<strike id="h8tz5"><label id="h8tz5"></label></strike>
    <progress id="h8tz5"></progress>
  1. <strike id="h8tz5"><listing id="h8tz5"></listing></strike>
      <strike id="h8tz5"><label id="h8tz5"></label></strike>
      首頁(yè) 園況介紹 科學(xué)研究 園林園藝 環(huán)境教育 黨建文化 紀(jì)檢監(jiān)察 信息公開(kāi) 簡(jiǎn)報(bào)年報(bào)
      首頁(yè) > 科學(xué)研究 > 研究成果 > 論文

      論文

      Disturbance of plateau zokor-made mound stimulates plant community regeneration in the Qinghai-Tibetan Plateau, China

      論文作者

      XIANG Zeyu1, Arvind BHATT1, TANG Zhongbin1, PENG Yansong1, WU Weifeng1,ZHANG Jiaxin1, WANG Jingxuan1, David GALLACHER2, ZHOU Saixia1*

      刊物

      JOURNAL OF ARID LAND 2021

      刊號(hào)

      ISSN 1674-6767

      摘要

      Mounds constructed by plateau zokors, which is widely distributed in alpine meadows significantly modified plant community structure. However, the variations of plant community structure under the disturbance of plateau zokor-made mound are less concerned. Therefore, we investigated the responses of plant community on zokor-made mound of different years (1 a and 3–4 a), and compared with undisturbed sites (no mound) in an alpine meadow in the eastern Qinghai-Tibetan Plateau (QTP),China. Species richness, coverage and Simpson diversity index were all significantly reduced by the presence of zokor-made mound, but plant heights were significantly increased, particularly in grasses and sedges. Several perennial forage species showed an increased importance value and niche breadth,including Koeleria macrantha, Elymus nutans and Poa pratensis. The effect of zokor-made mound on nicheoverlap showed that more intense interspecific competition produced a greater utilization of environmental resources. And this interspecific niche overlap was strengthened as succession progressed.The bare mound created by zokor burrowing activities provided a colonizing opportunity for non-dominant forage species, resulting in abundant plant species and plant diversity during the succession period. We concluded that presence of zokor-made mound was conducive to regeneration and vitality of plant community in alpine meadows, thus improving their resilience to anthropogenic stress.

       Disturbance of plateau zokor-made mound stimulates plant community regeneration in the Qinghai-Tibetan Plateau.pdf


      亚洲中文字幕在线精品一区,在线试看做受网站,天天做天天摸天天爽精品一区,国产成人愉拍免费视频

        <strike id="h8tz5"><label id="h8tz5"></label></strike>
        <progress id="h8tz5"></progress>
      1. <strike id="h8tz5"><listing id="h8tz5"></listing></strike>
          <strike id="h8tz5"><label id="h8tz5"></label></strike>