Moderate and Light Cattle Grazing Effects on Chihuahuan Desert Rangelands
نویسندگان
چکیده
منابع مشابه
Forum Effects of Grazing Pressure on Efficiency of Grazing on North American Great Plains Rangelands
Comparisons of stocking rates across sites can be facilitated by calculating grazing pressure. We used peak standing crop and stocking rates from six studies in the North American Great Plains (Cheyenne, Wyoming; Cottonwood, South Dakota; Hays, Kansas; Nunn, Colorado; Streeter, North Dakota; and Woodward, Oklahoma) to calculate a grazing pressure index and develop relationships for harvest effi...
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Understanding metabolic differences between breeds of cattle is important when selecting for production in semiarid environments. Spring-calving multiparous Angus and Brahman cows (n = 8/breed) grazing in the Chihuahuan Desert were used to evaluate metabolic hormone status in February (i.e., 3rd trimester of pregnancy), May (i.e., early lactation), and September (i.e., late lactation) 2000. Cru...
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[1] A simplistic model of grass-shrub dynamics was used to investigate the role of grass demographic processes on grassland-shrubland dynamics when grasses are in competitive advantage over shrubs. The model suggests that a feedback between grass biomass and soil erosion may cause an abrupt transition to a shrubland state. The model explains how a simple change in either grass recruitment or gr...
متن کاملEffects of simulated storm sizes and nitrogen on three Chihuahuan Desert perennial herbs and a grass
Establishment and growth of three perennial herbs and a small tussock grass were studied in an experiment that provided simulated rainfall of 6 mm week 1 or 25 mm once per month and nitrogen fertilization in combination with the different simulated rainfall regimes. Wild onion, Allium macropetalum, failed to establish in plots receiving 25 mm month 1 simulated rainfall. The perennial composite,...
متن کاملManaged grazing and seedling shelters enhance oak regeneration on rangelands
F nearly a century there has been concern that several of California’s 20 native oak species are not regenerating adequately (Jepson 1910). Such concern was partially responsible for the 1986 establishment of the Integrated Hardwood Range Management Program (IHRMP), a cooperative effort to promote oak woodland conservation by UC, the California Department of Forestry and Fire Protection, and th...
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ژورنال
عنوان ژورنال: Journal of Range Management
سال: 2003
ISSN: 0022-409X
DOI: 10.2307/4003896