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The conservation of the quality of the parks and gardens of Barcelona involves carrying out a series of maintenance work in the green areas, which are carried out throughout the year, depending on the vegetative cycle of the different species. Thus, the works aim at both the aesthetic aspects of vegetation - such as the cutting of plant fences - and their good structural and phytosanitary state.
Each park and garden is different and therefore requires specific maintenance. There are many wooded parks and others where shrubs or fences represent a very important part of the vegetation. The surfaces of the lawn beds vary, as does the number of flower clusters, and of course the species that garden each of these green spaces.
Another aspect that determines the maintenance is the typology of the park or garden. Caring for a historic park or garden is not the same as caring for a forest park or an urban park. Each has important specifics. It is for this reason that Parks and Gardens draw up specific maintenance plans for each of the parks and gardens in Barcelona, ​​with special attention to the historic ones, much more fragile than the rest and in which the original landscape structure must be preserved.
These maintenance plans allow you to optimize and plan the resources, both human and technical and material, and to prepare them proceeds to a thorough study of the tasks and needs.

Environmental management
The management model of the parks and gardens - and of all the urban green of Barcelona - is based on the application of sustainability criteria, whose main axes are the rationalization of the maintenance tasks, the optimization of the irrigation and the selection of plant species that adapt to the climate of the city.
Since 2001, Parks and Gardens have been certified with the ISO 14001 certification in the conservation and management of green spaces and public street trees. This certification accredits the development of production processes - in this case, services in the field of urban greenery - following an environmental management system.
This involves a continuous cycle of planning, action, review and improvement of the environmental performance of Parks and Gardens and a voluntary management and audit system, which is carried out annually.
The Biodiversity Atlas is a set of maps that show some of the most important data on biodiversity in Barcelona: the parks, gardens, squares and plant species that live in them, street trees and birds that nest. in the city.

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