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Bulletin of Botanical Research ›› 2022, Vol. 42 ›› Issue (5): 910-920.doi: 10.7525/j.issn.1673-5102.2022.05.022

• Physiology and Ecology • Previous Articles    

Ecological Stoichiometric Characteristics of C, N and P and Their Relationship with Soil Factors from Different Organs of the Halophytic Chenopodiaceae Plants in Hulunbuir

Yuhang SU1,2, Xiaoqian SONG1,2, Jingwen ZHENG1,2, Zhonghua ZHANG1,2(), Zhonghua TANG1,2   

  1. 1.Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University,Harbin 150040
    2.College of Chemistry,Chemical Engineering and Resource Utilization,Northeast Forestry University,Harbin 150040
  • Received:2022-02-15 Online:2022-09-20 Published:2022-09-15
  • Contact: Zhonghua ZHANG E-mail:en_cn@126.com
  • About author:SU Yuhang(1997—),female,master degree student,mainly engaged in research on salt-tolerant plants.
  • Supported by:
    Science and Technology Basic Resources Survey Project(2019FY100500)


The lack of available nutrients is one of the main factors limiting the biomass of saline plants, the largest group in the saline environment is Chenopodiaceae plants, and the overall nutritional strategy of Chenopodiaceae plants is of great significance to the breeding in saline-alkali soil and agricultural development. four typical Chenopodiaceae plants in Hulunbuir were used as materials, including Suaeda glaucaChenopodium acuminatumSalsola tragus and Bassia dasyphylla. In order to reveal the C, N, P stoichiometric characteristics of Chenopodiaceae plants and the relationship with soil factors, the ecological stoichiometric characteristics of carbon(C), nitrogen(N) and phosphorus(P) in different organs were analyzed respectively. The results showed: ①Both the stem N/P and leaf N/P of Chenopodiaceae plants were greater than 16, and the root N/P of Chenopodiaceae plants was less than 14; The content of C and N in each organ had a significant correlation, root C content>stem C content>leaf C content, The N content of each organ showed the order of leaf N content>stem N content>root N content, it showed that the N element had a good transfer efficiency from roots, stems to leaves. ②The content variability of C, N and P in various organs was compared, and P had the largest coefficient of variation. There was a significant positive correlation between leaf P and leaf N, stem P content also had a significant positive correlation with leaf N, root N content, and root P content had a significant negative correlation with leaf N and root N content. It indicated that the N and P elements had a strong coordination relationship in leaves and roots. ③The RDA ranking indicated that Soil P was the main factor affecting plant leaf stoichiometry, soil K was the main factor of stem stoichiometry variation, and soil N was the main factor of root stoichiometry variation. This study found that Chenopodiaceae plants promoted the accumulation the coordination of N, P in leaf, and reduced the impact on soil P and N restrictions, and showed great significance to saline-alkaline soil management.

Key words: saline-alkali land, Chenopodiaceae, ecological stoichiometry, soil factors

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