@Article{SobralPeiNasRodSil:2015:NaAnIn,
author = "Sobral, Anah{\'{\i}} Chimini and Peixoto, Anna Silvia Palcheco
and Nascimento, Victor Fernandez and Rodgers, John and Silva,
Alexandre Marco da",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Estadual Paulista (UNESP)} and {Instituto Nacional
de Pesquisas Espaciais (INPE)} and {Mississippi State University}
and {Universidade Estadual Paulista (UNESP)}",
title = "Natural and anthropogenic influence on soil erosion in a rural
watershed in the Brazilian southeastern region",
journal = "Regional Environmental Change",
year = "2015",
volume = "15",
number = "4",
pages = "709--720",
keywords = "Land cover change, human disturbance, land use sustainability,
soil erosion indicators.",
abstract = "Human activities have been driven land cover, provoking
acceleration of the erosive process and alteration on the soil
characteristics. To explore the effects of human disturbance, we
investigated the influences of natural and anthropogenic features
on soil quality and soil erosion indicators (EI) within a
Brazilian rural watershed located in Bauru Municipality, State of
Sao Paulo. A pre-established set of soil EI was used to evaluate
the influence of anthropogenic land cover categories on the
presence and severity of erosion, related with spatial variations
of soil attributes. On-site visits were carried out to measure the
occurrence and the intensity of eleven separate EI values and to
collect undisturbed topsoil samples for subsequent analyses. We
registered 17 occurrences of EIs, distributed in ten locals.
Occurrence and intensity of EIs were related to degree of sheet
erosion. The EI qualities were more strongly associated with land
cover management practices than to local topographic features. The
occurrence of EIs and characteristics of soil and soil organic
matter (SOM) were not significantly self-correlated. Although land
cover class seems to influence soil properties and SOM attributes,
we observed that the granulometric composition of the soils also
contributes to the structural characteristics of the soil and
consequently to the dynamic loss and gain of soil carbon. Sites
covered with natural remnant vegetation (NRV) store 96.5 Mg ha-1
of C and grassy and tilled soils stored more C than NRV, 100.1 and
142.4 Mg ha-1 , respectively. Due to the influence of soil texture
over the soil C dynamic, we observe that in Bauru, pastured areas
have high potential for sequestration of C if factors such as fire
and/or erosion were avoided or effectively controlled. Results
from this study show that human disturbance substantially affects
soil properties within of southeastern region of Brazil.",
doi = "10.1007/s10113-014-0667-z",
url = "http://dx.doi.org/10.1007/s10113-014-0667-z",
issn = "1436-3798 and 1436-378X",
label = "lattes: 3373815361504494 3 SobralPeiNasRodSil:2014:NaAnIn",
language = "en",
targetfile = "sobral.pdf",
urlaccessdate = "28 abr. 2024"
}