Fig. 4From: China’s conversion of cropland to forest program: a systematic review of the environmental and socioeconomic effectsCase studies by year of CCFP intervention. The blue line marks the boundary between short-term and long-term studies, i.e. less than 5 years of CCFP implementation (left of the line), or above 5 years of CCFP implementation (right of the line)Back to article page