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云冷杉天然针阔混交林合理经营密度研究

Zhang Mengtao Kang Xingang Du Zhi Wang Xinjie Yang Yingjun Wang Quanjun

山西农业大学学报（自然科学版）2019，Vol.39Issue(1)：3832-3838,7.
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山西农业大学学报（自然科学版）2019，Vol.39Issue(1)：3832-3838,7.DOI:10.13842／j.cnki.issn1671‐8151.201809058

云冷杉天然针阔混交林合理经营密度研究

Optimal stand‐density study of spruce‐fir forest in Changbai Mountain

Zhang Mengtao 1Kang Xingang 2Du Zhi 3Wang Xinjie 2Yang Yingjun 4Wang Quanjun4

作者信息

  • 1. College o f Forestry ,Shanx i A gricultural University ,T aigu 030801 ,China
  • 2. K ey L aboratory for Silv iculture and Conserv ation o f M inistry o f Education ,Beij ing Forestry University ,Beij ing 100083 ,China
  • 3. Central south Inventory A nd Planning Institute o f N ational Forestry and G rassland A dm inistration o f PR Changsha 410000 ,Chi‐na
  • 4. W angqing Forestry Bureau ,W angqing 133200 ,China
  • 折叠

摘要

Abstract

[Objective] Present study was proposed to establish optimal stand‐density models for spruce‐fir forest manage‐ment .[M ethods] Stand‐density models were developed by calculating crow n‐area and mean diameter at breast height (DBH ) of spruce‐fir mixed forest coupled with peak width at half height of forests to evaluate the range of optimal den‐sity of different diameter class layers in Changbai Mountain .[Results] T he results were shown that :(1) quadratic equa‐tion could be employed to determine the crow n‐area function of A bies nep horiep is ,Picea jezoensis ,and Pinus Koraien‐sis ,w hile deciduous species were evaluated accurately with linear equation ;(2) exponential equation was more fitting for the relationships between various diameter class layers and mean DBH ,however ,the range of determination coeffi‐cient was only 0.5～0.6 with significance index less than 0.05 ;(3) the ranges of optimal stand‐density of small ,medi‐um ,and large diameter class layers were determined as 0.403 Nmax ～ 1.619 N max , 0.523 Nmax ～ 1.754 Nmax , and 0.478 N max ～1.307 N max ,w hile the proportion of numbers of trees were 6∶3∶1 ,5∶3∶2 ,5∶4∶1 ,respectively .[Conclu‐sion] Frequency distribution of management indexes of spruce‐fir forest conformed to normal distribution .

关键词

云冷杉针阔混交林/合理经营密度/树冠面积方程/密度模型/半峰宽原理

Key words

Spruce‐fir mixed forest/Optimum density/Crown‐area function/Density model/Peak width of half height

引用本文复制引用

Zhang Mengtao,Kang Xingang,Du Zhi,Wang Xinjie,Yang Yingjun,Wang Quanjun..云冷杉天然针阔混交林合理经营密度研究[J].山西农业大学学报（自然科学版）,2019,39(1):3832-3838,7.

基金项目

山西农业大学科技创新基金项目"(2015YJ17) （2015YJ17）

山西省林业科技创新课题(201721) （201721）

山西农业大学学报（自然科学版）

OA北大核心CSTPCD

1671-8151

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