Changes in hydrology and salinity accompanying a century of agricultural conversion in Argentina
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Date
2011
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Abstract
Soil coring and geoelectrical profiling confirmed the presence of spatially extensive salt accumulations in dry woodlands and pervasive salt losses in areas converted to agriculture. Similarities between the research findings and those of the dryland salinity problems of deforested woodlands in Australia suggest an important warning about the potential ecohydrological risks brought by the current wave of deforestation in the Espinal and other regions of South America and the world. Geophysical and soil coring data provide a clear picture of changes in the subsurface, highlighting the impact of agriculture on soil salinity, water availability, and recharge.
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Journal Article (peer-reviewed)
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Keywords
AGRICULTURE, DEFORESTATION, ECOHYDROLOGY, ESPINAL PROVINCE, ARGENTINA, GROUNDWATER RECHARGE, LAND USE CHANGE, SALINITY, SALT LEACHING, SEMI-ARID REGIONS, SOIL RESISTIVITY IMAGING, SOUTH AMERICA