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| 清涧河流域近50年径流时间变化特征及趋势分析 | |
| 引用本文： | 王计平,赵梅,程复,姜磊,王然. 清涧河流域近50年径流时间变化特征及趋势分析[J]. 中国水土保持科学, 2011, 9(5): 54-59 |
| 作者姓名： | 王计平 赵梅 程复 姜磊 王然 |
| 作者单位： | 1. 中国林业科学研究院森林生态环境与保护研究所 100091 北京 2. 黄河水利委员会中游水文水资源局 030600 山西晋中 3. 北京水保生态工程咨询有限公司 100055 北京 4. 北京林业大学林学院 100083 北京 5. 国家卫星海洋应用中心 100081 北京 |
| 基金项目： | 林业公益性行业科研专项“黄土高原生态恢复对径流泥沙影响评价技术研究”(201004058); 中国博士后科学基金“黄河中游植被恢复格局对流域径流泥沙的影响”(20100480365) |
| 摘 要： | 采用清涧河延川水文站近50年径流序列资料,运用不均匀系数、调节系数、集中度(期)、变差系数和极值比等指标分析径流时变特征,应用Mann-Kendall趋势分析法检验流域径流变化趋势。结果表明:1)清涧河流域径流的年内分配曲线呈现出单峰曲线,径流主要集中于7—9月份,约占全年平均径流量58%;2)1990以来,年内分配不均匀性和集中程度趋于减小;3)2000—2009年流域径流年际变异最大,且在不同时段径流年际变异差异较大;流域年径流量呈现明显下降趋势,20世纪80年代是流域径流丰枯转折点,并在2000年后进入严重枯水期。清涧河流域径流演变呈现出明显的不均匀性、阶段性和趋势性,这种变化与降水和植被恢复导致下垫面特征改变有关。 |
| 关 键 词： | 土地利用动态变化 降水 不均匀性 趋势 清涧河流域 |
Temporal variations and trend analysis of runoff in Qingjianhe River in Yellow River midstream area in the past 50 years |
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| Wang Jiping,Zhao Mei,Cheng Fu,Jiang Lei,Wang Ran. Temporal variations and trend analysis of runoff in Qingjianhe River in Yellow River midstream area in the past 50 years[J]. Science of Soil and Water Conservation, 2011, 9(5): 54-59 | |
| Authors: | Wang Jiping Zhao Mei Cheng Fu Jiang Lei Wang Ran |
| Affiliation: | Wang Jiping1,Zhao Mei2,Cheng Fu3,Jiang Lei4,Wang Ran5(1.Research Institute of Forest Ecology,Environment and Protection,the Chinese Academy of Forestry,100091,Beijing,2.Bureau of Hydrology and Water Resources of the Middle Yellow River,Yellow River Water Conservancy Committee,030600,Jinzhong,Shanxi,3.Beijing Water-soil Conservation and Eco-engineering Consultation Co.,Ltd,100055,4.College of Forestry,Beijing Forestry University,100083,5.National Satellite Ocean Application Service,100081,... |
| Abstract: | Based on the data set of runoff of the Yanchuan Hydrological Station,Qingjianhe River,in the past 50 years,annual unevenly distribution coefficient of runoff,complete accommodation coefficient,concentrative degree(concentrative period),variation coefficient and runoff extremum ratio of the station were calculated and analyzed,which indicated the annual and interannual variations of runoff.The long-term variation tendency of the runoff in the Qingjianhe River Basin was verified by the tendency analysis metho... |
| Keywords: | land-use dynamic change rainfall nonuniformity tendency Qingjianhe River Basin |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |