@article {50943,
	title = {Soil carbon dynamics and potential carbon sequestration by rangelands},
	journal = {Environmental Pollution},
	volume = {116},
	number = {3},
	year = {2002},
	note = {ARIS entry by High Plains Grasslands Research Station July 24, 2001},
	month = {March 1, 2002},
	pages = {391-396},
	abstract = {<p>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{\textquoteright}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.</p>
},
	keywords = {carbon,soil, journal, journals, sequestration, carbon, soil},
	doi = {10.1016/S0269-7491(01)00215-9},
	url = {/files/bibliography/02-088.pdf},
	author = {G.E. Schuman and Janzen, H.H. and Jeffrey E. Herrick}
}
@inbook {51045,
	title = {The Dynamics of Soil Carbon in Rangelands},
	booktitle = {Carbon Sequestration Potential of U.S. Grazing Lands},
	year = {2001},
	note = {ARIS entry by Rangeland Resources Research, Cheyenne, WY},
	month = {2001},
	pages = {267-290},
	publisher = {Ann Arbor Press},
	organization = {Ann Arbor Press},
	chapter = {11},
	address = {Chelsea, MI},
	abstract = {Carbon dynamics of rangeland soils are very complex and only limited detailed research has been conducted to assess the role of management and grazing strategies on soil C changes and the potential for enhanced C sequestration. Soil erosion also can impact the soil C pools in rangeland ecosystems, but much of the erosion does not result in loss of C from the  landscape but rather a repositioning on the landscape. In an attempt to estimate the effects of management on the C storage potential of the rangeland ecosystems, we have reviewed the literature on the subject and made some assumptions in order to make some qualitative estimates of C sequestration potential and potential avoided losses of C through management. We believe about 19 Tg C yr-1 can be sequestered through management on lands that are in need of improved management and through soil C regeneration in CRP lands. However, we estimate that 44 Tg C yr-1  can be maintained through ensured good management and by preventing CRP lands from being brought back into crop production. The estimated 63 Tg C yr-1 that can be sequestered and/or prevented from being lost from well- managed rangelands and through maintenance of CRP lands may be small in comparison to the estimates of C sequestration by improved production prac- tices on croplands in the U.S.; however, this level of C storage in a natural ecosystem tends to be more stable and less prone to major C losses through erosional losses and shifts in management.},
	keywords = {C storage, grazing strategies, management, rangeland, sequestration, soil carbon},
	url = {/files/bibliography/01-073.pdf},
	author = {G.E. Schuman and Jeffrey E. Herrick and Janzen, H.H.}
}
