Global warming had provided both opportunities and challenges for further grain increase in Northeast China. Climate warming in particularly Northeast China had resulted in the extension of frost-free period, which had increased the productive potential and extended planting area of crops in the region. With climate warming and rapid development in modern agriculture, Northeast China had become a region with the most potential for additional increase in grain production. However, high frequencies of extreme climate (e.g., cold, flood, especially drought) associated with global warming have also threatened further grain increases in Northwest China. To efficiently resolve the problems of grain allocation, transportation, processing and transformation, and to enhance farmers' income, a number of grain security development strategies in Northeast China were advanced in this paper. The strategies included stable increases in gross grain output, well developed grain export mechanism, accelerated grain allocation, transportation, processing and transformation. As an important criterion, Northeast China should be transformed not only from a grain production to grain processing and transformation base, but also from a region driven by grain production to a region driven by agro-economy.%气候变暖为东北地区粮食新增潜能带来机遇与挑战.东北地区气温升高,无霜期延长,作物生产潜力提高,作物栽培区域北移和扩大,粮食播种面积增加,加上东北地区现代农业高度发达,成为我国粮食新增潜力最大的地区.但极端天气频繁发生,部分地区有干旱趋势,为东北粮食新增带来不利影响.针对东北地区粮食外运困难,粮食加工转化能力薄弱,农业增收困难等问题,提出东北地区粮食安全发展的战略,即巩固提高粮食总产,稳定发展粮食出口,加快粮食调运,快速发展粮食加工,促进粮食转化,变粮食生产基地为粮食加工转化基地,变粮食主产区为农业经济发达地区.
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