不同坡向对油松中龄林林下植物多样性的影响研究  

Different slope direction of Pinus tabulaeformis mid-maturation forest understory plant diversity of impact study

作　　者：曹运强[1] 崔立志[1] 郭敬丽[1] 巩建新 

机构地区：[1]河北省木兰围场国有林场管理局,河北围场068450

出　　处：《河北林果研究》2015年第1期51-56,共6页Hebei Journal of Forestry and Orchard Research

基　　金：河北省林业科学技术研究项目"木兰林区森林流域经营关键技术研究"(1305448)

摘　　要：采用样方法调查了不同坡向油松中龄林林下植物种类、数量及生长情况,通过对灌木层和草本层植物丰富度指数、多样性指数、均匀度指数等指标的计算,研究了油松中龄林林下植物多样性,结果表明,油松中龄林林下植物共有26科60属66种,不同坡向对林下植物结构和多样性均有影响,阴坡林下草本植物结构及多样性均好于阳坡,阳坡灌木层丰富度高于阴坡;光照强度和林下水分是影响林下植物的重要因素。With the quadrat method, the understory plant species, quantity and growth status of half-mature Pinus tabulaeformis forest stand on the different slopes were surveyed. Through the calculation of plant richness index, diversity index, evenness index index shrub layer and herb layer, the undergrowth plant diversity of half--mature Pinus tabulaeformis forest was studied, providing the theory basis for its plantation undergrowth vegetation con- struction and stable forest ecosystem establishment. The results showed that there are 26 families,60 genera,66 species and all of the slopes are supposed to affect the structure and diversity of undergrowth plants, and the undergrowth herb structure and diversity on the shady slope were better than those on the sunny slope, while the richness of shrub layer on the sunny slope was higher than that on the shady slope. Additionally, light intensity and water are the important factors influencing the undergrowth vegetation.

关 键 词：坡向 油松 中龄林 林下植物 多样性 

分 类 号：S718.5[农业科学—林学]