5 Conclusions
Water availability significantly increased the total biomass of plant
species. Remarkably, water availability affected the biomass allocation
of plants, which were modified by species. Generally, increasing water
availability did not impact or increased R: S of plant species that
dominant in the lightly degraded grasslands, while it decreased R: S of
plant species that dominant in the heavily degraded grasslands. Thus,
biomass allocation of plants is an important indicator to explore the
responses of plants to climate change, which should be further explore
by considering more complicated conditions such as jointed effects of
temperature and precipitation.