摘要
选取财务成本效益(投资收益率、财务净现值、益本比)、社会经济效益(医疗费用节省率和培训过的农民户均增收率)、技术经济效益(冲厕节水率、病虫害减少率、果业或蔬菜增收率和工人技术水平提高率)和生态经济效益(造林费用节省率、CO2减排率、SO2减排率、土壤改良、化肥节约率)共4个1级指标14个2级指标,依据3种不同模式生态校园的经济效益的原始调查数据,利用主成分投影评价法,采用功效系数变换法对指标值进行归一化处理,在将矩阵元素进行无量纲化处理的基础上,探讨了我国西北农村生态校园模式经济效益评价指标权重的计算方法,建立了生态校园经济效益评价的主成分投影评价模型。结果表明,从财务成本的角度来说,3种生态校园模式的经济效益并不是很显著,在实现生态效益的同时也实现了其经济效益;从主成分投影评价模型的总体评价结果来看,猪、厕—沼—菜模式整体经济效益最佳,草—羊、厕—沼—果次之,厕—沼—菜最差,具有的较强实际意义,为全国其他地区农村中小学进行生态校园建设的经济效益评价研究和推广提供理论基础。
Financial cost benefit（investment yield,financial net present value,benefit-cost ratio）,social and economic benefits（saving rate of medical cost,average household income rate of trained farmers）,technical and economic benefits（toilet-flushing water saves,pests and disease reduce rate,fruit or vegetable increase rate,and improve rate of technical skill level）,and ecological and economic benefits（saving rate of afforestation cost,reduction of CO2 discharge,reduction of SO2 discharge,soil improvement,fertilizer saving rate） are selected.According to the original survey data of eco-campus economic benefits with 3 different modes,Principal Component Projection is used to discuss the calculation method for evaluation index weight of economic benefits in northwest rural eco-campus,and to establish the principal component projection model of eco-campus economic benefits after the normalization processing of index value by efficiency coefficient transformation method based on dimensionless treatment of matrix element.Result shows that from the aspect of financial cost,economic benefits of three eco-campus modes are insignificant.Both ecological benefits and economic benefits are achieved at the same time.According to the overall evaluation results of Principal Component Projection Model,the ＂Pig,Toilet-Biogas-Vegetable＂ mode has obtained the maximum economic benefits,followed by the ＂Grass-Sheep,Toilet-Biogas-Fruit＂.And the ＂Toilet-Biogas-Vegetable＂ has the poorest economic benefits.This result is of strong practical significance and provides a theoretical basis for economic evaluation research and extension of eco-campus construction in rural primary and secondary schools in other areas of China.
出处
《安徽农业科学》
CAS
北大核心
2010年第7期3682-3684,共3页
Journal of Anhui Agricultural Sciences
基金
陕西省重大科技专项计划(STXY-01-02)
教育部科技专项计划(2006-291)
关键词
农村生态校园
经济效益
评价
主成分投影
Rural eco-campus
Economic benefits
Evaluation
Principal Component Projection
