Well-Site reclamation in the forest: restoring pine, boreal mixedwoods and peatlands

森林井址复垦：恢复松树、北方混交林和泥炭地

• 批准号: 412349-2011
• 负责人: Lieffers, Victor
• 金额: $ 4.43万
• 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: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=530662
• 关键词: Well; Site; reclamation; forest; restoring

The boreal forests of Alberta, Saskatchewan and British Columbia have a large number of drilling sites for oil and gas exploration. The reclamation of these well pads and access roads back to forests after drilling is a critical step in reducing the environmental footprint of these activities. In this proposal we examine the types of soil disturbance applied to four different forest ecosystems: foothills lodgepole pine, boreal jack pine, boreal mixedwoods and treed peatlands (black spruce bogs and poor fens). We then test a variety of possible treatments that have high probability of re-positioning these sites on a trajectory back to their original forest type. The novel feature of our work is to provide the required environmental conditions for the re-establishment of key species of each forest type. In the Foothills Lodgepole Pine forests of western Alberta we will examine the use of chipping debris from forestry slash piles as a soil amendment for preparing sites for natural or artificial regeneration of lodgepole pine. Use of serotinous cones (from pine logging slash) to deliver seed to the site will also be tested. In the Boreal Mixedwood sites, we will focus efforts on natural regeneration using existing root systems of aspen as a source of vegetative propagation from sprouts (root suckers) and the bud and seed bank to recruit other species. Our research will examine ways to protect the forest floor and the roots systems of aspen from damage during the drilling processes - most of which occurs on frozen ground. In the Boreal Jack Pine ecosystems on Aeolian sands, we will study several possible issues that might slow the recruitment of trees after disturbance. First, water infiltration may not be uniform on sands. Second, the unstable surface of the sands may damage pine germinants on these sites. Third, the exposed surface may dry out too quickly to allow establishment of seedlings. In the Peatland sites, hummock-hollow microtopography is

阿尔伯塔、萨斯喀彻温和不列颠哥伦比亚省的北方森林有大量石油和天然气勘探的钻井地点。在钻井后对这些井场和通往森林的道路进行复垦是减少这些活动的环境足迹的关键一步。在这个建议中，我们研究了土壤扰动的类型，适用于四种不同的森林生态系统：山麓lodgepole松，北方杰克松，北方mixedwoods和树木泥炭地（黑云杉沼泽和穷人沼泽）。然后，我们测试了各种可能的治疗方法，有很高的概率重新定位这些网站的轨迹回到原来的森林类型。我们工作的新特点是为每种森林类型的关键物种的重建提供所需的环境条件。在山麓小杆松森林西部阿尔伯塔，我们将研究使用的碎片从林业采伐迹地桩作为土壤改良剂，准备网站的自然或人工再生的小杆松。还将测试使用针叶树球果（来自松树采伐迹地）将种子运送到现场。在北方杂木区，我们将集中精力利用现有的白杨根系进行自然再生，作为从萌芽（根吸盘）和萌芽和种子库进行无性繁殖的来源，以招募其他物种。我们的研究将探讨如何保护森林地面和白杨的根系在钻探过程中不受损害-其中大部分发生在冻土上。在风成沙上的北美短叶松生态系统中，我们将研究几个可能的问题，这些问题可能会减缓干扰后树木的恢复。首先，水渗透在砂上可能不均匀。其次，不稳定的沙子表面可能会破坏这些地点的松树发芽。第三，暴露的表面可能会太快干燥，无法生长幼苗。在泥炭地，丘状凹陷微地形是