广西科学院学报2024，Vol.40Issue(2)：119-125,7.DOI:10.13657/j.cnki.gxkxyxb.20240709.003
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
Curve Regression and Path Analysis of Tree Measurement Fac-tors of Dominant Species Diospyros morrisiana in Fangcheng Seasonal Rainforest
摘要
Abstract
In order to explore the morphological characteristics and related growth rules of the dominant spe-cies 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 measure-ment factors were analyzed by curve regression and path analysis.The results showed that there was a ex-tremely 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.关键词
罗浮柿/测树因子/曲线回归/通径分析/季节性雨林Key words
Diospyros morrisiana/tree measurement factor/curve regression/path analysis/seasonal rainfor-est分类
农业科技引用本文复制引用
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):119-125,7.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. （32260283）
