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Fig 1.

The altitude, meteorological stations, and vegetation types across the Loess Plateau.

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Table 1.

Statistics of trends in seasonal Tmax /Tmin and NDVI from 1982 to 2015.

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Table 1 Expand

Fig 2.

Trends of Tmax /Tmin and NDVI in spring over the Loess Plateau from 1982 to 2015.

(a) the slope of Tmax; (b) the slope of Tmin; (c) the slope of NDVI; (d) the significance level of Tmax trends; (e) the significance level of Tmin trends; and (f) the significance level of NDVI trends.

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Fig 2 Expand

Fig 3.

Trends of Tmax /Tmin and NDVI in summer over the Loess Plateau from 1982 to 2015.

(a) the slope of Tmax; (b) the slope of Tmin; (c) the slope of NDVI; (d) the significance level of Tmax trends; (e) the significance level of Tmin trends; and (f) the significance level of NDVI trends.

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Fig 3 Expand

Fig 4.

Trends of Tmax /Tmin and NDVI in autumn over the Loess Plateau from 1982 to 2015.

(a) the slope of Tmax; (b) the slope of Tmin; (c) the slope of NDVI; (d) the significance level of Tmax trends; (e) the significance level of Tmin trends; and (f) the significance level of NDVI trends.

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Fig 4 Expand

Fig 5.

Trends of Tmax /Tmin and NDVI in winter over the Loess Plateau from 1982 to 2015.

(a) the slope of Tmax; (b) the slope of Tmin; (c) the slope of NDVI; (d) the significance level of Tmax trends; (e) the significance level of Tmin trends; and (f) the significance level of NDVI trends.

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Fig 5 Expand

Table 2.

Partial correlation coefficients between NDVI and Tmax and Tmin for different vegetation types in different season over the Loess Plateau.

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Table 2 Expand

Fig 6.

Spatial patterns of the correlations between NDVI and corresponding Tmax or Tmin over the Loess Plateau from 1982 to 2015 among seasons.

(1) spatial patterns of the correlations between NDVI and corresponding Tmax or Tmin in spring; (2) spatial patterns of the correlations between NDVI and corresponding Tmax or Tmin in summer; (3) spatial patterns of the correlations between NDVI and corresponding Tmax or Tmin in autumn; (4) spatial patterns of the correlations between NDVI and corresponding Tmax or Tmin in winter;(a) The partial correlation coefficients between NDVI and Tmax. (b) The partial correlation coefficients between NDVI and Tmin;(c) significance level of the partial correlation coefficients between NDVI and Tmax; and (d) significance level of the partial correlation coefficients between NDVI and Tmin.

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Fig 6 Expand