首页 | 本学科首页   官方微博 | 高级检索  
     检索      

近50 a以来青海省水资源变化趋势分析
引用本文:周陈超,贾绍凤,燕华云,杨贵林.近50 a以来青海省水资源变化趋势分析[J].冰川冻土,2005,27(3):432-437.
作者姓名:周陈超  贾绍凤  燕华云  杨贵林
作者单位:1. 中国科学院,地理科学与资源研究所陆地水循环及地表过程重点实验室,北京,100101
2. 青海省水文水资源勘探局,青海,西宁,810001
基金项目:引进国际先进农业科技计划(948计划) , 中国科学院知识创新工程项目
摘    要:选取三江源区主要代表站1956 -2000年的年径流量与年降雨量资料, 分析青海省三江源区水资源变化趋势. 结果表明: 青海省三江源区近45 a来水资源变化趋势不明显. 为了从更广的区域说明问题, 对内陆河区青海湖、柴达木盆地的主要代表站1956 -2000年的年径流量与年降雨量资料进行了分析, 发现除了香日德河年径流量呈现比较明显的增加趋势之外, 其它各站的年径流变化趋势均不明显, 与三江源区具有相似的变化特征.

关 键 词:径流量  趋势分析  水资源  青海  三江源  青海省  区水资源  变化趋势分析  Qinghai  Province  Water  Resources  变化特征  相似  径流变化趋势  比较  发现  木盆地  青海湖  内陆河  问题  区域  结果  三江源区  雨量资料  年径流量  代表站
文章编号:1000-0240(2005)03-0432-06
修稿时间:2004年11月19日

Changing Trend of Water Resources in Qinghai Province from 1956 to 2000
ZHOU Chen-chao,JIA Shao-feng,YAN Hua-yun,YANG Gui-lin.Changing Trend of Water Resources in Qinghai Province from 1956 to 2000[J].Journal of Glaciology and Geocryology,2005,27(3):432-437.
Authors:ZHOU Chen-chao  JIA Shao-feng  YAN Hua-yun  YANG Gui-lin
Abstract:In this paper the changing trend of water resources in Qinghai Province is studied. The main representative stations in the head area of the three big rivers (Yangtze River, Yellow River, and Lancang River) are selected. Mann-Kendall and Lineal-Correlation methods are applied to analyze the changing trends of hydrologic components. By use of the yearly series of natural runoff and precipitation data acquired from the representative stations (1956 _2000), it is found that the changing trend of water resources in the head area of the three rivers is different from what achieved before. The results calculated by the two significance test methods are both below the standard value, which confirm the changing trend of water resources in Qinghai Province is not obvious. The water resources did not show an obvious variation trend in the past 45 years; however, it is found that the natural runoff has decreased since 1990. The water shortage in the 1990 had taken some bad influence to Qinghai s environment. At the same time, in order to explain the argument from more expansive area in Qinghai Province, three stations are selected from the areas of internal drainages to analyze. From the analysis, the same result is achieved as what achieved from the previous stations, except for Xiangride station. Of the variation of water resources in the areas of internal drainages, also no any obvious changing trend can be seen. But in Xiangride Station, it is found that both precipitation and natural runoff are obviously increasing.
Keywords:runoff  trend analysis  water resources  Qinghai Province  headwater of three big rivers
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号