INVESTIGADORES
GASPARRI Nestor Ignacio
congresos y reuniones científicas
Título:
The farming transformationin the dry chaco of Argentina and the climatic jump
Autor/es:
PAOLASSO PABLO; FERRERO M. EUGENIA; GASPARRI N. IGNACIO; KRAPOVICKAS JULIETA
Lugar:
Mérida, Yucatán, México
Reunión:
Simposio; International Symposium-Workshop "Biodiversity and Climate Change: Adaptation of Land Use Systems; 2009
Institución organizadora:
GAInBINet/ReCALL, CeTSAF Georg-August-Universität Göttingen, Universidad Autónoma de Yucatán, Universidad Autónoma de Nuevo León, México
Resumen:
In the 1950´s, and
with greater emphasis since 1970, has been detected in large part of
Argentina and especially in the vast Chaco plain a "positive climate
jump". This has had a major impact on natural and man-made ecosystems.
The changes associated with the new demands of international markets for
food, enabled the launching of new agricultural activities, especially
soybean crops, which advanced displacing other crops and primarily to
natural forest.
The aim of this paper is to analyze the changes in land use under the
observed climate jump in the Dry Chaco of Argentina in the last decades.
Using data from the official network of meteorological stations show the
long-term variations in precipitation and temperature in the Dry Chaco
region of Argentina, that covers part of the provinces of Salta,
Formosa, Chaco, Tucuman and Santiago del Estero,
in northern Argentina. We are also considering changes in land use with
data coming from the national agricultural census.
The results show that the climate jump in the Dry Chaco is associated
with an important advance of the agriculture, including oilseeds and
grains, which together increased by almost 442,000 hectares the area
under cultivation between 1988 and 2002. In return, the deforested area
was almost 910,000 hectares.