farmland system 第1页

Material flux of agro-forestry systems on slope iu hilly regions of Sichuan basin Nitrogen balance in the farmland system based on water balance in Hetao irrigation district,Inner Mongolia Spatial features of input-output of mountainous farmland system aided by GIS—A case study from Wugou Village,Henan Province Comparison of different straw cycling modes in farmland ecosystems in Chengdu Plain based on emergy theory