高寒草甸退化过程中群落生产力和物种多样性的非线性响应机制研究

陈宁,张扬建,朱军涛,李军祥,刘瑶杰,俎佳星,丛楠,黄珂,王荔

Nonlinear responses of productivity and diversity of alpine meadow communities to degradation

Ning CHEN,Yang-Jian ZHANG,Jun-Tao ZHU,Jun-Xiang LI,Yao-Jie LIU,Jia-Xing ZU,Nan CONG,Ke HUANG,Li WANG

表3 高寒草甸退化过程中土壤含水量的线性和非线性响应比较

Table 3 Comparison between linear and nonlinear responses of soil water content to alpine meadow degradation

R2 拟合模型 Fitted model 0-7.6 cm土层 0-7.6 cm soil layer 线性模型 Linear model 0.61*** y = 0.044x + 7.396 非线性模型 Nonlinear model 0.61*** y = 7.557e0.005x 0-12 cm土层 0-12 cm soil layer 线性模型 Linear model 0.39*** y = 0.066x + 10.148 非线性模型 Nonlinear model 0.41*** y = -0.001x2 + 0.169x + 8.136