水资源与水工程学报Issue(1)：219-225,7.DOI:10.11705/j.issn.1672-643X.2015.01.043
近30年甘肃省潜在蒸散发时空变化特征及演变归因的定量分析
Quantitative analysis of causes for temporal and spatial variation characteristics and evolution of potential evapotranspiration in Gansu Province during recent 30 years
摘要
Abstract
Evapotranspiration is an important part in the water and energy balance of earth's system.The research on the variation of potential evapotranspiration ( ETp ) is of great significance for a better under-standing of the impact of climate change on hydrological cycle and water resources allocation.Based on Penman-Monteith model recommended and revised by FAO,by use of meteorological data collected from 32 meteorological stations in or around Gansu,the paper analyzed the spatial and temporal variation char-acteristics of potential evapotranspiration in recent 30 years.Moreover,it analyzed the sensitivity of mete-orological factors to potential evapotranspiration and the spatial distribution of sensitive coefficient, and quantitatively reveal the dominant factor of ETp 's variation.The result can provide reference for studying the impact of climate change on hydrological cycle,improve agricultural irrigation efficiency,adjust utiliza-tion structure of water resources and optimizing the allocation of water resources in Gansu Province.关键词
潜在蒸散发/时空变化/气象因子/主导因子/敏感性/甘肃省Key words
potential evapotranspiration/temporal and spatial variation/meteorolgical factor/major fac-tor/sensitivity/Gansu Province分类
天文与地球科学引用本文复制引用
李耀军,魏霞,苏辉东..近30年甘肃省潜在蒸散发时空变化特征及演变归因的定量分析[J].水资源与水工程学报,2015,(1):219-225,7.基金项目
国家自然科学基金青年科学基金项目（41001154、51109103）；中国博士后科学基金项目（20110490862）；兰州大学中央高校基本科研业务费项目 （）
