Beef production and net revenue variability from grazing systems on semiarid grasslands of North America

摘要: Abstract Sustainability of ranches and rural economies in the Great Plains western North America is contingent on economic vitality beef production a changing climate. Our objective was to measure compare interannual variability (kg/ha) net returns ($/ha) over past 15 years (2003–2017) from grazing yearlings at three different intensities (light, moderate heavy) semiarid shortgrass steppe mid-May October. Four useful insights emerged: 1) A ranking variability, lowest highest, reveals that had coefficient variation (CV = 17–29%), followed by aboveground primary (ANPP, 26–32%), spring/early summer precipitation (36%) revenue (107–139%). 2) Beef increased with intensity during average wet years, but not dry years. early August September became negligible end season. Overall, were 41% 38% greater for heavy compared recommended intensity, respectively. 3) Removing pastures rather than traditional October timing would provide opportunities ranchers increase returns. 4) Forage production, estimated through remote sensing information, positively associated steeper slope indicating sensitivity this level. Economic sustainability rangeland ecosystem challenged high revenues. This suggests should focus understanding agricultural principles, livestock marketing, available options reducing price risk. These efforts enhance both individual ranching operations economies.