摘要
海南地处热带,地带性土壤有砖红壤、燥红土和山地赤红壤、山地黄壤等。其平均含量Cu19.50mg/kg,Pb72.57mg/kg,Zn41.78mg/kg,Ni33.19mg/kg,Se0.272mg/kg。山地赤红壤和山地黄壤铜含量偏低,铁质砖红壤铅含量偏高,其他各类土壤各元素含量正常。玄武岩上的土壤Cu,Pb,Zn,Ni,Se的含量都较高。母质是影响这些元素含量及其地理分异的首要因素,其次是气候和元素自身性质,在雨量较少的西部和西南部地区Cu,Pb,Zn含量相对较高,在雨量较多的东南部和中部地区相对较低,而Ni,Se则相反。土壤腐殖质、土壤质地和土壤化学成分组成等对微量元素含量及其地理分布也有一定影响。
The zonal soils of Hainan province comprises with laterite, savanna soil, mountain lateritic red earth, mountain yellow earth, etc. The average trace elements contents in the zonal soils are Cu19.50mg/kg, Pb72.57mg/kg, Zn41.78mg/kg, Ni33.19mg/kg, Se0.272mg/kg. The contents of Cu, Pb, Zn, Ni, Se are high in soils on basalts. The contents of Cu, Zn, Pb are low in Udic region as well as in semiarid region. The contents and geographic distributions of Cu, Pb, Zn, Ni, Se are mainly dependent on soil_forming rock and climatic factor.
出处
《地域研究与开发》
CSSCI
2003年第6期66-68,93,共4页
Areal Research and Development
关键词
地带性土壤
微量元素
地理分布
海南
zonal soil
trace elements
geographic distribution
Hainan province
