Shrubland vegetation topographic facets of Southern California

To approximate the distribution of shrubland species based on their postfire reproductive strategy (resprouter, seeder, and facultative seeder) across Southern California, we created a raster layer subdividing the landscape into a number of different facet classes.  This raster dataset is at 30 meters pixel resolution and contains 12 different landscape facet classes based on vegetation and physiography. Specifically, the facets included several different vegetation types based on the California Wildlife Habitat Relations (WHR) classification (three shrubland categories, annual grasslands, valley-foothill riparian woodland, and ‘other’ vegetation types) which were intersected with aspect (two classes: north or south facing) and topography (summit, ridges, slopes, valleys, flats, and depressions).  The combination of factors is intended to capture warmer, more exposed vegetation types dominated by seeder species (occurring on south-facing slopes, summits and ridges) versus cooler, less e...

为了近似模拟南加州地区灌丛物种基于火后繁殖策略（萌芽株（resprouter）、实生苗（seeder）与兼性实生苗（facultative seeder））的分布格局，我们构建了一个将景观划分为多个不同面类别的栅格图层。本栅格数据集像素分辨率为30米，包含12种基于植被与地貌的景观面类别。具体而言，这些面类依托加州野生动物栖息地关系（California Wildlife Habitat Relations, WHR）分类系统划分出多种植被类型（3类灌丛、一年生草原、河谷山麓河岸林地以及“其他”植被类型），并与坡向（分为北坡、南坡两类）和地形（山顶、山脊、斜坡、山谷、平地与洼地）进行叠加。该多因子组合旨在区分以实生苗物种为主的温暖、高暴露度植被类型（分布于南坡、山顶与山脊），与更凉爽、暴露度更低的……