Soil Moisture Diffusion and Pipe Layout Type of Water-Saving Irrigation

Water Saving Irrigation ›› 2019 ›› (10) : 55-59.

Soil Moisture Diffusion and Pipe Layout Type of Water-Saving Irrigation

Author information +
History +

Abstract

Based on the theory of water transport in saturated-unsaturated zone, simulating the movement process, infiltration range and water demand of soil moisture under different irrigation modes in Saixi Irrigation District, analyzing the state of water movement under different irrigation conditions, and evaluating the effect and economy of water-saving irrigation. The results show that under the same irrigation effect, the water consumption of water-saving irrigation is significantly less than that of free flooding. According to the water requirement of wheat growth cycle, putting forward a value of water-saving irrigation flux is 0.375 cm3/h and a depth range of underground piping with the tube layout distance of 100 cm under this flux value is 50-60 cm, and water-saving irrigation has great economic performance. The simulation results of moisture diffusion can provide theoretical basis for water-saving irrigation in irrigation area.

Key words

free flooding / water-saving irrigation / moisture diffusion / pipe layout type

Cite this article

Download Citations
. Soil Moisture Diffusion and Pipe Layout Type of Water-Saving Irrigation. Water Saving Irrigation. 2019, 0(10): 55-59

References

[1] 张珂萌, 牛文全, 薛万来, 等. 间歇和连续灌溉土壤水分运动的模拟研究[J]. 灌溉排水学报, 2015,34(3): 11-16.

[2] 池宝亮, 黄学芳, 张冬梅, 等. 点源地下滴灌水分运动数值模拟及验证[J]. 农业工程学报, 2005,21(3):56-59.

[3] 李久生, 张建君, 饶敏杰. 滴灌施肥灌溉的水氮运移数学模拟及试验验证[J]. 水利学报, 2005,36(8):932-938.

[4] 王建东, 龚时宏, 马晓鹏, 等. 地下滴灌条件下水热运移数学模型与验证[J]. 水利学报, 2010,41(3):368-378.

[5] 汤英, 徐利岗, 张红玲, 等. HYDRUS-1D/2D在土 壤水分入渗过程模拟中的应用[J].安徽农业科学,2011,39(36):22390-22393.

[6] 马军花, 任理. 考虑水力学和矿化参数空间变异下土壤水氮运移的数值分析[J].水利学报,2005,36(9):1-12.

[7]Simunek J, van Genuchten M Th. The HYDRUS Software Package for Simulating the Two- and Three-Dimensional Movement of Water, Heat, and Multiple Solutes in Variably-Saturated Media. (Version 2.0)[M]. California: Colorado School of Mines Publishers, 2007.

[8] Roberts T, Lazarovitch N, Warrick A W, et al. Modeling salt accumulation with subsurface drip irrigation using HYDRUS-2D[J]. Soil Science Society of America, 2009, 73(1):233-240.

[9] Crevoisier D, Popova Z. Assessment and simulation of water and nitrogen transfer under furrow irrigation[J]. Agricultural Water Management, 2008, 95:354-356.

[10] Wissmeier L, Barry D A. Reactive transport in unsaturated soil: Comprehensive modeling of the dynamic spatial and temporal mass balance of water and chemical components[J]. Science Direct Advances in Water Resources, 2008, 31: 858-875.

[11] 李志新, 许迪, 李益农, 等. 畦灌施肥地表水流与非饱和土壤水流-溶质运移集成模拟:Ⅰ模型[J].水利学报, 2009, 40(6):673-687.

[12] 余根坚, 黄介生, 高占义. 基于HYDRUS模型不同灌水模式下土壤水盐运移模拟[J].水利学报,2013,44(7):826-834.

[13] Forkutsa I, Sommer Rolf, Shirokova Y I, et al. Modeling irrigation cotton with shallow groundwater in the Aral Sea Basin of Uzbekistan: I. Water dynamics[J]. Irrig Sci, 2009, 27(4): 331-346.

[14] 张玉坚.旱区农田土壤水分运动模拟研究[D].南京: 南京水利科学研究院, 2017.

[15] 左强, 王东, 罗长寿. 反求根系吸水速率方法的检验与应用[J].农业工程学报, 2003, 19(2):28-33.

166

Accesses

0

Citation

Detail

Sections
Recommended

/