Climate Change and Its Effect on Annual Runoff in Lijiang Basin-Mt. Yulong Region,China  

作　　者：何元庆 蒲焘 李宗省 朱国锋 王世金 张宁宁 王淑新 辛惠娟 Wilfred H Theakstone 杜建括 

机构地区：[1]State Key Laboratory of Cryospheric Sciences,Yulong Snow Mountain Glacial and Environmental Observation Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences [2]Institute of Environment and Climate Change Research in Western China,Lanzhou University [3]Graduate University of Chinese Academy of Sciences [4]School of Environment and Development,University of Manchester

出　　处：《Journal of Earth Science》2010年第2期137-147,共11页地球科学学刊（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.40971019);the West Light Foundation of Chinese Academy of Sciences (No.O828A11001);the National Basic Research Program of China (No.2007CB411501);the Special Grant for Postgraduate Research,Innovation and Practice;the Major Directionality Program of the Chinese Academy of Sciences (No.KZCX-YW-317);the Fund from the State Key Laboratory of Cryospheric Sciences;the Fund from Lijiang City Government

摘　　要：Based on the meteorological and hydrologic data in the Lijang （丽江） basin from 1979 to 2006, variational trend and characteristics of climate change and its effect on runoff in Yanggong （漾弓） River were examined in the study. The results show that the temperature have significantly increased in the drainage basin during the past 28 years. The average temperature increased markedly from 1979 to 2006, and the increase of temperature in winter was higher than those in other seasons. The annual precipitation varied with a slightly upward trend in the same period, suggesting that the increase mainly occurred in spring and summer while the decrease occurred in autumn and winter. The streamflow at Yanggong River showed a significant increasing trend. During the four seasons, spring experienced the most significant increase, and autumn experienced the smallest. On the basis of the above study, we found that the increasing trend in runoff was more significant than the increase in precipitation in the study area. That was the synactic results of variation of groundwater, ice-snow meltwater and precipitation caused by global climate change.Based on the meteorological and hydrologic data in the Lijang （丽江） basin from 1979 to 2006, variational trend and characteristics of climate change and its effect on runoff in Yanggong （漾弓） River were examined in the study. The results show that the temperature have significantly increased in the drainage basin during the past 28 years. The average temperature increased markedly from 1979 to 2006, and the increase of temperature in winter was higher than those in other seasons. The annual precipitation varied with a slightly upward trend in the same period, suggesting that the increase mainly occurred in spring and summer while the decrease occurred in autumn and winter. The streamflow at Yanggong River showed a significant increasing trend. During the four seasons, spring experienced the most significant increase, and autumn experienced the smallest. On the basis of the above study, we found that the increasing trend in runoff was more significant than the increase in precipitation in the study area. That was the synactic results of variation of groundwater, ice-snow meltwater and precipitation caused by global climate change.

关 键 词：temperate glacier climate change annual runoff Lijiang basin. 

分 类 号：P333[天文地球—水文科学] P467[水利工程—水文学及水资源]