SciELO - Scientific Electronic Library Online

vol.10 número3Nitrogen and growth promoter: effects on growth and development of green fiber cottonOptimal water interval and yield of soybean cultivars índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados


Revista Brasileira de Engenharia Agrícola e Ambiental

versión impresa ISSN 1415-4366versión On-line ISSN 1807-1929


SOUZA, Maria J. H. de et al. Relationship between water availability and eucalyptus productivity at different ages in Guanhães region, Minas Gerais state. Rev. bras. eng. agríc. ambient. [online]. 2006, vol.10, n.3, pp.629-638. ISSN 1415-4366.

A study concerning the productivity of eucalyptus and the soil water availability was carried out in Guanhães region, Minas Gerais State, Brazil. Evaluations were accomplished for precipitation events occurring over the rainy seasons (PEC), water balance components, annual indices for aridity (Ia), hydric (Ih) and moisture (Im), as well as the monthly periodic increment (IPM), annual average, over the period from 1985 to 1998. The wood productivity was affected by PEC, and the lowest IPM values were observed in the years preceded by either dry rainy season or very dry rainy season, whereas the highest IPM values were observed in those years preceded by rainy season classified as rainy or very rainy one. For periods with increased or decreased PEC, a correlation of this variable with IPM was verified, and a R2 value above 0.80 was obtained. For an increase and reduction of 100 mm in PEC, the IPM showed an increase of 0.51 m3 ha-1 month-1 and a reduction of 0.80 m3 ha-1 month-1, respectively. With some exceptions, higher IPM values were observed in the years subsequent to the years with higher Im and Ih; and in those years preceded by a negative Im, a reduction was verified in IPM. The IPM was higher for the age range from 3 to 5 than for that from 5 to 7 years, whereas the value for the average local index was 28.90.

Palabras clave : forest productivity; sequential water balance; rainy season; moisture indexes; eucalyptus growth rate.

        · resumen en Portugués     · texto en Portugués     · Portugués ( pdf epdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons