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Watershed Planning within a Quantitative Scenario Analysis Framework
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绘制全球非洪水平原湿地地图.

Charles R Lane1, Ellen D'Amico2, Jay R Christensen3

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一个新的全球数据集的非洪平湿地 (NFWs) 显示,它们对于流域弹性至关重要. 这些NFW通常很小,位于河流泛滥平原之外,占全球大部分湿地,对保护和管理至关重要.

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科学领域:

  • 水文和湿地科学 水文和湿地科学
  • 地理空间分析的研究.
  • 环境管理环境管理

背景情况:

  • 非洪水平原湿地 (NFWs) 对于流域弹性至关重要,提供必要的水文和生态化学功能.
  • 全球NFW数据集的缺乏阻碍了有效的水资源管理和野生动物息地保护.
  • 了解NFW分布对于应对流域规模的洪水,干旱和水质至关重要.

研究的目的:

  • 开发和发布一个公开可用的全球非洪平原湿地数据集 (全球NFW数据集).
  • 为将NFW纳入水资源管理和保护战略提供必要的空间数据.
  • 为未来关于NFW功能和生态作用的研究奠定基础.

主要方法:

  • 全球河流泛滥平原地图 (90米分辨率) 与全球整体湿地地图的整合.
  • 开发洪水平原,湿地和非洪水平原湿地的空间数据层.
  • 使用21个不同的盆地在美国境内的数据集的验证.

主要成果:

  • 确定了近3300万个潜在的NFW,估计全球范围超过1600万平方公里.
  • 全球已识别的湿地像素中,NFW占53%,表明它们是世界上大多数的湿地.
  • 确定的NFW的中位数大小小小,从0.0180.138平方公里不等.

结论:

  • 全球NFW数据集是推动湿地保护和管理的新型资源.
  • 这一数据集有助于将NFW纳入水文,生物地球化学和生物模型.
  • 这些发现凸显了NFW对全球湿地生态系统的重大,但经常被忽视的贡献.