黄帚橐吾种群扩张对土壤理化特性与微生物功能多样性的影响

石国玺,王文颖,蒋胜竞,成岗,姚步青,冯虎元,周华坤

Effects of the spreading of Ligularia virgaurea on soil physicochemical property and microbial functional diversity

Guo-Xi SHI,Wen-Ying WANG,Sheng-Jing JIANG,Gang CHENG,Bu-Qing YAO,Hu-Yuan FENG,Hua-Kun ZHOU

表1 不同斑块的植物特征的变化(平均值±标准误差, n = 5)

Table 1 Plant properties in different patches (mean ± SE, n = 5)

斑块 Patch	黄帚橐吾密度 Ligularia vigaurea density (Ind.·0.25 m^-2)	物种丰富度 Species richness	总生物量 Total biomass (g·0.25 m^-2)	植物生物量比例 Proportion of plant biomass (%)
斑块 Patch	黄帚橐吾密度 Ligularia vigaurea density (Ind.·0.25 m^-2)	物种丰富度 Species richness	总生物量 Total biomass (g·0.25 m^-2)	莎草类 Sedge	豆科 Legume	禾草类 Grass	杂草类 Forbs
对照斑块 Control	0	22.0 ± 1.1^a	72.2 ± 11.9^b	27.6 ± 2.9^a	0.2 ± 0.1	29.3 ± 6.3^a	42.8 ± 4.2^b
低密度斑块 LD	8.8 ± 2.7^c	22.0 ± 1.2^a	86.7 ± 7.3^b	11.7 ± 5.2^ab	0.3 ± 0.1	17.9 ± 6.8^b	70.1 ± 5.2^ab
中密度斑块 MD	26.2 ± 1.4^b	21.6 ± 1.3^a	120.9 ± 11.3^ab	10.5 ± 1.9^b	0.5 ± 0.1	15.1 ± 2.9^b	73.9 ± 6.9^a
高密度斑块 HD	49.0 ± 2.2^a	16.4 ± 0.9^b	146.7 ± 23.7^a	15.4 ± 3.7^ab	0.2 ± 0.1	2.6 ± 1.7^b	81.8 ± 8.1^a