摘要
介绍一些重要的固氮植物及其代表种的固氮速度，结合长防林建设中存在的问题，认为生物固氮在长防林建设中具有如下的作用：１．增加长江流域的生物多样性；２．防止水土流失和病虫害侵入；３．缓解农林矛盾，增加生态稳定性；４．降低工程的风险性并提高广大群众的参与意识。
In the paper，some impo rtant nitrogen fixation trees and nitrogen fixingrates of some presentative specieses are introduced．In resolving some problems existing inthe construction o f Yangtze River conservation forest system，the roles that nitrogenfixation trees can play are identified as follows：1．increasing biodiversity in the Yangtzevalley，2； preventing soil erosion and infection of forest insect and disease，3．alleviatingthe confliction between forestry and agricuIture and increasing stability of ecology，4．re-ducing the riks of the program and encouraging participation of the local people.
出处
《西南林学院学报》
1996年第1期60-64,共5页
Journal of Southwest Forestry College
关键词
生物固氮
防护林
长江
Biological nitrogen fixation；Conservation forest system；Yangtze River
