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

作　　者：冯二朋 张立伟 赖勇 王彩峰 杨喜田[1] 孔玉华[1] FENG Erpeng;ZHANG Liwei;LAI Yong;WANG Caifeng;YANG Xitian;KONG Yuhua(College of Forestry,Henan Agricultural University,Zhengzhou 450046,China;China Construction Seventh Engineering Division Corp.Ltd.,Zhengzhou 450004,China)

机构地区：[1]河南农业大学林学院,河南郑州450046 [2]中国建筑第七工程局有限公司,河南郑州450004

出　　处：《河南农业大学学报》2023年第6期949-957,共9页Journal of Henan Agricultural University

基　　金：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)。

摘　　要：【目的】探究不同海拔对植被与土壤耦合协调度的影响,为植被-土壤系统改善和山地生态系统管理提供依据。【方法】通过对王屋山5个海拔梯度(800、1000、1100、1200和1500 m)植被与土壤的全面调查与采样分析,建立植被-土壤耦合关系评价指标体系,运用层次分析法确定各评价指标的权重,构建不同海拔梯度下植被-土壤耦合协调度模型。【结果】不同海拔梯度下植物的物种重要值、多样性指标和土壤因子均存在显著差异,壳斗科栎属(Quercus fagaceae)在各个海拔均占据优势地位。1100 m处土壤综合评价指数最高,1500 m处植被综合评价指数最高,800 m处植被和土壤综合评价指数均最低。不同海拔梯度下植被-土壤耦合协调度依次为1500 m最大,1100 m次之,1000和800 m最小,其中1500和1100 m分别表现为初级协调土壤滞后型和初级协调植被滞后型,1200 m为勉强协调土壤滞后型,800和1000 m分别为严重失调共损衰退型和中度失调植被损益型。【结论】王屋山地区不同海拔植物-土壤耦合协调关系较复杂,高海拔植被演替和土壤发育协调一致性较好,低海拔耦合协调度较差。【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(800,1000,1100,1200 and 1500 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 1100 m was the highest,that of vegetation at 1500 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 1500 m,followed by 1100 m,and the minimum was 1000 m and 800 m.Among,the 1500 m and 1100 m were primary coordinated soil lag type and primary coordinated soil lag type,respectively.The 1200 m was barely coordinated vegetation lag type.The 800 m and 1000 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 

分 类 号：S757.3[农业科学—森林经理学]