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当前位置: 首页 > 文章 > 闽粤栲人工促进天然更新林分的生长规律 福建林业科技 2017,44 (1) 16-20
Position: Home > Articles > Growth Dynamic of Castanopsis fissa Forest with Artificial Measures Promoting Regeneration in Fujian Province Journal of Fujian Forestry Science and Technology 2017,44 (1) 16-20

闽粤栲人工促进天然更新林分的生长规律

作  者：
郑双全
单  位：
福建省沙县官庄国有林场
关键词：
闽粤栲;人工促进天然更新;生长规律
摘  要：
在福建省三明市郊国有林场,以闽粤栲天然林、人工林分为对照,对闽粤栲人工促进天然更新林分(简称人促林)的生长过程进行分析。结果表明:与人工林比,人促林早期生长较慢,进入速生期较迟,但后续生长较快,且持续时间长;连年生长量与平均生长量相交时间,树高推迟0.5 a,胸径第1次相交时间推迟1 a,材积生长远未相交。25年生人工林的材积连年生长量与平均生长量虽然未相交,但从生长曲线分析,预计30年生左右出现相交,从高径生长分析,人工闽粤栲林有早衰现象。与天然林相比,人促林树高、胸径、材积生长规律基本一致,但总生长量较小,早期生长缓慢。人工促进天然更新培育闽粤栲林,营林投资成本低,有利于生态环境保育,而且可以维持较高的林分生产力,是一种生态省力型可持续经营模式。
译  名：
Growth Dynamic of Castanopsis fissa Forest with Artificial Measures Promoting Regeneration in Fujian Province
作  者：
ZHENG Shuangquan;Guangzhuang State Forest Farm;
关键词：
Castanopsis fissa;;artificial promotion of natural regeneration;;growth regularity
摘  要：
In the state-owned forest farm of Fujian Province Sanming suburb,with natural forest,Castanopsis fissa plantations were of Castanopsis fissa artificially promoted natural regeneration of the forests(referred to as promoting forest) analysis of the growth process. The results show that the artificial forest,forest promoting early growth slowly into the fast growing period is relatively late,but the subsequent rapid growth,and lasted for a long time; the annual growth amount and average growth of intersection time,tree height delayed 0. 5 a,first times the intersection delay 1 diameter a,volume growth is far from the intersection. The 25 years old plantation of the annual volume growth and average growth although not intersect,but from the growth curve analysis,is expected to 30 years or so appear to intersect,from height and diameter growth analysis,the phenomenon of premature artificial forest of Castanopsis fissa. Compared with the natural forest,promoting forests tree height,DBH and volume growth are basically the same,but the amount of growth of small,slow growth early. Artificial cultivation of natural regeneration of Castanopsis fissa forest silviculture,low investment cost,is conducive to ecological environment conservation,but also can maintain a high productivity of the forest sustainable management mode,is a kind of ecological energy saving.

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