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荒漠区地下水埋深数据获取方法研究
刘秉儒1,2, 牛宋芳1,2
1.宁夏大学 西北土地退化与生态恢复国家重点实验室培育基地, 宁夏 银川 750021;2.宁夏大学 西北退化生态系统恢复与重建教育部重点实验室, 宁夏 银川 750021
摘要:
[目的]分析、遴选出获取荒漠区地下水埋深数据的几种快速、准确的技术与方法,为研究荒漠区植物与地下水埋深的关系、地下水资源查找提供技术参考。[方法]通过分析观测井实测法、土壤阻抗系数法、探地雷达法以及核磁共振技术、地震勘探技术等方法的原理、优缺点及适用情况,最后综合操作便利性、精度和仪器设备价格等因素,分析、遴选出获取荒漠区地下水埋数据的技术方法。[结果]探测荒漠区地下水埋深,应在熟悉这些技术方法的原理、优缺点及适用情况基础上,综合考虑操作便利性、数据精度和仪器设备价格、劳动力成本等因素,多角度权衡比较与遴选。[结论]在荒漠区已有观测井,使用观测井实测是最便宜且准确度最高的方法;在地形条件复杂,交通不便利的情况下,采用核磁共振、地震探测方法中的一种;如果测定沙地地下水埋深,可使用土壤阻抗测定仪探测。
关键词:  荒漠区  地下水埋深  测定方法
DOI:10.13961/j.cnki.stbctb.2018.04.025
分类号:
基金项目:宁夏自然科学基金项目“荒漠草原人工灌木林地下水埋深生长季的变化规律及其与降水量关系”(NZ15001)
Reviews on Methods of Obtaining Groundwater Depth in Desert Area
LIU Bingru1,2, NIU Songfang1,2
1.Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of North-western China, Ningxia University, Yinchuan, Ningxia 750021, China;2.Key Lab. for Restoration and Reconstruction of Degraded Ecosystem in North-western China of Ministry of Education, NingxiaUniversity, Yinchuan, Ningxia 750021, China
Abstract:
[Objective] In order to provide technical reference for the study of the relationship between plant and groundwater depth in desert areas and the search for groundwater resources, several rapid and accurate techniques and methods for obtaining groundwater depth in desert area were analyzed and selected.[Methods] Through the analysis of observation wells, soil impedance coefficient, ground penetrating radar and nuclear magnetic resonance, the principles, advantages and disadvantages and application of several methods for measuring groundwater depth, such as seismic exploration technology, and factors such as comprehensive operation convenience, accuracy and equipment price, etc., are analyzed to select several rapid and accurate techniques for obtaining groundwater depth in desert areas.[Results] When detecting groundwater depth in desert area, we should be familiar with the principle, advantages and disadvantages of these methods, and consider the convenience of technical operation, data precision and the price of instrument and equipment, labor costs and other factors as well to comparative trade-off analysis for the selection of scientific, reasonable technical programs.[Conclusion] It is the cheapest and most accurate method to determine the groundwater depth in desert area, and when the terrain conditions are complex and the traffic is not convenient. Nuclear magnetic resonance (NMR), seismic detection in one case, if groundwater depth is measured in homogeneous sandy land, a soil impedance meter could be used.
Key words:  desert area  groundwater table  determine methods