摘要
喀斯特石质山地封山育林 3～ 4年后 ,群落盖度平均增长 32 .8% ,乔木层高、径增长量最大可达 3.5 2 cm和 3cm;灌木层高、径增长量最大可达 1.5 1cm和 1.33cm。
The different community and their growth features of both before and after closing hillsides to facilitate afforestation were studied by the locative plots. The results showed that community coerage,height and diametre after 3～4 years to close hills were increased, the diversity index,evenness ecological dominance,richness were changed.The changes of community coverage and growth could be used as the estimated index of closing hillsides and planting trees.
出处
《林业科技》
北大核心
2001年第6期1-4,共4页
Forestry Science & Technology
关键词
封山育林
封育类型
效果
石质山地
Closing hillsides to facilitate afforestation
Types
Effect
