中国岩溶2017，Vol.36Issue(5)：599-608,10.DOI:10.11932/karst20170501
南方岩溶地区1∶5万水文地质环境地质调查技术要点分析
Technical key points of 1∶50,000 hydrogeological and environmental geology surveys in karst areas of South China
摘要
Abstract
The karst area in South China is about 520,000 square kilometers,which is controlled by the rock properties,group structure types,geological structural framework,topography and hydrodynamic condi-tions.The development and distribution of karst in the area is quite uneven.The special subsurface-under-ground double-deck structure leads to the lack of surface water and deep buried underground water.With the influence of global climate change and irrational human activities,rocky desertification,drought and flood disasters,groundwater pollution and other major environmental geological problems have occurred in karst areas of South China.These natural and man-made factors have seriously restricted the sustainable develop-ment of regional social economy,making many karst areas become one of the poorest areas in the country.In order to promote the economic development,ecological civilization construction and poverty alleviation of the karst areas in South China,it is necessary to further clarify the karst hydrogeology and environmental geolo-gy conditions,providing a basis for the development and utilization of resources,offering water resources guarantee for the residents and economic development of areas with serious water shortage,and technical support for the protection and control of ecological environments. By summarizing the six research results on the comprehensive investigations of hydrogeology and envi-ronmental geology and groundwater development and utilization in the karst areas of South China,this study suggests 10 characteristics of hydrogeological and environmental geology conditions in karst areas of South China,which are stated below,the comprehensiveness of karst development controlled by the strata struc-ture,geologic structure frames and hydrodynamic conditions;heterogeneity of karst groundwater distribu-tion;multiplicity of karst water-bearing media by pores,gaps,joints,pipes and holes;multiphase charac-teristics of karst groundwater flow;variability of karst groundwater dynamics;seasonal distribution of karst groundwater resources;alternation of drought and flood;concealment of karst groundwater pollution;big buried depth of karst groundwater;and correlation between karst groundwater and ecological economy.At the same time,this study discusses the technical points of investigations and research on the 8 key scientific problems,including carbonate rock group structure,tectonic evolution and development period of karst, karst-form combination relationship,surface karst zones,karst groundwater systems,karst underground river,the main problems of environmental geology,and development and utilization of karst water re-sources.关键词
南方岩溶地区/水文地质调查/环境地质问题/地下河/水资源Key words
karst areas in South China/hydrogeology survey/environmental geological problems/under-ground water/water resources分类
天文与地球科学引用本文复制引用
夏日元,邹胜章,唐建生,梁彬,曹建文,卢海平..南方岩溶地区1∶5万水文地质环境地质调查技术要点分析[J].中国岩溶,2017,36(5):599-608,10.基金项目
"岩溶地区水文地质环境地质综合调查工程"、中国地质调查局地质调查项目(1212011121157,1212011121164,1212011121166,1212011220959,DD20160300,DD20160302) （1212011121157,1212011121164,1212011121166,1212011220959,DD20160300,DD20160302）
