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›› 1982, Vol. 18 ›› Issue (3): 266-278.

• 论文及研究报告 • 上一篇    下一篇

全国杉木(实生林)地位指数表的编制与应用

刘景芳 黄道年 何智英 童书振 杨世逸 张承芬 盛炜彤   

  1. 南方十四省(区)杉木栽培科研协作组
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1982-08-25 发布日期:1982-08-25

PREPARATION AND ITS APPLICANTION OF SITE-INDEX TABLE FOR CHINESE FIR

  1. The Cooperation Group of Chinese Fir
  • Received:1900-01-01 Revised:1900-01-01 Online:1982-08-25 Published:1982-08-25

摘要: 结合我国南方14省(区)杉木立地类型调查,在好、中、差不同立地条件的林分中,伐取平均优势木进行树干解析1077株.选用lgH=a+b(1/A)公式,分别各省(区)、产区求算出18条导向由线.采用b值标准差,将全国杉木划分三个生长类型,每个类型分别求算导向曲线经验式,并按树高相对值法,分别编制成地位指数表,同时确定了使用范围。

Abstract: Chinese fir is an important timber tree in subtropical region of China.The site-index tables are produced in order to predict the productivity and to give reference in choosing proper site of plantation.Data of 1077 stem analysis of dominant trees from different planting areas were collected,18 guiding curves according to log A=a+b 1/A model have been developed individually according to different planting areas.Three height-growth patterns with different shape of curve are divided on the basis standard deviation of b value of 18 curves.Then,three series of site-index curves are developed from three height growth pattern,and are transformed into 3 site-index tables.These tables are reliable and available for classification and evaluation of forest site within respective range of application