刈割、施肥对高寒草甸物种多样性与生态系统功能关系的影响及群落稳定性机制

王海东, 张璐璐, 朱志红

Effects of clipping and fertilizing on the relationships between species diversity and ecosystem functioning and mechanisms of community stability in alpine meadow

WANG Hai-Dong, ZHANG Lu-Lu, ZHU Zhi-Hong

表2 全部物种数及各类物种所占比例在不同处理间差异的方差分析

Table 2 ANOVA for difference in the number of total species and percentage of each species type accounted for total species among different treatments

物种类型 Species type	不施肥 Unfertilized					施肥 Fertilized					施肥效应 Fertilized effect
物种类型 Species type	不刈割 Unclipped	中度刈割 Stubbled 3 cm	重度刈割 Stubbled 1 cm	F	平均值 Mean	不刈割Unclipped	中度刈割Stubbled 3 cm	重度刈割Stubbled 1 cm	F	平均值 Mean	F
全部物种数 No. of total species	28.7^b	33.4^a	28.9^b	13.79^***	30.4	22.8^c	30.1^a	27.1^b	17.64^***	26.6	20.33^***
响应物种(%) Response species (%)	58.6^a	56.3^a	60.8^a	2.89	58.6	54.9^b	53.1^b	56.7^a	15.20^***	54.9	40.32^***
作用物种(%) Effect species (%)	28.4^b	28.4^b	31.5^a	3.76^*	29.5	23.9^b	24.2^b	27.5^a	10.23^***	25.2	48.50^***
共有物种(%) Common species (%)	94.0^a	91.5^b	93.8^a	12.64^***	93.1	95.1^a	92.6^b	94.7^a	15.21^***	94.1	20.55^***