放牧强度对草甸草原植物群落特征及营养品质的影响
张宇,侯路路,闫瑞瑞(
),辛晓平
),辛晓平
Effects of Grazing Intensity on Plant Community Characteristics and Nutrient Quality of Herbage in a Meadow Steppe
ZHANG Yu,HOU LuLu,YAN RuiRui(),XIN XiaoPing
),XIN XiaoPing
图3. 不同放牧强度下植物群落生物量变化
优势物种包括羊草和贝加尔针茅;退化指示物种包括冷蒿、二裂委陵菜、星毛委陵菜和寸草苔。不同小写字母表示不同放牧强度之间差异显著（P<0.05）。下同
Fig. 3. Biomass changes of plant communities under different grazing intensities
The dominant species include Leymus chinensis and Stipa baicalensis; The degraded indicator species include Artemisia frigida, Potentilla bifurca, Potentilla acaulis and Carex duriuscula C.A.Mey.. Different lower case letters mean significant difference among four grazing intensities at 0.05 level. The same as below
