| 阿克苏河流域径流补给及径流变化特征分析 |
| |
| 引用本文： | 蒋艳,周成虎,程维明.阿克苏河流域径流补给及径流变化特征分析[J].自然资源学报,2005,20(1):27-34. |
| |
| 作者姓名： | 蒋艳 周成虎 程维明 |
| |
| 作者单位： | 中国科学院地理科学与资源研究所, 资源与环境信息系统国家重点实验室, 北京 100101 |
| |
| 摘 要： | 选取阿克苏河流域内代表站的径流实测资料,分析流域范围内不同径流补给来源的径流年内分配规律和多年变化特征。阿克苏河流域径流补给具有垂直地带性和多样化特点,径流时序特征与径流的补给来源有密切关系;径流年内分配极不均匀,集中程度高;而径流的多年变化变差系数小,径流量多年变化比较稳定;运用小波分析方法,对年径流时间序列进行多尺度变换,结果表明山区河流自1990年后进入丰水期。近年来,流域内降水和气温均呈上升趋势,冰川融)量增加,以冰)融水补给阿克苏河流域山区径流量显著增加,气温升高对径流量的影响高于降水量增加的影响。
|
| 关 键 词： | 水资源 径流补给来源 集中度 集中期 峰型度 年丰枯率 小波分析 |
| 文章编号： | 1000-3037(2005)01-0027-08 |
| 收稿时间： | 2004-08-23 |
| 修稿时间： | 2004年8月23日 |
Analysis on Runoff Supply and Variation Characteristics of Aksu Drainage Basin |
| |
| JIANG Yan,ZHOU Cheng-hu,CHENG Wei-ming.Analysis on Runoff Supply and Variation Characteristics of Aksu Drainage Basin[J].Journal of Natural Resources,2005,20(1):27-34. |
| |
| Authors: | JIANG Yan ZHOU Cheng-hu CHENG Wei-ming |
| |
| Affiliation: | State Key Laboratory of Resource and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China |
| |
| Abstract: | Aksu River is the main tributary of the Tarim River,and its upper reaches are in the territory of Kirghizstan.According to gauging discharge of five representative hydrologic stations,this paper uses several statistical parameters to analyze both intra-annual distribution law and variation characteristics over years of different supply sources runoff.The result shows that the runoff supply of Aksu basin has the characteristics of zonal perpendicularity and diversification.The characteristics of annual discharge have close relationship with different runoff supply sources.On the one hand,intra-annual distribution of runoff is extremely uneven with high concentration degree,while on the other,the variation coefficient over years charge little with relative stable runoff volume changes.This paper applies the theory and method of wavelet analysis to perform multi-scale transformation of the annual runoff time sequence.The result reveals the annual discharge increase since 1990 in mountain area.The analysis of the influen-cing factors of precipitation and temperature indicated that the rise of temperature has greater influence on runoff increase than that of precipitation. |
| |
| Keywords: | water resources source of runoff concentration degree concentration period peak style value annual wet-dry rate wavelet analysis Aksu |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《自然资源学报》浏览原始摘要信息 |
|
点击此处可从《自然资源学报》下载全文 |
|
