Geochemical evaluation of soil quality in north area of Taigu County,Central Shanxi
Through a 1∶250 000 multi-target regional geochemical survey,sampling and testing,27 indices of topsoil in the north area of Taigu County,Central Shanxi are obtained to study their distribution characteris-tics and evaluate soil quality according to relevant standards.The result indicates that soil nutrients in the north area of Taigu County are predominantly moderate to deficient,accounting for 94.20%of the entire study area.The overall soil environmental quality is rated as Grade I,indicating a clean status.The soil quality in cultivated and garden lands is relatively good,predominantly featuring Grade I(high quality)and Grade Ⅱ(good quality)soils,which account for 55.70%and 50.84%of the respective land types.The over-all soil quality in the study area is good,with extensive distribution of selenium-rich soils.The local govern-ment should strategically guide local residents to develop selenium-rich agricultural products,creating grea-ter economic value and social benefit.
soil nutrientssoil environmentsoil qualitygeochemical evaluationTaigu County of Central Shanxi