Community perception, adaptation and resilience to extreme weather in the Yucatan Peninsula, Mexico

Community perception, adaptation and resilience to extreme weather in the Yucatan Peninsula, Mexico
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墨西哥尤卡坦半岛的社区对极端天气的感知、适应和恢复力

DOI:
10.1007/s10113-020-01586-w
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发表时间:
2020
影响因子:
4.2
通讯作者:
Metcalfe S
Metcalfe S
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Metcalfe S

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在墨西哥尤卡坦半岛的三个社区探讨了与生计复原力有关的对气候变化的看法、气候多变性和极端天气的影响和应对措施。这些社区提供了整个区域最常见的生计战略的例子:小规模渔业(San Felipe)和半自给自足的小农农业(Tzucacab和Calakmul)。尽管年降雨量正在减少的看法没有得到仪器记录的支持,但关键夏季降雨的时间变化和仲夏干旱(小管)的加剧得到了证实。所有社区都报告了干旱和飓风对生计和作物产量的影响,尽管严重程度各不相同。传统军事栽培的变化被认为是由不太可靠的降雨推动的,但也受到墨西哥农业和更广泛经济政策变化的推动。多样化是所有社区和答复者的共同适应对策,导致生计战略发生深刻变化。政府降低脆弱性的努力被发现缺乏连续性,很难获得,而且过于偏向商业规模的生产商。人口增长、气温升高和夏季降雨量减少将增加依赖小规模农业和渔业的社区的压力,需要对影响和适应有更细微的了解,以提高生计的复原力。随着适应成为应对气候变化全球战略日益重要的一部分,对这种地方规模适应战略的进一步认识应成为制定墨西哥国家适应政策的基础,并为国际上采取的办法提供一个模板。
Perceptions of climate change, the impacts of and responses to climatic variability and extreme weather are explored in three communities in the Yucatan Peninsula, Mexico, in relation to livelihood resilience. These communities provide examples of the most common livelihood strategies across the region: small-scale fisheries (San Felipe) and semi-subsistence small-holder farming (Tzucacab and Calakmul). Although the perception that annual rainfall is reducing is not supported by instrumental records, changes in the timing of vital summer rainfall and an intensification of the mid-summer drought (canicula) are confirmed. The impact of both droughts and hurricanes on livelihoods and crop yields was reported across all communities, although the severity varied. Changes in traditionalmilpacultivation were seen to be driven by less reliable rainfall but also by changes in Mexico’s agricultural and wider economic policies. Diversification was a common adaptation response across all communities and respondents, resulting in profound changes in livelihood strategies. Government attempts to reduce vulnerability were found to lack continuity, be hard to access and too orientated toward commercial scale producers. Population growth, higher temperatures and reduced summer rainfall will increase the pressures on communities reliant on small-scale farming and fishing, and a more nuanced understanding of both impacts and adaptations is required for improved livelihood resilience. Greater recognition of such local-scale adaptation strategies should underpin the developing Mexican National Adaptation Policy and provide a template for approaches internationally as adaptation becomes an increasingly important part of the global strategy to cope with climate change.
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发表时间: 2018
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