水利学报Issue(6)：678-686,9.DOI:10.13243/j.cnki.slxb.20141402
应用双作物系数模型估算温室番茄耗水量
Application of the dual crop coefficient model for estimating tomato evapotranspiration in greenhouse
摘要
Abstract
An accurate estimation evapotranspiration (ETc) is critical for precise water resource management and reasonable irrigation scheduling. In this study, the dual crop coefficient model, SIMDualKc, was vali⁃dated and verified to estimate ETc of tomato based on 3-season data calculated by water balance method in a greenhouse in Northwest China. Results show good agreement between observed and estimated ETc throughout the season. The estimation errors were small with average root mean square error of 0.55 mm·d-1 and mean absolute error of 0.44 mm·d-1. The value 0.50, 0.85 and 0.55 were obtained for, respectively, the initial, mid-season and late basal crop coefficients. The evaporation (E) was highest with 22.8 % of ETc during the initial stage and lowest with 3.2 % of ETc during crop development stage. The average sea⁃sonal E accounted for 5.9 % of ETc for all three seasons, indicating transpiration was the dominant compo⁃nent of ETc of tomato grown in greenhouse over the full crop season.关键词
SIMDualKc/耗水/作物系数/温室/番茄Key words
SIMDualKc/evapotranspiration/crop coefficient/greenhouse/tomato分类
农业科技引用本文复制引用
邱让建,杜太生,陈任强..应用双作物系数模型估算温室番茄耗水量[J].水利学报,2015,(6):678-686,9.基金项目
国家自然科学基金项目（51321001，51222905）；国家高技术研究发展计划（863计划）课题（2011AA100502）；水利部公益项目（201001061）；南京信息工程大学人才启动经费 （）
