Groundwater Systems and Eco-hydrological Features in the Main Karst Regions of China

1 Introduction Karst topography is widespread in China (Lu et al., 1973; Lu, 1986a), but its basic features are quite different in the main karstified areas in southern and northern China (Lu, 1999, 2003). The karst development appears to differ not only in the karst geomorphological types but also in the forms of the different karst water systems. The eco-hydrological features have obviously been influenced by human activities. The eco-hydrogeology is thus of great importance to study. Th…     

中国典型地区岩溶水资源及其生态水文特性

本文比较中国南北方岩溶水特性及其水资源。在中国南方主要岩溶地区,已知有3358条岩溶地下河系统,枯季流量有420×108m3/a,目前开发量只有8%~15%。而在中国北方岩溶地区主要形成平均流量在1~13m3/a、流域面积在几百至4000km2的近百个大的岩溶泉系统,其水资源开采量已达70%~80%。对一些典型中国岩溶生态水文特性,主要由6个方面,包括水环境、生态特性、母岩与土之间的特质、结构、生物—地质作用及孢粉等方面予以探讨。根据主要的生态条件和人工效应,对有关地质环境与石漠化予以评判。