Integrated cover soils and woody debris impacts on reclaimed forest ecosystems**

综合覆盖土和木质残骸对复垦森林生态系统的影响**

• 批准号: 533377-2018
• 负责人: Pinno, Bradley
• 金额: $ 4.15万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 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=662230
• 关键词: Integrated; cover; soils; woody; debris

The establishment of a functioning forest ecosystem after oil sands mining is a legislated requirement in the boreal forest region of northern Alberta. Applying appropriate land reclamation practices is critical to ensuring that the post-industrial land has an "equivalent land capability" to that of pre-disturbance. This project will quantify the impacts of three reclamation techniques, describe the ecological mechanisms responsible, and develop operational recommendations for implementation, thus contributing to improved land reclamation practices. **We will establish three field based research studies to evaluate the impacts of different reclamation practices on trees, plants and soil. In the first study we will study how an integrated cover soil design where two different types of reclamation soils have been placed on a single reclamation site in a variety of patch sizes and arrangements affects the rate and extent of plant colonization and expansion across the different soil types. The second study will focus on the application of coarse woody debris in the in form of whole logs on the soil surface as a reclamation amendment. We will quantify the impact of logs place systematically across the landscape on the developing plant community and soil nutrients. The final study will describe the abundance and role of woody material buried in reclamation soils, specifically in relation to its impact on nutrient availability. This work is supported by Canadian Natural Resources Limited and will result in improved reclamation practices and the training of three graduate students and three undergraduate students. **

在阿尔伯塔省北部的北方林区，在开采油砂后建立一个功能正常的森林生态系统是一项立法要求。采用适当的土地复垦做法对于确保工业后土地具有与干扰前相同的土地能力至关重要。该项目将量化三种填海技术的影响，描述负责的生态机制，并制定可操作的实施建议，从而有助于改善土地填海实践。**我们会进行三项实地研究，以评估不同的填海方法对树木、植物和土壤的影响。在第一项研究中，我们将研究两种不同类型的复垦土壤以不同的斑块大小和排列放置在同一填海地点的综合覆盖土壤设计如何影响植物在不同土壤类型上的定居和扩展的速度和程度。第二项研究将侧重于将粗木质碎屑以整根原木的形式应用于土壤表面，作为复垦改良剂。我们将量化整个景观中系统放置的原木对发育中的植物群落和土壤养分的影响。最后的研究将描述埋藏在复垦土壤中的木质材料的丰度和作用，特别是与其对养分有效性的影响有关的。这项工作得到加拿大自然资源有限公司的支持，将改善填海实践，并培训三名研究生和三名本科生。**