论文部分内容阅读
平原河网地区受其土质以及降雨特点的影响,干旱与涝渍灾害交替出现,以前单一的排水系统设计标准难以满足排涝抗旱的目标。本文利用DRAINMOD模型,模拟分析不同排水系统设计方案对提高作物产量的影响。结果显示,在考虑作物产量最大化的目标下,研究区农田排水系统布置宜采用排水暗管浅密的布置方案,且排水暗管布置间距12~15m之间,埋深以不超过1.2m为宜。本研究成果可为当地排水系统改造和设计提供科学理论依据。
The plains river network affected by its soil quality and rainfall characteristics, drought and waterlogging disaster alternately, the previous single drainage system design standards is difficult to meet the drainage droughts and drought goals. In this paper, DRAINMOD model is used to simulate and analyze the effect of different drainage system design schemes on increasing crop yield. The results show that under the goal of maximizing the crop yield, the layout of the drainage system should be adopted in the study area. The arrangement of the drainage pipes should be 12 ~ 15m, the depth should not exceed 1.2m should. The results of this research can provide a scientific basis for the reconstruction and design of local drainage systems.