CAJ | 학술논문

[目的]揭示土地利用方式对球囊霉素相关土壤蛋白(GRSP)的影响.[方法]测定了海南岛5种主要土地利用方式下GRSP、土壤有机碳(Soil oaganic carbon)与土壤质地(Soil texture)在0～10、10～20、20～50cm3个土壤层次中的分布情况.[结果]相对于保持较好的次生林,4种不同耕作土壤的GRSP与有机碳含量均有所下降.GRSP在海南岛5种主要土地利用方式土壤中的含量为0.53～4.80 mg/g,占有机碳的百分比为7.9%～23.4%,是碳库的重要组成部分.GRSP占有机碳的比例在不同土地利用方式下差异显著,在土层之间差异不显著,GRSP和有机碳含量在土壤剖面上垂直分布较明显.GRSP与有机碳、砂粒含量呈显著正相关,与粉粒和粘粒呈显著负相关.[结论]砂粒含量在很大程度上决定了CRSP的含量,壤土相对粘土更有利于GRSP的累积.
[목적]게시토지이용방식대구낭매소상관토양단백(GRSP)적영향.[방법]측정료해남도5충주요토지이용방식하GRSP、토양유궤탄(Soil oaganic carbon)여토양질지(Soil texture)재0～10、10～20、20～50cm3개토양층차중적분포정황.[결과]상대우보지교호적차생림,4충불동경작토양적GRSP여유궤탄함량균유소하강.GRSP재해남도5충주요토지이용방식토양중적함량위0.53～4.80 mg/g,점유궤탄적백분비위7.9%～23.4%,시탄고적중요조성부분.GRSP점유궤탄적비례재불동토지이용방식하차이현저,재토층지간차이불현저,GRSP화유궤탄함량재토양부면상수직분포교명현.GRSP여유궤탄、사립함량정현저정상관,여분립화점립정현저부상관.[결론]사립함량재흔대정도상결정료CRSP적함량,양토상대점토경유리우GRSP적루적.
[Objective] The aim was to reveal the effects of different land use types on soil composition.[Method]GPRS,Soil organic carbon content and soil texture in 3 depths(0-10,10-20,20-50 cm)of 5 main kind of selected land use type were examined in Hainan. [Result] The results showed that GRSP and SOC content of four artificial land use types decreased compared with the natural sacondary foreSt land,the GRSP content of all samples ranged from 0.53-4.80 mg/g,accounting for 7.9%-23.4% of the SOC,which means that GRSP was one important component of SOC pool in soil.The ratio of GRSP to SOC was signiflcantly different among land use types but the depths.GRSP and SOC exhibited obvious vertical distribution pattern.GRSP was significantly positively related to SOC and sand content but negatively related to silt and clay content. [Conclusion] The sand content determined the GRSP content significantly and Joarn was better matrix for GRSP accumulation than clay.