摘要
退耕还林因地域的差异存在不同的问题。长江上游山区本质属于受干扰山地系统,生态恢复需从多尺度和多角度入手。作为一个契机,退耕还林对生态恢复的作用在持续性和生态性上存在着矛盾和统一,同时也存在不同利益主体之间的博弈。针对岷江上游区域,在分析了社会、生态复杂性的基础上,通过对不同区域的对比,讨论了人工林种植后的生态效应,研究发现抚育较好的人工林生物多样性和土壤质量指数增加,人工林需要加强人为的干预,并根据在该区域的社会经济调查,指出了退耕还林存在的问题并提出了相应的对策。
Different problems in ＂Conversion of Farmland to Forestland＂ exist in different regions. Ecological restoration in the upper reaches of Yangtze River, which belongs to disturbed mountainous region, needs to be examined from different perspectives and scales. As a challenge, the restoration projects may be contradictory in maintaining ecological sygtem and exploration, and may have different effects on different groups of people. By analyzing the complexity of upper Minjiang River Valley, the ecological effect of reforestation was discussed in different case study areas. The results showed that the biodiversity and soil quality increased in the well-reforested land. It is suggested that human intervention is needed in reforestation. With the social and economical investigation, suggestions were put forward to solve problems in ＂Conversion of Farmland to Forestland＂.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2006年第4期506-510,共5页
Resources and Environment in the Yangtze Basin
基金
国家自然科学基金项目(40504067
40321101)
"973"项目(G20000046807)
国土资源部土地利用重点实验室开放基金
关键词
退耕还林
生态恢复
岷江上游
人工林
conversion of farmland to forestland
ecological restoration
upper Minj iang River Valley
artificial forest
