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当前位置: 首页 > 文章 > 景东翅子树的居群结构及分布动态研究 西部林业科学 2011,40 (4) 41-47
Position: Home > Articles > Survey on Populations and Distribution of Pterospermum kingtungense in Jingdong County of Yunnan Province Journal of West China Forestry Science 2011,40 (4) 41-47

景东翅子树的居群结构及分布动态研究

作  者：
罗忠华;谢有能;卢宗菊;罗有勇;罗尧;王博轶
单  位：
云南林业职业技术学院;云南哀牢山无量山国家级自然保护区景东管理局
关键词：
景东翅子树;居群;数量;分布;结构;动态
摘  要：
2011年1～5月,采用访问调查与实地调查相结合的方法,在景东县对景东翅子树居群数量与分布进行调查。结果表明:景东县境内共分布有景东翅子树2 432株,分为9个居群,面积共计70.8 hm2,分布区涉及5个乡镇;高度1～5 m的景东翅子树植株数量占总株数的61.22%;景东翅子树的平均分布密度为34株/hm2;景东翅子树的平均分布海拔为1 440～1 530 m;有60株景东翅子树分布在无量山国家级自然保护区内,其余全部分布在自然保护区外;景东翅子树划分为8级立木径级结构,生长期分4个阶段,为下降型居群,居群数量不断减少,应采取措施加以保护。
译  名：
Survey on Populations and Distribution of Pterospermum kingtungense in Jingdong County of Yunnan Province
作  者：
LUO Zhong-hua1,XIE You-neng1,LU Zong-ju1,LUO You-yong1,LUO Yao1,WANG Bo-yi2(1.Jingdong Administrative Bureau,Ailaoshan and Wuliangshan National Nature Reserve,Jingdong Yunnan 676200,P.R.China; 2.Yunnan Forestry Technological College,Kunming Yunnan 650224,P.R.China)
关键词：
P.kingtungense;population;distribution;Jingdong county
摘  要：
From January to May,2011,the populations and distribution of Pterospermum kingtungense that distributed in Jingdong county of Yunnan province were surveyed through interview and fieldwork.Nine populations and 2 432 individuals were discovered in Jingdong County,the populations'area was 70.8 hm2 and 5 townships involved.Among all the individuals,61.22 % of the individuals had the height of 1～5 m and 77.96 % of the individuals with the DBH under 5 cm.The average value of plants with DBH higher than 2 cm was 6.33 cm.The average distribution density of P.kingtungense in Jingdong County was 34 individuals/hm2 and the average elevation was 1 440～1 530 m.There were only 60 individuals distributed in the Wuliangshan National Nature Reserve,many populations of P.kingtungense distributed in ecological public welfare forest region.The P.kingtungense could be divided into 8 diameter classes,and the growth could be classified into 4 stages,the population was a declining population.

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