Soil and Water Conservation 2017,37 (2) 274-277

变化环境下滇中地区典型流域水资源演变特征

作  者:
丁文荣
单  位:
云南师范大学旅游与地理科学学院
关键词:
变化环境;滇中地区;水资源;蜻蛉河
摘  要:
[目的]以典型流域为研究对象,揭示变化环境下滇中地区水资源的演变特征,为区域水资源综合管理服务。[方法]以滇中地区蜻蛉河流域1963—2012年的月值径流实测资料为基础,采用线性倾向估计、Mann-Kendall非参数检验、小波分析和R/S分析等作为主要研究方法。[结果](1)蜻蛉河流域径流量年内分配极不均匀,主要集中在夏秋两季,而冬春两季占全年的百分比均较小;(2)自20世纪60年代以来,蜻蛉河流域径流量总体呈现出了减少的趋势,速率为4.80×107 m3/10a,但其变化趋势的尚未达到0.05的显著性水平;(3)研究时段内蜻蛉河流域径流量的变化经历了"多—少—多—少"的演变过程,2010年为一个典型突变年份;(4)从多时间尺度特征来看,蜻蛉河流域径流量变化局域性特点较为突出,没有贯穿整个研究时段的周期性波动,相对较为明显的周期性变化为15a;(5)蜻蛉河流域年径流量的变化存在比较显著的赫斯特现象,未来持续减少的概率较大。[结论]蜻蛉河流域水资源季节性分布不均,年际波动幅度大,未来一段时间内将继续维持减少趋势,需提前做好合理规划。
译  名:
Evolutions of Water Resources in Typical Basin of Central Yunnan Province Under Changing Environment
作  者:
DING Wenrong;College of Tourism and Geography Science,Yunnan Normal University;
关键词:
changing environment;;Central Yunnan Province;;water resource;;Qingling River
摘  要:
[Objective]A typical basin was taken as study area,we demonstrated the evolution of water resources in Central Yunnan Province,to supply scientific support for integrated water resources management.[Methods]Runoff data was collected in Qingling River basin of central Yunnan Province.Linear trend estimation,Mann-Kendall non parameter test,wavelet analysis method and R/Sanalysis were used.[Results](1)Runoff is extremely non-uniform at the annual scale,and concentrating on the summer and winter.(2)Since 1960 s,runoff of Qingling River basin showed a decreasing trend with a of 4.80×107 m3/10 a,but the trend not yet reached the significant level of 0.05.(3)The periodical evolution of runoff experienced"rich—lack—rich—lack"processes,in 2010,an abrupt change occurred.(4)From the aspect of multi-time scale variation,it was locally prominent but not over all covered.Comparatively a 15year-periodical variation was obvious.(5)A significant Hurst phenomenon existed for annual runoff of Qingling River basin,whereby the decrease probability in the future was great.[Conclusion]Water resources in Qingling River basin are unevenly distributed in seasonal and inter-annual time scale.A decrease trend will continue in the next period,hence rational planning is important.

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