我国草原修复工程效益评价与区域差异分析  

Evaluation of the Benefits and Regional Differences of Grassland Restoration Projects in China

作　　者：王灵艳 张建辉 陈磊 WANG Ling-yan;ZHANG Jian-hui;CHEN Lei(Industry Development and Planning Institute,National Forestry and Grassland Administration,Beijing 100010,P.R.China)

机构地区：[1]国家林业和草原局产业发展规划院,北京100010

出　　处：《森林防火》2024年第4期108-113,共6页JOURNAL OF WILDLAND FIRE SCIENCE

基　　金：国家林业和草原科学普及项目(2022133305)。

摘　　要：基于全国草原监测数据和相关调研数据,评估了我国草原修复工程生态效益及区域差异。采用对比分析方法,对66个工程县植被盖度、鲜草产量和土壤健康进行了定量评价。结果显示:退牧还草工程显著提高了植被盖度(比非工程区高13.66%)和鲜草产量(提升60.81%)。京津风沙源治理工程成功遏制了沙化,显著增加了植被盖度和草产量。西南岩溶地区草地治理工程在生态、经济和社会效益方面取得了显著进展。研究表明:草原修复工程有效恢复了生态功能,提升了区域生态安全,但需优化管理策略确保其可持续性。In this study,based on national grassland monitoring data and related survey data,the ecological benefits and regional differences of grassland restoration projects in China were evaluated.Using comparative analysis,a quantitative assessment was conducted on vegetation cover,forage yield,and soil health in 66 project counties.The results showed that the"Returning Grazing Land to Grassland"project significantly improved vegetation cover(13.66 percentage points higher than non-project areas)and forage yield(increased by 60.81%).The Beijing-Tianjin Sand Source Control Project successfully curbed desertification,significantly increasing vegetation cover and forage yield.The Southwest Karst Grassland Restoration Project achieved significant ecological,economic,and social benefits.This study indicated that grassland restoration projects effectively restore ecological functions and enhance regional ecological security,but management strategies need to be optimized to ensure sustainability.

关 键 词：草原修复 生态效益 植被盖度 土地沙化 区域生态安全 

分 类 号：S762[农业科学—森林保护学]