灌溉排水学报2012，Vol.31Issue(2)：124-126,3.
不同棉田暗管布置方式对氮素流失影响的模拟分析
Simulation Analysis of Cotton Fields Nitrate-nitrogen Loss under Different Underground Pipe Layout
曾文治 1黄介生 1吴谋松 1徐驰1
作者信息
- 1. 武汉大学水资源与水电工程科学国家重点实验室,武汉430072
- 折叠
摘要
Abstract
For studying rules of nitrate-nitrogen loss in controlled pipe drainage under different underground pipe layout in cotton fields,we combined the controlled drainage experiment during 2007—2009 in Yajiao,Jingzhou,Hubei Province and used DRAINMOD model to simulate the designed experiment schemes.The results showed that both exit water depth and space of underground pipe have very significant impact for the nitrate-nitrogen loss in underground pipe drainage;therefore,these two factors play important roles in the design of farmland controlled drainage systems.To be more specific,the amount of pipe nitrate-nitrogen loss may decrease by reducing the exit water depth and increasing the space of the underground drainage pipe.In this condition,based on the requirements of local environment and crop,we can modify the exit water depth and the space of underground drainage pipe to pursue the uniform of the high crop yield and environmental protection.关键词
控制排水/暗管布置/硝态氮流失量/DRAINMOD模型Key words
controlled drainage/pipe layout/nitrate-nitrogen loss/DRAINMOD model分类
农业科技引用本文复制引用
曾文治,黄介生,吴谋松,徐驰..不同棉田暗管布置方式对氮素流失影响的模拟分析[J].灌溉排水学报,2012,31(2):124-126,3.
