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首页> 外文会议>Cold regions engineering 2009 : Cold regions impact on research, design, and construction >AHP for the Assessment of Permafrost Environment in Muli Mining Area of Qinghai Province, China
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AHP for the Assessment of Permafrost Environment in Muli Mining Area of Qinghai Province, China

机译：层次分析法在青海省木里矿区多年冻土环境评价中的应用

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摘要

Based on analyzing the interaction between coal mining and permafrost environment, an integrated indicator system for evaluating the permafrost environment of Muli mining area, a opencast coal mine located in Qinghai province, China, is proposed in this study. This system consists of three subsystems: permafrost freezing-thawing erosion sensibility, permafrost thermal stability and permafrost ecological fragility. The grade standard of environment assessment in this area, including five situations: ideal- (0.69～1.00), good- (0.52～0.69), general- (0.36～0.52), bad- (0.23～0.36) and worse-situation (0.00～0.23), was established by loading indicators' weights, which were calculated using the Analytic Hierarchy Process (AHP). Based on this method, the permafrost environment in Muli mining area was evaluated according to documented literature and fieldwork data. The index of permafrost environment, by normalizing, is 0.46. The result indicates that although coal mining only experiences a short period until now, the permafrost environment in Muli mining area is in a general situation. It means that the permafrost environment has been destroyed to a certain degree by anthropologic activities and might be further degenerated. However, at this degree, a new equilibrium could be achieved if the current environmental system is maintained and treatments are constructed against further damages.
机译：在分析煤矿开采与多年冻土环境相互作用的基础上，提出了一种评价指标体系，用于评价位于中国青海省的露天煤矿木里矿区的多年冻土环境。该系统包括三个子系统：多年冻土冻融侵蚀敏感性，多年冻土热稳定性和多年冻土生态脆弱性。该区域环境评价的等级标准包括五种情况：理想（0.69〜1.00），好（0.52〜0.69），一般（0.36〜0.52），差（0.23〜0.36）和情况较差（ 0.00〜0.23）是通过加载指标权重建立的，该权重是使用层次分析法（AHP）计算的。基于该方法，根据文献资料和现场调查数据对木里矿区的多年冻土环境进行了评估。通过归一化，多年冻土环境指数为0.46。结果表明，虽然到目前为止煤炭开采仅经历了很短的一段时期，但木里矿区的多年冻土环境处于普遍状态。这意味着多年冻土环境已被人类活动破坏到一定程度，并可能进一步退化。但是，在这种程度上，如果维持当前的环境系统并针对进一步的损害进行治疗，则可以实现新的平衡。

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