人工油松林直径分布规律研究  

Research on the Diameter Distribution Law of Pinus Tabulaeformis Plantation

作　　者：赵渺 Zhao Miao(Liaoning Provincial Forestry Investigation and Planning Monitoring Institute,Shenyang,Liaoning 110122,China)

机构地区：[1]辽宁省林业调查规划监测院,辽宁沈阳110122

出　　处：《绿色科技》2021年第19期136-139,共4页Journal of Green Science and Technology

摘　　要：指出了不论是人工林还是天然林,在未遭受到严重干扰并且经过长期的自然生长枯损与演替的情况下,林分内部许多特征因子,都具有一定的分布状态,而且表现出较为稳定的结构规律性,在测树学中称其为林分结构规律。林分结构包含着反映林分特征因子的变化规律,以及这些因子之间的相关规律。探讨了这些规律对森林经营技术、编制经营数表及林分调查的重要意义。以河北平泉地区30、40、50年生的人工油松林样地资料为依据,应用正态分布法拟合平泉人工油松林的直径分布规律作出了方程。研究结果表明:正态分布能对3个林龄的人工油松林进行很好的拟合。由此,可以将研究出的直径分布规律用于平泉地区人工油松林的经营管理中,为合理经营人工油松林提供了科学的理论依据。No matter the plantation or the natural forest,many characteristic factors,all have a certain distribution under the condition of not being seriously disturbed(such as the destruction of natural factors and artificial cutting)and long-term natural growth,withering and succession state,and show a relatively stable structural regularity,which is called the stand structural regularity in tree measurement.Therefore,the stand structure includes the changing rules of these factors and the correlation rules amang these factors.It is of great significance to study these laws for forest management technology,establishment of management table and forest stand investigation.Based on the data of 30,40 and 50-year-old Pinus tabulaeformis plantation in Pingquan area of Hebei Province,the diameter distribution law of Pinus tabulaeformis plantation in Pingquan was fitted by normal distribution method,and the equation was made.The results show that the normal distribution can be used to fit the three stand ages of Pinus tabulaeformis plantation well.Therefore,the diameter distribution law can be used in the management of artificial Pinus tabulaeformis in Pingquan area,which provides a scientific theoretical basis for the rational management of artificial Pinus tabulaeformis.

关 键 词：人工油松林 正态分布法 直径分布 

分 类 号：S758[农业科学—森林经理学]