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作 者:许丽[1] 张彩霞[1] 汪季[2] 许爱丽 周心澄[1] 焦居仁
机构地区:[1]北京林业大学水土保持与荒漠化防治教育部重点实验室,北京100083 [2]内蒙古农业大学生态环境学院,呼和浩特010019 [3]内蒙古五原县林业局,五原015100 [4]阜新市林业科学研究所,辽宁阜新123000
出 处:《干旱区资源与环境》2006年第6期178-182,共5页Journal of Arid Land Resources and Environment
基 金:"十五"国家科技攻关项目(2001BA510B01);"辽宁省阜新市退耕还林建设工程综合试验示范"项目联合资助
摘 要:采用野外调查和统计分析相结合的方法,对孙家湾矸石山阴坡不同排矸年限地段物种多样性进行研究。结果表明:在不同排矸年限地段,物种组成变化较大,由排矸初期的5科5种发展为后期的7科23种,并由一年生草本群落逐渐演变为榆树群落。物种综合多样性指数、物种丰富度指数和Pielou均匀度指数与排矸年限呈显著的正相关关系,而A latalo均匀度指数与排矸年限呈显著的负相关。The species diversity of different gangue piles at northern slope in Sunjiawan was studied with field investigation and statistical analysis. The results showed that obvious changes in species components of different gangue piles took place, from 5 species of 5 families at the initial stage of dumping gangue to 23 species of 7 families at the later stage , and from herb community to elm tree community. There was prominent positive correlation between diversity index, species richness index, Pielou evenness index and dumping years. However, there was prominent negative correlation between Alatalo evenness index and dumping years.
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