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| 基于概念模型的棉田土壤水分变化模拟研究 | |
| 引用本文： | 王仰仁,李松敏,孙新忠,解爱国,金建华.基于概念模型的棉田土壤水分变化模拟研究[J].节水灌溉,2010(3). |
| 作者姓名： | 王仰仁 李松敏 孙新忠 解爱国 金建华 |
| 作者单位： | 1. 天津农学院水利工程系,天津,300384 2. 山西省运城市水利科学研究所,山西,运城,030014 3. 山西水利职业技术学院,山西,运城,030014 |
| 基金项目： | 国家自然科学基金资助项目(50679055)“水分胁迫对冬小麦光合产物分配影响的模拟研究” |
| 摘 要： | 农田土壤水分模拟是农业用水管理的重要依据。以根系层土体水量平衡方程为依据,考虑根系层下界面水分通量,构建了农田土壤水分变化模拟模型,该模型由作物蒸发蒸腾量模型、根区下界面水分通量模型以及水量平衡方程等组成。依据山西水利职业技术学院试验基地2006-2008年3年棉花试验资料,确定了模型参数。结果表明,土壤储水量模拟计算值与实测值有较好的一致性,其相关系数达到0.928 7,F检验结果(F=96.44F0.001=3.27)达到高度显著水平,所建立的土壤水分变化模拟模型可用于棉花田间土壤水分的模拟计算,计算精度平均达到5.3%~15.8%;模型较好地反映了农田土壤水分转化过程以及降水、蒸发和深层土壤水分对作物蒸发蒸腾及产量的影响。 |
| 关 键 词： | 土壤水分 蒸发蒸腾 水分通量 根区 棉花 |
Simulation of Dynamic Change of Soil Moisture in Cotton Field Based on Conceptual Model |
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| WANG Yang-ren,LI Song-min,SUN Xin-zhong,XIE Ai-guo,JIN Jian-hua.Simulation of Dynamic Change of Soil Moisture in Cotton Field Based on Conceptual Model[J].Water Saving Irrigation,2010(3). | |
| Authors: | WANG Yang-ren LI Song-min SUN Xin-zhong XIE Ai-guo JIN Jian-hua |
| Institution: | 1.Department of Water Conservancy Engineering/a>;Tianjin Agricultural University/a>;Tianjin/a>;300384/a>;2.Shanxi Technical College of Water Conservancy/a>;Yuncheng 030014/a>;Shanxi Province/a>;3.Yuncheng Water Conservancy Research Institute of Shanxi Province/a>;Shanxi Province |
| Abstract: | Simulation of soil moisture in farmland is the important basis of agricultural water management.Based on the water balance equation of root zone,taking the lower boundary water flux of root zone into account,a farmland soil moisture simulation model was set up in this paper.It contains crop evapotranspiration model,lower boundary water flux model and water balance equation.The parameters of the model were fixed based on the observation data of soil moisture during the growing season of cotton in irrigation ... |
| Keywords: | soil moisture evapotranspiration water flux root zone cotton |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |