1, spring ploughing: till the land before spring sowing. After beginning of spring, spring ploughing is about to begin. In some areas of China, the custom of spring ploughing has been handed down.

2. Xia Yun: We are talking about weeding in summer.

3. Autumn harvest: refers to the harvest of crops in autumn, mainly including rice, corn, cotton, tobacco leaves and sesame.

4. Winter storage: refers to farmers' storage of harvest in winter.

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1, spring ploughing, Xia Yun, autumn harvest and winter storage fully summarize the life of farmers in northern China. A year belongs to four distinct seasons, and our farmers in northern China will make different agricultural preparations in different solar terms. These four sentences summarize the life of farmers in northern China.

2. Northeast China is hot and rainy in summer and cold and dry in winter. It shows cold and wet characteristics in the natural landscape, and its formation and development are closely related to its geographical location. Northeast China is the highest latitude area in China. Cold in winter and high latitude are the basic factors, and the relative position also plays an obvious role.

3. Northeast China refers to the region consisting of Heilongjiang, Jilin and Liaoning provinces and Dongwumeng City in Inner Mongolia, and also belongs to the secondary economic zone, with a land area of 654.38+02,600 square kilometers, accounting for 654.38+03% of the national land area. Northeast China is an important industrial and agricultural base in China, which has a very important strategic position in safeguarding national defense security, food security, ecological security, energy security and industrial security.