气象与环境学报Issue(6)：87-94,8.DOI:10.3969/j.issn.1673-503X.2013.06.014
1961-2010年青海高原蒸发皿蒸发量变化及其对水资源的影响
Changes of pan evaporation and its impact on water resource in Qinghai plateau from 1961 to 2010
摘要
Abstract
Based on the meteorological data from 1961 to 2010 in Qinghai province,the spatial and temporal distri-butions and the trend of the pan evaporation were analyzed.The major climate factors affecting the pan evaporation were also studied by methods of a partial correlation and a principal component analysis.The results show that the pan evaporation is in a decreasing trend in the recent 50 years in Qinghai plateau,which is caused by thermody-namic,water and dynamic factors together.Among three factors,the dynamic and water factors have greater impact on the pan evaporation than thermodynamic factor.Regional analysis suggests that the major factors influencing pan evaporation are wind speed and relative humidity in the eastern agricultural areas and Qaidam Basin and rela-tive humidity in three rivers source areas respectively,while the main impacting factor is diurnal temperature range in Tangula mountain areas.It is negative correlation between evapotranspiration and surface water resource by ana-lyzing both relationships.Summer evapotranspiration has a significant effect on the mean flow,while the response of mean autumn flow to evapotranspiration is the most sensitive.关键词
潜在蒸散量/平均流量/Mann-kendall 检验Key words
Potential evapotranspiration/Mean flow/Mann-Kendall test分类
天文与地球科学引用本文复制引用
申红艳,马明亮,汪青春,王振宇,李江英..1961-2010年青海高原蒸发皿蒸发量变化及其对水资源的影响[J].气象与环境学报,2013,(6):87-94,8.基金项目
公益性气象行业科研专项（GYHY201106013）资助。 （）
