摘要
在公益林区布设固定样地,定期、定点对公益林林木材积生长率进行调查,结果表明,2010年与2007年相比较,样地1、样地2、样地3、样地4、样地5的活立木材积净生长量分别为0.642 8 m3、0.641 9 m3、0.952 6 m3、1.179 4 m3、0.237 4 m3、3.627 1 m3,生长率分别为12.80%、4.73%、8.12%、3.87%、1.52%。对公益林进行有效管护,可以使林分蓄积稳步增长,森林生态功能和经济效益逐年增强。
The stock growth was measured regularly in the permanent sample plots established in the public welfare forest.From 2007 to 2010,the net stock growth were 0.642 8 m3,0.641 9 m3,0.952 6 m3,1.179 4 m3,0.237 4 m3 and 3.627 1 m3 in plot 1,plot 2,plot 3,plot 4 and plot 5,and the growth rate were 12.8%,4.73%,8.12%,3.87% and 1.52%,respectively.The effective management could increase the stock steadily and enhance the ecological function and economic benefits of forest year by year.
出处
《吉林林业科技》
2012年第1期13-14,62,共3页
Journal of Jilin Forestry Science and Technology
关键词
公益林
林木材积
生长率
调查
public welfare forest
forest stock
growth rate
investigation
