| 岩溶区地表水与地下水资源及环境统一评价的流域边界划分研究 |
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| 引用本文： | 王宇.岩溶区地表水与地下水资源及环境统一评价的流域边界划分研究[J].中国岩溶,2019,38(6):823-830. |
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| 作者姓名： | 王宇 |
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| 作者单位： | 中国地质科学院岩溶地质研究所，广西 桂林 541004/云南省地质调查局，昆明 650051 |
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| 基金项目： | 国家重点研发计划项目“喀斯特断陷盆地石漠化演变及综合治理技术与示范”（2016YFC0502500） |
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| 摘 要： | 岩溶地区地表水流域与地下水流域边界的分异形式有三类，即:地表分水岭与地下水流域边界在平面分布上基本一致；地表分水岭超出了地下水流域边界；地下水流域边界超出了地表分水岭。岩溶区地表水与地下水耦合流域的顶界为地表水流域的水面及下垫面，底界为浅循环潜水含水层或潜水—承压含水层下伏的隔水层顶面，在大厚度岩溶含水层分布区，可以弱岩溶发育带的顶面作为底界。其中地表水与地下水两个子系统间的次级边界，为地表水流域的下垫面。结合专门调查（勘查）评价和区域调查评价的特性，提出评价单元划分的原则及方法。这有助于在新一轮自然资源调查评价中，以流域为单元系统地开展水资源及环境调查评价，实行地表水和地下水资源及环境的统一管理。
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| 关 键 词： | 环境 地表水 地下水 流域边界 径流系统 |
Study on watershed boundary division for unified evaluation of surface water and groundwater resources and environment in karst areas |
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| WANG Yu.Study on watershed boundary division for unified evaluation of surface water and groundwater resources and environment in karst areas[J].Carsologica Sinica,2019,38(6):823-830. |
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| Authors: | WANG Yu |
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| Institution: | Institute of Karst Geology ,CAGS, Guilin , Guangxi 541004,China/Yunnan Geological Survey, Kunming, Yunnan 650051, China |
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| Abstract: | There are three types of boundary differentiation between surface water basins and groundwater basins in karst areas, that is, the surface watershed and groundwater basin boundary are basically the same in plane distribution;surface watersheds extend beyond the boundaries of groundwater basins.The boundaries of groundwater basins extend beyond surface watersheds.The top boundary of surface water and groundwater coupling basin in karst area is the surface and underlying surface of surface water basin, and the bottom boundary is the top surface of shallow circulating groundwater aquifer or aquifer between aquifer and confined aquifer. In the karst aquifer distribution area with large thickness, the top surface of weak karst development zone can be regarded as the bottom boundary.The secondary boundary between the two sub-systems of surface water and groundwater is the underlying surface of the surface water basin.Combined with the characteristics of specialized (investigation) exploration and regional investigation evaluation, the principle and method of evaluation unit division are put forward.In the new round of natural resources investigation and evaluation, it is helpful to systematically carry out the investigation and evaluation of water resources and environment with watershed as a unit, and implement the unified management of surface water and groundwater resources and environment. |
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