草地利用方式对温性典型草原优势种植物功能性状的影响

张景慧, 王铮, 黄永梅, 陈慧颖, 李智勇, 梁存柱

Effects of grassland utilization on the functional traits of dominant plants in a temperate typical steppe

ZHANG Jing-Hui, WANG Zheng, HUANG Yong-Mei, CHEN Hui-Ying, LI Zhi-Yong, LIANG Cun-Zhu

表1 测定植物功能性状前(2011年)各样地优势物种相对生物量(平均值±标准误)

Table 1 Relative biomass of dominant species in each sites before measuring plant functional traits (mean ± SE)

物种 Species	相对生物量 Relative biomass				p
物种 Species	长期自由放牧 Long-term free grazing	割草 Mowing	短期围封 Short-term enclosed	长期无干扰 Long-term reservation	p
大针茅 Stipa grandis	9.89 ± 2.58^b	7.20 ± 2.70^b	5.84 ± 1.99^b	77.80 ± 4.77^a	<0.001
羊草 Leymus chinensis	36.00 ± 6.88^a	12.27 ± 2.63^ab	29.21 ± 15.40^a	2.56 ± 1.93^b	0.004
糙隐子草 Cleistogenes squarrosa	32.55 ± 6.65^a	35.13 ± 2.26^a	21.39 ± 5.26^a	3.53 ± 1.95^b	<0.001
冷蒿 Artemisia frigida	0.31 ± 0.31^b	24.94 ± 8.24^a	32.98 ± 11.02^a	3.32 ± 1.65^b	0.002