酸雨对茶树中铝的形态分布及生态化学影响

建立茶树中铝的化学形态分析方法,探讨铝在茶树老叶、芽叶及培植土等一系列化学行为及与其它元素的关系,就酸雨对茶树中铝形态的影响进行了模拟实验,结果为茶树在我国西南酸雨地区的种植和生态协调提供信息.

EFFECTS OF ACID RAIN ON THE ALUMINUM SPECIATION AND ECOCHEMISTRY IN TEA PLANT

This paper means to clarify what effects will the acid rain has on tea plant, its aluminum speciation distribution and its ecochemistry. The results showed that the majority of aluminum exists stably as inactive aluminum in tea leaves and the accumulation of aluminum begins since the bud stage, not just in old leaves as reported by others. Study on the effect of simulated acid rain on twigs of tea plant showed that tea plant can grow well at current rain water acidity in Southwest China, i.e.pH 4.0-4.5 and will be injured only at pH 3.0. The study on the relations between aluminum and other nutrient elements in tea plant showed that the element correlating best with aluminum is phosphorus, suggesting that aluminum has close relation with phosphorus in its uptaking and transportation.