Soil fauna indicators for evaluating and comparing the ecological status of recovered forest systems

用于评估和比较恢复森林系统生态状况的土壤动物指标

基本信息

批准号：
533693-2018
负责人：
Lindo, Zoë
金额：
$ 1.82万
依托单位：
University of Western Ontario
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2018
资助国家：
加拿大
起止时间：
2018-01-01 至 2019-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=657679
关键词：
Soil fauna indicators evaluating comparing

项目摘要

Forestry is an important resource industry to Canada's economy and good forest stewardship begins with understanding and implementing sustainable forest harvesting and silviculture best practises. The development of a validated baseline indicator approach for assessing disturbance and recovery of soil biodiversity in forest systems has environmental as well as economic benefits that could be realised across Canada. It is increasingly recognized that clear-cut harvesting (i.e., full stand logging) creates significant and persistent modifications to forest structure and function. Less intensive practices such as partial-cutting within uneven-age management are proposed as an alternative. However, few studies have compared the effects of partial-cut and clear-cut practices at two temporal scales (i.e., short vs. long term). In Québec, forest industry companies such as Groupe Rémabec, urgently need this information to manage mixedwood forests in a more sustainable way. Such assessment could be improved by the use of ecological indicators and notably living organisms such as soil fauna that contribute to essential soil processes of litter decomposition and nutrient cycling. While it is well-established that soil faunal community structure is altered by forest harvesting through compaction, loss of soil organic matter, and other associated soil environmental changes (e.g., modified soil cover, microclimate, and food supply), accurate ecological indicator species have not been previously identified for Canadian forests. In addition, because different geographic locations may contain different species, the identification of functional traits that indicate disturbance or recovery and do not require taxonomic assessments would be particularly beneficial. Our taxonomic expertise allow us to assess species-level traits (e.g., dispersal, fecundity, development rate, body size), examine functional community shifts and identify suites of traits that are associated with disturbance impact (uncut, partial-cut, clear-cut) and community recovery in forests managed by Groupe Rémabec. The resulting product will allow Groupe Rémabec to evaluate the ecological status of recovered forest systems, and offer more sustainable management of Québec mixedwood forests.********

林业是加拿大的经济性的，森林管理始于理解和实施最佳实践的可持续收获和造型。加拿大。 Rémabec迫切需要以一种更可持续的方式进行这种信息。通过压实，土壤有机物的丧失以及其他相关的土壤环境变化（例如，改良的土壤覆盖率，微气候和食物供应）以前尚未确定为加拿大森林的精确生态指标。，识别功能性状的恢复性能，不需要artixical of tarticuarge s（例如，分散，繁殖力，发展速度，体型），检查功能性造成的态度并确定特征性状的套件由Rémabec组成的森林中的剪切，清晰的康复和社区恢复。 *