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首页> 外文期刊>The Science of the Total Environment >Extravagance in the commons: Resource exploitation and the frontiers of ecosystem service depletion in the Amazon estuary
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Extravagance in the commons: Resource exploitation and the frontiers of ecosystem service depletion in the Amazon estuary

机译：公地的奢侈：亚马逊河口的资源开发和生态系统服务枯竭的前沿

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摘要

Estuaries hold major economic potential due their strategic location, close to seas and inland waterways, thereby supporting intense economic activity. The increasing pace of human development in coastal deltas over the past five decades has also strained local resources and produced extensive changes across both social and ecological systems. The Amazon estuary is located in the Amazon Basin, North Brazil, the largest river basin on Earth and also one of the least understood. A considerable segment of the population living in the estuary is directly dependent on the local extraction of natural resources for their livelihood. Areas sparsely inhabited may be exploited with few negative consequences for the environment. However, recent and increasing pressure on ecosystem services is maximised by a combination of factors such as governance, currency exchange rates, exports of beef and forest products. Here we present a cross methodological approach in identifying the political frontiers of forest cover change in the estuary with consequences for ecosystem services loss. We used a combination of data from earth observation satellites, ecosystem service literature, and official government statistics to produce spatially-explicit relationships linking the Green Vegetation Cover to the availability of ecosystems provided by forests in the estuary. Our results show that the continuous changes in land use/cover and in the economic state have contributed significantly to changes in key ecosystem services, such as carbon sequestration, climate regulation, and the availability of timber over the last thirty years.
机译：河口地理位置优越，靠近海洋和内陆水道，因此具有巨大的经济潜力，因此可以支持激烈的经济活动。在过去的五十年中，沿海三角洲人类发展的步伐不断加快，这也使当地资源紧张，并在社会和生态系统中造成了巨大变化。亚马逊河口位于巴西北部的亚马逊盆地，是地球上最大的河流盆地，也是鲜为人知的河流之一。生活在河口的很大一部分人口直接依赖当地自然资源的谋生。可以开发人稀少的地区，而对环境几乎没有负面影响。但是，由于治理，货币汇率，牛肉和林产品的出口等多种因素的组合，最近对生态系统服务的压力越来越大。在这里，我们提出了一种跨方法的方法，用于确定河口森林覆盖率变化的政治边界，从而影响生态系统服务的丧失。我们使用了来自地球观测卫星，生态系统服务文献和官方政府统计数据的组合，以建立将绿色植被覆盖与河口森林所提供生态系统的可用性联系起来的空间明晰关系。我们的结果表明，过去三十年来，土地使用/覆盖面积以及经济状况的持续变化为关键的生态系统服务（例如碳固存，气候调节和木材供应）的变化做出了重大贡献。

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  • 来源
    《The Science of the Total Environment》 |2016年第15期|6-16|共11页
  • 作者

    Caio C. de Araujo Barbosa; Peter M. Atkinson; John A. Dearing;

  • 作者单位

    Global Environmental Change and Earth Observation Research Group, Geography and Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom;

    Global Environmental Change and Earth Observation Research Group, Geography and Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom,Faculty of Science and Technology, Lancaster University, Lancaster LA1 4YR, United Kingdom;

    Palaeoecologieal Laboratory, Geography and Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Amazon estuary; Ecosystem services; Natural resource exploitation; Granger causality;

    机译：亚马逊河口;生态系统服务;自然资源开发;格兰杰因果关系;

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