贵州土壤中的锰

经２２０个土壤样点的测定，贵州土壤全锰含量在２６－３０６０ｍｇ／ｋｇ之间，平均为５９２ｍｇ／ｋｇ。不同土类中石灰土含锰最高，红壤最低；不同母岩土壤中，石灰岩最高，砂岩最低，全境土壤锰的地理分布有醅较高，东部较低的分异规律。

Mn IN SOILS OF GUIZHOU

According to the determination of 220 sample points of soils, the total Mn contents in soil of Guizhou range from 26mg/ kg to 3060mg/ kg, the average value is 592mg/ kg. For different kinds of soil , Mn content of the calcareous soil is the highest (934mg/ kg), and that of the red soil is the lowest ( 339mg / kg). For different parent rock soils, Mn content of the limestone is the highest (809mg/ kg), and that of the sandstone is the lowest (319mg/ kg)(P<0.05). The geographical distribution of Mn in soils in Guizhou has the regularity higher in west and lower in east.