Title | Soil carbon dynamics and potential carbon sequestration by rangelands |
Publication Type | Journal Article |
Year of Publication | 2002 |
Authors | Schuman G.E., Janzen H.H., Herrick JE |
Journal | Environmental Pollution |
Volume | 116 |
Pagination | 391-396 |
Date Published | March 1, 2002 |
Accession Number | JRN00367 |
ARIS Log Number | 120375 |
Keywords | carbon,soil, journal, journals, sequestration, carbon, soil |
Abstract | The U.S. has about 336 Mha of grazing lands of which rangelands account for 48%. Changes in rangeland soil C can occur in response to a wide range of management and environmental factors. Grazing, fire, and fertilization have shown to affect soil C storage in rangelands, as has converting marginal cropslands into grasslands. While losses due to soil erosion can influence soil C storage on rangelands, most important is the effect of erosion on soil C redistribution on the landscape through detachment and subsequent deposition. Proper grazing management has been estimated to increase soil C storage on rangelands from 0.1 to 0.3 Mg C ha- yr-1 and new grasslands have been shown to store as much as 0.6 Mg C ha-1 yr-1. Grazing lands are estimated to contain 10-30% of the world's soil organic carbon. Given the size of the C pool in grazing lands we need to better understand the current and potential effects of management on soil C storage. |
URL | /files/bibliography/02-088.pdf |
DOI | 10.1016/S0269-7491(01)00215-9 |