极小种群植物毛枝五针松的野生资源状况研究

2011年7～11月,在文山州西畴县、马关县和麻栗坡县采用社会学田野调查和植物学群落调查方法,对极小种群植物毛枝五针松种群进行了调查分析.结果表明,毛枝五针松野生资源稀少,仅有358株,木材蓄积量仅为22.8444m3.其中麻栗坡县是毛枝五针松的集中分布区,有335株；西畴县和马关县为零星分布区,分别有13株和10株.毛枝五针松对水湿和光照条件要求高,受到偷砍盗伐的严重威胁,对极小种群毛枝五针松的保育,不仅要加强对现有野生资源的保护管理,还需通过人工扩繁种苗,逐步恢复和扩大其种群数量和规模.

Study on Stock of Pinus wangii, an Extremely Small Population Species

Pinus wangii is an extremely small population species endemic to Yunnan province,in order to understand the stock and status of this species in Yunnan province,from July to November 2011,using the field investigation method of sociology and the plant community investigation approach,the wild resources of this species in Yunnan province were surveyed in three counties of Wenshan prefecture,namely Xichou,Maguan and Malipo.There were only 358 individuals were found,with the timber volume of 22.844 4 m3,Malipo county was the distribution center,335 individuals were distributed in this county.Xichou county and Maguan county were scattered distribution areas,with 13 individuals and 10 individuals respectively.Pinus wangii is a species highly dependent on water and light,and was severely threatened by illegal logging.Considering the protection of this species,more attention should be paid on protection of wild resources,and seedling raising was an important aspect for gradual restoration the population size.