摘要
由于岩溶地区特有的地上地下二元水文结构,其岩溶水系统循环演化具有特殊性,因而水不仅会携带土壤发生地表流失,而且会发生地下漏失,造成该地区土壤流失量大,岩溶石漠化现象突出,治理难度大。本文以贵州贞丰-关岭花江高原峡谷石漠化治理示范区为研究区域,通过野外调查、水样分析及数值模拟方法,对该区岩溶水系统的补、径、排特征,水化学特征和水均衡量等进行分析模拟计算出地下水位、地下暗河流量变化情况,得到该区岩溶水均衡量,其结果基本反映了实际地下水系统排泄量变化及地下水流向特征,初步阐明该区域岩溶水系统循环演化特征,为岩溶石漠化地区的土壤地表流失和地下漏失的趋势研究及防治提供理论依据。
Due to the unique above-ground and underground binary hydrological structure in the karst area, the karst water system has a special circulation evolution. So the water can not only carry the surface loss of the soil, but also the underground loss, resulting in large soil loss and karst rock desertification in the area. The phenomenon is outstanding and the governance is difficult. This paper takes the demonstration area of rocky desertification control in Huanjiang Gorge Plateau of Guizhou Province as the research area. Through field investigation, water sample analysis and numerical simulation method, the karst water system s recharge, runoff, drainage characteristics, water chemistry characteristics and water balance are analyzed and simulated to calculate the groundwater level and underground dark river flow changes. The equilibrium amount of karst water in this area is obtained. The results basically reflect the changes of actual groundwater system discharge and groundwater flow characteristics, and preliminarily clarify the cyclic evolution characteristics of the karst water system in this area. They provide a theoretical basis for the study and prevention of soil surface loss and underground loss in karst rocky desertification areas.
作者
姚邦杰
刘琦
任标
王涵
YAO Bangjie;LIU Qi;REN Biao;WANG Han(Department of Geotechnical Engineering, School of Civil Engineering, Tongji University, Shanghai 200092;Key Laboratory of Geotechnical and Underground Engineering, Ministry of Education, Tongji University, Shanghai 200092)
出处
《工程地质学报》
CSCD
北大核心
2019年第5期1179-1187,共9页
Journal of Engineering Geology
基金
国家自然科学基金项目(41772292)
国家重点研发计划(2016YFC0502603)资助~~
