ABSTRACT

The biogeochemical effect of birds can influence the paedogenic processes in the Antarctica soils. The content of nutrients (phosphorus, potassium, nitrate and ammonium) and the total carbon and nitrogen contents in soils were determined at the nesting and feeding sites of flying and non-flying birds in the Fildes Peninsula (King George Island, West Antarctica). The results showed that the difference between soils affected by birds (both flying and non-flying) and the background soils was observed with the higher content of biogenic elements (e.g. C, N, P, K) and fine-earth content, variable soil pH values, more expressed soil structure and specific morphology of the uppermost organogenic and organo-mineral horizons. Additional chemical indices are suggested for diagnostics of current and recent effect of birds on paedoenvironments.

摘要

鸟类的生物地球化学效应会影响南极土壤的成岩过程。在费尔德斯半岛（南极洲乔治王岛）的飞鸟和非飞鸟的筑巢和觅食地点，测定了土壤中的养分含量（磷，钾，硝酸盐和铵）以及总碳和氮含量。结果表明，受鸟类（飞和非飞）影响的土壤与背景土壤之间存在差异，其中生物源元素（例如C，N，P，K）的含量较高，而细土含量较高，可变土壤pH值，最表达的土壤结构和最上层的有机成矿层和有机矿层的特定形态。建议使用其他化学指标来诊断禽类对足环境的当前和近期影响。