Results 101 to 110 of about 305 (123)
GRASS SEEDS BANK IN ENCROACHMENTS OF CALDEN RANGELAND SUBJECTED TO SELECTIVE ROLLER-CHOPPING
Semiárida: Revista de la Facultad de Agronomía UNLPam, 2018 openaire +1 more source
Rangeland Ecology and Management, 2019 Abstract Management impacts and natural events can produce ecosystem state changes that are difficult to reverse. In such cases, a detailed understanding of drivers, thresholds, and feedback mechanisms are needed to design restoration interventions. The Caldenal ecoregion in central Argentina has undergone widespread state change, and restoration is ...
Brandon T Bestelmeyer
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Effect of Climoedaphic Heterogeneity on Woody Plant Dominance in the Argentine Caldenal Region
Rangeland Ecology and Management, 2018 Woody plant encroachment is widespread throughout drylands of the world, but rates and patterns of encroachment at the regional scale can be mediated by soil and climate. Climoedaphic properties may therefore help to explain patterns of woody plant dominance.
Lauren N Švejcar, Brandon T Bestelmeyer
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Acta Oecologica, 2007 Fire and grazing can modulate feedbacks between pools of carbon and nitrogen of plant and soil, altering cycles of these elements in grassland ecosystems. The magnitude of these effects may be limited by climate and by limited plasticity in tissue chemistry within a given photosynthetic pathway. We tested the hypotheses that (1) fire reduces rates of C
Roberto A Distel +2 more
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Range management and production on the fringe: The Caldenal, Argentina
Journal of Rural Studies, 1996Abstract North American problems in coming to terms with the management of the semi-arid Plains environment are well known. Less documented are those of Argentina's equivalent on the fringe of the Humid Pampas. Argentine agricultural aid and research has been focussed on the Humid Pampas, and little understanding of the special problems of the dry ...
Arthur Morris
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The Caldenal ecosystem: Effects of a prescribed burning on soil chemical properties
Arid Land Research and Management, 2016ABSTRACTBefore and after a prescribed burning, the upper 2.5 cm of soil in patches of forage, nonforage, and shrub vegetation were sampled. Then, bulk density, gravimetric moisture, pH in water, available phosphorus, exchangeable cations, cationic exchange capacity, total nitrogen, total, particulate, and mineral organic carbon contents were determined.
María Sofía Larroulet +4 more
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Applied Geography, 2012
Protected areas are critical for conservation of the world's biodiversity; however, parks isolated from their surroundings will not assure the maintenance of biodiversity and ecosystem integrity. Private lands have the potential to achieve the dual role of conserving natural habitats while providing goods and services societies need.
Mariano González-Roglich +2 more
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Protected areas are critical for conservation of the world's biodiversity; however, parks isolated from their surroundings will not assure the maintenance of biodiversity and ecosystem integrity. Private lands have the potential to achieve the dual role of conserving natural habitats while providing goods and services societies need.
Mariano González-Roglich +2 more
exaly +2 more sources
SOIL DEGRADATION RELATED TO OVERGRAZING IN THE SEMI-ARID SOUTHERN CALDENAL AREA OF ARGENTINA
Soil Science, 2001The aim of the present study is to determine quantitatively the magnitude of the structural changes that occur in the soil during the degradation process affecting natural grassland in the semi-arid ecosystem of the southern area of the District of the Calden, Argentina.
Maria B Villamil
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Influencia de las leñosas en la producción forrajera de gramíneas nativas en el Caldenal [PDF]
Agro UNS, 2021 El efecto del caldén y la jarilla sobre la producción de biomasa aérea de flechilla negra y flechilla grande es especifico de las especies, alertando sobre qué especies leñosas deberían ser controladas y el grado de control a alcanzar en las mismas sin ...
Blazquez, Francisco Ruben +3 more
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