数据包络分析方法的运用——河南自然类型区退耕还林发展模式研究

Data Envelopment Analysis Application——A Case Study of Grain to Green Progtam in Natural Areas of Henan

根据河南省气候、植被、土地等因素，将全省划分为不同的自然类型区，从各个自然类型区中选择12个典型县市对其实施的退耕还林进行有效性分析。通过将输入输出指标数据代入模型后，分析求解得出非有效的决策单元，再运用包络分析方法的一些基本原理对非有效的决策单元进行调整，由此得出的数据对河南甚至全国类似地区的投入具有很好的指导意义。

According to the climate,vegetation,land and other factors in Henan,the province will be divided into different types of natural areas.From all types of natural areas,the paper chose 12 typical counties forthe effective analysis of returning farmland to forestland.By input and output indicator data into the model,the analysis of non-effective solution reached the decision-making unit,re-use of envelopment analysis method,the basic principle Of non-effective decision-making unit adjustment The resulting data from Henan even the National similar to the realities of the region has good input guiding significance.