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Journal of Desert Research ›› 2025, Vol. 45 ›› Issue (3): 243-252.DOI: 10.7522/j.issn.1000-694X.2025.00157

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Plant diversity and community stability in different grassland types of Ningxia

Juan Ma1(), Weihong Zhang1, Yan Gong1, Jie Hu1, Zhipeng Liu1, Yanxia Pan2()   

  1. 1.Ningxia Environmental Monitoring Center,Yinchuan 750002,China
    2.Shapotou Desert Research and Experiment Station / State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
  • Received:2025-04-24 Revised:2025-05-03 Online:2025-05-20 Published:2025-06-30
  • Contact: Yanxia Pan

Abstract:

This study systematically analyzes the plant diversity and community stability of grassland ecosystems in the Ningxia Hui Autonomous Region, based on survey data from 63 grassland plots. A total of 344 plant species, belonging to 61 families and 195 genera, were recorded. The species richness of the shrub layer was relatively low, while the herbaceous layer exhibited higher species diversity. By calculating the Sprenson similarity coefficient, importance value index, and diversity index, and applying the Godron stability assessment method, the study evaluated the differences in species composition, species importance, diversity levels, and stability characteristics of different grassland types. The results showed significant differences in species richness and diversity index in Ningxia's different grassland types, with the meadow grassland exhibiting the highest species richness and diversity, while the desert grassland had the lowest. Community stability analysis revealed that grassland communities of meadow grassland had the highest stability, whereas those in the desert grassland had the lowest. These differences are likely related to regional variations in climate conditions, soil types, and the nutrient contents. The findings provide scientific support for the protection and management of Ningxia's grassland ecosystems, emphasizing the necessity of considering climate, soil, and human activities in ecological management.

Key words: Ningxia, grassland type, plant diversity, community stability, ecological management

CLC Number: