中国小麦成本收益及不同地区的比较优势分析

THE COST AND BENEFIT OF CHINESE WHEAT AND THE COMPARATIVE ADVATAGE ANALYSES IN DIFFERENT AREAS

近几年我国小麦成本收益比较优势越来越小,并伴随着小麦占耕地比例和小麦播种面积的下降,小麦产量也不断下降。各种农作物,特别是有耕地竞争的农作物间的经济效益对小麦布局、播种面积和产量的影响较大。该文通过对不同地区小麦与其耕地竞争作物成本收益率进行比较,并考虑小麦品质和国家政策等因素的影响,找出目前我国小麦播种面积下降的原因。

In recent years, the comparison advantage of cost and benefit of Chinese wheat is becoming fewer and fewer, and at the same time the ratio, crop area and the yield of wheat begins to descend. The economic benefits of different crops, especially the crops with land competing, will effect on the distribution, crop area and yield of wheat. Depending on the comparison of the cost and benefit of wheat in different areas, the wheat quality and national policy, this article will find out the fundamental reason of the declination of crop area of wheat.