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林业资源管理 ›› 2019›› Issue (4): 69-73.doi: 10.13466/j.cnki.lyzygl.2019.04.010

• 科学研究 • 上一篇    下一篇

不同立地类型华北落叶松人工林冠幅与胸径关系研究

张冬燕1,2(), 王冬至1(), 范冬冬3, 张健东3, 李大勇4   

  1. 1.河北农业大学 林学院,河北 保定 071000
    2.河北农业大学 商学院,河北 保定071000
    3.河北省塞罕坝机械林场,河北 围场 068450
    4.河北省木兰围场国有林场管理局,河北 围场 068450
  • 收稿日期:2019-05-14 修回日期:2019-07-21 出版日期:2019-08-28 发布日期:2020-10-20
  • 通讯作者: 王冬至
  • 作者简介:张冬燕(1979-),女,河北人,讲师,在读博士,主要从事森林可持续经营研究。Email: zhdys@163.com
  • 基金资助:
    河北省教育厅资助科研项目(QN2018125)

Relationship Between Crown Width and DBH of Larix pricipis-rupperchtii with Different Site Types

ZHANG Dongyan1,2(), WANG Dongzhi1(), FAN Dongdong3, ZHANG Jiandong3, LI Dayong4   

  1. 1. College of Forestry of Hebei Agricultural University,Baoding,Hebei 071000,China
    2. College of Business of Hebei Agricultural University,Baoding,Hebei 071000,China
    3. Saihanba Mechanical Forest Farm of Hebei Province,Weichang,Hebei 068450,China
    4. Mulan Weichang State-owned Forest Farm Administration Bureau of Hebei Province,Weichang,Hebei 068450,China
  • Received:2019-05-14 Revised:2019-07-21 Online:2019-08-28 Published:2020-10-20
  • Contact: WANG Dongzhi

摘要:

以河北省塞罕坝机械林场华北落叶松人工林为研究对象,利用155块标准地(30 m×30 m)调查数据,基于因子分析法和聚类分析法,确定影响华北落叶松人工林冠幅生长主要立地因子,利用主要立地因子划分立地类型,并构建不同立地类型华北落叶松人工林冠幅预测模型。结果表明:海拔、坡度和坡向是影响华北落叶松人工林冠幅生长的主要立地因子,并划分为高海拔和低海拔两个立地类型组。不同立地类型组最优冠幅预测模型分别为:高海拔,CW=-2.5972+0.6211D-0.0098D 2;低海拔,CW=[D/(4.9823+0.2059D)] 2。高海拔组与低海拔组:决定系数R 2分别为0.9795和0.9834,绝对误差(Bias) 分别为0.0001和0.8259、均方根误差(RMSE)分别为0.0019和0.65718,通过检验表明不同立地类型组冠幅模型预测精度均较高,可为华北落叶松人工林科学经营提供科学依据。

关键词: 立地类型, 冠幅预测模型, 人工林, 华北落叶松, 胸径

Abstract:

The optimal crown amplitude prediction model for Larix principis-rupprechtii plantation was constructed to provide scientific reference for studying its growth and development rules,site quality assessment and productivity prediction.In this study,the plantation of Larix principis-rupprechtii in Saihanba mechanical forest farm in Hebei province was used as the research object.Data from 155 sample plots(30 m by 30 m) were used to classify site types based on the factor analysis and cluster analysis.Constructing crown predication model of Larix principis-rupprechtii plantation on different site types.The results showed that altitude,slope and aspect were the main site factors affecting the crown growth of Larix principis-rupprechtii plantations,and the site types were classified into two ones.According to the determination coefficient R 2 of 0.9795 and 0.9834,respectively,Bias of them were respectively 0.0001and0.8259,and RMSE of them were respectively 0.0019 and 0.65718,a site prediction model of the crown amplitude was determined,and a comprehensive comparative analysis of high altitude CW=-2.5972+0.6211D-0.0098D 2and low altitude CW=[D/(4.9823+0.2059D)] 2 equation predicts the growth of Larix principis-rupprechtii plantation in Saihanba mechanical forest farm,which provides a theoretical basis for the scientific management of Larix principis-rupprechtii plantation.

Key words: site type, crown prediction model, plantation, Larix principis-rupprechtii, DBH

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