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水稻土的粘土矿物组成与本地区的成土母质和沉积条件密切相关,因此,了解土壤粘粒中的矿物组成、分布以及理化性状,是研究土壤形成和鉴别土壤类型以及土壤肥力的一个重要环节。我们采用X-射线衍射法,透射电子显微镜摄影和粘粒化学分析等方法。根据上海地区成土过程的不同类型,采集6个典型剖面样本进行了鉴定。六个剖面为:岗身内侧的青浦城东、香花;岗身地带的嘉定封浜;岗身东侧地区的上海杜行、南汇宣桥和受钱塘江冲积物影响的金山张堰。
The clay mineral composition of paddy soil is closely related to the parent material and sedimentary conditions in the area. Therefore, understanding the mineral composition, distribution and physical and chemical properties of soil clay is an important part of studying soil formation and identifying soil types and soil fertility . We use X-ray diffraction, transmission electron microscopy and clay chemical analysis methods. According to the different types of soil-forming process in Shanghai, six typical section samples were collected for identification. The six sections are: Qingpu east and fragrant flowers on the inside of the post; Jiading Hamamatsu in Jiading district in the postal area; Shanghai Duhang, Nanhui and Xuanqiao in the eastern area of the post; and Jinshan Zhangyan affected by alluvial Qiantang River.