Cryosolic pedons from Russia and Alaska, Version 1

U.S. pedon data on the CAPS Version 1.0 CD-ROM, June 1998, are a sample of the pedon data contained on a CD-ROM produced by the National Soil Survey Center - Soil Survey Laboratory(NSSC-SSL). The data include recent pedons from analyses for soil characterization and research within the National Cooperative Soil Survey. Less-than-complete characterization data are available for many pedons because only selected measurements were planned or because the planned measurements are not yet complete. This database is dynamic-- data for additional pedons are added as they are sampled and analyzed, other information is updated as pedons are classified, suspect measurements are rerun and replaced, and errors are found and corrected. The data on the NSSC-SSL CD-ROM represent a 'snapshot' of the database. The database includes pedons that represent the central concept of a soil series, pedons that represent the central concept of a map unit but not of a series, and pedons sampled to bracket a range of properties within a series or landscape. Thus, attribute data for some data elements may be incomplete or missing for certain portions of the United States. In instances where data are unavailable, a mask should be used to exclude the area from the analysis. For research purposes, all data are retained in the database. Users unfamiliar with a given soil or set of data may want to consult with a research soil scientist at the National Soil Survey Center. A research soil scientist can be reached by telephone at [phone], or by writing the Soil Survey Laboratory Head, National Soil Survey Center, Natural Resources Conservation Service, Federal Building, Room 152, 100 Centennial Mall North, Lincoln, NE 68508-3866 USA. Pedons on the CAPS Version 1.0 CD-ROM cover areas in Russia (60 deg 37 min N to 69 deg 27 min N; 159 deg 07 min E to 161 deg 33 min E) and in Alaska (62 deg to 68 deg N; 135 deg to 149 deg W).1998年6月发布的CAPS 1.0版光盘所载美国土壤剖面（pedon）数据，是美国国家土壤调查中心-土壤调查实验室（National Soil Survey Center - Soil Survey Laboratory，简称NSSC-SSL）出品光盘所包含的剖面数据样本。该数据涵盖全国合作土壤调查（National Cooperative Soil Survey）中用于土壤表征与研究的最新剖面样本。由于仅规划了部分测量项目，或规划测量尚未完成，多数剖面存在表征数据不完整的情况。 本数据库为动态更新库：随额外剖面的采样与分析工作推进，会不断增补新的剖面数据；随剖面分类完成、可疑测量值复测替换以及错误修正，相关信息也会同步更新。NSSC-SSL光盘所载数据仅为该数据库的一个“快照”版本。 数据库收录的剖面包括三类：代表土壤系列核心概念的剖面、代表制图单元（map unit）核心概念但不对应特定土壤系列的剖面，以及为覆盖某土壤系列或景观范围内的属性梯度而采集的剖面。因此，美国部分区域的部分数据元素可能存在属性数据缺失或不完整的情况。当存在数据缺失时，应使用数据掩码（mask）将对应区域从分析范围中排除。 出于研究目的，所有数据均保留在数据库中。若用户对某类土壤或数据集不熟悉，可联系国家土壤调查中心的研究土壤科学家进行咨询。该类专家的联系电话为(402) 437-5006，或致信美国农业部自然资源保护服务局国家土壤调查中心土壤调查实验室负责人，地址为：美国内布拉斯加州林肯市百年购物中心北100号联邦大楼152室，邮编68508-3866。 CAPS 1.0版光盘所载剖面覆盖俄罗斯（北纬60°37′至69°27′，东经159°07′至161°33′）与美国阿拉斯加州（北纬62°至68°，西经135°至149°）区域。