放牧对温性荒漠草原植物群落及草地土壤肥力的影响

摘要

The plant community characteristics and physical and chemical factors of soil in temperate desert steppe under different grazing intensities were analyzed. Results showed that plant dominant species were different between different grazing intensities and the height and frequency of the dominant species changed accordingly too. The total cover and gross density of vegetation were lower in heavy grazing than in other grazing areas significantly (P