模拟增温改变川西高山草甸优势植物繁殖物候序列特征

张莉,王根绪,冉飞,彭阿辉,肖瑶,杨阳,杨燕

Experimental warming changed plants’ phenological sequences of two dominant species in an alpine meadow, western of Sichuan

Li ZHANG,Gen-Xu WANG,Fei RAN,A-Hui PENG,Yao XIAO,Yang YANG,Yan YANG

表1 各物候指标对模拟增温响应的参数统计

Table 1 Parameter estimates of GLME models investigating phenological sequences responses to experimental warming

阶段 Stage 状态 Station 银叶委陵菜 Potentilla leuconota 珠芽拳参 Polygonum viviparum N 截距 Intercept OTCs N 截距 Intercept OTCs 花芽期 Budding 开始 First 6 5.11*** -0.03 13 5.19*** 0.01 峰值 Peak 6 5.17 *** -0.05 13 5.19*** 0.01 结束 Last 6 5.23*** -0.01 13 5.28*** 0.02 开花期 Flowering 开始 First 8 5.17*** -0.06 10 5.28*** -0.02 峰值 Peak 8 5.18*** 0.02 10 5.30*** -0.01 结束 Last 8 5.27*** -0.02 10 5.33*** -0.02 凋谢期 Withering 开始 First 8 5.18*** -0.05 13 5.25*** 0.02 峰值 Peak 8 5.27 *** -0.03 13 5.30*** 0.01 结束 Last 8 5.36 *** 0.04 13 5.33*** 0.01 种子成熟期 Ripe seeds 开始 First 8 5.23*** 0.02 12 5.36*** -0.02 峰值 Peak 8 5.37 *** 0.02 12 5.38*** -0.02 结束 Last 8 5.47*** 0.01 12 5.41*** -0.03