Research Observation: Chemical Repellants to Reduce Grazing Intensity on Reclaimed Sites

Selenium toxicity in sheep grazing reclaimed phosphate mining sites.

Phosphate mining operations in southeastern Idaho have exposed selenium (Se) that was originally sequestered in the subsurface. Sheep grazing in these areas have died as a result of high Se concentrations in forage and water. This study was designed to monitor the health status of sheep grazing in a natural environment with known elevated levels of Se. A total of 72 Columbia x Suffolk sheep wer...

Seasonality constraints to livestock grazing intensity.

Increasing food production is essential to meet the future food demand of a growing world population. In light of pressing sustainability challenges such as climate change and the importance of the global livestock system for food security as well as GHG emissions, finding ways to increasing food production sustainably and without increasing competition for food crops is essential. Yet, many un...

effect of grazing intensity on some soil chemical characteristics in gardaneh zanburi rangeland of arsanjan

introduction:changes caused by grazing on range ecosystem are generally assessed based on the soil conditions and vegetation. livestock as one of the major elements in range land ecosystems has different effects on different parts of this ecosystem. one of these impacts is excessive livestock grazing capacity which can have different effects on soils and plants in various intensities. materials...

Combination effect of grazing intensity and livestock type (sheep, cattle and integrated grazing) on physical and chemical properties of soil (Case study: woody rangelands of Savadkouh city, Mazandaran)

Intense grazing of rangeland is one of the most important factors affecting rangeland degradation, which causes soil compaction, increased runoff, weakening and degradation of vegetation, and changes in rangeland species composition, and ultimately affects forage and livestock production. The present study was conducted to investigate the different intensities of cattle and sheep grazing and in...

Effects of Herbivory on Plant and Soil Characteristics; Allometric Relationships Change among Different Grazing Sites