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Mariana Edith Marasas

Bio: Mariana Edith Marasas is an academic researcher from National University of La Plata. The author has contributed to research in topics: Agroecology & Urbanization. The author has an hindex of 7, co-authored 32 publications receiving 231 citations.

Papers
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Journal ArticleDOI
TL;DR: It is concluded that tillage systems affect not only the abundance of arthropod fauna but also the proportion between different functional groups, and the consequences for soil quality are discussed later on.

79 citations

Journal ArticleDOI
TL;DR: In this article, the authors evaluate the risks involved when traditional agricultural management practices are applied to different ecological settings while the underlying ecological principles of those practices are not well understood, and suggest that traditional management practices may be ecologically sound when considered within their original ecological context, but may be inappropriate in new ecological settings.

66 citations

Journal ArticleDOI
TL;DR: Changes in edaphic carabidofauna abundance in a wheat crop plot, its field margins, and four semi-natural adjacent habitats were evaluated, finding a low specific richness of carabids was found in the wheat crop.
Abstract: Changes in edaphic carabidofauna abundance in a wheat crop plot, its field margins, and four semi-natural adjacent habitats were evaluated. A low specific richness of carabids was found in the wheat crop. No species was found exclusively in the wheat plot, but there were species found in the surrounding habitat. The observed responses of different species regarding moisture conditions determined their presence or absence in these semi-natural habitats as well as in dominance structures of each particular ambient. A gradual decrease in the number of captured individuals from the field margin to the center of the wheat plot was observed. Semi-natural habitats and field margins become an important requirement for habitat and shelter of the best represented species of ground beetles, particularly for predatory and omnivorous varieties.

26 citations

Journal ArticleDOI
TL;DR: Agroecology emerged as a new approach and paradigm of agricultural science to provide strategies for the design, evaluation, and management of sustainable agroecosystems.
Abstract: Agroecology emerged as a new approach and paradigm of agricultural science to provide strategies for the design, evaluation, and management of sustainable agroecosystems. It arose as a reaction to the consequences of an environmentally unsustainable and socially exclusive production model. Due to its multidisciplinary and pluri-epistemological character, its scientific approach as a movement, and a series of strategies and techniques, the incorporation and consolidation of agroecology in Argentina recognizes different goals, actors, and stages. The role of nongovernmental organizations, governmental institutions, universities, other educational institutions, and farmers’ organizations is analyzed, and the potential and limitations for future expansion are discussed.

14 citations

DOI
01 Apr 2013
TL;DR: Perez et al. as mentioned in this paper analyzed the relationship between agro-ecological management practices in horticulture and different regulating services to farm scale, and established a framework that facilitate technicians, researchers and policy makers, advancing technological alternatives that promote agroecological transition processes.
Abstract: Perez, M., Marasas, M.E. (2013). Regulating services and management practices: contributions to horticulture with agroecological bases. Ecosistemas 22(1):36-43. Doi.: 10.7818/ECOS.2013.22-1.07 The importance of agroecological management practices has been widely discussed in the literature. The relationship between these practices and the regulating services in agroecosystems is an essential contribution to the development of sustainable production systems. This paper analyzes the relationship between agroecological management practices in horticulture and different regulating services to farm scale. It aims to establish a framework that facilitate technicians, researchers and policy makers, advancing technological alternatives that promote agroecological transition processes. Knowledge of the interactions between practices and services is necessary for decision making concerning the agro-ecosystems management and biodiversity conservation, particularly in agricultural systems.

14 citations


Cited by
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Journal ArticleDOI
TL;DR: The potential and limitations of conservation agriculture for low productivity, small-scale farming systems in Sub Saharan Africa and South Asia is discussed in this article. But, the authors highlight some research priorities for ecosystem services in conservational agriculture.

658 citations

Journal ArticleDOI
TL;DR: Five additional avenues that agronomic research could follow to strengthen the ecological intensification of current farming systems are proposed, assuming that progress in plant sciences over the last two decades provides new insight of potential use to agronomists.

433 citations

Book ChapterDOI
01 Jan 2012
TL;DR: In this article, a comparative soil quality evaluation is performed in which the performance of the system is determined in relation to alternatives, and the results show that the effect of a reduction in tillage on the variation in total porosity with depth may be related to differences in traffic on different sites, or on soil quality at the time tillage was reduced or stopped.
Abstract: Conservation agriculture has been proposed as a widely adapted set of management principles that can assure more sustainable agricultural production. Conservation agriculture removes the emphasis from the tillage component alone and addresses a more enhanced concept of the complete agricultural system. Applying conservation agriculture essentially means altering literally generations of traditional farming practices and implement use. Within the framework of agricultural production, high soil quality equates to the ability of the soil to maintain a high productivity without significant soil or environmental degradation. A comparative soil quality evaluation is one in which the performance of the system is determined in relation to alternatives. Inconsistent effects of a reduction in tillage on the variation in total porosity with depth may be related to differences in traffic on different sites, or on soil quality at the time tillage was reduced or stopped.

345 citations

Journal ArticleDOI
TL;DR: In this article, the impact of various management practices on soil loss in vineyards was evaluated in small vineyards located in southwestern Slovakia in the Vrable viticultural district, using the levelling method.
Abstract: Vineyards represent one of the most erosion-prone types of cultivated land. Because of this, cultivation practices are very important in reducing the soil erosion risk in vineyard regions. The aim of this paper was to assess the impact of various management practices on soil loss in vineyards. Effects of tillage, hoeing, rotavating and grass cover were evaluated in small vineyards located in southwestern Slovakia in the Vrable viticultural district. Erosion and deposition rates were estimated using the levelling method. This method is based on an evaluation of variability of the soil surface against vineyard poles measured between the year of pole insertion and the year of measurement. On the basis of the measured data, a WATEM/SEDEM distributed soil erosion model was calibrated, and the total soil loss from the vineyards under different management conditions was estimated. The model shows rather good performance in modelling soil erosion, but at the same time, it shows lower reliability in modelling soil deposition. Downslope tilled vineyards were the most eroded; the erosion in rotavated vineyards is somewhat reduced. The most protective tillage system is hoeing. Considerably lower soil loss was estimated with the use of vegetation cover between vine rows, which is in accordance with agro-environmental schemes supporting use of grass cover as an erosion prevention measure in vineyards. Copyright © 2012 John Wiley & Sons, Ltd.

213 citations

Journal ArticleDOI
TL;DR: In this article, the authors used an integrative literature review to investigate key areas of environmental concern currently faced by organisations in the global wine industry, including water use and quality, the generation and management of organic and inorganic waste streams, energy use and the production of greenhouse gas emissions, chemical use, land use issues and the impact on ecosystems.

204 citations