POTENTIAL LARGE WOODY DEBRIS RECRUITMENT DUE TO LANDSLIDES, BANK EROSION AND FLOODS IN MOUNTAIN BASINS: A QUANTITATIVE ESTIMATION APPROACH
POTENTIAL LARGE WOODY DEBRIS RECRUITMENT DUE TO LANDSLIDES, BANK EROSION AND FLOODS IN MOUNTAIN BASINS: A QUANTITATIVE ESTIMATION APPROACH
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山地盆地山体滑坡、河岸侵蚀和洪水潜在的大量木质碎片补充：定量估算方法
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
J. Bodoque
中科院分区：
文献类型：
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作者：
V. Ruiz‐Villanueva;A. Díez;J. Ballesteros;J. Bodoque
需要深入了解河流走廊及其周围的斜坡和森林植被，以便更好地了解木材的补充或对河流的投入。西班牙中部现有的关于水文地貌过程和森林分布的信息，使人们能够从三个来源评估潜在的木材征用情况：滑坡、河岸侵蚀和区域范围内洪水期间的河流运输。该方法以地理信息系统(GIS)为基础，采用模糊逻辑原理进行多准则多目标评价。首先，划定了可能受到滑坡、岸坡侵蚀和洪水影响的区域，并进行了植被分析，以获得植被阻力和森林密度。根据流程频率和严重性，提出了几种方案。使用这种方法，可以估计每种情况下潜在可用木材的体积。
In‐depth knowledge of the fluvial corridor and surrounding slopes and forest vegetation is needed for a better understanding of wood recruitment or inputs to rivers. The information available in Central Spain on hydrogeomorphic processes and forest distribution enabled the evaluation of potential wood recruitment from three sources: landslides, bank erosion and fluvial transport during floods on a regional scale. The method presented here is based on a geographical information system (GIS) and on multi‐criteria and multi‐objective assessment using fuzzy logic principles. First, the areas potentially affected by landslides, bank erosion and floods were delineated, and a vegetation analysis was carried out to obtain the vegetation resistance and forest density. Several scenarios were proposed based on the process frequency and severity. Using this method, the volume of potentially available wood can be estimated for each scenario.