Abstract

LORES, A; LEYVA, A  and  TEJEDA, Tamara. Evaluación espacial y temporal de la agrobiodiversidad en los sistemas campesinos de la comunidad “Zaragoza” en La Habana. cultrop [online]. 2008, vol.29, n.1, pp. 3-10. ISSN 0258-5936.

A specific diagnosis on agricultural crops and their spatial and temporary behavior was conducted in farmer agroecosystems from Zaragoza community in San José de las Lajas, during the period between May, 2004 and December, 2006. Thus, 15 farms representing 20 % of farmer community systems were selected. Data were collected by direct counting and participatory techniques, such as formal surveys and growers’ interviews. Inventoried species were taxonomically classified and arranged into groups according to their use and profitable value. A total of 104 plant species were found, distributed in 39 families; 86 of them are managed by farmers and 18 are associated species, mainly weeds. Mean values of richness, diversity and similarity were calculated through ecological indexes. Specific richness within a range from 5 to 34 species was considered mid to low and a low general diversity index. Similarity index showed very low values with an average of 0.41, indicating a great variation of species cultivated in each agroecosystem. Predominating crop groups were fruit trees, horticultural and grain crops with 25, 12 and 10 species, respectively.

Keywords : agroecosystem; biodiversity; plant ecology.

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