Effects of Climate Changes on the Pasture Productivity From 1961 to 2016 in Sichuan Yellow River Source, Qinghai-Tibet Plateau, China

Meteorological station data from 1961 to 2016 in the Sichuan Yellow River Source (SYRS) was used analyze trends precipitation and temperature. The Thornthwaite Memorial model GIS technology were calculate response of pasture productivity climate change. A prediction established predict its results showed that: (1) annual presents a slight downward trend, at rate −10.16 mm⋅(10a) –1 . average temperature exhibited an upward (10a) , herbage linearly increasing with increase 80.07 g⋅m –2 ⋅(10a) (2) In terms spatial distribution, decreased southwest northeast. influence on greater than that SYRS. (3) “warm-wet” conducive productivity. predicted by 1 or 2°C, 10 20% between 7.15 14.30%. (4) Grassland degradation continues occur ecological restoration measures should be implemented control grassland degradation.