@InProceedings{MartinsTomaRodrSiqu:2017:AsFuCl,
author = "Martins, Minella Alves and Tomasella, Javier and Rodriguez, Daniel
and Siqueira, Paula",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Assessment of future climate impacts on agriculture in the
brazilian semiarid",
year = "2017",
organization = "S{\~a}o Paulo School of Advanced Science on Climate Change:
Scientific basis, adaptation, vulnerability and mitigation",
abstract = "Agricultural production occurs in a scenario of uncertainties
governed, mainly, by the variations in the climate. In this sense,
knowledge of the effects of climate on agricultural production has
become essential to ensure the sustainability of agriculture and
to guarantee food and water security even in the face of climatic
adversities. Such knowledge becomes more important when it is
considering the projections of climate change, especially in
regions which are already vulnerable such as the Brazilian
Semiarid. In this regarding, to know the production and the water
requirements of the crops in the face of possible changes in the
climate, it is a way of anticipating adaptation actions. In this
context, the present work aims to assess the agricultural
production of maize for the Semiarid region of Brazil and to
estimate the water requirements of the crop to obtain potential
productivity, considering present and future climate conditions.
The climate projections used in this work are provided by the
regional atmospheric model Eta-CPTEC and the coupled
atmosphere-ocean global models: HADGEM2. Regarding the scenarios,
we used the RCP scenarios, 4.5 and 8.5 versions, of the Fifth
Assessment Report - AR5. The projection of maize production and
crop water requirements estimates will be based on AquaCrop model
(Stetuto et al. 2009). Before using the climate projections as
direct input to a crop model, we applied bias corrections methods
to eliminate the systematic errors of climate variables and avoid
an unrealistic assessment of impacts. Preliminary results have
shown a satisfactory performance of AquaCrop to simulate maize
yield considering the current climate. By proving the efficiency
of the crop model in simulating maize yield with observed data, it
is possible to extrapolate its estimates considering the future
climate and, therefore, to infer about the future impact on maize
production beyond the future water requirements of maize in the
Brazilian Semiarid.",
conference-location = "S{\~a}o Paulo, SP",
conference-year = "3-15 July",
language = "en",
targetfile = "martins_assessment.pdf",
urlaccessdate = "27 abr. 2024"
}