【摘要】 为了研究海南省不同地区农用地土壤磷素含量现状,对18个市县的302个土样进行分析统计。结果表明:海南省不同地区土壤磷素含量差异较大。有22.22%的土壤有效磷含量高于土壤磷素径流迁移的环境警戒值,以海口、陵水、屯昌地区为主,以及这些市县中花岗岩风化物发育的土壤为代表的地区存在着向水体释放磷素的风险。此次的土壤养分调查结果揭示了海南省不同地区的土壤磷素状况,以及土壤磷素对水体环境污染的风险性分析。为今后土壤养分资源的综合评价、科学施肥以及防止或减轻施肥对环境的污染提出提供了基础资料。更多还原

【Abstract】 The 302 soil samples were collected from 18 counties to study the content of the phosphorus in different types soil in Hainan Province.The result showed the phosphorus content of soil in Hainan varied greatly.About 22.22% content of available phosphorus in soil was more than the base line value of environment and there were the risk that the phosphorus were released to the water body in soil from Haikou,Linshui,Tunchang.The study revealed the status of the phosphorus in soil from different districts in Hainan and the risk of the pollution of the phosphorus to the water body was evaluated.更多还原