经营密度对蒙古栎次生林植物多样性的影响  

Effects of Management Density on the Plant Diversity of Quercus mongolica Secondary Forests

作　　者：孙楠 邢亚娟 SUN Nan(Forest Science Research Institute of Heilongjiang Province,Harbin 150081)

机构地区：[1]黑龙江省林业科学研究所,哈尔滨150081

出　　处：《林业科技》2018年第5期1-3,32,共4页Forestry Science & Technology

基　　金："十三五"国家重点研发计划项目"小兴安岭阔叶林抚育更新技术研究"(2017YFC0504102-01);"十三五"国家重点研发计划项目"蒙古栎节疤形成规律机器修控技术研究与示范"(2017YFD0600602-04)

摘　　要：以林口林业局红石林场蒙古栎次生林为研究对象,选取5个经营密度对蒙古栎次生林植物多样性的影响进行研究的结果表明:草本植物和灌木植物的种类随着经营密度的增大呈先增加后降低的趋势;草本植物和灌木植物的密度、盖度及平均高随着经营密度的增加而逐渐降低;经营密度600株/hm^2以下的林分,草本植物和灌木植物的群落复杂程度高,物种个体分配均匀;600株/hm^2的林分天然林下更新的种类和株数最多,平均高随着经营密度的增大而降低,建议蒙古栎次生林成熟林的合适经营密度为600株/hm^2。5 management densities were selected to study in Quercus mongolica secondary forests of Hongshi forest farm in Linkou forestry bureau.The result of the research on the effect of different management densities on the plant diversity of Quercus mongolica showed that:The number of species of herb and shrub increased first and then decreased with the increase of management density,the density,coverage and average height of herb and shrub plant decreased gradually with the increase of management density,the community complexity of herb and shrub plants in 600 N/hm2 operating density,is high,and the individual distribution of species was even,the number of updated species and plants in 600 N/hm2 operating density were the most,and the average height of the update decreased with the increase of business density.It was suggested that the suitable operating density of mature forest of Mongolian oak forest was 600 N/hm2.

关 键 词：经营密度 次生林 蒙古栎 植物多样性 

分 类 号：S756.4[农业科学—森林经理学] S758.58[农业科学—林学]