“…Agriculture is mainly to provide sufficient food for the growing human population, which is predicted to require an increase of global food about 60~110% by 2050 (Foley et al, 2005;Pardey, Beddow, Hurley, Beatty, & Eidman, 2014). In mountainous areas, more people experienced food insecurity and poverty than at lowland areas due to limited agricultural land (Gratzer & Keeton, 2017). However, agriculture is also the largest driver of global environmental change, such as biodiversity loss, water pollution and emissions of greenhouse gases (Tilman et al, 2001;Foley et al, 2005;Steffen, Crutzen, & McNeil, 2007).…”