退耕还林工程不同林种生态效益评估  

Evaluation of Ecological Effects of Different Categories of Forests in the Project of Conversion of Cropland to Forest

作　　者：王红霞[1] 王兵[2] 李保玉[3] 牛香[2] 王晓燕[4] 鲁绍伟[5] 李少宁[5] 师贺雄[2] 陈波[5] 

机构地区：[1]国家林业局林产工业规划设计院,北京100010 [2]中国林业科学研究院森林生态环境与保护研究所,北京100091 [3]国家林业局退耕还林办公室,北京100714 [4]北京林业大学水土保持学院,北京100083 [5]北京市农林科学院林业果树研究所,北京100093

出　　处：《林业资源管理》2014年第3期150-155,共6页Forest Resources Management

基　　金：林业公益性行业科研专项(201204101)

摘　　要：采用分布式测算方法,对河北、辽宁、湖北、湖南、云南和甘肃6个重点监测省份的退耕还林工程不同林种的生态效益进行了评估。结果表明,生态林的综合生态效益最好,经济林次之,灌木林最差。其中,在固碳释氧、营养物质积累、净化大气环境和生物多样性保护方面,生态林均优于经济林和灌木林,表现最好;在保育土壤方面,灌木林的效益最好;就涵养水源的效益而言,生态林则优于灌木林。The ecological effects of ecological forest,economic forest and shrubbery in the project of con-version of cropland to forest of Hebei,Liaoning,Hubei,Hunan,Yunnan and Gansu provinces were as-sessed by using the distributed measurement method.The results show that the total ecological effect of ec-ological forest is the best,followed by that of forest and shrubbery which is the worst.The effect of ecologi-cal forest is the best for carbon fixation and oxygen release,nutrient accumulation,atmosphere environ-mental purification and biodiversity protection. The effect of shrubbery is the best for soil conservation.The effect of ecological forest is better than that of shrubbery for water conservation.

关 键 词：退耕还林工程 生态林 经济林 灌木林 生态效益 

分 类 号：S718.56[农业科学—林学]