黄河源区生态保护与草牧业发展关键技术及优化模式

徐田伟, 赵新全, 耿远月, 王循刚, 毛绍娟, 徐世晓

Key technologies and optimization model for ecological protection and grass-based livestock husbandry in the source region of the Yellow River

XU Tianwei, ZHAO Xinquan, GENG Yuanyue, WANG Xungang, MAO Shaojuan, XU Shixiao

表3 不同放牧制度下高寒草原的植被群落特征和生物量

Table 3 Vegetation community characteristics and biomasses in an alpine steppe under different grazing regimes

指标类型 传统常年连续放牧 冷季适度放牧 暖季适度放牧 群落高度/cm 3.61±0.20 b 14.63±0.68 a 13.27±1.20 a 植被覆盖度/% 73.20±2.15 b 85.25±1.36 a 82.61±2.77 a 植被地上生物量/(g/m2) 71.34±9.15 b 126.62±9.02 a 100.07±8.59 a 植被地下生物量/(g/m2) 867.34±103.03 b 1347.81±102.43 a 1083.81±85.03 ab