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Validation of the effect of DSSAT model on winter wheat under conservation tillage treatments in west Henan
Authors
Vinay Nangia
姚宇卿
+5 more
王飞
穆兴民
隋艳艳
高鹏
鲁向晖
Publication date
1 January 2010
Publisher
Abstract
简要介绍了美国乔治亚大学组织开发的DSSATV4.5模型,并利用洛阳市孟津县2005~2006年冬小麦田间试验结果对模型的模拟结果进行验证及其适用性分析。通过对冬小麦叶面积指数、产量和农田土壤水分、水分利用效率的模拟与实测结果的对比分析,认为DSSAT模型的模拟效果较好。分析结果表明:模型对叶面积指数的模拟误差RMSE在0.034~0.076之间;模拟各处理的产量与水分利用效率也与实测值的关系基本一致;对各处理土壤体积含水量的RMSE误差在0.051~0.151之间。研究结果认为DSSAT模型在豫西应用的适宜性较好,可为该地区研究保护性耕作对冬小麦生长及土壤水分的影响提供理论支持
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018