Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Crop Land Data Layer 2011

This tabular data set represents the percent of land cover classes from the 2011 Crop land Data Layer compiled for two spatial components of the NHDPlus version 2...本表格数据集呈现了为NHDPlus第二版的两个空间分量所编制的2011年耕地数据图层（Crop land Data Layer）中各类土地覆盖类别的占比情况。