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Journal of Desert Research ›› 2021, Vol. 41 ›› Issue (4): 23-33.DOI: 10.7522/j.issn.1000-694X.2021.00029

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Types and characteristics of plant communities in the Otingdag Sandy Land

Danhui Qi1,4(), Hongxiao Yang5, Qi Lu1,2, Honghao Gan3, Jianmin Chu3()   

  1. 1.Institute of Desertification Studies /, Chinese Academy of Forestry,Beijing 100091,China
    2.Experimental Center of Desert Forestry /, Chinese Academy of Forestry,Beijing 100091,China
    3.Research Institute of Forestry, Chinese Academy of Forestry,Beijing 100091,China
    4.College of Ecology and Environment,Southwest Forestry University,Kunming 650224,China
    5.College of Resources and Environment,Qingdao Agricultural University,Qingdao 266109,Shandong,China
  • Received:2020-12-21 Revised:2021-03-09 Online:2021-07-27 Published:2021-07-27
  • Contact: Jianmin Chu

Abstract:

Vegetation in the Otingdag Sandy Land plays an important role in maintaining the desert-grassland ecosystem stability, promoting ecological security of the Beijing-Tianjin-Hebei region. Due to different water conditions, the vegetation in the Otingdag Sandy Land has obvious zonality from the east to the west, and the species composition and community structure are obviously different. On the basis of field survey, the vegetation types of the Otingdag Sandy Land under different precipitation conditions were classified, and the species composition and diversity characteristics of the community under different water conditions were analyzed. The results showed that: (1) There were abundant vegetation types in the Otingdag Sandy Land, including 5 vegetation type groups, 12 vegetation (sub) types and 27 vegetation groups, which has obvious zonal characteristics. (2) There are 256 species of vascular plants in 46 families, 149 genera, and more than 75% of them are herbaceous plants. (3) The community diversity varies greatly from east to west. The dominant families in the middle and east side are Asteraceae, Poaceae, Fabaceae, while the dominant families in the west side are Amaranthaceae, Poaceae. The results can provide basic data for vegetation protection and utilization in the Otingdag Sandy Land.

Key words: Otingdag Sandy Land, community type, species composition, community characteristics

CLC Number: