黄河三角洲典型滨海盐沼湿地土壤CO<sub>2</sub>和CH<sub>4</sub>排放对水盐变化的响应

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黄河三角洲典型滨海盐沼湿地土壤CO₂和CH₄排放对水盐变化的响应

李雪¹^,³^,⁴, 董杰³, 韩广轩¹^,², 张奇奇¹, 谢宝华¹^,², 李培广¹^,², 赵明亮¹^,², 陈克龙⁴, 宋维民¹^,²^,^*(

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Response of soil CO₂ and CH₄ emissions to changes in moisture and salinity at a typical coastal salt marsh of Yellow River Delta

LI Xue¹^,³^,⁴, DONG Jie³, HAN Guang-Xuan¹^,², ZHANG Qi-Qi¹, XIE Bao-Hua¹^,², LI Pei-Guang¹^,², ZHAO Ming-Liang¹^,², CHEN Ke-Long⁴, SONG Wei-Min¹^,²^,^*(

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图5. 土壤碳矿化速率与土壤理化性质、微生物特征之间的Pearson相关关系。*, p < 0.05; **, p < 0.01; ***, p < 0.001。CH₄, 土壤CH₄排放量; CH₄:CO₂, 土壤CH₄与CO₂通量比率; Chao1, Chao1指数; CO₂, 土壤CO₂排放量; DOC, 土壤可溶性有机碳含量; GWP, 全球增温潜势; MBC, 土壤微生物生物量碳含量; MBN, 土壤微生物生物量氮含量; Observed species, 物种数量; PD whole tree, PD whole tree指数; Shannon, Shannon-Wiener多样性指数; TC, 土壤总碳含量; TN, 土壤总氮含量。

Fig. 5. Pearson?s correlation between soil carbon mineralization rate and physical and chemical properties as well as microbial characteristics. *, p < 0.05; **, p < 0.01; ***, p < 0.001. CH₄, soil CH₄ emission; CH₄:CO₂, soil CH₄ to CO₂ ratio; Chao1, Chao1 index; CO₂, soil CO₂ emission; DOC, soil dissolved organic carbon content; GWP, global warming potential; MBC, soil microbial biomass carbon content; MBN, soil microbial biomass nitrogen content; PD whole tree, PD whole tree index; Shannon, Shannon-Wiener diversity index; TC, soil total carbon content; TN, soil total nitrogen content.