Green tree retention as a tool to maintain soil microbial diversity and function after harvest

绿树保留作为收获后维持土壤微生物多样性和功能的工具

• 批准号: 357060-2007
• 负责人: Grayston, Susan
• 金额: $ 6.96万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects Supplemental Competition
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=432106
• 关键词: Green; tree; retention; tool; maintain

This project will investigate whether retention of living 'green-trees' on harvested sites may minimize the effect of disturbance caused by harvesting on forest ecosystems, and help conserve soil biodiversity and functioning. We will identify the soil organisms and processes most sensitive to human utilization of forests, and how these can be preserved. Soil organisms have a vital role in nutrient cycling, so preservation of a healthy, functioning soil biotic community is essential for ecosystem function. Currently, only retention of coarse woody debris and limitation of forest floor removal are recommended to protect soil organisms after harvest. However, a more suitable management treatment may be preservation of green tree retention patches on harvested sites, which would provide soil organisms with a living, continually replenishing source of energy from their roots and litter. The effect of harvesting on soil organisms and associated functions is a critical knowledge gap that

该项目将调查在采伐现场保留活的“绿树”是否可以最大限度地减少采伐对森林生态系统造成的干扰，并有助于保护土壤生物多样性和功能。 我们将确定对人类利用森林最敏感的土壤生物和过程，以及如何保护它们。土壤生物在养分循环中起着至关重要的作用，因此保持健康、功能正常的土壤生物群落对生态系统功能至关重要。目前，只有保留粗糙的木质残体和限制森林地面的清除，以保护收获后的土壤生物。然而，一个更合适的管理处理可能是保存绿色树木保留补丁的收获的网站，这将提供一个活的，不断补充能源的土壤生物从他们的根和凋落物。收割对土壤生物及其相关功能的影响是一个关键的知识差距，