灌溉排水学报2011，Vol.30Issue(5)：12-16,5.
气象因子的变化对参考作物蒸发蒸腾量的影响
The Impact of Change of Climate Factors on the Reference Evapotranspiration in Dongjiang River Basin
摘要
Abstract
Based on the monthly historical climate dataset from 1961—2005 of Dongjiang River Basin,the impact of change of climatic factors on reference evapotranspiration（ET0） are analyzed using average impact advanced this article and numeral experimentation absenting climatic factors.Results showed that the average impact of sunlight radiation was the most,followed by relative humidity,air temperature and wind speed.The average impact of sunlight radiation was much larger than that of air temperature and relative humidity in summer.Though the average impact of sunlight radiation was the most,the difference with that of air temperature and relative humidity decrease in winter.The effect estimating ET0 with relative climatic factors and relative sensitivity coefficients was better in summer than in winter.The effect estimating ET0 weakens with decrease of the number of climatic factors,it slightly weakens in Summer,strongly weakens in Winter and Spring.The main climatic factor that impact on reference evapotranspiration is sunlight radiation in Summer,that is sunlight radiation,relative humidity.关键词
参考作物蒸发蒸腾量/敏感系数/气象因子/东江流域Key words
reference evapotranspiration/sensitivity coefficient/climate factors/Dongjiang River Basin分类
农业科技引用本文复制引用
谢平,陈晓宏,王兆礼,钟来元..气象因子的变化对参考作物蒸发蒸腾量的影响[J].灌溉排水学报,2011,30(5):12-16,5.基金项目
国家自然科学基金重点项目(50839005) （50839005）
广东海洋大学博士启动基金项目(0912257) （0912257）
