池州地区石灰岩分布区茶园土壤*及其形成环境

本文对安徽省池州地区广大茶园分布在石灰岩所构成的丘陵及岗地这一特殊现象进行了探讨。指出:在湿润的亚热季风气候条件下,其成土作用过程仍然是纯淋溶过程和富铝化过程,而地貌条件及本区石灰岩的建造及岩性也强烈地影响了这些过程的进行,因而在广大的茶园中虽随处可见石灰岩露头,但土壤却为酸性或弱酸性的地带性土壤,符合茶树的适生条件。

THE SOILAND ITS FORMING PROCESS OF TEA PLANTATIONS IN THE LIMESTONE AREA OF CHIZHOU DISTRICT

Chizhou Distriict is an important black tea area in Auhwei Province.The tea plantation covess on area of over 25,000 mu,and the tea gardens are distributed mainly over limestone hilly land and mounols,Under the conditions of the moist subtropical monsoon climate, the forming process of the soil in the limestone-distribution area is a process of strong eluviation and weathering,and such a soil forming process is closely related to the geomorphologic conditionns,the limestone formation and its lithlogic character.Therefore, though the outcrop of limestone can be seen around the tea gardens,the soil is a zonal soil with acid or slightly acid reactions and is snitable for the growth of tea trees.On the contrary,though the soil layer is thick and having no outcrops of limestones in some depressions or vaalley bottoms,the soil is alkaline and is harmful to the tea trees.