摘要
本文对四川蒲江县马尾松天然林采伐年龄进行了研究。试验选定Richard生长模型为马尾松天然林的基本模型，建立了胸径、树高、材积与年龄的生长模型，编制出马尾松生长过程表与林分出材率表，用现行木材价格计算木材收入，采用指率法进行经济分析确定出经济成熟龄。经与实行多年的马尾松天然林采伐年龄相比，其采伐年龄推迟10年左右。
The cutting age of PIUNS MASSONIANA natural forest in Pujiangcounty of Sichnan Province was systematically studied. Richards function wasselected as the basic model for growth estimation. The growth fnnction ofdiametet at breast height, height of trees and volume were constructed with ageas variable. Yield table and merchantable volume table were established. Theincome of cut was calculated by current timber price. Comparing the cutting agedetermined by traditiollal method, this cutting age is delayed about 10 years.
出处
《四川农业大学学报》
CSCD
1996年第3期437-439,共3页
Journal of Sichuan Agricultural University
关键词
马尾松
生长模型
森林成熟
采伐年龄
PIUNS MASSONIANA
GROWTH MODEL
FOREST MATURITY
CUTTING AGE
