Soil Nutrient Analysis of Young Plantations of Three Indigenous Broad-leaved Tree Species in Qipo Forest Farm of Guangxi
The soil nutrient of Castanopsis hystrix, Castanopsis fissa and Acrocarpus fraxinifolius young plantations established in Qipo forest farm of Guangxi were studied. The following results were achieved: 1) Establishment of plantations of these three indigenous species could significantly enhance the nutrient contents in soil, there were significant difference on organic matter, available N, available B, available Mn and available Fe between different tree species; 2) The maximum and minimum variation coefficients were Mn content and pH, which were 115. 60 % and 4. 34 % respectively; 3 ) There were both mutual promotion and mutual antagonism among soil nutrient elements ; 4) The contents of organic matter and nitrogen were abundant, the contents of available P and available K were relatively poor, the contents of available Cu and Mn were very poor, the available Zn and B were medium or slightly low, and the content of available Fe was too high.
broad-leaved tree speciesCastanopsis hystrixCastanopsis fissaAcrocarpus fraxinifoliussoil nutrient