Guohe River Government Project Comprehensive Benefit Appraisal

Guohe river is main draining water river courses in Huaibei area of Henan and Anhui province, originates in Yellow River south side of Kaifeng city of Henan Province, flows after Kaifeng, weishi, Tongxu, Taikang, Qi County, Zhecheng, Luyi County in Henan Province and Qiao Cheng, Guoyang, Mengcheng county of Bozhou city of Anhui Province, join Huaihe River nearby the Huaiyuan county. River course span 396km, basin total area 15900km2. Guohe River basin cross 2 city 1 area 4counties in Anhui Province, namely Bozhou city, Qiaocheng district, Guoyang, Mengcheng and Lixin county and Bengbu city, Huaiyuan county and so on. According to 2000s statistics data, in territory total population approximately 4,130,000 people, plants crops 394,000 hectare. In the basin the natural condition is extremely superior. It ever been the main road that Yellow River outflow and converge to sea in the history. after eroding many times, the river bed is eclipsed the width to brush the depth, after the flood inundates the shore the speed of flow to slow down, pinches the silt in the both sides deposition, raises year by year, causes both banks shape existing agreement 2km width the high ground, the far away river bank place to reduce gradually, the condition of draining water is very good, the flooding disaster frequency is very low. massive silt siltation is formed in river course of Guohe River for Henan Province developing irrigation by drawing water from Yellow river since 1958, Causing draining water impede, the flooding disaster frequent occurrence, creates the huge economic loss. Past some flood prevention facility existence very many questions, for the home court economical development, according to the Huaihe river committee and Ministry of Water Conservation's suggestion, the State Council decided implements the government to Guohe River. The article through to the natural condition and the social economy condition analysis, unifies to takes the government measure the analysis, selects is governed the project influence big 21 environment factor, analyzes each factor using analytic hierarchy process (AHP) the weight. By mixing up the general score recording the score , figuring every environment factor out, matching factor figuring each factors out, the value according to the matching factor judges advantageous effect and the adverse effect factor, according to their score, the conclusion are reached that the ecological environment of this area will improve greatly for the Guohe River governing project .As a significant hydraulic engineering, the ecology benefit benefits posterity's important matter, but has the good economic gain is the local authority and the inhabitant participates in the project positively the power. Through analysis which loses to all previous flooding disaster, utilization ecology method, obtains the project to eliminate the waterlogged aspect in the flood prevention the economic gain. The union project government not only obtains the shipping and the irrigation incomes, compare with the total investment, obtain the obviously economic interest, but also will be able to obtain the huge ecological environment benefit.