甘南高寒草甸群落的物种-多度关系沿坡向的变化

李全弟,刘旻霞,夏素娟,南笑宁,蒋晓轩

Changes in species-abundance relationships of plant communities with slopes in alpine meadows of Gannan, China

LI Quan-Di,LIU Min-Xia,XIA Su-Juan,NAN Xiao-Ning,JIANG Xiao-Xuan

表2 甘南高寒草甸不同坡向物种-多度分布模型拟合

Table 2 Species abundance models fitted in different slopes of Alpine meadows of Gannan

坡向 Slope aspect 模型 Model r Oc CL 南坡 South (0°) Rapo 33.91 5.20 1.00 Rane 33.75 5.20 1.00 ZM 21.88 23.75 1.00 bro 27.22 5.18 1.00 Norm 19.75 3.24 1.00 geo 33.00 3.12 1.00 东南坡 Southeast (45°) Rapo 89.11 3.47 1.00 Rane 114.40 3.47 1.00 ZM 4.22 9.75 1.00 Bro 11.72 0.76 0.96 Norm 4.21 1.54 1.00 geo 11.72 4.63 1.00 东坡 East (90°) Rapo 42.06 8.83 1.00 Rane 40.27 8.82 0.95 ZM 24.71 8.27 0.68 bro 77.89 8.036 0.89 Norm 10.77 8.04 1.00 geo 40.14 9.71 1.00 东北坡 Northeast (135°) Rapo 27.12 16.80 0.95 Rane 25.80 22.64 0.93 ZM 35.36 100.49 1.00 bro 29.67 25.03 1.00 Norm 24.29 10.21 1.00 geo 28.38 21.90 1.00 北坡 North (180°) Rapo 22.76 22.30 0.96 Rane 22.08 79.73 1.00 ZM 32.34 48.52 0.95 bro 79.72 22.50 1.00 Norm 579.43 143.45 0.00 geo 15.77 16.30 1.00