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作 者:魏忠平[1] 刘阳[1] 王婷[2] 刘红民[1] 魏文俊[1] 于景华[3] 王骞春[1]
机构地区:[1]辽宁省林业科学研究院,辽宁沈阳110032 [2]辽宁工程技术大学,辽宁阜新123000 [3]中国科学院沈阳应用生态研究所,辽宁沈阳110016
出 处:《中南林业科技大学学报》2016年第4期68-72,共5页Journal of Central South University of Forestry & Technology
基 金:辽宁省农业攻关及成果产业化项目(2014207011);国家林业公益性行业专项(200904064)
摘 要:对辽宁老秃顶子国家自然保护区内的6种典型森林群落的生物多样性进行研究,结果表明:同一森林群落中,人工落叶松林和岳桦林的物种丰富度指数表现为草本层>乔木层>灌木层,其他群落各层的物种丰富度指数则是草本层>灌木层>乔木层;人工落叶松林、人工红松林和岳桦林群落中的Simpson指数和Shannonwiener指数的变化规律为乔木层<灌木层<草本层,其他群落的多样性指数则无明显规律;除杂木林外,均匀度指数在各群落中的高低顺序是乔木层<灌木层<草本层;均匀度指数与Shannon-wiener指数具有相似的变化规律。6 kinds of typical forest communities such as Pinuskoraiensis plantation, Larixolgensis plantation, Quercusmongolica plantation, Betulaermaniinatural forest, Picea-Abiesforest and shrub forest, are selected for biodiversity studying in Laotudingzi national natural reserve in Liaoning province. The results show that, richness index for herb layer in Larixolgensis plantation and Betulaermanii natural forest are the largest, the tree layer are the middle one, and the shrub layer are the last one; richness index for herb layer in other forests are the largest, followed by the shrub layer, and the tree layer are the smallest. Simpson index and Shannon-wiener index of herb layer in Pinuskoraiensis plantation, Larixolgensis plantation and Betulaerrnanii natural forest are the largest, followed by shrub layer and tree layer, however, Simpson index and Shannon-wiener index in other forests have no obvious characteristics; apart from shrub forest, evenness index in other forests are all in accordance with the following traits: tree layer 〈 shrub layer 〈 herb layer; evenness index and Shannon-wiener index have similar variations.
关 键 词:典型森林群落 生物多样性 老秃顶子国家自然保护区
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