CAJ | 학술논문

本文以南京地区长城岗和泉水两个水稻土剖面为研究对象,在利用Silva-Bremner法测定土壤全样和3个粒级(黏粒、粉粒和细砂粒)的固定态铵含量、利用X-射线衍射仪测定矿物成分的基础上,讨论了固定态铵含量与粒级以及矿物种类的关系.结果认为,两个剖面在以下几个方面具有共性:①在黏粒、粉粒和细砂粒3个粒级中,黏粘粒含量与固定态铵含量的关系最为密切,相关系数分别为0.68和0.64;②在黏粒中的伊利石、高岭石和蒙脱石3种主要矿物中,伊利石含量与固定态铵含量相关性最好,相关系数分别为0.50和0.49;⑨对于全样来说,其中的伊利石含量与同定态铵含量呈极显著正相关,相关系数分别为0.68和0.66.这些数据充分说明,伊利石是南京地区水稻土中固定态铵赋存的最主要载体.
본문이남경지구장성강화천수량개수도토부면위연구대상,재이용Silva-Bremner법측정토양전양화3개립급(점립、분립화세사립)적고정태안함량、이용X-사선연사의측정광물성분적기출상,토론료고정태안함량여립급이급광물충류적관계.결과인위,량개부면재이하궤개방면구유공성:①재점립、분립화세사립3개립급중,점점립함량여고정태안함량적관계최위밀절,상관계수분별위0.68화0.64;②재점립중적이리석、고령석화몽탈석3충주요광물중,이리석함량여고정태안함량상관성최호,상관계수분별위0.50화0.49;⑨대우전양래설,기중적이리석함량여동정태안함량정겁현저정상관,상관계수분별위0.68화0.66.저사수거충분설명,이리석시남경지구수도토중고정태안부존적최주요재체.
In this study, the contents of fixed ammonium (FA) and mineral components in three different particle sizes (clay, silt and fine sand) and bulk samples from Changchenggang and Quanshui profiles in Nanjing region were analyzed by Silva-Bremner method while clay minerals were measured by X-ray diffraction, then the relationship between FA content and particle content, as well as mineral kind were discussed. The results showed that: ①among the three particle sizes, clay content had the closest correlation with FA content with the correlation coefficients of 0.68 and 0.64 for two profiles respectively. ②for three minerals (illite, kaolinite and montmorillonite), which were dominant in clay particles, illite content had the closest correlation with FA content with the correlation coefficients of 0.50 and 0.49 respectively. ③in the bulk samples, illite content had the most significantly positive correlation with FA content with the correlation coefficients of 0.68 and 0.66 respectively. These results indicated that illite might be one of the most important carriers for the storage of FA in paddy soil of Nanjing region.