摘要
通过系统查阅有关文献资料,结合平谷区2002年土地利用现状图和2000年5月1∶1万遥感影像图,对北京市平谷山区土地利用现状进行野外调查,综合分析山区土地资源持续高效利用的可行性,认为发展高效观光型经济林和经济型生态防护林是两种较好的山区土地利用模式.并对山区土地利用模式重建的生态环境影响进行了评价,提出了在山区土地利用模式重建过程中采用植物嫁接技术使低山区天然次生酸枣灌丛转化为经济型生态林;在山前修筑集雨工程以涝补旱,大力推广节水灌溉,保证水资源高效利用;优化山地土地利用结构,采用生物防治法以防止农业面源污染扩大等措施.
By means of the documentary method,the field-investigating method, and the method for synthetical analysis, we investigated the staus quo of land use in Pinggu District of Beijing in line with the land use map in 2002 and the 1:10000 remote sensing image in May 2000, synthetically analyzing the feasibility of sustainable and effective land using mode in mountain areas and discussing its ecological environmental impact. The results show that both the mode of effectively sightseeing economic forests and the mode of economic ecological forests are better ones,and that it is very necessary to carry out EEIA for land use reconstruction in mountain areas.Therefore, in this process we should change natural secondary shrubbery in lower mountains into economic ecological forests by plant grafting for reducing soil and water loss,by building rain-collecting projects to make up for the shortage of water during drought, popularizing water-saving irrigation to use water effectively, as well as optimizing the structure of land use in mountain areas and taking ecological measures to prevent agricultural non-point pollution,etc.
出处
《海南师范学院学报（自然科学版）》
2004年第3期286-291,共6页
Journal of Hainan Normal University:Natural Science
关键词
平谷山前
山地利用重建模式
生态环境影响评价
持续发展
mountain areas in Pinggu
the reconstructing mode of land use in mountain areas
ecological environmental impact assessment
sustainable development
