Distribution, characteristics and utilization of problem soils in Thailand International symposium on distribution, characteristics and utilization of problem soils

acid soils affectation de ressources agentes nocivos asia asie bog soils chemical soil types chemicophysical properties desarrollo de recursos deterioro del suelo ecological soil types environment environnement facteur nuisible genetic soil types injurious factors inorganic compounds land use lithological soil types medio ambiente peat soils resource allocation resource development sales salts sandy soils sel site factors sodic soils soil deterioration soil physicochemical properties soil types soil zonation sol acide sol caillouteux sol sableux sol sodique sol tourbeux stony soils suelo arenoso suelo pedregoso suelo turboso sulfate sulfatos sulphates tailandia textural soil types thailand tipos texturales de suelos type de sol type de sol chimique type de sol lithologique type de sol textural utilisation du sol vertisol vertisoles vertisols