%0 Journal Article
%T Simulation of three-dimensional green biomass of urban forests in Shenyang City and the factors affecting the biomass.<br>沈阳城市森林三维绿量模拟及其影响因子
%A LIU Chang-fu
%A HE Xing-yuan
%A CHEN Wei
%A ZHAO Gui-ling
%A XUE Wen-duo
%A <br>刘常富
%J 应用生态学报
%D 2008
%I 
%X Based on the fractal theory of forest growth, stepwise regression was employed to pursue a convenient and efficient method of measuring the three-dimensional green biomass (TGB) of urban forests in small area. A total of thirteen simulation equations of TGB of urban forests in Shenyang City were derived, with the factors affecting the TGB analyzed. The results showed that the coefficients of determination (R2) of the 13 simulation equations ranged from 0.612 to 0.842. No evident pattern was shown in residual analysis, and the precisions were all higher than 87% (alpha = 0.05) and 83% (alpha = 0.01). The most convenient simulation equation was ln Y = 7.468 + 0.926 lnx1, where Y was the simulated TGB and x1 was basal area at breast height per hectare (SDB). The correlations between the standard regression coefficients of the simulation equations and 16 tree characteristics suggested that SDB was the main factor affecting the TGB of urban forests in Shenyang.
%K 城市森林
%K 三维绿量
%K 逐步回归
%K 模拟
%K 沈阳
%K 沈阳
%K 城市
%K 森林
%K 三维绿量
%K 模拟方程
%K 影响因子
%K biomass
%K factors
%K City
%K Shenyang
%K forests
%K urban
%K green
%K 影响因素
%K 显示
%K 关系
%K 相关
%K 特征
%K 树木
%K 标准回归系数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=1D69FC5F3EF0570A109AE34811495962&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=B31275AF3241DB2D&sid=778972EBEFCE1267&eid=6EEBEF38C7DFC97E&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=32