我国磷矿资源主要分布在云南、贵州、湖北、四川等地。其中适于生产高效磷复肥的优质磷矿又主要集中在云南和贵州。随着国家加大国产高浓度磷复肥“以产项进”的力度,国内高浓度磷复肥企业对优质磷矿石的需求量越来越大。但由于近年来磷矿石出口增长过快,加上运往全国各地的磷矿石比较效益较运输其它物资差,有关省份缺乏外运矿石的积极性,相继调整了外运产品结构,磷矿石外运量不 China’s phosphate resources are mainly distributed in Yunnan, Guizhou, Hubei, Sichuan and other places. Among them, high-quality phosphate rock suitable for producing high-efficiency phosphorus compound fertilizers is mainly concentrated in Yunnan and Guizhou. As the country increases the intensity of domestic production of high-concentration phosphate and compound fertilizers, the domestic demand for high-quality phosphate and compound fertilizer companies is increasing. However, due to the excessive growth in the export of phosphate ore in recent years, and the fact that the phosphate ore shipped to all parts of the country is more profitable than other transport materials, the relevant provinces lacked the enthusiasm of Sinotrans’s ore, and have successively adjusted the structure of Sinotrans’s products. Traffic is not