Spatial variability of soil organic carbon in grasslands: implications for detecting change at different scales

Conant, RT & Paustian, K (2002) Spatial variability of soil organic carbon in grasslands: implications for detecting change at different scales. Environmental Pollution, 116(Suppl.), S127-S135.

[img] Published Version (PDF 305kB)
Administrators only | Request a copy from author

View at publisher


Extensive data used to quantify broad soil C changes (without information about causation), coupled with intensive data used for attribution of changes to specific management practices, could form the basis of an efficient national grassland soil C monitoring network. Based on variability of extensive (USDA/NRCS pedon database) and intensive field-level soil C data, we evaluated the efficacy of future sample collection to detect changes in soil C in grasslands. Potential soil C changes at a range of spatial scales related to changes in grassland management can be verified (alpha=0.1) after 5 years with collection of 34, 224, 501 samples at the county, state, or national scales, respectively. Farm-level analysis indicates that equivalent numbers of cores and distinct groups of cores (microplots) results in lowest soil C coefficients of variation for a variety of ecosystems. Our results suggest that grassland soil C changes can be precisely quantified using current technology at scales ranging from farms to the entire nation. (C) 2001 Elsevier Science Ltd. All rights reserved.

Impact and interest:

81 citations in Scopus
Search Google Scholar™
53 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 37787
Item Type: Journal Article
Refereed: Yes
Additional Information: Advances in Terrestrial Ecosystem: Carbon Inventory, Measurements, and Monitoring Conference, RALEIGH, NC, OCT 03-05, 2000
Keywords: Soil carbon; Grasslands; USDA/NRCS pedon database; Soil sampling; Spatial variability
DOI: 10.1016/S0269-7491(01)00265-2
Subjects: Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > ECOLOGY (060200)
Divisions: Past > Institutes > Institute for Sustainable Resources
Deposited On: 07 Oct 2010 06:35
Last Modified: 07 Oct 2010 14:51

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page