云南阔叶林林分系统状态的再认识  

Recongnition on System Status of Broadleaved Forest Stand in Yunnan Province

作　　者：杨永祥[1] 张裕农[1] 

机构地区：[1]云南省林业科学院,云南昆明650204

出　　处：《西部林业科学》2011年第1期83-86,共4页Journal of West China Forestry Science

摘　　要：通过论述地史时期的森林变迁,认为"云南阔叶林林分系统"是"随机变量序列",遵守无后效性的马尔科夫过程。用马尔科夫过程描述云南阔叶林林分系统存在与演变的结果表明,云南阔叶林林分系统是1个随机过程,具有无后效性和时齐性;云南阔叶林林分系统的适生分布区域为海拔400～2800m的地带,实测资料将其划分为10个"子系统",10个"子系统"的转移概率可把"云南阔叶林林分系统"由状态Ei经过10次转移到达状态Ej的概率反映出来。Through discussing the forest change in geologic period,the authors made a point that the stand system of broadleaved forests in Yunnan province was random variables sequences,which was in comply with the Markov process.Using the Markov process to describe the existence and evolution of stand system of broadleaved forests in Yunnan province,it was found that the studied stand system was a random process,characterized by non-aftereffect and timehomogeneous.The suitable elevation for distribution of broadleaved forests in Yunnan was from 400 m to 2800 m,could be divided into 10 sub-systems.The transition probability of 10 sub-systems could reflect the probability of Ei to Ej through 10 times of status transition.

关 键 词：云南 阔叶林 林分系统状态 转移概率 

分 类 号：S792[农业科学—林木遗传育种]