关键词: 农业结构调整, 比较优势, 区域效应, 粮食安全, 中国

Abstract:

With the beginning of strategic structure adjustment of national economy in 1997, the agricultural structure adjustment is placed on the important schedule in China. On the whole each province or autonomous region can focus on the all-side adjustment of quality-structure and varieties of agricultural products, agricultural industrial structure and regional structure at different scales. Comparative typical modes may reduce to modern urban agriculture, high-quality and special use agriculture, agricultural mode driven by supporting industries, agricultural mode guided by the market, agricultural mode led and supported by the government and agricultural mode independently managed by the farmers. They are on behalf of the feasible direction of the adjustment of China's agricultural structure. The increasing ratio of distinctive agriculture is 3.1% in 1997-2000. With thorough development of strategic adjustment of agricultural structure, superior regions of farm produce and distribution, industrial straps and new patterns of agricultural bases have formed. But due to the difference of comparative superiorities, the effects of the agricultural structure adjustment are quite different. On the whole, the north excels the south, the Yellow River drainage area excels the Yangtze River drainage area, and traditional agricultural areas excel other agricultural areas. The regulation of regional policies exerts especially important function on the agricultural structure adjustment. In recent years, "decreasing foodstuff crops production, enlarging distinctive economic crops production", have become a highlight of the adjustments of agricultural structure among the regions. From 1997 to 2000, foodstuff crops seeding areas and foodstuff yield in China respectively dropped 3.97% and 6.47%. And there are 22 provinces and municipalities in China whose foodstuff yields drop visibly. The agricultural structure adjustment focuses on boosting high-quality, mass-production and regional distinctiveness of the products, but we can not attend to one thing and lose another. Loosening the vigilantness of food security necessarily leads to the big drop of food security in China and we have to attach high importance to it.

Key words: agro-structural adjustment, comparative advantage, regional effect, food security