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| Contreras Rodríguez, Israel. |
| El presente estudio se realizo con la finalidad de conocer el manejo y el uso de los acahuales en la unidad de manejo forestal 2708CE Centro, Tabasco que incluye a los municipios de (Centro, Jalapa, Centla, Macuspana, Tacotalpa y Teapa). Un total de 79 acahuales fueron ubicados, se aplicaron preguntas informales a los dueños de los predios, delegados y personas oriundas de la comunidad. Para el análisis de la diversidad de usos y determinación del índice de valor de importancia se seleccionaron tres acahuales, dos ubicados en Macuspana y uno en el Centro, por ser los de mayor representatividad en la unidad de manejo. El levantamiento de especies en cuadrantes de 10m X 50m (500m2) en cada acahual tuvo registro total de individuos, especies así como el... |
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Palavras-chave: Acahuales; Manejo forestal; Vegetación secundaria; Forest management; Secondary vegetation; Maestría Tecnológica; Sistemas Sustentables de Producción en el Trópico. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/316 |
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| Rojas,Aldo Bernal; Castaño-Meneses,Gabriela; Palacios-Vargas,José G.; García-Calderón,Norma E.. |
| The objective of this work was to compare the oribatid mite and springtail communities in three plots with different soil use - Coffee (CP), secondary vegetation or fallow fields (acahual, A) and a cloud mountain forest (CMF) - within a coffee plantation located in Santa Maria Huatulco, Oaxaca State, Mexico. In each plot 20 samples (10 of soil, 10 of litter) were taken and processed in Berlese funnels. The extracted fauna was preserved in 70% ethanol. A total of 3,031 oribatid mites belonging to 33 species, and 1,177 specimens of springtails belonging to 43 species, were collected. The number of species recorded was: 27 at CP (14 oribatids; 13 springtails), 44 at A (19 oribatids; 25 springtails) and 62 at CMF (32 for each group). A total of 26 oribatid and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Biodiversity; Cloud mountain forest; Collembola; Litter; Microarthropods; Secondary vegetation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800030 |
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| Lopes,Elessandra Laura Nogueira; Fernandes,Antonio Rodrigues; Lourdes Pinheiro Ruivo,Maria de; Cattanio,José Henrique; Souza,Gladys Ferreira de. |
| The increase in agricultural production in the Brazilian Amazon region is mostly a result of the agricultural frontier expansion, into areas previously influenced by humans or of native vegetation. At the same time, burning is still used to clear areas in small-scale agricultural systems, leading to a loss of the soil productive capacity shortly after, forcing the opening of new areas. This study had the objective of evaluating the effect of soil preparation methods that involve plant residue shredding, left on the surface or incorporated to the soil, with or without chemical fertilization, on the soil chemical and biological properties. The experiment was conducted in 1995, in an experimental field of Yellow Latosol (Oxisol) of the Embrapa Amazônia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Secondary vegetation; Burning; Biomass shredding; Cultivation cycles. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400006 |
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