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Eco-environment contribution of agroforestry to agriculture development in the plain area of china—Huai'an Prefecture, Jiangsu Province as the case study area

引用

Journal of Environmental Sciences 2005年第2期17卷 327-331页

作者： RENHong-chang LUYong-long LIUCan MENGQing-hua SHIYa-juan ResearchCenterforEco-EnvironmentalSciences ChineseAcademyofSciencesBeijing100085China／／AcademyofForestInventoryandPlanningStateForestryAdministrationBeijing100714China ResearchCenterforEco-EnvironmentalSciences ChineseAcademyofSciencesBeijing100085China chinaNationalForestryEconomicsandDevelopmentResearchCenter Beijing100714China AcademyofForestInventoryandPlanning StateForestryAdministrationBeijing100714China

For improving the environmental quality and ensuring supply of wood and non-timber forest products, many forests have been planted in plain areas of china. Scientists have studied their benefits, almost all of the approaches were based on fixed-point data, and few was considered on the non-efficient factors and temporal scale effects. This paper studies the positive and negative benefits at a large temporal scale, and the effects of plain afforestation on stockbreeding and rural economy. The benefits of plain afforestation, correlation coefficiency of agroforestry and production factors are analyzed via stochastic frontier modeling in Huanghuaihai plain area of china; elastic coefficient of agroforestry, husbandry, farming, and total output of agricultural sector are calculated through adopting partial differential equation. Some conclusions can be drawn that, plain forests have an important effect on the development of plain agriculture. But shelterbelts and small-scale forests have different effect on the development of agricultural economy. Shelterbelts have negative effect on the industries, but small-scale forest has positive effect. On the whole, contribution of forest resource to value of animal husbandry and gross production value of agriculture is positive, and to the value of farming is negative.

关键词： plain afforestation agricultural development agroforestry plain area of china

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