Biogeochemical and Ecological Impacts of Livestock Grazing in Semi-Arid Southeastern Utah, USA
作者： D.P. Fernandez , J.C. Neff , R.L. Reynolds
DOI: 10.1016/J.JARIDENV.2007.10.009
关键词:
摘要: Abstract Relatively few studies have examined the ecological and biogeochemical effects of livestock grazing in southeastern Utah. In this study, we evaluated how has affected soil organic carbon nitrogen to a depth 50 cm grasslands located relict actively-grazed sites Canyonlands physiographic section Colorado Plateau. We also differences plant ground cover spatial distribution resources. Results show that areas used by domestic 20% less 100% compared browsed native ungulates. actively grazed sites, appears lead clustered, rather than random, Magnetic susceptibility, proxy for stability region, suggests increases erosion leading an increase area nutrient-depleted bare ground. Overall, these results, combined with previous suggest affects both fertility potential long-term implications sustainability operations semi-arid landscape.
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