广西凌云县地下水资源量评价  

Evaluation of groundwater resources quantity in Lingyun County of Guangxi

作　　者：罗崴 LUO Wei(Guangxi Geological Survey Institute, Guangxi Nanning 530023, China)

机构地区：[1]广西壮族自治区地质调查院,广西南宁530023

出　　处：《中国地质调查》2022年第1期91-103,共13页Geological Survey of China

基　　金：广西壮族自治区地质矿产勘查开发局;广西凌云县自然资源局“凌云县岩溶区1∶5万水文地质环境地质调查;凌云县地下水资源开发利用与保护调查(编号:GXBSZC 2017-G3-0009-DY)”项目资助。

摘　　要：为研究广西凌云县地下水资源状况,在分析区内地质构造、岩溶发育特征、含水介质及水动力条件的基础上,采用降水入渗系数法和枯季径流模数法分别对凌云县地下水天然补给量和可开采资源量进行评价,并对地下水资源空间分布特征进行分析。结果表明全区地下水多年平均天然补给量112619.73万m^(3)/a,其中岩溶地下水多年平均天然补给量69797.68万m^(3)/a,基岩裂隙水多年平均天然补给量为42822.05万m^(3)/a,可开采资源量为9840.37万m^(3)/a。区内岩溶发育较强烈,岩溶形态丰富,岩溶发育在垂向上具有一定分带性,高程跨度大,地下水资源空间分布总体相对较为均匀。研究成果为凌云县地下水资源可持续开发利用提供了科学依据。In order to study the situation of groundwater resources in Lingyun County of Guangxi,based on the analysis of geological structure,karst development characteristics,water-bearing medium and hydrodynamic conditions,the author evaluated the natural recharge and recoverable resources of groundwater in Lingyun County through precipitation infiltration coefficient method and runoff modulus method in dry season,and analyzed the spatial distribution characteristics of groundwater resources.The results show that the annual average natural recharge of groundwater in the whole region is 112619.73×10^(4)m^(3)/a,of which the annual average natural recharge of karst groundwater is 69797.68×10^(4)m^(3)/a,and the annual average natural recharge of bedrock fissure water is 42822.05×10^(4)m^(3)/a,with 9840.37×10^(4)m^(3)/a of recoverable resource.The karst is well developed in this area,with abundant karst forms.The karst development has certain subdivision in the vertical,of which the elevation span is large,and the overall spatial distribution of groundwater resources is relatively uniform.This research results provide scientific basis for the sustainable development and utilization of groundwater resources in Lingyun County.

关 键 词：地下水资源量评价 降水入渗系数法 枯季径流模数法 地下水空间分布 

分 类 号：P641[天文地球—地质矿产勘探]