人为干扰对森林群落及生物多样性的影响-湖北民族学院团队科研协作.PDFVIP

33 3 Vol.33　No.3 2 0 0 6 9 Jour of Fujian Forestry Sci and Tech Sep., 2 0 0 6 艾训儒1, 2 (1.北京林业大学资源与环境学院, 北京 100083; 2.湖北民族学院生物科学与技术学院, 湖北恩施445000) :, , , 3 , , , 。2 , , “ ”, 。, , , 200 m , 100 m 。 :;; :S718.54　　　:A　　　:1002-7351(2006)03-0005-05 Effects of Anthropogenic Disturbance on Forest Community and Biodiversity AI Xun-ru1,2 (1.School of Resources and Environment, Beij ing Forestry University .Beij ing, 100083, China; 2.School of Biological Science and Technology, H ubei Institute of Nationlities, Enshi, H ubei 445000, China ) Abstract:Effects of anthropogenic disturbance on forest community and biodiversity ere discussed in this paper.The results sho ed that the effectsof anthropogenic disturbance on species diversity ere obvious.The diversity index descended hen the dis- turbance index of the communities as above 3 degress,the more strong the disturbance as, the lo er diversity index as.With the moderate disturbance of 2 degrees of the community, the diversity index value increased, hich accorded ith “Intermediate Disturbance Hypothesis” of ecology.But the diversity index of broad-leaved forests of dominant group species is high value.The types and quantity of community along the gradient elevation is obvious because of anthropogenic disturbance.The typesof commu- nity reduced in population collectivity community.The vertical range of anthropogenic disturbance is 200 m up to river vale in lo - land and 100 m up and do n to the population collectivity community in highland. Key words:anthropogenic disturbance;forest community;biodiversity;population collectivity community [1,2] 　　, 。 , ()。 ,, [2～8] 。, 。 , 。 1　 ,109°33′E、29°58′N