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Evaluation of Soil and Water Conservation Benefits in Northern Sand Wind Region of China

Author: LiWenHui
Tutor: WuJunNian
School: Lanzhou University
Course: Environmental Engineering
Keywords: Soil and Water Conservation Northern sandstorm area Analytic Hierarchy Process Comprehensive benefits Diversion and soil conservation benefits Economic benefits Social benefits Ecological benefits Liangzhou
CLC: S157
Type: Master's thesis
Year: 2011
Downloads: 148
Quote: 0
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Abstract


Soil and water conservation is a basic state policy of China 's long-term adherence , benefit evaluation of soil and water conservation is an important part in the scientific system of soil and water conservation , is a multi-factor , the overall efficiency of the system of multi - target , multi-index evaluation problem . Northern China sandstorm area of more serious soil erosion areas , northern sandstorm area Soil and Water Conservation comprehensive benefits evaluation has an important significance for the implementation of our soil and water conservation policies . \analysis based on inductive GB Water Conservation Benefits evaluation theory and methods through the adjustment and supplement of the evaluation system and its hierarchy to construct the index system suitable for the the sandstorm District comprehensive Benefit Evaluation of Soil and Water Conservation . The system is based on soil and water conservation comprehensive benefits for the target layer , diverting water and soil conservation benefits , economic, social and ecological benefits for the the criteria layer of soil and water conservation comprehensive benefit evaluation system , containing a total of 20 indicators . Analytic Hierarchy Process , Select , Wuwei City , Gansu Province , the typical regional Liangzhou specific case study analysis . Analysis of the results and the actual local conditions closer to build a reasonable evaluation index system and evaluation method is feasible and can be applied to the northern sand Comprehensive Benefit Evaluation of Soil and Water Conservation . The results of the evaluation show that the soil and water conservation compared to the overall efficiency of Liangzhou 2004-2008 five-year period 1991-1995 has improved significantly , but there are still many deficiencies . Soil conservation benefits from the diversion , the eco-efficiency analysis of visible evaluate regional soil and water conservation the basis of efficiency is not high , and that the trend of expansion of the area of soil erosion has not been fundamentally curbed, the need to increase water and soil conservation and ecological construction investment ; social benefits, economic point of view, have received increasing attention due to soil and water conservation, ecological construction , the comprehensive control of soil in the local made ??significant social and economic benefits , and promote regional socio-economic development .

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CLC: > Agricultural Sciences > Agriculture as the foundation of science > Soil > Soil and Water Conservation
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