江苏省中部是典型的人多地少、土地后备资源制约型地区,且养殖业发达,粮、饲、经作供求矛盾突出。1986年以来,该区逐步改革耕作制度,优化种植结构,在稳定粮食生产的基础上,充分利用温光水资源,通过间套、复种和立体种植,并发展以蔬菜为主的小宗经济 The central part of Jiangsu Province is a typical area where there are many people and less land, land reserve resources are constrained areas, and the aquaculture industry is well developed. The contradiction between supply and demand of grain, feed and trade has been prominent. Since 1986, the district has been gradually reforming the farming system and optimizing the planting structure. On the basis of stabilizing food production, it has made full use of the Wen-Guang water resources and has adopted the intercropping, multiple cropping and three-dimensional planting and the development of small vegetable-based economy