冬季增温和减雪对黄土高原典型草原土壤养分和细菌群落组成的影响

毛瑾, 朵莹, 邓军, 程杰, 程积民, 彭长辉, 郭梁

Influences of warming and snow reduction in winter on soil nutrients and bacterial communities composition in a typical grassland of the Loess Plateau

MAO Jin, DUO Ying, DENG Jun, CHENG Jie, CHENG Ji-Min, PENG Chang-Hui, GUO Liang

表3 土壤细菌多样性和各分类群丰度与土壤理化性质和酶活性的Pearson相关性分析

Table 3 Pearson correlation coefficients of soil bacterial diversity and abundance of various taxon with soil physical and chemical properties and enzyme activities

Sha. Chao1 Ric. Aci. Pro. Act. Gem. Chl. Pla. Rok. Ver. Bac. SOC 0.23 -0.26 -0.06 -0.36 0.19 0.36 -0.16 -0.09 -0.13 -0.14 0.19 0.22 TN 0.12 -0.14 -0.07 -0.23 0.36 0.17 -0.42 -0.05 -0.05 0.21 -0.09 0.00 AP 0.15 0.11 0.19 0.43 0.46 -0.28 -0.32 -0.10 -0.11 0.32 0.11 -0.02 NO- 3-N 0.47 0.80* 0.78** 0.54* 0.32 -0.02 -0.08 -0.48 -0.16 -0.22 -0.23 -0.11 NH+ 4-N -0.58* -0.45 -0.55* -0.27 -0.25 -0.20 -0.06 0.65** -0.02 0.39 0.48 0.09 pH -0.08 -0.10 -0.19 0.01 0.02 -0.27 -0.01 -0.14 0.54* -0.10 -0.35 0.35 MBC 0.56* 0.22 0.43 -0.07 0.38 0.43 -0.02 -0.54* -0.14 -0.43 -0.15 0.25 MBN 0.63** 0.27 0.51* -0.16 0.70** 0.16 -0.33 -0.40 0.04 -0.26 -0.20 0.40 BG 0.77** 0.42 0.70** 0.06 0.47 0.27 -0.11 -0.62* 0.02 -0.47 -0.24 0.25 NAG 0.49 0.31 0.54* 0.38 0.42 -0.01 0.05 -0.41 -0.12 -0.19 -0.20 0.04 AKP 0.56* 0.35 0.49 -0.02 0.18 0.51* 0.22 -0.61* -0.25 -0.66** -0.05 0.21