作　　者： ; ; ;

机构地区： 中山大学环境科学与工程学院环境科学系

出　　处： 《热带地理》 1995年第2期155-161,共7页

摘　　要： 本文从孢粉组成及石英砂表面形态角度研究了滇东南几种土壤的沉积环境及其演变，并研究了土壤粘粒矿物特性及化学组成特点。结果表明，土壤除经受着目前成土因子作用外，沉积古环境及其演变对土壤发育特性及矿物学化学组成也有深刻的影响。 The spore-pollen composition, quartz surface morphology and characteristics ofchemical and mineral composition of some soils in Yunnan Province are studied in this paper. The results show that besides the soil forming factors at present, the evolution of soil environment also plays a great role on soil genetic properties. From the kinds and amounts of spore-pollen and quartz surface morphology, it can be concluded that soils of Dian No. 1 and No. 2 deposited under the temperate climate condition, and that of Dab No. 7 underthe dry subtropical climate condition, then all the three developed in a low-energy chemical erosion environment all along ; and they were still in the stage between siallitization and fersiallitization, their main clay minerals were vermiculite, illite and montmorillite, respectively. Whereas the soil of Dian No. 4 deposited under the typical subtropical climate and went through the warm hash-energy erosion environment. The soil of No. 5.depositedunder the tropical climate condition and was influenced obviously by red earthening processes during Quaternary Period, both of them were already in the stage of ferallization though there still are some differences between their forming enwtonments at present.

关 键 词： 云南 土壤 发生特性 发育环境

领　　域： [农业科学] [农业科学]