Litter Decomposition of Potentilla fruticosa Shrub and Kobresia humilis Meadow in Qinghai Tibet Plateau Carbon budget of alpine Potentilla fruticosa shrubland based on comprehensive techniques of static chamber and biomass harvesting STRUCTURE CHARACTERISTICS AND BIOMASS OF POTENTILLA FRUTICOSA SHRUB IN QINGHAI-XIZANG PLATEAU Effect of Fencing on Lightly and Heavily Grazing Potentilla Fruticosa Shrublands Physiological-biochemical Response of Potentilla fruticosa to High Temperature Stress Vegetation Responses to A Long-term Grazing Intensity Experiment in Alpine Shrub Grassland on Qinghai-Tibet Plateau Effects of nitrogen and phosphorus fertilization on legumes in Potentilla fruticosa shrub in alpine meadow