The 'Conversion of Cropland to Forest Program' (CCFP) as a national 'Payment for Ecosystem Services' (PES) scheme in China Institutional structure and roles, ensuring voluntarism and conditionality of subsidy payments - Zhang, K.; Artati, Y.; Putzel, L.; Xie, C.; Hogarth, N.J.; Wang, J.N.; Wang, J. (2017)