The main eco-environmental problems in Southern Shaanxi Province were revealed

which include soil and water loss

frequent geological hazards

and the low level of environmental pollution prevention.The annual potential economic loss in regional development caused by soil fertility loss

river channel and reservoir dredging

economic compensation for converting farmland to forest and grassland

and engineering water shortage was estimated by using the methods of market value substitution

shadow engineering

recovery cost

and value compensation.Their possible influences on water quality in the Middle Route of South to North Water Transfer Project were analyzed.Based on the analyses

some countermeasures of solving the eco-environmental problems were proposed

such as enhancing soil and water conservation and headwater area protection for the accelerated eco-environmental development

implementing the resident removal avoidance and ecological migration

and taking the comprehensive treatment of environmental pollution.