Cumulative impact mapping: Advances, relevance and limitations to marine management and conservation, using Canada's Pacific waters as a case study
Cumulative impact mapping: Advances, relevance and limitations to marine management and conservation, using Canada's Pacific waters as a case study
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DOI：
10.1016/j.marpol.2010.01.010
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发表时间：
2010-09-01
期刊：
影响因子：
3.8
通讯作者：
Ardron, Jeff A.
中科院分区：
文献类型：
--
作者：
Ban, Natalie C.;Alidina, Hussein M.;Ardron, Jeff A.
对人类对海洋环境的累积影响的分析仍处于初级阶段，但发展迅速。在这项研究中，现有的方法进行了扩展，旨在现实的考虑在区域范围内的累积影响。38个人类活动被认为是，每一个细分的压力类型和一系列的空间影响。为了增加政策的相关性，保护区内外现有的压力进行了比较。结果表明，加拿大太平洋沃茨的整个大陆架在一定程度上受到多种人类活动的影响。商业捕鱼、陆上活动和海上运输分别占总累积影响的57.0%、19.1%和17.7%。令人惊讶的是，大多数地区的保护指定包含更高的影响分数比平均值相应的生态区。尽管最近在绘制累积影响方面取得了进展，但仍存在许多局限性。尽管如此，诸如此类的初步分析可以提供与预防性管理和养护工作有关的信息。(C)2010爱思唯尔有限公司保留所有权利。
Analysis of cumulative human impacts in the marine environment is still in its infancy but developing rapidly. In this study, existing approaches were expanded upon, aiming for a realistic consideration of cumulative impacts at a regional scale. Thirty-eight human activities were considered, with each broken down according to stressor types and a range of spatial influences. To add to the policy relevance, existing stressors within and outside of conservation areas were compared. Results indicate the entire continental shelf of Canada's Pacific marine waters is affected by multiple human activities at some level. Commercial fishing, land-based activities and marine transportation accounted for 57.0%, 19.1%, and 17.7% of total cumulative impacts, respectively. Surprisingly, most areas with conservation designations contained higher impact scores than the mean values of their corresponding ecoregions. Despite recent advances in mapping cumulative impacts, many limitations remain. Nonetheless, preliminary analyses such as these can provide information relevant to precautionary management and conservation efforts. (C) 2010 Elsevier Ltd. All rights reserved.