Effects of Burning Harvesting Residues on Soil Chemical and Biological Characteristics Under Agroforestry System With Bracatinga
Keywords:
Revegetation, site sustainability, C on microbe biomass, soil nutrients.Abstract
The effect of burning residues was evaluated on soil chemical and biological characteristics under bracatinga (Mimosa scabrella Bentham) agroforestry system. This system uses to burn residues to assure revegetation of new harvest and to control weeds. Treatments tested were revegetation using fire and without fire and a test plot consisting of native forest. The period of sampling started on May 2002 until August 2003, and soil samplings for chemical and biological analyses were on different dates. Burning harvesting residues of bracatinga increases initially soil nutrient concentration, mainly P in 1 and 2 cm surface soil layers, and influenced the amount of C in the microbe biomass in the first year. Maintaining soil cover with bracatinga harvesting residues, without using fire, may control soil erosion and the nutrients will be slowly released, promoting site sustainability on this forest activity.Downloads
Downloads
How to Cite
Issue
Section
License
The BRAZILIAN JOURNAL OF FORESTRY RESEARCH reserves the right to correct grammar, improve clarity, and impose PFB standard although respecting the author's style.
Final proof version will be sent to the correspondence author.
Published papers will become property of the BRAZILIAN JOURNAL OF FORESTRY RESEARCH.
Published papers may be used by the authors, without previous PFB authorization, allowed when source is cited.
Any mention of trademarks or methods do not imply in its recommended by the Editorial Committee.
The authors are the exclusive responsible for opinions and concepts developed in the manuscript.