SGS-LTER Earthwatch Project - Nitrogen and Carbon in Native, Abandoned and Cultivated Fields in eastern Colorado, USA 1991

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.
Our objective in this study was to evaluate effects of land use on in situ net N mineralization in shortgrass steppe by comparing native and abandoned fields and cultivated fields, and by comparing soil under and between plants within native and abandoned fields. We also compared mineralization patterns between in situ and laboratory incubations to evaluate the role of environmental restrictions in determining N supply across management treatments and microsites. Additional information and referenced materials can be found: http://hdl.handle.net/10217/82140 Resources in this dataset:Resource Title: Website Pointer to html file. File Name: Web Page, url: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=101 Webpage with information and links to data files for download

本数据包由致力于短草草原长期生态研究项目（SGS-LTER）的研究者所制作，该项目由科罗拉多州立大学管理。SGS-LTER项目长期数据集及其背景信息（提案、报告、照片等）均收录于科罗拉多州数字收藏馆的综合项目中（http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429）。该数据表及其关联元数据文档，采用生态元数据语言生成，可能可通过服务于生态研究社区的其它数据存储库获取，并代表SGS-LTER项目收藏库的组成部分。本研究旨在评估土地利用对短草草原原位净氮矿化的影响，通过对比原生和废弃地块以及耕作地块，以及原生和废弃地块中植物下及植物间的土壤，来进行比较。此外，我们还对比了原位与实验室培养下的矿化模式，以评估环境限制在确定管理措施和微地点氮供应中的作用。更多信息和参考材料可查阅：http://hdl.handle.net/10217/82140。本数据集包含的资源：资源标题：指向html文件的网站指针。文件名：网页，url：https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=101，包含信息和数据文件下载链接的网页。