河南农业大学学报2023，Vol.57Issue(6)：949-957,9.DOI:10.16445/j.cnki.1000-2340.20231019.002
王屋山不同海拔植被-土壤耦合协调度研究
Study on vegetation-soil coupling coordination degree along different elevation in Wangwu Mountain
摘要
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.关键词
王屋山/植被-土壤系统/耦合协调度模型/海拔梯度Key words
Wangwu Mountain/vegetation-soil system/coupling coordination degree model/elevation gradient分类
农业科技引用本文复制引用
冯二朋,张立伟,赖勇,王彩峰,杨喜田,孔玉华..王屋山不同海拔植被-土壤耦合协调度研究[J].河南农业大学学报,2023,57(6):949-957,9.基金项目
国家自然科学基金项目(41501331),河南南太行山水林田湖草生态保护修复试点工程项目(济源项目) （41501331）
