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Based on the examination of a lifetime Ding Wenjiang study found Wenjiang life are the most important scientific achievements accomplished in the Southwest, he returned overseas students from 1911 to 1930 has four scientific expedition went to Southwest, Southwest's geology and geography , mining, transportation, nationality, language, etc. make an important contribution, as Ding Wenjiang himself in the poem \investigation as a whole to conduct specialized research. 1911 chiang graduated from the University of Glasgow home, choose to take the train from Vietnam Dianyuetielu into Yunnan, Guizhou home via the East, began his first domestic trip. Ding Wenjiang became the first passenger train ride Dianyuetielu one of the earliest modern chronicles the Yunnan transport and modern customs operations, as well as border areas of Yunnan and Vietnam blend of Eastern and Western cultures collide and social changes brought along Dianyuetielu landscape, is Dianyuetielu early opening of precious information. During this trip, Ding Wenjiang also found in Guizhou Province Yunnan-Guizhou Avenue errors on the map segment, witnessed the Southwest regional transportation, economic backwardness, as he later designed west railway system, to seek economic alternatives southwest foreshadowed. Although this is just an ordinary nature travel, but for the future conduct special investigation Ding Wenjiang ready. 1914 Ding Wenjiang trip to the southwest, on the old tin and Dongchuan copper mining depth investigation. He was the first one expedition frontier of Yunnan Geology and Mineral Resources of China systematic research scholars. Ding Wenjiang on February 19 arrived old, April 13 visits back to the end of Kunming on up to five days of the expedition old, he traveled almost the whole territory of old, with a unique perspective geologist old tin mining area on the topography of the terrain, the underlying mineral resources, reserves, exploration status and tin mining, washing, refining, transportation, made a detailed comprehensive exposition, he was the first to use modern scientific language interpretation Yunnan Mining Technology development scholar, he visits old tin mine is the most powerful Travels text, can be regarded as the first modern old tin mine geology, geography and science intersect mining scientific observations, is an old traditional way of tin mining and milling and its transformation to a modern mining earliest record, is the study of the process of modernization resources, environment and social change consolidated information. In addition, Ding Wenjiang also specifically examines the Dongchuan Copper Mine, Dongchuan Qing Dynasty compiled a detailed history of copper mining, analyzes the reasons for the various ups and downs during the smelter, and made specific improvements opinions. Transportation is another focus of attention has long Ding Wenjiang, Wenjiang as a geologist, traveled southwest provinces, well aware of the situation on the mountains around, he will be a survey of regional economic geology and railway line design combined with rich mineral and cheap rail transport can not be separated, he designed the railway line has the greatest economic value. In 1929 the Ministry of Railways Organization southwest southwestern provinces Geological Survey team can build a railway Xing, Wenjiang proposed addition to the Ministry of Railways has decided to exploration Hunan Yunnan, Yunnan Guangdong Road, the survey should also pass from Chongqing, Sichuan, Guizhou and Guangxi to reach Guangzhou Bay route, called \Southwest Sichuan Wenjiang Canton Railway is a concentrated expression of the results of scientific investigation, that he thought Geological Survey regional economy mainly expressed. In addition to mining, transportation studies, Ding Wenjiang Southwest Minorities also very interested in, he was the first \ethnic costumes, languages ??are thoroughly documented and described, he collected the \He lived in a toast during the mission home, the chieftain of life, power and oppression earth people have real feelings, toast from different levels to show the real situation, to provide a new perspective of toast.
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