Soil N cycling in harvested and pristine Boreal forests and peatlands [An article from: Forest Ecology and Management]

This digital document is a journal article from Forest Ecology and Management, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The heterogeneous Boreal Shield forest in Canada is one of the most extensive pristine forests remaining in the world and is being intensely harvested. We studied the spatial variability of organic and inorganic N cycling processes in three Boreal Shield catchments in northwestern Ontario for 2 years before and 1 year following clearcutting. Net N mineralization rates were similar among upland conifer, upland deciduous and peatland stands, ranging from negligible to 150mgkg^-^1 in the forest floor/peat soils and -30 to 40mgkg^-^1 in mineral soils of the upland stands over the growing season. Net nitrification rates were generally negative,