Document


Title

Nutrient transfer to the atmosphere by burning of debris in eastern Amazonia
Document Type: Journal Article
Author(s): J. Mackensen; D. Holscher; R. Klinge; H. Folster
Publication Year: 1996

Cataloging Information

Keyword(s):
  • agriculture
  • Amazon
  • ash
  • Brazil
  • clearcutting
  • fire hazard reduction
  • fire intensity
  • fire management
  • forest management
  • humid tropics
  • land use
  • leaching
  • litter
  • nutrient release
  • nutrients
  • particulates
  • plantations
  • precipitation
  • slash
  • slash and burn
  • slash burning
  • soil leaching
  • South America
  • tropical forests
  • volatilization
Region(s):
  • International
Record Maintained By:
Record Last Modified: June 24, 2018
FRAMES Record Number: 45165
Tall Timbers Record Number: 20634
TTRS Location Status: In-file
TTRS Call Number: Fire File
TTRS Abstract Status: Fair use, Okay, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

After replacement of tropical primary forests, fire becomes an important management tool. During establishment of plantations with fast-growing tree species and within slash-and-burn agriculture, the export of macronutrients and other elements to the atmosphere by burning was estimated. Two plots of clearcut 40-year-old and one plot of 7-year-old secondary forest with dry fuel weight 33.5 t ha-1 (plot A1), 95.2 t ha-1 (plot A2) and 31.2 t ha-1 (plot B1) were burnt. Total element losses including volatilisation, particle and leaching exports ranged from 94 to 98% C, 93-98% N, 30-47% P, 30-48% Na, 42-50% K, 13-35% Ca, 21-43% Mg and 66-76% S related to the initial nutrient. For the small-holder site (plot B1) where the drying period lasted 4 weeks with a total precipitation of 9 mm, this loss was to the atmosphere. Significant preburn losses due to leaching were observed on the moister plots (A1, A2) where the drying period lasted 80 days and 101 days with 250 mm and 296 mm precipitation, respectively. Here, element transfer to the atmosphere due to particle transport and volatilisation were 94-98% C, 95-98% N, 27-33% P, 17-23% Na, 16-31% K, 9-24% Ca, 17-34% Mg, 67-68% S of the initial element stock in the burnt debris. © 1996 by Elsevier Science.

Citation:
Mackensen, J., D. Holscher, R. Klinge, and H. Folster. 1996. Nutrient transfer to the atmosphere by burning of debris in eastern Amazonia. Forest Ecology and Management, v. 86, p. 121-128.