CAJ | 학술논문

以4个尾巨桉幼林林地土壤为研究对象，对土壤有机C、全N、全P、全K含量及其化学计量特征进行了研究。结果表明：土壤养分随着土层的加深而降低，土壤有机C和全N降幅较大，全P和全K降幅较小。4个林地土壤C/N比变化范围为7.95~21.78，平均值为12.36；土壤C/P比变化范围为23.85~57.52，平均值为40.85；土壤C/K比变化范围为3.61~13.09，平均值为9.05；土壤N/P比变化范围为1.24~7.36，平均值为4.30；土壤N/K比变化范围为0.18~2.37，平均值为1.05；土壤N/P比变化范围为0.16~0.35，平均值为0.25；土壤有机C与养分全量的N、P、K均呈正相关关系，其与全K呈现极显著正相关关系。
이4개미거안유림임지토양위연구대상，대토양유궤C、전N、전P、전K함량급기화학계량특정진행료연구。결과표명：토양양분수착토층적가심이강저，토양유궤C화전N강폭교대，전P화전K강폭교소。4개임지토양C/N비변화범위위7.95~21.78，평균치위12.36；토양C/P비변화범위위23.85~57.52，평균치위40.85；토양C/K비변화범위위3.61~13.09，평균치위9.05；토양N/P비변화범위위1.24~7.36，평균치위4.30；토양N/K비변화범위위0.18~2.37，평균치위1.05；토양N/P비변화범위위0.16~0.35，평균치위0.25；토양유궤C여양분전량적N、P、K균정정상관관계，기여전K정현겁현저정상관관계。
The soil organic C, total N, total P, total K content and stoichiometry in fourEucalyptusurophylla ×grandisplantations were studied. The results showed that with increasing soil depth the soil nutrients decreased including significant decreases in soil organic C and N whilst total P and total K decreased by smaller margins than C and N. The C/ N ratio ranged from 7.95 to 21.78, and the mean value was 12.36; the C/ P ratio ranged from 23.85 to 57.52, and the mean value was 40.85; the C/ K ratio ranged from 3.61 to 13.09 and the mean value was 9.05; the N/ P ratio ranged from 1.24 to 7.36, and the mean value was 4.30; the N/ K ratio ranged from 0.18 to 2.37, and the mean value was 1.05; and, the P/ K ratio ranged from 0.16 to 0.35, and the mean value was 0.25. Soil organic C and the total amount of the nutrients N, P and K were positively correlated with K.