Document


Title

Solute dynamics in soil water and groundwater in a central Amazon catchment undergoing deforestation
Document Type: Journal
Author(s): Michael R. Williams ; Thomas R. Fisher ; John M. Melack
Publication Year: 1997

Cataloging Information

Keyword(s):
agriculture; Amazon; Amazon; Brazil; CATCHMENTS; deforestation; deforestation; erosion; forest management; groundwater; hydrologic pathway; hydrology; nitrogen; nitrogen; permeability; phosphorus; precipitation; rainforest; rainforests; slash and burn; slash-and-burn agriculture; soil moisture; soils; solutes; South America; statistical analysis; Tropical; tropical forests; water; watershed management
Region(s):
International
Record Maintained By:
Record Last Modified: November 9, 2018
FRAMES Record Number: 45176
Tall Timbers Record Number: 20647
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

Hydrochemical changes caused by slash-and-burn agricultural practices in a small upland catchment in the central Amazon were measured. Solute concentrations were analysed in wet deposition, overland flow, shallow throughflow, groundwater, and bank seepage in a forested plot (~5 ha) and an adjacent plot (~2 ha) which had been deforested in July 1989 and planted to manioc, and in stream water in partially deforested and forested catchments. Measurements were made from November 1988 to June 1990. The effects of slash-and-burn agricultural practices observed in the experimental plot included increased overland flow, erosion, and large losses of solutes from the rooted zone. Concentrations of NO3-, Na+, K+,

Citation:
Williams, M. R., T. R. Fisher, and J. M. Melack. 1997. Solute dynamics in soil water and groundwater in a central Amazon catchment undergoing deforestation. Biogeochemistry, v. 38, p. 303-335.