[1]LU Jinxin,GAO Fei,ZHOU Ronglei,et al.Relationship Between Herbaceous Communities and Soil Nutrients Under Different Vegetation Types[J].Research of Soil and Water Conservation,2023,30(03):310-317,326.[doi:10.13869/j.cnki.rswc.2023.03.032]
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 03
Page number:
310-317,326
Column:
Public date:
2023-04-10
- Title:
-
Relationship Between Herbaceous Communities and Soil Nutrients Under Different Vegetation Types
- Author(s):
-
LU Jinxin1,2, GAO Fei1, ZHOU Ronglei2, LIU Yangyang2, WEN Zhongming2
-
(1.Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China; 2.College of Grassland and Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China)
-
- Keywords:
-
vegetation restoration; community diversity; Xindian watershed; soil nutrients; biomass
- CLC:
-
Q948.113
- DOI:
-
10.13869/j.cnki.rswc.2023.03.032
- Abstract:
-
[Objective]In the context of large-scale revegetation of the Loess Plateau, it is essential for the sustainability of the revegetation to reveal the synergistic development and interrelationship between the physical and chemical properties of the adjacent herbaceous communities and the soil in the cultivated layer. [Methods] Herbaceous communities in Xindian watershed of Suide in northern Shaanxi were examined under different types of plant restoration. Soil samples were collected by establishing field plots, measuring community cover, species information, and other indicators. Herbaceous community characteristics, soil factors, and their response relationships under various vegetation types were examined through indoor experiments and statistical analysis. [Results](1)The Margalef richness index, Simpson dominance index, Shannon-Wiener diversity index, and Pielou evenness index of the herbaceous layer under various vegetation restoration types in the northern Shaanxi sub-basin differed significantly, with wasteland and scrubland>mixed tree and shrub forest>planted grassland and tree forest(p<0.05).(2)Soil parameters had significant associations with herbaceous community biomass, community coverage, and leaf functional characteristics(p<0.05), and grassland samples were more responsive to different vegetation types on southern slopes than on northern slopes.(3)The RDA ranking analysis revealed that soil organic carbon, total nitrogen, total phosphorus content, soil bulk, and maximum soil water holding capacity were the most influential factors in herbaceous community growth and development. [Conclusion] The ecological stability and soil and water conservation functions of grassland in scrubland, mixed tree and irrigation forest, and wasteland were superior to those of other methods of restoring vegetation.