Environmental Data Initiative logo
EDI Data Portal

Data Package Summary    View Full Metadata

  • Soil Calcium: Long-Term Nitrogen Deposition: Population, Community, and Ecosystem Consequences
  • Tilman, David
  • 2018-01-22
  • Tilman, D. 2018. Soil Calcium: Long-Term Nitrogen Deposition: Population, Community, and Ecosystem Consequences ver 8. Environmental Data Initiative. https://doi.org/10.6073/pasta/34302124ab9cc53fb476a7991830ab7e (Accessed 2024-04-24).

  • The purpose of this experiment is to measure how adding nitrogen over a long time will affect the number of species, the type of species present, the amount of annual growth, and the change from year to year in the growth of each species in a plant community which is also relieved of grazing by large and small mammals. The experiment is being conducted within fields (A, B, C, and D) which were initially low in soil nutrients. There are 8 different levels of nitrogen addition with other nutrients added to ensure that nitrogen remains the limiting nutrient, and a control which receives no nutrients. There are 6 replicates of the 9 treatments in fields A, B, and C and 5 replicates in field D. The treatments were randomly assigned to the plots. In fields A, B, and C the plots are in 6 by 9 grids and are 4 by 4 meters in size with 1 meter aisles between plots. In field D the plots are 1.5 by 4 meters and are placed in a 3 by 17 grid. The plots are enclosed by a fence to keep out mammalian herbivores. Gophers are trapped and removed as they appear. Nitrogenfertilizer (NH4NO3) is applied twice per year, once in early May and once in late June. This experiment was begun in 1982 by David Tilman.

  • N: 45.44138      S: 45.384865      E: -93.16289      W: -93.22445
  • Intellectual Rights for Cedar Creek LTER data This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA. This is a human-readable summary of (and not a substitute for) the license. You are free to copy and redistribute the material in any medium or format You are free to remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits. Notice - You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation. Notice - No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
  • https://doi.org/10.6073/pasta/34302124ab9cc53fb476a7991830ab7e
  • Analyze this data package using:           

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is proud to be affiliated with the following organizations: DataCite logo DataONE logo ESIP logo re3data logo