退耕还林工程效益评价研究综述

在目前退耕还林工程效益评价中,运用水分、土壤、小气候和生态环境等指标对生态效益进行评价的研究较多;在社会、经济效益评价时,主要是通过问卷调查的方式,对农村产业结构、农民户均收入、贫困人口数量、农民文化水平和受教育程度、农产品商品率、农民消费水平、恩格尔系数等指标进行分析,采用对比增量法得出评价结论.同时,指出了目前退耕还林效益评价研究的特点和不足,提出了今后研究的方向.

An Overview of Benefit Evaluation of the Conversion of Cropland to Forest Project

Most of the researches on the benefit evaluation of the conversion of cropland to forest project focused on the ecological benefit evaluation by using the indexes such as water,soil,microclimate and ecological environment.While evaluation social and economic benefits,questionnaire survey was often adopted to investigate the indices such as rural industrial structure,average income of the household,the quantity of the poverty population,the farmers' cultural and educational level,the commodity rate of the agricultural product,the farmers' consumption level,and Engel Coefficient to get the conclusion by using comparative increment method.Characteristics and shortcomings were pointed out,developmental trend of the research were discussed.