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Response of soil physical characteristics to yak grazing intensity on mixed sown perennial grass pastures in Yangtze and Yellow river source region



Response of soil physical characteristics to yak grazing intensity on mixed sown perennial grass pastures in Yangtze and Yellow river source region



Pratacultural Science 22(6): 65-70



Plots of Elymus nutans and Puccinellia tenuflora mixed sown pastures were treated by grazing at 0 (control), 20, 40, 60 and 80%, respectively. Each of the treatments was grazed by 4 castrated yaks of 2.5 years old. The soil moisture, firmness and soil volume weight were investigated during the test period of June 20 to September 20 in 2003 and 2004. The soil moisture decreased whereas the soil firmness and volume weight increased with the grazing intensity.

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