| 西北半干旱区湿地生态系统植物群落多样性的研究 |
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| 引用本文： | 王海星,张克斌,曹永翔,杨秀莲.西北半干旱区湿地生态系统植物群落多样性的研究[J].干旱区资源与环境,2010(5). |
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| 作者姓名： | 王海星 张克斌 曹永翔 杨秀莲 |
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| 作者单位： | 北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室; |
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| 基金项目： | 国家林业局荒漠化定位监测项目;;国家自然科学基金(30771764)资助 |
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| 摘 要： | 为了研究西北半干旱区湿地植被多样性差异,以宁夏盐池县四儿滩湿地为例,采用样线法,从湿地中央辐射向四个方向,布设东、南、西、北四条样线,共取样方88个,主要调查植被的盖度、高度、频度、株数等,计算每种植被的重要值,运用SPSS软件进行聚类,分析了该湿地的植被组成和群落特征。采用Shannon-Wiener指数、Simpson指数、群落均匀度指数和丰富度指数对植物多样性进行研究分析,并结合多年的气象数据,分析结果为:碱蓬和盐爪爪群落为湿生带的代表群落,白刺和沙鞭群落与芨芨草、猪毛蒿和苦豆子群落为交错带的代表群落,阿尔泰狗哇花、赖草和砂兰刺头群落为旱生带代表群落;四儿滩湿地四条样线之间植被多样性的差异主要受四儿滩湿地本身的地理环境和人类生产活动的影响。年际植被多样性差异主要受月降雨量分配的影响。
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| 关 键 词： | 湿地 植被多样性 植被群落 降雨量 重要值 |
Plant community diversity of wetland ecosystem in a semi-arid region of Northwestern China |
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| WANG Haixing,ZHANG Kebin,CAO Yongxiang,YANG Xiulian.Plant community diversity of wetland ecosystem in a semi-arid region of Northwestern China[J].Journal of Arid Land Resources and Environment,2010(5). |
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| Authors: | WANG Haixing ZHANG Kebin CAO Yongxiang YANG Xiulian |
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| Institution: | College of Soil and Water Conservation;Soil and Water Conservation Key Lab.Of Ministry of Education;Beijing Forestry University;Beijing 100083;P.R.China |
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| Abstract: | In order to study plant diversity differences in a semi-arid region of northwestern China,taking Siertan Wetland,Yanchi County,Ningxia Hui Autonomous Region as example,using sample line approach,four line transects about east,south,west and north were set up in four directions from central wetland,88 sample plots were investigated in the four sample line,mainly investigated the frequency of occurrence,height,coverage,biomass etc,to calculate the important value of each vegetations.With the help of the SPSS1... |
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| Keywords: | wetland plant diversity vegetation community rainfall important value |
| 本文献已被 CNKI 等数据库收录！ |
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