CAJ | 학술논문

采用田间试验和室内测定相结合的方法，研究了4、12、19、24和29年橡胶林土壤矿化碳含量的时空变化特征及其与有机碳含量的比值变化。结果表明：5种树龄橡胶林土壤最高矿化碳含量均出现在0～15 cm土层，随着土壤深度的增加而呈下降趋势；随着培养时间的延长，矿化碳含量呈现从急剧下降到逐渐平稳的变化趋势。而土壤矿化碳含量和有机碳含量的比值在2.03%～5.55%，随着树龄的增加呈现降升不断交替的变化规律。
채용전간시험화실내측정상결합적방법，연구료4、12、19、24화29년상효림토양광화탄함량적시공변화특정급기여유궤탄함량적비치변화。결과표명：5충수령상효림토양최고광화탄함량균출현재0～15 cm토층，수착토양심도적증가이정하강추세；수착배양시간적연장，광화탄함량정현종급극하강도축점평은적변화추세。이토양광화탄함량화유궤탄함량적비치재2.03%～5.55%，수착수령적증가정현강승불단교체적변화규률。
Combined determination method of field test and indoor, variation of the spatio-temporal dynamics of soil mineralized carbon content and the ratio between soil mineralized carbon content and organic carbon content in 4 a, 12 a 19 a, 24 a and 29 a rubber plantations were studied. The results showed that the maximum soil carbon mineralized content occurred at 0-15 cm of topsoil in various aged rubber plantations, and they all decreased with the soil depth. With the incubation time prolonged, the carbon content of the mineralization presented a sharp decline at the beginning and descended gradually to smooth trends. The ratios of soil mineralized carbon content and organic carbon content were between 2.03%~5.55%, and showed a falling-rising constantly alternating variation with the increasing age of rubber plantation.