长江源区布曲流域土壤有机碳分布特征及其影响因素
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张超飞, 马素萍, 何晓波, 汪少勇
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Distribution characteristics and influencing factors of soil organic carbon in Buqu catchment in the source region of the Yangtze River, China
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Chaofei ZHANG, Suping MA, Xiaobo HE, Shaoyong WANG
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表4 土壤有机碳含量与其理化性质的关系(皮尔逊相关系数)
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Table 4 Soil organic carbon content vs soil physical and chemical properties (Pearson correlation coefficient)
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指标 | pH | 全氮 | 碳氮比 | 全磷 | 全钾 | 无机碳 | 阳离子交换量 | 容重 | 体积含水量 | 黏粒 | 有机碳 |
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pH | 1.000 | | | | | | | | | | | 全氮 | -0.184 | 1.000 | | | | | | | | | | 碳氮比 | -0.558** | -0.161 | 1.000 | | | | | | | | | 全磷 | -0.172 | 0.153 | -0.234 | 1.000 | | | | | | | | 全钾 | -0.332 | -0.013 | 0.194 | 0.005 | 1.000 | | | | | | | 无机碳 | 0.577* | -0.386 | 0.015 | -0.343 | -0.259 | 1.000 | | | | | | 阳离子交换量 | -0.262 | 0.428* | 0.011 | 0.073 | 0.249 | -0.489 | 1.000 | | | | | 容重 | 0.030 | -0.539** | 0.468* | -0.344 | 0.044 | 0.642* | -0.136 | 1.000 | | | | 体积含水量 | -0.563** | 0.423* | 0.197 | 0.095 | 0.022 | -0.458 | 0.398 | -0.287 | 1.000 | | | 黏粒 | -0.454* | 0.352 | -0.133 | 0.430* | -0.034 | -0.607* | 0.340 | -0.685** | 0.461* | 1.000 | | 有机碳 | -0.663** | 0.383 | 0.841** | -0.103 | 0.216 | -0.517 | 0.273 | 0.143 | 0.439* | 0.083 | 1.000 |
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