Acta Agrestia Sinica

›› 2011, Vol. 19 ›› Issue (2): 202-206.DOI: 10.11733/j.issn.1007-0435.2011.02.004

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Grassland Flora and Spatial Distribution of Plant Diversity in Hui River National Nature Reserves

DU Guang-ming1,2, SHEN Xiang-qun1, YANG Zhi-ming2, LÜ Shi-hai3, CHANG Xue-li4, YE Sheng-xing3   

  1. 1. College of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning Province 110161, China;
    2. College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, China;
    3. Institute of Ecology, Chinese Research Academy of Environmental Science, Beijing 100012, China;
    4. College of Geography and Planning, Ludong University, Yantai, Shandong Province 264025, China
  • Received:2010-11-25 Revised:2011-02-15 Online:2011-04-15 Published:2011-04-15

辉河国家自然保护区草地植物区系及多样性空间分布研究

杜广明1,2, 沈向群1, 杨智明2, 吕世海3, 常学礼4, 叶生星3   

  1. 1. 沈阳农业大学园艺学院, 辽宁, 沈阳, 110161;
    2. 黑龙江八一农垦大学动物科技学院, 黑龙江, 大庆, 163319;
    3. 中国环境科学院生态环境研究所, 北京, 100012;
    4. 鲁东大学地理与规划学院, 山东, 烟台, 264025
  • 通讯作者: 沈向群,E-mail:shenxiangqun@sohu.com
  • 作者简介:杜广明(1963- ),男,内蒙古赤峰人,博士研究生,主要从事草地资源及观赏园艺研究,E-mail:dugmsy@163.com
  • 基金资助:
    国家环境保护公益性行业科研专项(200809125);黑龙江大庆市科技攻关项目(SGG2007-045)资助

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Abstract: The establishment of natural reserves is particularly important for protected species diversity and ecological environment.Spatial distribution status coupled with the management of grassland flora and species diversity contributes to significant nature reserves.To provide managing theory,the current flora and spatial distribution of plant diversity were investigated in Hui River National Reserves during July to August of 2009.Results show that there are 154 species of seed plants,belonging to 30 families,108 genera in the study area.The geographic composition of flora is simple predominant Cosmopolitan type.There is spatial heterogeneity of plant species in the researched grassland with xerophytic herbs as the dominant species.Plant species of grasslands initially increase then decrease from high latitude to low latitude.Longitudinally,plant species also show as increasing then decreasing from west to east as relates to altitude change.

Key words: Flora, Diversity, Spatial distribution, Protection zone, Grassland

摘要： 保护区的建立对于保护物种多样性,保护生态环境尤为重要。对保护区草地植物区系、物种多样性的空间分布现状及规律的研究有助于保护区的管理。于2009年7—8月,对辉河国家自然保护区草地植物区系及植物多样性空间分布现状进行了研究,以期为辉河国家自然保护区的管理实践提供理论依据。结果表明:研究区有种子植物154种,分属30科,108属;研究地区草地植物区系地理成分较为简单,以世界广布类型占主导地位,草地植物以旱生草本为主;研究区域草地植物种类存在空间异质性,从高纬度到低纬度,草地植物种类呈现先增加后减少的趋势;在经度方向,自西向东植物种类同样呈现先增加后减少的趋势,且这种变化趋势与海拔高度变化有关。

关键词: 植物区系, 多样性, 空间分布, 保护区, 草地

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