中西部地区退耕还林还草模式探讨

在将我国退耕还林还草工程区划分为 2个大区 9个类型区的基础上 ,研究了每个大区的退耕还林还草基本技术思路和每个类型区的退耕还林还草模式 ,包括其类型区域范围、自然资源特点、社会经济特点、主要限制因子、基本技术思路、林草类型结构、植被恢复方式、植被恢复技术、主要树种草种、经营管护方式等

STUDY ON MODELS OF CONVERSION OF CROPLAND TO FOREST AND GRASSLAND IN THE MIDWEST CHINA

In the paper, the area of the Conversion of Cropland to Forest and Grassland Project was divided into two main regions and nine types of subregions. On the basis of subregion,the basic technical thinking and the model for the conversion of cropland to forest and grassland in each type of subregion were studied including the following contents: the geographical scope,the characteristics of natural resources,the social\|economic features, the main limiting factors,the basic technical thinking,the structure of forest and grass types,the ways of vegetation recovering, the techniques for vegetation recovering,the main tree and grass species, the protection and management patterns,etc.