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农业系统是一个开放的、具有耗散结构的生态—经济—社会三维复合系统,发展农业生产必须因地制宜,为此需要进行农业区域划分。文章在确立生态农业区划原则、明确分区依据的基础上,建立了东北地区生态农业区域划分指标体系,运用层次聚类分析法把整个东北地区分为6个大生态农业区、14个二级生态区。东北地区作为我国具有战略意义的商品粮基地,充分发挥地域生态优势,是把它建成我国粮食安全基地与绿色农畜产品基地的必然趋势。
The agricultural system is an open, ecologically-economic-social three-dimensional compound system with dissipative structure. The development of agricultural production must be adapted to local conditions. Therefore, the division of agricultural regions is needed. Based on the principle of zoning of ecological agriculture and the clear basis of zoning, this paper established the index system of zoning of ecological agriculture in northeast China. The hierarchical clustering analysis method divides the entire northeast region into 6 large ecological agriculture zones, 14 secondary ecological zones Area. Northeast China, as a strategic commodity grain base in our country, gives full play to its regional ecological advantages and is an inevitable trend of building it into a base of food security in our country and a base of green agricultural and livestock products.