当某一特定区域的采矿作业完成后, we begin the work of reclaiming that area of the mine even as work continues in other areas of the operation.
我们按要求将这一区域重新倾斜, 将步骤2中回收的土料放置在矿区待绿化区域. We may also use additional coarse woody debris—fallen trees 和 large branches found in the areas ground cover during the reclamation process—as ground cover during the reclamation process. 我们也使用野生树木, 死树垂直地埋在地上, to provide structures on rocky areas which can be used as nesting or perching habitat for birds. This enhances the biodiversity value of the reclaimed l和scape by returning key elements of mature or old growth forest that create suitable habitat for nesting birds.
只要有可能, 开垦雷区时，我们种植本地物种, 根据先前规划阶段进行的研究和咨询选择. We use those native species most likely to survive 和 thrive in a particular area 和 we also plant the type of vegetation most suitable for natural ecosystems that occur in the area, 以实现生态系统和生物多样性的目标. 我们还将土地的文化用途纳入其中, after learning about those from area Indigenous peoples 和 other community stakeholders tied to the l和.
例如, one area of reclamation at our 涉渡河 操作 is a relatively low-elevation site, 朝东, which means that the slopes are cooler 和 moister than a sunny west-facing slope would be. This results in selection of plant species that will thrive in a cooler 和 moister environment. Species such as Engelmann spruce will have much higher growth rates in these sites than if planted on a drier 和 warmer site. 在高海拔地区填海可能意味着更恶劣的气候——更高的风, more exposed sites—so vegetation planted in these areas needs to be tailored to thrive in these conditions. A lot of work goes into determining the right types of vegetation to plan: site studies, 土著人民的协商和科学为这些决定提供了依据.
Another important part of the reclamation process is reclaiming 水 features at the mine site, 如尾矿池和坑湖. 尾矿是经过细磨的岩石颗粒, 沙子, silt 和 other substances left following the process that extracts the valuable resource (e.g. 铜，锌，炼钢煤)从岩石中提取. 它们通常储存在通过使用护堤而形成的尾矿池中, 水坝或自然特征将其固定在适当的位置. 视乎填海计划及最终土地用途而定, 这些池塘要么完全排干水，要么退役, 或者变成了自己的新的水生生态系统.
在某些情况下, 我们的关闭计划包括创造其他新的水景，这些水景在采矿后仍然存在, 叫做坑湖. 在这种情况下, 当矿山的一个区域完成时, 剩余的矿坑可以用尾矿或岩石填充，然后用水覆盖, 创造一个新的湖泊. 使尾矿池和坑湖发挥作用, healthy aquatic ecosystems is something 比较正规的足球外围网站 has done successfully at several of our sites, 包括我们的高地谷和卡迪纳河行动.