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Chinese Journal of Applied Ecology ›› 2018, Vol. 29 ›› Issue (11): 3521-3529.doi: 10.13287/j.1001-9332.201811.007

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Relationships between plant community and soil chemical factors in coastal saline area of Shandong, China

YIN De-jie, ZHANG Jie, JING Rui, DONG Li*   

  1. National Engineering Research Center for Floriculture/Beijing Laboratory of Urban and Rural Ecological Environment/College of Landscape Architecture, Beijing Forestry University, Beijing 100083, China
  • Received:2018-03-13 Online:2018-11-20 Published:2018-11-20
  • Contact: *E-mail: dongli@bjfu.edu.cn
  • Supported by:

    This work was supported by the Special Fund for Beijing Common Construction Project.

Abstract: To reveal the correlation between plant communities and soil chemical factors (pH, the total amount of soil soluble salt, TN, TP, SOM, K+, Na+, Ca2+, Mg2+, Cl-, SO42-, HCO3-) in Shandong coastal saline area, a field investigation of 81 samples was carried out and the chemical properties of the soil were analyzed. The results showed that a total of 85 species, 67 genera and 30 families of salt-tolerant plants were recorded. The top three dominant families were Compositae, Gramineae and Chenopodiaceae. The community could be divided into four types: Phragmites aus-tralis - Imperata cylindrical + Artemisia capillaris, Suaeda salsa + P. australis - A. capillaris + Kochia scoparia, P. australis - Typha orientalis + Apocynum venetum, P. australis - A. venetum. The CCA sequencing results showed that the soil total soluble salt and water-soluble ions were the key chemical factors affecting the distribution of salt-tolerant vegetation, followed by total nitrogen content. The community of P. australis - I. cylindrical + A. capillaris had richest species diversity among the four community types, and the resources of salt-tolerant plants were abundant. The species diversity of plant community showed a significant negative correlation with soil total soluble salts and water soluble salt ions content. The plant community diversity index would be reduced by the high saline soil.