干旱区生态环境知识资源中心(Arid): 不同滴灌水温在灰漠土中水热耦合模拟与验证

Arid

	不同滴灌水温在灰漠土中水热耦合模拟与验证
其他题名	Simulation and Validation of Coupled Water - heat Transfer in the Grey Dessert Soil in Different Water Temperatures during Surface Drip Irrigation
	吉恒莹 1; 李磐 2; 付彦博 2; 冯耀祖 2
来源期刊	新疆农业科学
ISSN	1001-4330
出版年	2018
卷号	55 期号:2 页码:319-327
中文摘要	【目的】滴灌条件下不同灌溉水水热状况对土壤水热状况的影响规律,根据土壤水、热运动基本方程,建立了地表滴灌水、热运移数学模型。【方法】采用正交试验设计,设计不同滴灌水温水平及其组合,共计40个试验处理。利用HYDRUS - 1D软件建立的数学模型进行了数值求解,与实测数据结果进行验证。【结果】建立新疆灰漠土土壤含水量与压力水头的模拟方程( 1 ) Q( h) = 0.063 8 + 0.328 9 * [ 1 +( 0.007 7 h)1.559 7 ] -0.358 9,确定土壤的水力学参数和热特性参数。【结论】利用该数学模型对地表滴灌条件下作物生长所需的土壤水、热环境条件模拟预测。从模型的数值模拟值和实测结果对比验证显示,地表滴灌条件下低水温( 10℃)和高水温( 30℃)对土壤表层影响比较大,而且在早春增加一定的灌水温度,有利于作物苗期的生长。
英文摘要	【Objective】This project aims to study the influence of water and heat conditions of different irrigation water on soil water and heat conditions under drip irrigation conditions so as to establish the mathematical model of water and heat transfer of surface drip irrigation according to the fundamental equations of water thermal motion of soil.【Method】Orthogonal experiments were conducted to design different drip irrigation water temperature levels and their combinations,40 treatments in total. The mathematical model set with HYDRUS - 1D software was applied to solve the numerical results,which were compared with the indoor measured data.【Result】The simulation equations of soil moisture content and pressure head of Xinjiang gray desert soil were established: ( 1 ) Q( h) = 0.063 8 + 0.328 9 * [ 1 + ( 0.007 7 h) 1.559 7 ] -0.358 9,Soil hydraulic parameters and thermal characteristic parameters were determined.【Conclusion 】The soil water and thermal environment conditions for crop growth under the surface drip irrigation condition can be predicted with this mathematical model. In addition,both numerical simulation values and measured results indicate that low ( 10 ℃) and high ( 30 ℃) water temperature have great influences on soil surface under surface drip irrigation condition,and a certain increase of irrigation water temperature in early spring is beneficial to the growth of crops in the seedling stage.
中文关键词	灰漠土 ; 水热耦合 ; 滴灌 ; 模型 ; 温度
英文关键词	gray desert soil hydrothermal coupling drip irrigation models temperature
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:6226095
来源机构	新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238526
作者单位	1.新疆师范大学, 乌鲁木齐, 新疆 830054, 中国; 2.新疆农业科学院土壤肥料与农业节水研究所, 乌鲁木齐, 新疆 830091, 中国
推荐引用方式 GB/T 7714	吉恒莹,李磐,付彦博,等. 不同滴灌水温在灰漠土中水热耦合模拟与验证[J]. 新疆师范大学,2018,55(2):319-327.
APA	吉恒莹,李磐,付彦博,&冯耀祖.(2018).不同滴灌水温在灰漠土中水热耦合模拟与验证.新疆农业科学,55(2),319-327.
MLA	吉恒莹,et al."不同滴灌水温在灰漠土中水热耦合模拟与验证".新疆农业科学 55.2(2018):319-327.