巴音布鲁克高寒草甸植物功能多样性与生态系统多功能性关系沿海拔梯度的变化

吕自立, 刘彬, 常凤, 马紫荆, 曹秋梅

Relationship between plant functional diversity and ecosystem multifunctionality in Bayanbulak alpine meadow along an altitude gradient

LÜ Zi-Li, LIU Bin, CHANG Feng, MA Zi-Jing, CAO Qiu-Mei

表4 巴音布鲁克高寒草甸海拔对功能多样性与生态系统多功能(EMF)影响的结构方程模型概述

Table 4 A summary of structural equation model of the effect of altitude on functional diversity and ecosystem multifunctional index (EMF) in Bayanbulak alpine meadow

关系 Regression 完全中介模型 Full mediation model (df = 15, SRMR = 0.08, GFI = 0.92) 部分中介模型 Partial mediation model (df = 13, SRMR = 0.08, GFI = 0.81) Est. std SE p Est. std SE p Alt-FRic 0.067 0.127 0.008 0.004 0.059 0.952 Alt-FEve -0.044 0.111 0.147 -0.015 0.029 0.606 Alt-FDis -0.049 0.129 0.309 -0.080 0.058 0.165 Alt-Rao’Q -0.980 0.023 <0.001 -0.980 0.023 0.000 FRic-EMF 0.475 0.275 <0.001 0.506 0.161 0.002 FEve-EMF 0.127 0.089 <0.001 0.143 0.084 0.087 FDis-EMF 0.283 0.274 <0.001 0.233 0.167 0.163 Rao’Q-EMF 0.050 0.570 0.017 0.067 0.068 0.325 Alt-EMF 0.007 0.400 0.857