Major Scientific Issues on Water Demand Studying for Groundwater-Dependent Vegetation Ecosystems in Inland Arid Regions
Groundwater in inland arid regions has important functions in vegetation ecology.The water demand of groundwater dependent vegetation ecosystems is an important part of the integrated management of watershed water resources.Advances in studies of ecological function of groundwater resources are reviewed in this paper,and the major key scientific issues in water demand studies of groundwater-dependent vegetation ecosystems in inland arid regions are proposed:① identification method of groundwater-dependent vegetation ecosystems,② mechanism of groundwater on vegetation ecosystem,③ safety limits of the groundwater key attributes,④ groundwater system structural analysis,⑤ ecological water allocation plan,⑥ conceptual model of the relationship on groundwater-natural vegetation system in regional scale.Potential approaches to solve the problems are discussed,which can provide not only ideas for vegetation protection and restoration of ecosystems in arid regions,but also scientific support for improving ecological civilization.
water demand of ecologygroundwater-dependent vegetation ecosystemsinland arid regiongroundwaterremote sensing