[1]胡静杉,铁牛*. 兴安落叶松与白桦混交林合理经营密度研究[J].西北林学院学报,2021,36(2):180-185.[doi:10.3969/j.issn.1001-7461.2021.02.26]
　HU Jing-shan,TIE Niu*. Rational Operating Density of Mixed Forest of Larix gmelinii and Betula platyphlla[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(2):180-185.[doi:10.3969/j.issn.1001-7461.2021.02.26]
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 兴安落叶松与白桦混交林合理经营密度研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第2期
页码:
180-185
栏目:
出版日期:
2021-03-31

文章信息/Info

Title:
 Rational Operating Density of Mixed Forest of Larix gmelinii and Betula platyphlla
文章编号:
1001-7461(2021)02-0180-06
作者:
 胡静杉; 铁牛*
 （内蒙古农业大学 林学院，内蒙古 呼和浩特 010019）
Author(s):
 HU Jing-shan; TIE Niu*
 (Inner Mongolia Agricultural University,Forestry College of Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia,China)
关键词:
 ; 针阔混交林; 半峰宽原理; 林分最大密度模型; 合理经营密度; 森林经营
Keywords:
 ; mixed forest;  peak width at half height;  maximum stand density model;  optimum density; forest management
分类号:
S757
DOI:
10.3969/j.issn.1001-7461.2021.02.26
文献标志码:
A
摘要:
 为确定兴安落叶松与白桦混交林的合理经营密度，运用半峰宽原理计算小、中、大不同径级的林分合理经营密度。结果表明：1）利用胸径与冠幅的相关关系，拟合发现白桦以线性函数效果最好，而兴安落叶松以二次函数效果最好。2）建立不同径级层林分的最大密度模型，通过拟合发现各径级胸径与最大林分密度以指数函数效果最佳。3）通过半峰宽公式计算出小、中、大径级层林分合理经营密度区间分别为0.434~1.336、0.725~2.057 Nmax和0.645~1.469 Nmax，最小到最大合理经营密度株数配比在5∶3∶2、6∶3∶1、7∶2∶1等比例之间变化。
Abstract:
 In order to determine the reasonable management density of mixed forest of Larix gmelinii and Betula platyphlla,the principle of peak width at half height was adopted to calculate the reasonable management densities of the stands with different diameter classes (small,medium,and large).The results showed that 1)by using the correlationship between the diameter at breast height (DBH) and crown width,linear function was suitable to simulate B.platyphlla,while quadratic function was the best choice to simulate L.gmelinii.2) The maximum density models for the stands with different diameter classes were established.It was found by simulation that exponential function was most suitable.3) The reasonable management densities of the stands with different diameter classes that were calculated by the formula of peak width at half height for small diameter class ranged from 0.403-1.336 Nmax,0.725-2.057 Nmax for medium diameter class,and 0.645-1.469 Nmax for large diameter class.The proportions between the small-,medium-,and large-diameter trees varied among 7∶2∶1,6∶3∶1,and 5∶3∶2.

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备注/Memo

备注/Memo:
 收稿日期：2020-06-05修回日期：2020-06-21
基金项目：大兴安岭火烧及采伐迹地幼苗更新和植被恢复影响机制及抚育技术（2017YFC0504003-2)；大兴安岭白桦次生林生态修复关键技术研究与示范（2020GG0067）。
作者简介：胡静杉，硕士在读。研究方向：森林经营及可持续发展。E-mail：736028346@qq.com
*通信作者：铁牛，博士，教授，博士生导师。研究方向：森林经营及可持续发展。E-mail：wangtieniu@126.com
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