水资源与水工程学报2017，Vol.28Issue(5)：37-42,6.DOI:10.11705/j.issn.1672-643X.2017.05.06
长武塬区实际蒸散发变化及驱动因素分析
Study on the variation regulation and influencing factors of farmland evapotranspiration in Gully region of Changwu tableland
摘要
Abstract
The study analyzed the variation characteristics of farmland evapotranspirationin Changwu ta-bleland from four scales:yearly,monthly, daily and growing seasonbased on observation datafrom large scale lysimeter system and explore the influencing factors by using correlation analysis and principal com -ponent analysis method.The quantitative relationship between measured evapotranspiration and influen-cing factors is established.The results show that the variation characteristics of farmland evapotranspira-tion are consistent with the growth process of the crops and the high evapotranspiration occurs in the booming period.The evapotranspiration is affected by precipitation, air temperature, wind speed, solar radiation,sunshine hours,air relative humidity and soil water content.Temperature and solar radiation are the main driving factors of evapotranspiration.关键词
农田蒸散量/变化特征/驱动因素/相关性/长武塬区Key words
farmland evapotranspiration/the variation characteristics/driving factor/relevance/Chang-wu tableland分类
建筑与水利引用本文复制引用
吴辰,王国庆,郝振纯,谷一,刘佩瑶,杨勤丽..长武塬区实际蒸散发变化及驱动因素分析[J].水资源与水工程学报,2017,28(5):37-42,6.基金项目
国家重点研发计划项目(2016YFA0601501、2016YFA0601601、2016YFC0402704) （2016YFA0601501、2016YFA0601601、2016YFC0402704）
国家自然科学基金项目(41330854、41371063、41401026、41371047) （41330854、41371063、41401026、41371047）
水文水资源与水利工程科学国家重点实验室专项经费(1069-514031112、2015490811) （1069-514031112、2015490811）
