Geo-referrenced NRCS Soil Data for Northern California genus Thomomys pocket gophers

This CSV file contains the soil information extracted from the US Department of Agriculture (USDA)'s Natural Resource Conservation Service (NRCS) STATSGO soil database. The soil characteristics of clay, silt, sand, bulk density, linear extensibility are given as a weighted average for both a depth of 20cm and of 1m; the total soil depth for the area is also reported. These characteristics are associated with all unique specimen localities in our study area. Unique ID refers to the specimen's unique ID number in the Arctos collaborative museum database. The CatNum ID is the Museum of Vertebrate Zoology (MVZ) catalog number we use to identify specimens throughout our analyses. For more information about this dataset, please see Marcy et al (2013) PLOS ONE doi: http://dx.doi.org/10.1371/journal.pone.0064935

本CSV文件包含从美国农业部（USDA）自然资源保护局（NRCS）的STATSGO土壤数据库中提取的土壤相关信息。本数据集提供了粘粒、粉粒、砂粒、容重及线性延伸性等土壤特征参数，所有参数均以20cm和1m土层深度的加权平均值形式给出；同时一并报告了研究区域的总土壤厚度。上述土壤特征参数与研究区域内所有唯一的标本采样点位一一对应。唯一标识符（Unique ID）指该标本在Arctos协作博物馆数据库中的专属编号。CatNum ID 为脊椎动物学博物馆（MVZ）的馆藏目录编号，我们在全部分析流程中均以此编号识别标本。如需了解该数据集的更多详细信息，请参阅Marcy等人（2013）发表于《PLOS ONE》的研究论文，DOI链接为：http://dx.doi.org/10.1371/journal.pone.0064935