[1]张春茹.河北省木兰林管局典型落叶松林分最优林分的研究[J].黑龙江农业科学,2015,(09):94-99.[doi:10.11942/j.issn1002-2767.2015.09.0094]
　ZHANG Chun-ru.Best Stands Study of Mulan Typical Larch Stands of Hebei Province[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(09):94-99.[doi:10.11942/j.issn1002-2767.2015.09.0094]
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河北省木兰林管局典型落叶松林分最优林分的研究

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2015年09 页码: 94-99 栏目: 出版日期: 2015-09-10
Title:
Best Stands Study of Mulan Typical Larch Stands of Hebei Province
文章编号:
1002-2767（2015）09-0094-06
作者:
张春茹
河北木兰围场国有林场管理局，承德 围场 068450
Author(s):
ZHANG Chun-ru
Mulan-Weichang Forestry Administration of Hebei Province,Chengde,Hebei 068450
关键词:
落叶松; 物种多样性; 近自然度
Keywords:
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分类号:
Ｓ791.22；S718.5
DOI:
10.11942/j.issn1002-2767.2015.09.0094
文献标志码:
A
摘要:
为了探究木兰围场落叶松的最优林分，对河北省木兰林管局典型落叶松林分物种多样性和近自然度的研究。结果表明：在乔木层树种组成较复杂程度及生物多样性丰富程度方面，样地D>样地C>样地B>样地A；灌木层多样性指数：样地B由于存在大量的白桦幼树，上层空间稀疏，易透光，有利于林下灌木的发育，灌木层物种多样性较为丰富，样地A的各项多样性指数最低。草本层物种多样性：样地B的各项指标最低，样地D物种多样性最大。根据径阶指数、更新幼苗数、胸径断面积、幼苗树种Shannon-Wiener指数、枯落物厚度、Pielou均匀度指数和群落顶极适应值等七项指标的标准化计算，并根据层次分析法对各项指标权重赋值，得出每块样地的近自然度，林分D（0.284 3）>林分B（0.256 2）>林分C（0.253 8）>林分A（0.241 4），林分D为接近自然林分，是最优的落叶松林分，可作为目标林分进行经营。
Abstract:
In order to explore the optimal larch hunting stand，the Mulan typical larch stands species diversity and nature closeness were studied.The results showed that:the composition of species in tree layer over the complexity and richness of biodiversity: Plot D>Plot C>Plot B>Plot A;shrub layer diversity index: due to the presence of a large plot of birch saplings of Plot B,the upper space was sparse,easy to light,conducive to the development of understory shrubs,the abundant shrub species was diversity,the diversity index of Plot A was minimum.The herb layer species diversity: the indicators of Plot B was minimum,Plot D was maximum.According to the standardized calculation of seven indicators including diameter class index,updating the number of seedlings,basal area,Shannon-Wiener index of seedling trees,litter thickness,Pielou index and fitness community climax,based on levels law of the index weight assignment,the nature closeness of each plot were achieved,Stand D (0.284 3)> Stand B (0.256 2)> Stand C (0.253 8)> Stand A (0.241 4),Stand D was closed to nature stand,which was optimal larch stand as a target stand for its operations.

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备注/Memo

收稿日期：2014-11-03

基金项目：河北省科技厅自然科学基金资助项目(1522-7652D)?
作者简介：张春茹（1975-），女，河北省围场县人，学士，高级工程师，从事林业管理工作。E-mail：927293733@qq.com。

更新日期/Last Update: 2016-07-26