TY  - SER
AU  - Almeida, Cicero Lima de 
AU  - Araújo, José Carlos de 
AU  - Costa, Mirian Cristina Gomes 
AU  - Almeida, Aldênia Mendes Mascena de 
AU  - Andrade, Eunice Maia de 
TI  - Fallow Reduces Soil Losses and Increases Carbon Stock in Caatinga
KW  - RECUPERAÇÃO DO SOLO
KW  - USO DA TERRA
KW  - ESCOAMENTO
KW  - POUSIO
KW  - CAATINGA
N1  - Publicação on-line; 35 ref.; 3 tables; 2 illus.; Summary (En)
N2  - 

ABSTRACT

This study aimed at evaluating whether 10 years of fallow was sufficient to restore a degraded
hillslope in the semi-arid Caatinga biome, Brazil. For this purpose, runoff, erosion, loss of
nutrients and organic carbon were measured on two comparable hillslopes: one was left fallow
and the other degraded caused by overgrazing. Fallow management reduced runoff (36%), soil
loss (65%) and organic carbon loss (81%) in comparison with the degraded hillslope. However,
the fallow did not significantly reduce nutrient loss. Animal grazing has been shown to influence
the nutrient cycle in the soil. The loss of organic carbon shows significant correlation with the
loss of other nutrients, and may be used to estimate nutrient loss. Results show that a decade of
fallow did not promote significant changes in the loss of nutrients, but was enough to reduce
runoff, erosion and loss of organic carbon.

Keywords: soil recovery, land use, runoff, semi-arid
UR  - https://www.scielo.br/j/floram/a/RXyTG5C4w7tmyxWVVDyRkpx/?format=pdf&lang=en
ER  -