首页 | 本学科首页   官方微博 | 高级检索  
     


Line thinning promotes stand growth and understory diversity in Japanese cedar (Cryptomeria japonica D. Don) plantations
Authors:Hiroaki T. Ishii  M. Abdul Maleque  Shingo Taniguchi
Affiliation:(1) Graduate School of Science and Technology, Kobe University, Kobe 657-8501, Japan;(2) Bangladesh Agricultural Research Institute, Gazipur, Joydebpur, Bangladesh;(3) Forestry Technology Institute, Hyogo Prefectural Technology Center for Agriculture, Forestry and Fisheries, Asago, Japan;(4) Present address: Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan
Abstract:
We studied the effects of line thinning on stand structure, microclimate and understory species diversity of two Cryptomeria japonica D. Don plantations in south-central Japan. In each of two study sites we compared stand structure between the thinned stand and an adjacent unthinned stand and found that line thinning increased the growth rate of residual trees such that stand basal area may recover within 10 years after thinning. In the thinned stand, more open canopy conditions resulted in higher maximum temperatures on the forest floor during the early growing season than in the unthinned stand. The thinned stand had greater understory plant species richness and biomass than the unthinned stand. This study suggested that line thinning could potentially enhance biodiversity while simultaneously increasing tree-growth rates in overstocked Cryptomeria japonica plantations.
Keywords:Biodiversity  Forest management  Silviculture  Variable retention thinning
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号