Figure 1

Responses of the normalised difference vegetation index (NDVI), green NDVI (GNDVI) and soil-adjusted vegetation index (SAVI) to experimental warming and clipping in (a,d,g) 2013, (b,e,h) 2014 and (c,f,i) 2015 in alpine meadows at sites A, B and C on the Tibetan Plateau. *, ** and ***indicate pā<ā0.05, pā<ā0.01 and pā<ā0.001, respectively.