Résumé :
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Soil organisms have become a focus of attention for addressing issues of soil quality and health, and ecosystem sustainability. Land managers are challenged to ensure that their actions are beneficial to belowground organisms and processes in the long-term. Research about soil organisms, their populations, roles, and management effects is fragmented and often esoteric. The diversity of soil organisms is tremendous. The principal organisms include bacteria, actinomycetes, fungi, arthropods, nematodes, worms, insects, and mammals. In order to provide a "state-of-the-science" about soil organisms related to management, a symposium was convened to address soil organism functions and processes, management effects on soil organisms and processes, and describe some roles of soil organisms in restoration and applications for land management. The focus of the symposium was on Pacific Northwest forest and rangeland ecosystems.
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