How to translate text using browser tools
1 November 2009 The Effects of Forest Harvest Operations on Mercury and Methylmercury in Two Boreal Streams: Relatively Small Changes in the First Two Years prior to Site Preparation
Rasmus Sørensen, Markus Meili, Lars Lambertsson, Claudia von Brömssen, Kevin Bishop
Author Affiliations +
Abstract

Forest harvest is hypothesized to increase the mercury (Hg) load in aquatic ecosystems. The Balsjö paired catchment study examined the outputs of methylmercury (MeHg) and total mercury (Hgtot) from two boreal catchments during the 2 y following forest harvest but prior to site preparation. This enabled us to separate the effect of the two operations that followed best management practices. Hgtot concentrations increased by approximately 15%, and fluxes by 20–30%. The MeHg concentrations and fluxes either declined or increased by up to 60%, depending on whether annual MeHg peaks during summer low flows were considered to have been influenced by forest harvest. The lack of a severalfold increase in Hg outputs after forest harvest, as reported from other sites, may be the result of minimal soil disturbance during the winter forest harvest operations. If so, there may be a greater Hg response after soil scarification to prepare for planting.

Rasmus Sørensen, Markus Meili, Lars Lambertsson, Claudia von Brömssen, and Kevin Bishop "The Effects of Forest Harvest Operations on Mercury and Methylmercury in Two Boreal Streams: Relatively Small Changes in the First Two Years prior to Site Preparation," AMBIO: A Journal of the Human Environment 38(7), 364-372, (1 November 2009). https://doi.org/10.1579/0044-7447-38.7.364
Published: 1 November 2009
JOURNAL ARTICLE
9 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

RIGHTS & PERMISSIONS
Get copyright permission
Back to Top