@Article{GomesSiDaSoFoOm:2019:InSoNu,
author = "Gomes, Luciene and Sim{\~o}es, Silvio J. C. and Dalla Nora, Eloi
Lennon and Sousa Neto, Er{\'a}clito Rodrigues de and Forti, Maria
Cristina and Ometto, Jean Pierre Henry Balbaud",
affiliation = "{University of Leeds} and {Universidade Estadual Paulista (UNESP)}
and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Agricultural expansion in the Brazilian Cerrado: Increased soil
and nutrient losses and decreased agricultural productivity",
journal = "Land",
year = "2019",
volume = "8",
number = "1",
pages = "e12",
month = "Jan.",
note = "{Pr{\^e}mio CAPES Elsevier 2023 - ODS 2: Fome zero e Agricultura
sustent{\'a}vel} and {Pr{\^e}mio CAPES Elsevier 2023 - ODS 8:
Trabalho decente e crescimento econ{\^o}mico} and {Pr{\^e}mio
CAPES Elsevier 2023 - ODS 15: Vida terrestre}",
keywords = "soil erosion, land use change, food production, food security,
crop productivity, nitrogen, phosphorus, Brazil, RUSLE, GIS.",
abstract = "While food and nutrition security are issues that national and
international organizations are tackling, one of the central
problems often overlooked is the essential role of soils in
providing nutritious food. Soils are the base for food production
and food security. However, the majority of soils are in fair and
poor conditions, with the most significant threats being erosion
and loss of nutrients. In this study, we estimate the potential of
soil loss, agricultural productivity loss, and nutrient loss for
Brazils most important agricultural region, the Brazilian Cerrado,
for the years 2000 and 2012. For this, we applied the Revised
Universal Soil Loss Equation (RUSLE) model integrated with a
geographical information system (GIS) to estimate annual soil loss
rate and agricultural productivity loss, and used total nitrogen
and total phosphorus in soil to estimate the annual nutrient loss
rate caused by soil loss. All model factors and data were obtained
from the literature. The results show that agricultural expansion
in the Brazilian Cerrado is increasing the area of severe erosion,
occasioning agricultural productivity decrease and soil nutrient
depletion. The annual soil loss rate increased from 10.4 (2000) to
12.0 Mg ha\−1 yr\−1 (2012). Agricultural
productivity loss occurred in more than 3 million hectares of
crops and silviculture in 2000 and in more than 5.5 million
hectares in 2012. Severely eroded areas lost between 13.1 and 25.9
times more nutrients than areas with low and moderate soil loss
rates. These findings show that government policy should be
directed to ensure the sustainable use of soils, mainly in
agriculturally consolidated regions of the Brazilian Cerrado.",
doi = "10.3390/land8010012",
url = "http://dx.doi.org/10.3390/land8010012",
issn = "2073-445X",
language = "en",
targetfile = "gomes_agricultural.pdf",
urlaccessdate = "27 abr. 2024"
}