豫南杉木经济成熟龄研究  

Study on the Economic Maturity of Chinese Fir in the Southern Area of Henan

作　　者：施新程[1] 谢文全[1] 

机构地区：[1]信阳师范学院城市与环境科学学院,河南信阳464000

出　　处：《安徽农业科学》2009年第23期11281-11283,共3页Journal of Anhui Agricultural Sciences

基　　金：河南省自然科学基金项目(0411033400)

摘　　要：利用Richards等经典方程拟合豫南杉木生长的基本模型,预估各立地指数级杉木蓄积量,并结合杉木生产经营的各经济指标,采用净现值和内部收益率分析杉木经济成熟龄。结果表明,8立地指数级以下不宜栽植杉木,10～14立地指数级豫南杉木经济成熟龄可确定为14～18年,随着立地指数的提高,经济成熟龄降低1～2年。Classic equations such as Richards equation was used to fit the fundamental model of Chinese fir in the southern area of Henan. The forest value of different site indexes was predicted. Net present value and internal rate of return as well as every economic index of managing of Chinese fir were adopted to analyse economic maturity of Chinese fir. The result showed that it was inadvisable to plant Chinese fir in the south of Henan under 8-site index. The economic mature age of Chinese fir from 10 to 14 in the southern area of Henan was from 14 to 18. The economic mature age of Chinese fir reduced 1 - 2 years when site index rose.

关 键 词：杉木 经济成熟龄 净现值 内部收益率 

分 类 号：S791.27[农业科学—林木遗传育种]