基于Hydrus-1D模拟不同耕作方式对夏玉米农田水分的影响

丁超明; 吴鹏年; 岳玲; 梅福建; 关小康; 杨明达; 王艳丽; 李玉华; 王同朝

Cite this article:	丁超明,吴鹏年,岳玲,等.基于Hydrus-1D模拟不同耕作方式对夏玉米农田水分的影响[J].灌溉排水学报,0,():-.
	Dingchaoming,WUPENGNIAN,Yueling,et al.基于Hydrus-1D模拟不同耕作方式对夏玉米农田水分的影响[J].灌溉排水学报,0,():-.

【Print this page】【Download the full text in PDF】【查看/发表评论】【EndNote】【RefMan】【BibTex】

Archive Advanced Search

This article has been：Browse 2609Times Download 0Times
Font:+\|=\|-
DOI：

Effects of different tillage methods on field water of summer maize based on Hydrus-1D model
Dingchaoming¹, WUPENGNIAN¹, Yueling¹, Meifujian¹, Guanxiaokang¹, Yangmingda¹, Wangyanli¹, Liyuhua², Wangtongchao¹
1.Henan Agriculture university;2.College of Life Science, zhengzhou Normal University
Abstract:
【Objective】In order to study the effect of different tillage methods on the water transfer, regulate the distribution of water resources in farmland, and further provide a theoretical basis for perfecting the efficient farming mode of farmland water resources.【Method】The experiment was based on the long-term positioning test to set up continuous deep tillage, rotation tillage (2a no-till +1a deep-till), and consecutive no-till treatment, respectively. To determine soil moisture content, soil evaporation and model parameters in the seedling period, extraction period, grout period and maturity period of summer maize. Using the combination of Hydrus~1D model and measured value to simulated the law of farmland water balance and transport.【Result】Rotation tillage and no-till treatment could significantly improve soil water storage from maize extraction to grouting period, the difference of surface runoff among different tillage treatment was small, but the deep leakage volume of rotation and no-till treatment increases lightly, the evaporation of rotation and no-till treatment could be reduced by 12.84% and 5.07% respectively, the amount of transpiration increased by 15.15% and 19.44%, and the water absorption of the root system increased by 14.18% and 15.09% compared with deep tillage treatment.【Conclusion】The rotation treatment and no-till treatment could significantly improve the spatial distribution of farmland water, effectively delay the reduction of deep soil moisture according to rainfall, and improve soil water storage from summer maize extraction to grout period. The deep tillage and no-till treatment could improve the soil infiltration, promote the water absorption capacity of crop root system and increase the ratio of evapotranspiration to evaporation.
Key words: Tillage methods; Summer maize; Evaporation; Transpiration; Root water absorption;