作　　者： ;

机构地区： 华南师范大学地理科学学院地理科学系

出　　处： 《热带地理》 1993年第1期64-69,共6页

摘　　要： 土壤中溶解态铝的含量,主要受固态铝的风化水解反应和溶解铝的聚凝共沉反应两种过程的控制.当pH>4.5时,溶解铝的含量对pH有极强的响应;在pH为4.0～4.5时,铝对pH的响应最弱;当pH<4.0后,响应程度又有所提高。 There are two taps controlling the release process of aluminium in soils: the hydrolysis of aluminium hydroxides and the coagulation of soluble aluminium With soil colloid. The responsibility of soluble aluminium to pH has two turning points. The soluble aluminium responds strongly to the change of pH when soil ph>4.5, which is the first tap of the controller. Its responsibility becomes very weak when soil pH<4.5, which is the second tap of the controller. However, the responsibility slightly increased when pH<4.0.

关 键 词： 土壤 铝 水解反应 溶解性 环境化学

领　　域： [环境科学与工程]