Weed control and light and water competition in the establishment of a natural stand of Pinus patula in Mexico

  • G. Angeles Colegio de Postgraduados Programa Forestal
  • A. Velazquez Colegio de Postgraduados Programa Forestal
  • J. Vargas Colegio de Postgraduados Programa Forestal
  • J. Velazquez Colegio de Postgraduados
Keywords: Weeds, Pinus patula, competition, weed control, soil water content, water potential, photosynthetically active radiation

Abstract

This study was conducted in a natural regeneration area of Pinus patula to evaluate the effect of weed competition on photosynthetically active radiation, soil water content, and plant water potential in a two year-old Pinus patula seedlings. Using a complete randomized experimental design trhee treatments of weed control, consisting in manual weed control every two, four and six months, were tested against no weed control. Results indicated that a high weed density in the stand decreased the soil water moisture, the low levels of water negatively affecting the water potential in Pinus patula seedlings, particularly during the dry season. A high weed density caused a dramatic reduction of the photosynthetically active radiation reaching the soil, thus increasing the light competition between pine seedlings and weeds.

Downloads

Download data is not yet available.
Published
1997-12-01
How to Cite
AngelesG., VelazquezA., VargasJ., & VelazquezJ. (1997). Weed control and light and water competition in the establishment of a natural stand of Pinus patula in Mexico. Forest Systems, 6(1), 133-145. https://doi.org/10.5424/580
Section
Research Articles