NEGATIVE EFFECT TO KEERQIN WETLANDS BY THE WATER RESOURCES DEVELOPMENT

This paper presents negative effect of the water resources development to Keerqin wetlands of state nature reserve located semiarid area in downstream of the Huolin River.If the project being initiated unreasonably,the holding up of water resources will reduce the upstream coming water and make no efficient surface-water supplement for wetlands along the river,water level decline,furthermore,dry up and affect the groundwater supply It will also apparently effect the waterside flora located in semiarid area and will make wetlands plants evolve into dryland plants gradually.The decline of flood frequency decreases the incubation times and scale of rare waterfowls,causes their number to decrease.High productive flood wetlands in this area will be gradually shrunk,be fractured and until totally lost,the vulnerable ecological balance will be havoc.This paper submits relevant countermeasures for dealing with the possible negative effect.