Carbon and nitrogen distribution pattern in soil profile cultivated with Eucalyptus
AUTOR(ES)
Wink, Charlote
FONTE
Floresta Ambient.
DATA DE PUBLICAÇÃO
30/09/2019
RESUMO
ABSTRACT The objective of this study was to evaluate the distribution pattern of total organic carbon (TOC) and total nitrogen (TN) in the native field soil profile and Eucalyptus sp. The study was carried out in native field and in eucalyptus plantations with 20, 44, 180 and 240 months, located in Santa Maria and Manoel Viana, RS, Brazil. The decay rate (k) of the TOC and TN contents up to 1.2 m depth was determined by the graphical, numerical and mathematical method using the third order negative exponential model. The content of TOC and TN deep in the soil showed a third order negative exponential distribution. However, the methods used to estimate the decay rate generate differences in TOC and TN contents along the soil profile.
Documentos Relacionados
- Leaching of nitrogen, potassium, cacium and magnesium in a sandy soil cultivated with sugarcane.
- Nitrogen forms, pH and total carbon in a soil incubated with treated sewage effluent
- Fertilization and Irrigation Affect Soil Carbon under Eucalyptus Plantation in the Cerrado
- Exchangeable basic cations and nitrogen distribution in soil as affected by crop residues and nitrogen
- Potassium adsorption in soil cultivated with sugarcane