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Forest Floor Development in Reclaimed Boreal Forest Soils of Northern Alberta.

机译:艾伯塔省北部的复垦北方森林土壤的林地发育。

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摘要

Following oil extraction by surface mining, sites are reclaimed by reconstructing soils using salvaged organic and mineral materials, and planted to native tree species. This study assessed the influence of stand type (Populus tremuloides Michx., Pinus banksiana Lamb, and Picea glauca (Moench) Voss) on forest floor development, soil organic matter composition, and microbial community composition in 32 sites reclaimed 16 to 33 years ago. In three sites, spatial variability in soil nutrients was examined. P. tremuloides stands fostered more rapid forest floor development than coniferous stands, showed changes in soil organic matter composition with time that reflected inputs from the canopy, and was the only stand type with relationships between the canopy, forest floor, and all macronutrients. Furthermore, microbial community composition in reconstructed soils differed among stand types when canopy cover was above 30%. Canopy cover and stand type are important for reestablishment of plant-soil relationships at these reclaimed sites.
机译:通过地面采矿进行采油后,通过使用残存的有机和矿物材料重建土壤来开垦土地,并种植成本地树种。这项研究评估了16至33年前开垦的32个林分类型(林杨,松柏和青冈(Moench)沃斯)对林地发育,土壤有机质组成和微生物群落组成的影响。在三个地点,检查了土壤养分的空间变异性。 tremuloides林分比针叶林更能促进林地的生长,并显示出土壤有机质组成随时间的变化,反映了林冠的输入量,并且是唯一与林冠,林底和所有常量养分之间存在联系的林分类型。此外,当冠层覆盖率超过30%时,不同林分类型的重建土壤中的微生物群落组成也不同。盖层和林分类型对于在这些填海区重建植物与土壤的关系很重要。

著录项

  • 作者

    Sorenson, Preston.;

  • 作者单位

    University of Alberta (Canada).;

  • 授予单位 University of Alberta (Canada).;
  • 学科 Agriculture Forestry and Wildlife.;Agriculture Soil Science.
  • 学位 M.Sc.
  • 年度 2011
  • 页码 126 p.
  • 总页数 126
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 老年病学;
  • 关键词

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