摘要
华家岭防护林带是甘肃中部黄土丘陵区"三北"防护林体系工程的重要组成部分。经过数十年的建设,华家岭已形成了100 km长的主林带1条,支林带10条共300多km,全区累计造林面积6 200 hm2,生态防护效益显著。但同时,林带也存在着树种结构不合理,林分总体质量偏低、经营管理粗放、低产低效林所占比重大等问题。因此,坚持生态优先原则,通过经营类型的划分和分类经营,改善防护林带的生态现状,以逐步提高华家岭防护林带的生态、经济效益,促进其持续发展。
Huajialing shelter belt is one of the important components of Three-North Forest Sheherbeh Program in the loess hilly region of Central Gansu. Huajialing shelter, with one 100 km main forest belt and ten subsidiary forest belts in total 300 km length and 9.3 hm2 area, has played a significant ecological protection benefit through the past decades of construction. However, the following problems are existed, such as unreasonable space structure of shelter- belt, low yield per unit area of forest belt, low quality of shelterbelt, extensive pattern of forest management, and high percentage of the low production and profit forest plantation in Huajialing shelterbelt. Therefore, on the principle of e- cological protection, the ecological status will be improved by classification management on different type of forest to improve the ecological and economic benefits of shelter and realize the sustainable development of Huajialing shelter.
出处
《甘肃林业科技》
2013年第1期17-19,30,共4页
Journal of Gansu Forestry Science and Technology
基金
甘肃省高等学校研究生导师科研项目"黄土丘陵区低效公益林改造技术及生态风险评价(1202-01)"
关键词
华家岭
防护林
生态
经营
对策
Huajialing
shelter belt
ecology
management
countermeasures
