摘要
探讨了第二代杉木人工林生物量的时空特征,运用Richards模型对杉木人工林生物量动态模拟, 结果为:W=272．745(1-e-0.126(t-1)1/1-0.559 。杉木人工林生长过程可分成4个阶段:0-5 a幼林成长阶段;5～ 8a干材速生阶段;8-25 a为成熟阶段;25 a后为过熟阶段。其采伐年限为25 a,密度为2475株/hm2的杉木可获得最大生物量272．745株／hm2。
The paper emphatically probes into spatlal-temporal charaeters of biornass in the secondary generation of Chinese fir plantation. The Richards model that is used to simulate plantation biornass dynamics is as follows：W=272.745（1-e^-0.126（t-1））^1/1-0.559 The growth process of Chinese fir can be divided into 4 stages： 0～5th year, the growth stage of young woods; 5～8th year, the pole stage; 8～25th year, the mature stage; after 25th year, over-mature stage. The maximum biomass can be 272.745 t/hm^2 when the cutting age is 25th year and the density is 2 475 trees/hm^2.
出处
《森林工程》
2006年第1期5-7,共3页
Forest Engineering
基金
国家重点野外站资助项目([2000]国科基便字第079号)科技部基础研究快速反应支持项目(2102)
关键词
杉木
时空特征
Richards模型
secondary generation of Chinese fir plantation
spatial-temporal characters
Richards Model
