Phosphorus forms in soils of Oban Hills, Akamkpa, Cross River State, Nigeria

Abstract

Oban Hills is located at Akamkpa in the Southern Senatorial District of Cross River, State, Nigeria. Phosphorus (P)-rich soil from the Hills is expected to have an effect on retention and distribution in the highly acidic soils surrounding the area inundated for several years. Phosphorus forms in the soils of the Hills varied with the year of deposition with the highest fraction being Ca-P. The low soil pH in the Oban Hills soils suggests that Ca-P may exist in a partially dissolved form and will be the primary source of P for vegetations around the area. The cation exchange capacity and pH of surface material from the Hills suggest a dominance of primary minerals. Based on the amount of P available it seems that the Hills soils play a role in the overall P availability to the surrounding vegetation. A significant (P

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尼日利亚克罗斯河州阿坎帕奥班山土壤中磷的形成

奥班山位于尼日利亚克罗斯河州南部参议院区Akamkpa。预计来自丘陵的富磷土壤将对淹没地区周围高酸性土壤的保留和分布产生影响。丘陵土壤中磷的形态随沉积年份的不同而变化，其中钙磷含量最高。奥本山土壤pH值较低，表明钙磷可能以部分溶解形式存在，并将成为该地区植被磷的主要来源。丘陵表面物质的阳离子交换能力和pH值表明原生矿物占主导地位。从速效磷的数量来看，丘陵土壤似乎对周围植被的总体速效磷起作用。OB2土壤中HCI可溶性磷随深度显著降低(P< 0.05)，其中0 ~ 15cm土壤中HCI可溶性磷含量最高。碳酸氢盐P随位置(OBI, OB2和0B3)和深度而变化，但OB3值最高。关键词:磷，土壤，奥班山，固磷，磷分布

本文章由计算机程序翻译，如有差异，请以英文原文为准。