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首页> 外文期刊>Journal of the American Water Resources Association >Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes
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Identification of Priority Areas for Integrated Management of Semiarid Watersheds in the Ecuadorian Andes

机译：确定厄瓜多尔安第斯山脉半干旱流域综合管理的优先领域

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摘要

Integrated watershed management (IWM) is a priority, especially in semiarid regions that are concurrently affected by population growth, land use change, soil erosion, and poor governance. In developing countries, IWM is often done without any support tool, scientific data, or deep knowledge of territory characteristics. The aim of this study was to present a case study to apply a decision support tool to prioritize areas for territory management. A simple, quantitative multi-criteria analysis was applied in a semiarid basin of the Ecuadorian Andes to identify the zones of greatest concern for implementation of resource conservation and management practices at a local and regional scale. In addition to describing the current state of the conditions of this basin, our results suggest scenarios of change in relation to official population projections based on spatial analysis of land use change. Analysis resulted in a scattered distribution of priority values within the watershed, so a hierarchical rule was incorporated to define priorities at the subwatershed (SW) scale. Our analysis identified four SW of very high priority and urgent need to implement management practices. Based on projections of future change due to population growth and land cover change, the number of subbasins that require more attention was doubled. Finally, this study includes zones for management or conservation of the land, according to the Sustainable Development Goals.
机译：综合流域管理（IWM）是当务之急，尤其是在同时受到人口增长，土地利用变化，土壤侵蚀和治理不善影响的半干旱地区。在发展中国家，IWM往往没有任何支持工具，科学数据或对领域特征的深入了解。这项研究的目的是提出一个案例研究，以应用决策支持工具对区域管理进行优先排序。在厄瓜多尔安第斯山脉的半干旱盆地中进行了简单，定量的多标准分析，以找出在地方和区域范围内实施资源节约和管理实践最需要关注的区域。除了描述流域状况的当前状态外，我们的结果还提出了基于土地利用变化的空间分析得出的与官方人口预测有关的变化情景。分析导致流域内优先级值的分散分布，因此采用了分层规则来定义子流域（SW）规模的优先级。我们的分析确定了四个非常重要的软件仓库，它们迫切需要实施管理实践。根据人口增长和土地覆被变化对未来变化的预测，需要更多关注的子盆地数量增加了一倍。最后，根据可持续发展目标，该研究包括土地管理或保护区。

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