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当前位置: 首页 > 文章 > 择伐干扰后长白山区天然次生林物种多样性的变化 吉林农业大学学报 2006,28 (1) 35-39
Position: Home > Articles > Changes in Species Diversity of Natural Secondary Forests after Selective Cutting Disturbance in Changbai Mountain Journal of Jilin Agricultural University 2006,28 (1) 35-39

择伐干扰后长白山区天然次生林物种多样性的变化

作  者：
金永焕;李敦求;姜好相;刘军;李光华
单  位：
中国科学院应用生态研究所;吉林省长白山国家级自然保护区管理局;韩国汉城国立大学森林科学部
关键词：
红松阔叶林;择伐干扰;次生林;物种多样性;长白山
摘  要：
以长白山区红松阔叶林为研究对象,分析了不同年度进行中度择伐后形成的天然次生林恢复期间物种多样性的变化动态。研究结果表明:经择伐干扰后,天然次生林内乔木种丰富度和Shannon-Wiener多样性指数变化均较小,生态优势度指数在择伐后第5年时降低到原始林的0.6,第10年以后变化较小;在择伐后的28年间,灌木和草本植物的种丰富度和Shannon-Wiener多样性指数的变化过程相似,二者均在择伐后迅速降低,第5年以后开始恢复,经过15年后变化相对较小,生态优势度指数均在择伐后5年间迅速增大,此后10年间灌木的生态优势度指数迅速减小,15年以后恢复到干扰之前的状态,但草本植物的生态优势度下降较慢,经过28年恢复后仍比原始林大0.6。
译  名：
Changes in Species Diversity of Natural Secondary Forests after Selective Cutting Disturbance in Changbai Mountain
作  者：
JIN Yong-huan~1,Don-Koo lee~2,Ho-Sang kang~2,LIU Jun~3,LI Guang-hua~3 (1.Institute of Applied Ecology,CAS,Shenyang 110016,China;2.School of Forest Sciences & Forest Products,Seoul National University,151-460, Korea;3.Bureau of Management,National Nature Protection Zone of Changbai Mountain,Antu 133610,China)
关键词：
broad-leaved Korean pine forest;selective cutting disturbance;secondary forest;species diversity;Changbai mountain
摘  要：
The species diversity dynamics of secondary forest in broad-leaved Korean pine forest of Changbai mountain which has been restoring for 28 years after its being disturbed by selective cutting was studied.The results showed:(1) The species richness and Shannon-Wiener index of tree layer had little change after human disturbance,and the dominance index of tree layer decreased to about 0.6 times of virgin forest,it changed little after 10～15 years;(2) The changes of species richness and Shannon-Wiener index of shrub layer and herb layer were similar during 28 years' restoration.Both of them decreased after selective cutting and began to increase after having been restored for 5 years,and they changed little after 10～15 years;(3) The dominance index increased rapidly during 5 years and it decreased rapidly until 15 years later,then it restored to the state before disturbance.But the dominance index of herb layer decreased slowly and it was about 0.6 times larger of the natural forest after 28 years.

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