摘要
通过对三明市属国有林场马尾松速生丰产标准地的分析，依频数分布状况，利用Ｘ２检验法和半峰宽理论，提出了Ⅱ、Ⅲ、Ⅳ龄级的合理经营密度区间分别为２１００～３４５０株·ｈｍ－２、１３５０～２２５０株·ｈｍ－２、９００～１５００株·ｈｍ－２。
It was raised that the rational management
density for age class, and was 21003450 trees/hm2,13502250 trees/hm2 and 9001500 trees/hm2,
respectively by means of analyzing the fastgrowing and high-yielding sample plots of Pinus
massoniana on national forest farms subordinate to Sanming City,according to the frequency
distribution status and through using the x2 test method and the half-peak width theory.
出处
《福建林业科技》
北大核心
1999年第2期55-58,共4页
Journal of Fujian Forestry Science and Technology
关键词
马尾松
龄级
分布检验
合理密度
Pinus massoniana
Age class
Distribution test
Rational density
