SGS-LTER Paleopedology Study - pedon descriptions on the Central Plains Experimental Range, Nunn, Colorado, USA 1992-1993

This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection. CPER Paleopedology Study – Pedons - Forty-one pedons representing sites of contrasting geomorphic position (upland plain, upland ridge, dissected upland, terrace, dune) were chosen for pedologic and geomorphic analyses. These pedons are located on the major physiographic units at the CPER, and contain deposits of suspected fluvial and eolian origin. To examine spatial variability, the pedons were typically sampled along transects spaced at 30m intervals. Samples were taken with a hydraulic soil probe to the depth of probe refusal and from suitable stream and road cuts. All soils were described and sampled by genetic horizon (Soil Survey Staff, 1992), and analyzed at Colorado State University. Analyses included particle size and organic C. Nineteen of the 41 pedons were subjected to stable isotopic analysis of organic C and carbonate. Additional information and referenced materials can be found: http://hdl.handle.net/10217/85625.本数据包由短草草原长期生态研究（Shortgrass Steppe Long Term Ecological Research, SGS-LTER）项目的研究人员编制，该项目由科罗拉多州立大学负责管理。SGS-LTER项目的长期数据集及背景资料（包括项目提案、研究报告、影像资料等）均收录于科罗拉多州数字馆藏（Digital Collections of Colorado）的综合项目馆藏中，访问链接为http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429。本数据集的数据表格与配套元数据文档采用生态元数据语言（Ecological Metadata Language）编写，可通过其他服务于生态研究共同体的仓储获取，且属于SGS-LTER综合项目馆藏的组成部分。 CPER古土壤学研究——土壤剖面（Pedons）：研究选取41个土壤剖面，对应地貌位置存在差异的样点（涵盖高地平原、高地脊、切割高地、阶地、沙丘），用于开展土壤学与地貌学分析。这些剖面分布于CPER的主要地貌单元内，其沉积物疑似为河流沉积与风成沉积成因。为探究空间变异性，研究人员通常以30米为间隔设置样带，沿样带采集剖面样本。样本采用液压土壤采样器采集至探针无法深入的深度，同时也从合适的溪流与路堑中获取样本。所有土壤均按照发生层进行描述与采样（美国土壤调查局，1992），并在科罗拉多州立大学完成分析，检测项目包括粒径与有机碳含量。41个剖面中的19个还额外开展了有机碳与碳酸盐的稳定同位素分析。 更多相关信息与参考资料可通过以下链接获取：http://hdl.handle.net/10217/85625。