过去十年全球非织造布贸易稳步增长,中国成为全球领先出口国2008年金融危机逐步演化为世界经济危机,严重影响了全球的商品和服务贸易。2008～2009年间的全面贸易衰退重新激发了研究者监测新的全球化经济环境下国际间商品贸易流量的兴趣。贸易统计和GDP统计存在明显差异,商品贸易统计记录货物的全部价值,而GDP只统计商品和服务生产过程中的增加值;因此中间产品的贸易额只是通过每一步生产过程的附加值计入GDP,在商品贸易统计中,中间产品每次越过国 Over the past ten years, the global non-woven fabric trade has grown steadily and China has become the world’s leading exporter. In 2008, the financial crisis gradually evolved into a global economic crisis that seriously affected global trade in goods and services. The overall trade downturn between 2008 and 2009 has rekindled the interest of researchers in monitoring international commodity trade flows in the new globalized economy. There is a clear difference between trade statistics and GDP statistics. Commodity trade statistics record the full value of goods, whereas GDP only counts the value added in the production of goods and services. Therefore, the trade volume of intermediate products is calculated only by the added value of each step of the production process In the trade statistics of commodities, each time the intermediate product crosses the country