【摘要】 为阐明施肥量对福州茉莉园碳排放及其与土壤铁含量的影响,以福州帝封江茉莉园为研究对象,设置对照、减半、正常和倍增4个处理,对不同施肥量下碳排放以及铁含量进行了测定与分析。结果表明:对照、减半、正常、倍增样地CO2排放通量平均值依次为（430.88±142.06）、（473.08±52.18）、（435.23±61.21）和（478.75±118.64）mg·m^-2·h^-1,CH4排放通量平均值依次为（38.84±9.69）、（16.77±10.71）、（4.11±4.79）和（11.92±2.27）μg·m^-2·h^-1。与对照相比,CO2排放通量在减半、正常和倍增施肥处理分别增加了9.7%、1.01%和11.10%,CH4排放通量在减半、正常和倍增施肥处理下则分别减少了56.82%、89.41%、69.30%。总Fe含量平均值依次为（9.11±0.08）、（7.87±0.09）、（9.37±0.25）和（8.90±0.21）g·kg^-1,Fe2+含量的平均值依次为（1.08±0.01）、（1.08±0.07）、（1.01±0.09）和（1.09±0.04）g·kg^-1,Fe³⁺含量平均值依次为（8.04±0.08）、（6.80±0.15）、（8.37±0.19）和（7.82±0.22）g·kg^-1。总Fe含量在减半和倍增处理下分别减少了13.61%和2.30%,而正常处理提高了2.85%;Fe2+含量在正常处理下减少了6.48%;Fe³⁺含量在正常处理下提高了4.10%,在减半和倍增处理则分别减少了15.42%与2.73%。由相关性分析得出对照、正常、倍增处理C排放与Fe³⁺、Fe含量呈极显著负相关关系（P<0.01）,而减半处理呈显著负相关关系（P<0.05）。更多还原

【Abstract】 Effects of fertilizer application on the carbon emission and iron content in soil of a jasmine flower garden were investigated at Difengjiang Jasmine Garden in Fuzhou.Based on the application normally used by the trade,4 levels of fertilization were implemented,i.e.,control（C）,normal（N）,of N（H）,and 2 xof N（D）.The results showed that the average hourly CO₂ fluxes at various lots were（430.88±142.06）mg·m^-2 for C,（473.08±52.18）mg·m^-2 for H,（435.23±61.21）mg·m^-2 for N,and（478.75±118.64）mg·m^-2 for D.The average CH4 emission rateswere（38.84±9.69）μg·m^-2·h^-1 for C,（16.77±10.71）μg·m^-2·h^-1 for H,（4.11±4.79）μg·m^-2·h^-1 for N,and（11.92±2.27）μg·m^-2·h^-1 for D.Thus,the CO₂ flux increased by 9.7%for H,1.01%for N,and 11.10%for D over control,while the CH4 flux reduced by 56.82%for H,89.41%for N,and 69.30%for D over control.The average total Fe contents were（9.11±0.08）g·kg^-1 for C,（7.87±0.09）g·kg^-1 for H,（9.37±0.25）g·kg^-1 for N,and（8.90±0.21）g·kg^-1 for D;theaveraged Fe2+content,（1.08±0.01）g·kg^-1 for C,（1.08±0.07）g·kg^-1 for H,（1.01±0.09）g·kg^-1 for N,and（1.09±0.04）g·kg^-1 for D;and,while the average Fe³⁺content,（8.04±0.08）g·kg^-1 for C,（6.80±0.15）g·kg^-1 for H,（8.37±0.19）g·kg^-1 for N,and（7.82±0.22）g·kg^-1 for D.The total Fe contents decreased by 13.61%for H and 2.30%for D,while increased by 2.85%for N over control.The Fe2+content decreased by 6.48%for N;and,Fe³⁺contents increased by 4.10%for N,and decreased by 15.42%for H and 2.73%for D over control.A correlation analysis indicated that the carbon emission fromthe lots treated with C,N,and D significantly inversely correlated with the Fe³⁺and total Fe contentsat（P<0.01）,whereas H,at P<0.05.更多还原