土壤2011，Vol.43Issue(5)：828-834,7.
基于土地适宜性评估退耕还林还草工程的效果——以科尔沁左翼后旗吉尔嘎朗镇为例
Evaluation on Results of Grain for Green Project in Horqin Sandy Land——A Case Study of Jilgalang Town
摘要
Abstract
This study selected Jilgalang Town as the study region, evaluated the result of Grain for Green Project during 2000-2007 based on land suitability, calculated the reasonable returning area and noted the issues that should be considered in the future. The results can be concluded as follows: ① The arable land decreased while the woodland and grassland increased obviously, and the coverage of grasslands increased significantly since the implement of Grain for Green Project ② There were a series of problems during the past 7 years. As for the transform trend, area and spatial distribution of related land types, some farmlands that should be returned to forests were actually returned to grasslands; besides, some farmlands that should be returned to grasslands were actually returned to forests. The actually returned farmland only accounted for 28.63% of the farmland that should be returned to forests or grasslands according to land suitability. ③ In the future, 8 172.00 hm2 farmland should be gradually returned to forests or grasslands, among which about 73.29% should be returned to forests. ④ It was extremely important to formulate and implement some reasonable follow-up policies which should take more consideration of promoting the income of farmers so as to ensure both the ecological benefits and the economic benefits of the Grain for Green Project.关键词
退耕还林还草/土地利用变化/土地适宜性/效果评价/科尔沁沙地Key words
Grain for Green Project/Land use changes/Land suitability/Evaluation/Horqin sandy land分类
社会科学引用本文复制引用
郝海广,乌兰图雅..基于土地适宜性评估退耕还林还草工程的效果——以科尔沁左翼后旗吉尔嘎朗镇为例[J].土壤,2011,43(5):828-834,7.基金项目
国家自然科学基金项目(40361008)资助. （40361008）
