Land-Use Effect on Soil Carbon and Nitrogen Stock in a Seasonally Dry Tropical Forest

Land-Use Effect on Soil Carbon and Nitrogen Stock in a Seasonally Dry Tropical Forest

Blog Article

Total organic carbon (TOC) and total nitrogen (TN) concentration in the soil are an indicator of soil degradation.To understand how land-use may impact tallarn sand these concentrations in seasonally dry tropical forests (SDTF), we analyzed the effect of four land-uses on TOC stocks (STK.TOC) and TN stocks (STK.TN) in a semi-arid region of Brazil.Soil samples were collected in 12 trenches (three sites × four land-uses—dense caatinga (DC), open caatinga (OC), pasture (PA) and agriculture (AG)), in the 0−10; 10−20 and 20−30 cm layers or as far as the bedrock.

The data were compared by the Kruskal−Wallis test (p ≤ 0.05) and similarity investigated by cluster analysis.STK.TOC and STK.TN the surface layer (0−10 cm) showed no significant difference (p ≤ 0.

05) between the DC; OC and PA land-uses.The similarity in STK.TOC and STK.TN values between DC, OC and PA, indicate that it is possible to explore SDTF gary anderson phase 4 to produce biomass and protein by adopting open caatinga and pasture land uses on Neosols with very low TOC stocks.The greatest reduction in STK.

TOC and STK.TN in the agriculture land-use may lead to soil degradation and contribute to the addition of CO2 to the atmosphere.