Fig. 1From: Can vegetation index track the interannual variation in gross primary production of temperate deciduous forests?A map of study area with the location and photo image of eddy-flux tower. The four squares and the circle represent the four pixels of MODIS and the reflective footprint of the radiometers installed on the tower (90% of signal), respectively. The vegetation map of China adopted from Su et al. (2020)Back to article page