凋落物去除对沙质草地表层土壤碳组分的影响

苏万红, 詹瑾, 李亚, 纪永福, 李玉霖, 丛安琪, 张雯, 付贵全, 王曰军

Effects of litter removal on top soil carbon components in the sandy grassland

Wanhong Su, Jin Zhan, Ya Li, Yongfu Ji, Yulin Li, Anqi Cong, Wen Zhang, Guiquan Fu, Yuejun Wang

表2 土壤碳组分与土壤理化性质的相关性分析

Table 2 Correlation analysis between soil carbon components and soil physical and chemical properties

指标 SWC BD pH EC TC TOC DOC LOC IOC ROC MBC A SWC 1 BD -0.307 1 pH 0.027 -0.020 1 EC 0.207 -0.281 0.376 1 TC 0.161 -0.643** 0.140 0.363 1 TOC 0.363 -0.638** 0.037 0.276 0.897** 1 DOC -0.517* 0.222 0.153 -0.012 -0.021 -0.308 1 LOC 0.185 -0.663** 0.294 0.564** 0.694** 0.651** -0.034 1 IOC 0.170 -0.532** 0.008 0.142 0.879** 0.823** -0.236 0.342 1 ROC 0.163 -0.113 -0.469* -0.075 0.106 0.280 -0.504* -0.027 0.273 1 SMBC 0.217 0.141 0.178 0.085 0.164 0.149 0.238 -0.032 0.163 -0.051 1 A -0.075 -0.316 0.540** 0.347 0.210 0.042 0.394 0.578** -0.122 -0.774** 0.074 1