水资源与水工程学报Issue(3)：226-229,4.DOI:10.11705/j.issn.1672-643X.2014.03.46
分布式双源蒸散发模型及其在南广河流域运用研究
Study on application of distributed dual-source evapotranspiration model in Nanguang River basin
蔡琳 1柳志亮1
作者信息
- 1. 四川省水利水电勘测设计研究院，四川德阳618000
- 折叠
摘要
Abstract
In view of the evapotranspiration model which is based on traditional single-point calculations and can't consider the effect of watershed surface conditions on evapotranspiration ,the paper used satellite remote sensing data and took Nanguang River basin in Sichuan basin as the research object so as to build distributed dual-source evapotranspiration model based on a grid unit .The model realized the calculation of whole process of evapotranspiration time and space in research area .The results show that the calculat-ed value and measured value of evapotranspiration based on the site area of remote sensing data source have better consistency and relevance ,the correlation coefficient is 0 .744 .Under similar weather and sur-face conditions , the sequence of evapotranspiration capacity:forest land >shrubbery>paddy field>dry land >grassland .The result can provide certain reference value for the space calculation of evapotranspi -ration in the watershed as well as quantitative analysis of effect of land use change on watershed evapo -transpiration .关键词
遥感数据源/蒸散发时空计算/双源蒸散发模型/南广河流域Key words
source remote sensing data/temporal and spatial calculation of evapotranspiration/dual-source evapotranspiration model/Nanguang River basin分类
天文与地球科学引用本文复制引用
蔡琳,柳志亮..分布式双源蒸散发模型及其在南广河流域运用研究[J].水资源与水工程学报,2014,(3):226-229,4.
