Table 2 The variation of NPP and PUE in different forests (cool deciduous coniferous forests (CDCF), temperate coniferous broad-leaved mixed forests (TCBMF), warm temperate deciduous broad-leaved forests (WTDBF), subtropical evergreen broad-leaved forests (SEBF), and tropical rain forests, monsoon forests (TRF)) across the North-South Transect forests in China (2000–2010). y is the indicator of NPP and PUE; x is the years 2000–2010; y₀ is the intercept; and a is the slope; R² is the linear correlation coefficient

From: Precipitation mediates the temporal dynamics of net primary productivity and precipitation use efficiency in China’s northern and southern forests