Based on landform,climate,river system,geological structure and hydrogeological structure and from the perspective of systematology,the groundwater system of Asia can be divided into 36 secondary groundwater systems u...Based on landform,climate,river system,geological structure and hydrogeological structure and from the perspective of systematology,the groundwater system of Asia can be divided into 36 secondary groundwater systems under 11 primary ones by the intercontinental scale.This forms part of the work of the groundwater series map of Asia,which is compiled according to groundwater system division and evaluation of the total amount and types of aquifer,reflecting the large-scale features of groundwater resources in Asia.Systematic profiling of groundwater in this way provides a scientific basis for groundwater exploitation planning and management in Asia,and avoiding disputes over groundwater resources and the environment among Asian countries.展开更多
It is important to take into account land use when considering water resource demands.The Hydrological unit is defined as the assimilation of land use and soil properties into a lumped element,spatially separate area ...It is important to take into account land use when considering water resource demands.The Hydrological unit is defined as the assimilation of land use and soil properties into a lumped element,spatially separate area which exhibits a typical hydrological reaction.Using physically based equations,water balance can be calculated and compared for different hydrological units and thus water resources can be assessed.The Huanghua City in Hebei province is taken as an example to analyze the hydrological elements of water resources supply and demand for different land use types.Huanghua City is located in the alluvial plains,which is flat,and geologically uniform.The altitude is generally in 2.5-5 m above sea level.The geomorphology consists of an ancient river course,depressions,shallow depressions,ancient shell dikes and lagoons,typical characteristics of a coastal plain.展开更多
基金granted by Asian geological environment series map of 1:5,000,000 and research for major geological environment problems(1212011120137)Series Maps of Karst environment geology of China and South East Asia(12120114006401,12120114006301)Co-compilation of hydrogeology and environmental geology maps of Central Asian countries(DD20160106)
文摘Based on landform,climate,river system,geological structure and hydrogeological structure and from the perspective of systematology,the groundwater system of Asia can be divided into 36 secondary groundwater systems under 11 primary ones by the intercontinental scale.This forms part of the work of the groundwater series map of Asia,which is compiled according to groundwater system division and evaluation of the total amount and types of aquifer,reflecting the large-scale features of groundwater resources in Asia.Systematic profiling of groundwater in this way provides a scientific basis for groundwater exploitation planning and management in Asia,and avoiding disputes over groundwater resources and the environment among Asian countries.
文摘It is important to take into account land use when considering water resource demands.The Hydrological unit is defined as the assimilation of land use and soil properties into a lumped element,spatially separate area which exhibits a typical hydrological reaction.Using physically based equations,water balance can be calculated and compared for different hydrological units and thus water resources can be assessed.The Huanghua City in Hebei province is taken as an example to analyze the hydrological elements of water resources supply and demand for different land use types.Huanghua City is located in the alluvial plains,which is flat,and geologically uniform.The altitude is generally in 2.5-5 m above sea level.The geomorphology consists of an ancient river course,depressions,shallow depressions,ancient shell dikes and lagoons,typical characteristics of a coastal plain.
