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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
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引用本文: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. XIA Riyuan,ZOU Shengzhang,TANG Jiansheng,LIANG Bin,CAO Jianwen,LU Haiping.Technical key points of 1∶50,000 hydrogeological and environmental geology surveys in karst areas of South China [J].Carsologica Sinica,2017,36(5):599-608.
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夏日元 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室 
邹胜章 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室 
唐建生 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室 
梁彬 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室 
曹建文 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室 
卢海平 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室 
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)
中文摘要:通过总结南方岩溶地区水文地质环境地质综合调查和地下水开发利用示范6个方面成果,得出南方岩溶地区水文地质环境地质条件具有10个特性:岩溶发育受层组结构类型、地质构造格局和水动力条件等因素控制的综合性,岩溶地下水分布的非均一性,岩溶含水介质由孔、隙、缝、管、洞构成的多重性,岩溶地下水流运动的多相性,岩溶地下水动态变化的剧变性,岩溶水资源时间分布的季节性,干旱与洪涝的交替性,岩溶地下水污染的隐蔽性,岩溶地下水的深埋性,岩溶地下水与生态经济的相关性;论述了对碳酸盐岩层组结构类型、构造演化与岩溶发育期次、岩溶形态组合关系、表层岩溶带、岩溶地下水系统、岩溶地下河、主要环境地质问题和岩溶水资源开发利用条件8个关键科学问题调查研究的技术要点。
中文关键词:南方岩溶地区  水文地质调查  环境地质问题  地下河  水资源
 
Technical key points of 1∶50,000 hydrogeological and environmental geology surveys in karst areas of South China
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 conditions. The development and distribution of karst in the area is quite uneven. The special subsurface-underground 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 development 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 geology 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 environmental 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 structure, geologic structure frames and hydrodynamic conditions; heterogeneity of karst groundwater distribution; multiplicity of karst water-bearing media by pores, gaps, joints, pipes and holes; multiphase characteristics 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 resources.
keywords:karst areas in South China, hydrogeology survey, environmental geological problems, underground water, water resources
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