Supporting proactive planning for climate change adaptation and conservation using an attributed road-river structure dataset.

Supporting proactive planning for climate change adaptation and conservation using an attributed road-river structure dataset.
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使用归因的道路河流结构数据集支持气候变化适应和保护的主动规划。

DOI:
10.1016/j.jenvman.2022.115959
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发表时间:
2022
影响因子:
8.7
通讯作者:
Januchowski-Hartley SR
Januchowski-Hartley SR
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Januchowski-Hartley SR

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淡水物种及其栖息地和交通网络面临气候变化的更大风险,是适应的优先事项,道路-河流结构的丰富性和独特性使减缓工作复杂化。我们提出了一个新的空间数据集的道路河流结构归因于涵洞,桥梁,或浅滩,并使用此沿着与梯度和流的数据,以估计结构的敏感性和曝光度和特殊保护区(SAC)和建成区,以确定脆弱性破坏跨河流流域在威尔士,英国。然后,我们评估最脆弱的结构,以确定那些构成高风险的道路和河流专性物种(鱼类和贻贝),其持久性取决于水生栖息地的连通性的影响洪水的可能性的危害。超过5%(624/11,680)的建筑物高度脆弱,位于洪水危害最高的地方,对道路和河流物种造成影响的风险很高。我们评估我们的方法的可靠性,通过在一个河流流域的地面调查支持SAC和超过40%(n = 255)的高风险结构,并显示,调查的子集>50%有明显的物理退化,河岸侵蚀和冲刷。我们的研究结果有助于我们更好地了解哪些结构对河流专用物种和人类造成高风险的影响,从而增加洪水的可能性。
Freshwater species and their habitats, and transportation networks are at heightened risk from changing climate and are priorities for adaptation, with the sheer abundance and individuality of road-river structures complicating mitigation efforts. We present a new spatial dataset of road-river structures attributed as culverts, bridges, or fords, and use this along with data on gradient and stream order to estimate structure sensitivity and exposure in and out of special areas of conservation (SAC) and built-up areas to determine vulnerability to damage across river catchments in Wales, UK. We then assess hazard of flooding likelihood at the most vulnerable structures to determine those posing high risk of impact on roads and river-obligate species (fishes and mussels) whose persistence depends on aquatic habitat connectivity. Over 5% (624/11,680) of structures are high vulnerability and located where flooding hazard is highest, posing high risk of impact to roads and river-obligate species. We assess reliability of our approach through an on-ground survey in a river catchment supporting an SAC and more than 40% (n = 255) of high-risk structures, and show that of the subset surveyed >50% had obvious physical degradation, streambank erosion, and scouring. Our findings help us to better understand which structures pose high-risk of impact to river-obligate species and humans with increased flooding likelihood.
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