Weed Communities in Urban Horticultural Productions in the City of Buenos Aires

Volume 2 - Issue 2

Civeira G*, Paglieri L, Martinez P and Carloni C

Received: February 22, 2019;   Published: March 11, 2019

DOI: 10.32474/OAJESS.2019.02.000137

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Abstract

Changes observed in many plant communities are due to the replacement of some species by others over time and due to disturbances, such as management or crop type. The San Justo Training and Demonstration Center is a complex of plots containing a great diversity of vegetables and management methods in the same site, allowing a joint analysis on the effect of different management practices on plant communities. In this sense, the objectives of this work were: 1) To analyze the weed communities in the areas adjacent to the plots destined to different uses in Buenos Aires and 2) To evaluate the degree of maturity of the vegetal communities and different uses in urban horticulture garden. Surveys were carried out in three sectors of the site coinciding with the edges of the plots of the demonstration center. The variables measured were frequency, floristic diversity or richness, coverage of each species and total community coverage in relation to each use (semi-covered fallow, weeding, intensive horticulture and artificial trees). The plot with semi-covered fallow presented a higher frequency of appearance of Lolium multiflorum and Trifolium Repens. In horticultural use a high frequency of Oxalis latifolia and Taraxacum officinale is observed, both species are fertile soil indicators. Lolium multiflorum were found as dominant (in number of individuals) in almost all the samplings. When the disturbances are reduced or are practically zero, the appearance of perennial species is observed, demonstrating a greater advance in the succession process.

Keywords:Urban Agriculture; Ecosystem; Disturbances; Quantitative Measurements

Abstract| Introduction| Materials and Methods| Results and Discussion| Conclusion| References|