河南农业大学学报2019，Vol.53Issue(2)：187-192,6.
间伐强度对栎类天然次生林幼苗更新的影响
Effect of thinning intensity on seedling regeneration characteristics in natural secondary oak forests
摘要
Abstract
Four thinning intensities (control,weak: 21％,moderate: 35％, severe: 54％) in natural secondary oak forests in Tongbai Mountain area,Funiu Mountain area and Taihang Mountain area of Henan province were used to study the effect of different thinning intensity on the regeneration characteristics of seedlings. Shifts of regeneration density, regeneration frequency,and regeneration diversity of seedlings were measured after two years of forest thinning. The results showed that the regeneration densities and species numbers of the seedlings of the control,weak,moderate and severe thinning treatments were 3 750,6187,4612 and 4 925 ind·hm - 2 respectively,and species numbers of the seedlings of the above treatments were 3,3,8 and 16, respectively. The effective diversity indices of Shannon-Weinner diversity of seedlings of the control,weak,moderate and severe thinning treatments were 1. 95,1. 31,2. 65 and 5. 64, respectively. The study showed that the regeneration density under the weak thinning treatment was the highest,while the diversities of seedlings under the severe thinning treatment were the highest in natural secondary oak forests,which indicated that weak thinning could increase the natural regeneration density,while excessive thinning intensity would lead to a decrease in seedling numbers,but it would be beneficial to the maintenance of tree species diversity.关键词
间伐/幼苗/更新密度/更新频度/更新多样性Key words
thinning/seedling/regeneration density/regeneration frequency/regeneration diversity分类
农业科技引用本文复制引用
闫东锋,马瑞婷,杨庆培,胡林坡,牛梦鹤,王露露,贺文..间伐强度对栎类天然次生林幼苗更新的影响[J].河南农业大学学报,2019,53(2):187-192,6.基金项目
河南省科技发展计划项目(192102110060) （192102110060）
河南省高等学校重点科研项目(17B220001) （17B220001）
河南省科学研究计划项目(172400410241) （172400410241）
