Sustainable Forest Management and Global Climate Change
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Sustainable Forest Management and Global Climate Change

Selected Case Studies from the Americas

Edited by Mohammed H.I. Dore and Rubén Guevara

The UN Framework Convention on Climate Change recognises that, in the formulation of a global strategy for reducing global emissions of carbon (the main factor in global warming) forests could play an important role. This book highlights that role and demonstrates how the forests of the world may be harvested judiciously and sustainably. The authors argue that the forests are more than just a source of timber and wood; they discuss the role that forests play in reducing global warming, in preventing soil erosion and in helping to minimise the loss of biodiversity. Drawing on the expertise of contributors associated with the analysis of forests, this book is an in depth and fascinating discussion as well as a policy guide for the sustainable management of forests.
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Chapter 3: Carbon storage in soils and vegetation among forested ecosystem types in northern Ontario

Mark Johnston and Peter Uhlig


Mark Johnston and Peter Uhlig INTRODUCTION Carbon (C) storage has received increased attention as the reality of global warming is recognized (Houghton et al., 1996). Forests in northern latitudes are thought to play an important role in global C storage (Tans et al., 1990; Fan et al., 1998) and may be disproportionately affected as global warming intensifies (Pastor and Post, 1988; Kirschbaum and Fischlin, 1996). The boreal forest is the world’s largest depository of C (Dixon et al., 1994), yet estimates of C storage for this biome are generally lacking. Botkin and Simpson (1990) and Kurz et al. (1992) presented C storage data for boreal forest regions, but these were for large, continent-wide areas. Some sitespecific estimates are available (for example, Halliwell et al., 1995; Nalder and Merriam, 1995), but knowledge of how C is distributed among ecosystem types within the boreal forest is generally poor. We present estimates of C storage in soils and vegetation among 11 ecosystem types in a 180 000 km2 area of northern Ontario that was intensively sampled during the development of the Ontario Forest Ecosystem Classification (FEC) system (Sims et al., 1997). We compare these estimates with estimates of vegetative C storage for the same area taken from the most recent Forest Resource Inventory data for the Province of Ontario (Callaghan, 1993). METHODS Study Area and Sample Design The area sampled is shown in Figure 3.1. It spans most of the northwest portion of Ontario, extending from the Manitoba border in...

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