Developmental models of eco-agriculture in Shaanxi Province

According to natural conditions and agricultural resource，Shaanxi Province is divided into 6 agricultural geography zones including aeolian sand zone in the north of Shaanxi，loessial hill ravine zone in the north of Shaanxi，droughty plain zone in the north of Weihe River，the centra1 Shaanxi plain zone，the zone of the Qinling Mountain and the Daba Mountain，as well as Hanzhong basin．The 12 developmental models of eco-agriculture are put forward respectively，such as the model of prevention and cure on land degradation or soil erosion，the oasis model in desert，the combinative model of agriculture and forestry as well as livestock farming，the combinative model of grain and fruit，the combinative model of farming and breeding as well as machining，the ecological proiect model of green foodstuff industrialization，the ecological proiect model of special forest product exploitation，the model of cultivating mulberry and sericicuhure as well as pod machining，the substance circle utilization model of farming and breeding as wel1 as marsh gas，etc．