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为了解不同质地湿地土壤碳、氮、磷计量学及厌氧碳分解特征,对闽江河口芦苇和藨草湿地2种质地土壤(壤质土和砂土)的碳、氮、磷计量学及土壤厌氧碳分解特征进行测定与分析.结果表明:壤质土碳为14.61mg/g,氮为1.01mg/g,磷为0.64mg/g,高于砂土碳(9.02mg/g),氮(0.16mg/g)和磷(0.42mg/g).0～40cm壤质土C/N均值低于砂土,C/P、N/P高于砂土.0～40cm壤质土和砂土平均甲烷产生潜力分别为0.0072,0.0019μg/(g·d),CO2产生潜力分别为33.5134,4.9239μg/(g·d),CO2和CH4产生潜力均为壤质土高于砂土.土壤碳、氮、磷的计量学特征对厌氧碳分解具有一定的指示作用.
In order to understand the characteristics of soil carbon, nitrogen, phosphorus and anaerobic carbon decomposition in different texture wetlands, the carbon, nitrogen and phosphorus contents of soil (loamy and sandy soil) The results showed that: the loamy soil carbon was 14.61mg / g, the nitrogen was 1.01mg / g, the phosphorus was 0.64mg / g, which was higher than the sand carbon (9.02mg / g) Nitrogen (0.16mg / g) and phosphorus (0.42mg / g) .The C / N mean values of loamy soil from 0 to 40cm were lower than those from sandy soil, C / P and N / The average methane potential of sand was 0.0072,0.0019μg / (g · d) respectively, and the potential of CO2 generation was 33.5134 and 4.9239μg / (g · d), respectively. The potential of both CO2 and CH4 was higher than that of sandy soil. The metrological characteristics of soil carbon, nitrogen and phosphorus are indicative of anaerobic carbon decomposition.