荒漠草地沙漠化对土壤-微生物-胞外酶化学计量特征的影响

吴秀芝,阎欣,王波,刘任涛,安慧

Effects of desertification on the C:N:P stoichiometry of soil, microbes, and extracellular enzymes in a desert grassland

WU Xiu-Zhi,YAN Xin,WANG Bo,LIU Ren-Tao,AN Hui

表2 土壤-微生物-胞外酶生态化学计量的相关性分析

Table 2 Correlation analysis among soil, microbial and extracellular enzyme ecological stoichiometry

Soil C:N Soil C:P Soil N:P MBC:MBN MBC:MBP MBN:MBP BG:NAG BG:AP NAG:AP Soil C:N 1 0.760** -0.396* 0.149 -0.118 -0.143 -0.249 -0.194 0.131 Soil C:P 1 0.159 0.100 0.096 0.260 0.230 0.071 -0.207 Soil N:P 1 -0.157 0.435* 0.573** 0.543** 0.217 -0.427** MBC:MBN 1 -0.038 -0.604** -0.150 -0.185 0.039 MBC:MBP 1 0.570** 0.198 0.149 -0.224 MBN:MBP 1 0.427* 0.203 -0.366* BG:NAG 1 0.542** -0.706** BG:AP 1 0.102 NAG:AP 1