caa a22 4500 606219692 CHVBK 20210128101119.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s11104-014-2242-2 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2242-2 Effect of repeated burning on plant and soil carbon and nitrogen in cheatgrass ( Bromus tectorum ) dominated ecosystems [Elektronische Daten] [Rachel Jones, Jeanne Chambers, Dale Johnson, Robert Blank, David Board] Background and Aims: Fire has profound effects on ecosystem properties, but few studies have addressed the effect of repeated burns on soil nutrients, and none have been conducted in cold desert ecosystems where invasion by exotic annual grasses is resulting in greater fire frequency. Methods: In a 5year study, we examined effects of repeated burning, litter removal, and post-fire seeding on carbon (C) and nitrogen (N) contents in soils, litter, and vegetation in a cheatgrass-dominated Wyoming big sagebrush ecological type. We developed a multivariate model to identify potential mechanisms influencing treatment effects and examine the influence of environmental factors such as precipitation and temperature. Results: We found that repeated burning had strong negative effects on litter C and N contents, but did not reduce soil nutrients or vegetation C and N contents, likely due to cool fire temperatures. There were few effects of litter removal or post-fire seeding. Instead, precipitation and temperature interacted with burning and had the strongest influences on soil N and vegetation C and N contents over time. Conclusions: Management strategies aimed at decreasing litter and seed banks and increasing competitive interactions may be more effective at reducing cheatgrass success than approaches for reducing soil nutrients. Springer International Publishing Switzerland, 2014 Cold desert nationallicence Invasive annual grasses nationallicence Repeated fire nationallicence Restoration nationallicence Sagebrush nationallicence Shrublands nationallicence TMN : Total mineral nitrogen nationallicence Jones Rachel Ecology, Evolution and Conservation Biology Graduate Group, Department of Natural Resources & Environmental Science, University of Nevada, Reno, 1000 Valley Road, 89512, Reno, NV, USA aut Chambers Jeanne Rocky Mountain Research Station, US Forest Service, 920 Valley Road, 89512, Reno, NV, USA aut Johnson Dale Department of Natural Resources & Environmental Science, University of Nevada, Reno, 1000 Valley Road, 89512, Reno, NV, USA aut Blank Robert USDA, Agricultural Research Service, 920 Valley Road, 89512, Reno, NV, USA aut Board David Rocky Mountain Research Station, US Forest Service, 920 Valley Road, 89512, Reno, NV, USA aut Plant and Soil Springer International Publishing 386/1-2(2015-01-01), 47-64 0032-079X 386:1-2<47 2015 386 11104 https://doi.org/10.1007/s11104-014-2242-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2242-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jones Rachel Ecology, Evolution and Conservation Biology Graduate Group, Department of Natural Resources & Environmental Science, University of Nevada, Reno, 1000 Valley Road, 89512, Reno, NV, USA aut NATIONALLICENCE 700 1- Chambers Jeanne Rocky Mountain Research Station, US Forest Service, 920 Valley Road, 89512, Reno, NV, USA aut NATIONALLICENCE 700 1- Johnson Dale Department of Natural Resources & Environmental Science, University of Nevada, Reno, 1000 Valley Road, 89512, Reno, NV, USA aut NATIONALLICENCE 700 1- Blank Robert USDA, Agricultural Research Service, 920 Valley Road, 89512, Reno, NV, USA aut NATIONALLICENCE 700 1- Board David Rocky Mountain Research Station, US Forest Service, 920 Valley Road, 89512, Reno, NV, USA aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 386/1-2(2015-01-01), 47-64 0032-079X 386:1-2<47 2015 386 11104