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李武峥,邓慧莲,杨婷,廖南燕,左静,张恒,李浩楠,梁士楚.防城季节性雨林优势种罗浮柿测树因子曲线回归与通径分析[J].广西科学院学报,2024,40(2):119-125. [点击复制]
- LI Wuzheng,DENG Huilian,YANG Ting,LIAO Nanyan,ZUO Jing,ZHANG Heng,LI Haonan,LIANG Shichu.Curve Regression and Path Analysis of Tree Measurement Factors of Dominant Species Diospyros morrisiana in Fangcheng Seasonal Rainforest[J].Journal of Guangxi Academy of Sciences,2024,40(2):119-125. [点击复制]
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| 防城季节性雨林优势种罗浮柿测树因子曲线回归与通径分析 |
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李武峥1, 邓慧莲2, 杨婷1, 廖南燕1, 左静1, 张恒2, 李浩楠2, 梁士楚2
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| (1.广西壮族自治区防城金花茶国家级自然保护区管理中心, 广西防城港 538021;2.广西师范大学生命科学学院, 广西桂林 541006) |
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| 摘要: |
| 为探究防城季节性雨林优势种罗浮柿(Diospyros morrisiana)的形态特征及其相关生长规律，本研究基于防城那山子季节性雨林1 hm2群落样地实测数据,对其测树因子进行曲线回归和通径分析。结果表明：罗浮柿株高(H)、胸径(D)和冠幅(W)之间存在极显著的相关关系；胸径-株高、胸径-冠幅、株高-冠幅的最优回归方程均为幂曲线模型，表达式分别为H=3.0248×D0.4501(R2=0.634)、W=0.6600×D0.5462(R2=0.613)和W=0.3147×H0.9108(R2=0.545)；胸径和株高对冠幅具有极显著正向作用,胸径对株高的影响大于其对冠幅的影响，其对冠幅的影响大于株高对冠幅的影响。因此，罗浮柿的株高和冠幅可通过测定其胸径来估算。 |
| 关键词: 罗浮柿 测树因子 曲线回归 通径分析 季节性雨林 |
| DOI：10.13657/j.cnki.gxkxyxb.20240709.003 |
| 投稿时间：2024-03-07修订日期：2024-04-16 |
| 基金项目:国家自然科学基金项目(32260283)，中央财政林业改革发展资金项目(GXZ2022-C3-002212-YZLZ)和2023年度广西大学生创新创业训练计划项目(S202310602177)资助。 |
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| Curve Regression and Path Analysis of Tree Measurement Factors of Dominant Species Diospyros morrisiana in Fangcheng Seasonal Rainforest |
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LI Wuzheng1, DENG Huilian2, YANG Ting1, LIAO Nanyan1, ZUO Jing1, ZHANG Heng2, LI Haonan2, LIANG Shichu2
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| (1.Guangxi Fangcheng Golden Camellia National Nature Reserve Management Center, Fangchenggang, Guangxi, 538021, China;2.College of Life Science, Guangxi Normal University, Guilin, Guangxi, 541006, China) |
| Abstract: |
| In order to explore the morphological characteristics and related growth rules of the dominant species Diospyros morrisiana in the seasonal rainforest of Fangcheng,this study was based on the measured data of 1 hm2 community sampling plots in the seasonal rainforest of Nashanzi,Fangcheng,and the tree measurement factors were analyzed by curve regression and path analysis.The results showed that there was a extremely significant correlation between plant height (H),diameter at breast height (D) and crown width (W) of D.morrisiana.The optimal regression equations of D and H，D and W，and H and W were all power curve models,and the expressions were H=3.0248×D0.4501(R2=0.634)、W=0.6600×D0.5462(R2=0.613) and W=0.3147×H0.9108(R2=0.545) respectively.The effect of D on plant height was greater than that of D on crown width,and the effect of D on crown width was greater than that of plant height on crown width.Therefore，the plant height and crown width of D.morrisiana can be estimated by measuring its diameter at breast height. |
| Key words: Diospyros morrisiana tree measurement factor curve regression path analysis seasonal rainforest |
