Study on vegetation-soil coupling coordination degree along different elevation in Wangwu Mountain
Journal Title: Journal of Henan Agricultural University - Year 2023, Vol 57, Issue 6
Abstract
[Objective] To explore the effects of different elevations on the coupling coordination degree between vegetation and soil, and provide basis for the improvement of vegetation-soil system and mountain ecosystem management. [Method] The vegetation and soil characteristics along five elevation gradients (800, 1 000, 1 100, 1 200 and 1 500 m) in Wangwu Mountain were comprehensively investigated and analyzed. The evaluation index system of vegetation-soil coupling relationship was established, and then the weight of each evaluation index was determined by Analytic Hierarchy Process method. Finally, the coupling coordination degree models of vegetation-soil under different altitude gradients were constructed. [Result] There were significant differences in species importance value, diversity index of plant, and soil properties at different elevation gradients. Quercus fagaceae was dominant at all elevations. The comprehensive evaluation index of soil at 1 100 m was the highest, that of vegetation at 1 500 m was the highest, and that of vegetation and soil at 800 m was the lowest. The maximum coupling coordination degree of vegetation-soil at different elevation gradients was 1 500 m, followed by 1 100 m, and the minimum was 1 000 m and 800 m. Among, the 1 500 m and 1 100 m were primary coordinated soil lag type and primary coordinated soil lag type, respectively. The 1 200 m was barely coordinated vegetation lag type. The 800 m and 1 000 m were the severely dysregulated co-loss decline type and the moderately dysregulated vegetation gain and loss type, respectively. [Conclusion] The coordination of vegetation-soil coupling was more complex along different elevations in Wangwu Mountain. Vegetation succession and soil development at high elevation gradient had better coordination and consistency, but worse at low elevation gradients.
Authors and Affiliations
Erpeng FENG, Liwei ZHANG, Yong LAI, Caifeng WANG, Xitian YANG, Yuhua KONG
Keywords
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- DOI 10.16445/j.cnki.1000-2340.20231019.002
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