| 陇东董志塬植被生态现状及评价 |
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| 引用本文： | 梁明易,刘谞承,曾嘉强,汪涛.陇东董志塬植被生态现状及评价[J].生态科学,2010,29(4). |
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| 作者姓名： | 梁明易 刘谞承 曾嘉强 汪涛 |
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| 作者单位： | 环境保护部华南环境科学研究所,广州,510655 |
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| 基金项目： | 中国石油庆阳石化分公司300万吨级搬迁改选集中加工项目 |
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| 摘 要： | 调查了甘肃省庆阳市董志塬的自然植被,结果表明:董志塬主要自然群落类型包括3个植被型,4个植被亚型,14个群.共记录植物33科65属165种,以菊科(Compositae)、禾本科(Gramineae)、豆科(Leguminosae)、蔷薇科(Rosaceae)居多.塬内各植物群落生物量处于"Va～Ⅱ"水平,其中森林群落"Ⅲ～Ⅱ"、灌丛、草原群落"Va～Ⅳ";生长量处于"Vb～Ⅱ",其中森林"Ⅲ～Ⅱ"、灌丛群落"Ⅳ～Ⅲ"、草原"Vb～Ⅲ";物种量处于"Va～Ⅲ"水平,其中森林和灌丛群落"Va～Ⅳ"、草原"Ⅳ～Ⅲ";群落郁闭度处于"Ⅳ～Ⅱ"水平,其中森林和灌丛为"Ⅳ～Ⅱ"、草原"Ⅳ～Ⅲ";群落结构度处于"Ⅳ～Ⅰ"水平,其中森林植被"Ⅱ～Ⅰ"、灌丛群落"Ⅳ～Ⅱ"、草丛群落"Ⅳ～Ⅲ".综合各群落盖度、物种量、生物量、生长量、群落结构等5项指标进行评价,董志塬内各天然植被群落类型综合评价等级为"Ⅳ～Ⅱ"的水平,其中森林群落综合水平均为"Ⅲ～Ⅱ",灌丛群落和草原群落处于"Ⅳ～Ⅲ"水平.
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| 关 键 词： | 董志塬 植被生态 生态评价 |
The investigation and evaluation of the natural vegetation in Dongzhi Plateau,easten Guansu Province |
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| LIANG Ming-yi,LIU Xu-cheng,ZENG Jia-qiang,WANG Tao.The investigation and evaluation of the natural vegetation in Dongzhi Plateau,easten Guansu Province[J].Ecologic Science,2010,29(4). |
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| Authors: | LIANG Ming-yi LIU Xu-cheng ZENG Jia-qiang WANG Tao |
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| Institution: | LIANG Ming-yi,LIU Xu-cheng,ZENG Jia-qiang,WANG Tao South China Institute of Environmental Science.MEP,Guangzhou 510655,China |
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| Abstract: | The natural vegetation was investigated in October 2006 in Dongzhi Plateau,Qinyang city,Gansu province.Based on the analysis of 23 sample plots in Dongzhi Plateau,the natural vegetation can be divided into 3 vegetation types,4 vegetation subtypes and 14 formations,165 species were recorded belonging to 65 genera in 33 families.The comprehensive index for evaluating the natural vegetation were integrated with 5 indices including coverage,species scalar,biomass,growth and structure characters,which could be g... |
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| Keywords: | Dongzhi Plateau Vegetation Ecological assessment |
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