| Cite this article: | 赵永,张宝忠,胡振华,等.基于最大有效持水量的区域土壤墒情监测点布设方法[J].灌溉排水学报,0,():-. |
| ZHAO Yong,ZHANG Baozhong,HU Zhenhua,et al.基于最大有效持水量的区域土壤墒情监测点布设方法[J].灌溉排水学报,0,():-. |
|
| |
|
|
| This article has been：Browse 1729Times Download 0Times |
|
|
|
| DOI： |
|
| Monitoring and setting method of regional soil moisture based on maximum effective water holding capacity |
|
ZHAO Yong1, ZHANG Baozhong2, HU Zhenhua1, JIN Jianhua2,3
|
|
1.Forestry College,Shanxi Agriculture University;2.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research;3.College of Water Conservancy Engineering,Tianjin Agricultural University
|
| Abstract: |
| The accurate acquisition of regional soil moisture can effectively improve the level of agricultural water management and support the development of modern agriculture. Based on the classical method and geostatistics , this paper used the maximum effective water holding capacity of soil as the key parameter to construct the optimal layout method of soil moisture monitoring points, and took the winter wheat field in Daxing District of Beijing as an example to verify method. The results showed that the maximum effective water holding capacity of soil in the experimental area has moderate variation at the soil depth of 0~20 cm,20~40 cm,40~60 cm , 60~80 cm and 0~40 cm ,0~80 cm; The reasonable monitoring points number of 0~40 cm and 0~80 cm soil depth is 6 and 4, respectively, and the location coordinates are determined; Compared with the average soil moisture content of 61 monitoring points in the whole region, the error of the monitoring value of the optimized monitoring point is within 10%. Therefore, the method of arranging soil moisture monitoring point based on the maximum effective water holding capacity can greatly reduce the number of monitoring points when the condition of ensuring the monitoring accuracy of regional soil moisture. |
| Key words: Maximum effective water holding capacity of soil; Optimal layout; Spatial variability; geostatistics; Soil moisture |
|
|
|
|
|
|
