|
|||||
|
|
| 黄河源区水资源变化及其影响因子 | |
| 引用本文： | 常国刚,李林,朱西德,王振宇,肖建设,李凤霞.黄河源区水资源变化及其影响因子[J].地理学报(英文版),2007,17(2):131-140. |
| 作者姓名： | 常国刚 李林 朱西德 王振宇 肖建设 李凤霞 |
| 作者单位： | [1]Qinghai Meteorological Bureau, Xining 810001, China [2]Qinghai Climate Center, Xining 810001, China [3]Qinghai Institute of Meteorological Sciences, Xining 810001, China |
| 基金项目： | National Natural Science Foundation of China, No.40405022; Special Fund for Social Public Welfare of Research Institutes, No.2005DIB3J109 |
| 摘 要： | Taking the source region of the Yellow River as a study area and based on the data from Madoi Meteorological Station and Huangheyan Hydrological Station covering the period 1955-2005, this paper analyses the changing trends of surface water resources, climate and frozen ground and reveals their causes. Results show that there exist frequent fluctuations from high to low water flow in the 51-year period. In general, the discharge has shown a de- clining trend in the 51 years especially since the 1990s. The annual distribution shows one peak which, year on year is getting smaller. （1） Precipitation has a significant and sustained influence on discharge. （2） A sharp rise of temperature resulted in the increase of evaporation and the decrease of discharge, which has a greater effect than on ice-snow melting. （3） Frozen ground tends to be degraded markedly. There is a significant positive correlation be- tween the permafrost thickness and the discharge. （4） Evaporation rates are significantly increasing, leading to the decrease of discharge. 70% of the discharge reduction resulted from climate change, and the remaining 30% may have been caused by human activities. |
| 关 键 词： | 黄河 河源区 地表水资源 气候变化 冻土 |
| 收稿时间： | 25 January 2007 |
| 修稿时间： | 2007-01-252007-03-10 |
Influencing factors of water resources in the source region of the Yellow River |
|
| Chang?Guogang,Li?Lin,Zhu?Xide,Wang?Zhenyu,Xiao?Jianshe,Li?Fengxia.Influencing factors of water resources in the source region of the Yellow River[J].Journal of Geographical Sciences,2007,17(2):131-140. | |
| Authors: | Chang Guogang Li Lin Zhu Xide Wang Zhenyu Xiao Jianshe Li Fengxia |
| Institution: | 1. Qinghai Meteorological Bureau, Xining 810001, China 2. Qinghai Climate Center, Xining 810001, China 3. Qinghai Institute of Meteorological Sciences, Xining 810001, China |
| Abstract: | Taking the source region of the Yellow River as a study area and based on the data from Madoi Meteorological Station and Huangheyan Hydrological Station covering the period 1955–2005, this paper analyses the changing trends of surface water resources, climate and frozen ground and reveals their causes. Results show that there exist frequent fluctuations from high to low water flow in the 51-year period. In general, the discharge has shown a declining trend in the 51 years especially since the 1990s. The annual distribution shows one peak which, year on year is getting smaller. (1) Precipitation has a significant and sustained influence on discharge. (2) A sharp rise of temperature resulted in the increase of evaporation and the decrease of discharge, which has a greater effect than on ice-snow melting. (3) Frozen ground tends to be degraded markedly. There is a significant positive correlation between the permafrost thickness and the discharge. (4) Evaporation rates are significantly increasing, leading to the decrease of discharge. 70% of the discharge reduction resulted from climate change, and the remaining 30% may have been caused by human activities. Foundation: National Natural Science Foundation of China, No.40405022; Special Fund for Social Public Welfare of Research Institutes, No.2005DIB3J109 Author: Chang Guogang (1962–), Senior Engineer, specialized in climate change and its impact on eco-environment. |
| Keywords: | surface water resources climate change frozen ground the source region of the Yellow River |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |
| 点击此处可从《地理学报(英文版)》浏览原始摘要信息 | |
| 点击此处可从《地理学报(英文版)》下载免费的PDF全文 | |