1938 Yellow River flood

The 1938 Yellow River flood (Chinese: 花園口決隄) was a man-made flood from June 1938 to January 1947 created by the explosion of dikes (levees). The first wave of floods hit Zhongmu County on 13 June 1938. The flood was planned in 1935 by a group of German military advisers led by GenLt Alexander von Falkenhausen and implemented by the Chinese National Army.[1]

Flooded area (1938)

The flood acted as a scorched-earth defensive line in the Second Sino-Japanese War.[2][3][4] The long term strategic intent was, firstly, to safeguard the Shaanxi section of the Longhai railway, where the Soviet Union sent their military supplies to the Chinese National Army from August 1937 to March 1941,[1][5] and secondly, to shut the Japanese Army out of Shaanxi, thereby preventing them from entering the Sichuan basin, where the wartime capital of Chongqing was located.[1] The short term strategic intent was to buy one to three months of time for the Battle of Wuhan by preventing the Japanese from sending her troops and supplies via the Zhengzhou junction of the Beijing–Wuhan Railway.[1][6][7][8]

The flood achieved the above strategic intent, in particular; the Japanese Operation 5 never capture Shaanxi, Sichuan or Chongqing. However, the flood came at a cost: 30,000 to 89,000 civilians drowned immediately in Henan, Anhui and Jiangsu provinces,[9][10][11] and a total of 400,000 to 500,000 civilians died from drowning, famine and plague.[12][13] The Yellow River was diverted to a new course over swathes of farmland until the repair of the dykes in January 1947. Five million civilians lived on such inundated land until 1947.[13] Inspired by the strategic outcome, dykes elsewhere in China, especially along the Yangtze, were later destroyed by the Chinese and the Japanese.[2]

The flood
Soldiers of the National Revolutionary Army fighting in the flooded area of the Yellow River.

The flood was planned in 1935 by a group of German military advisers led by GenLt Alexander von Falkenhausen. After the Chinese was defeated in the Battle of Xuzhou, the Zhengzhou junction of the Beijing–Wuhan Railway was within reach by the Japanese. The Chinese National Army implemented the flood plan. The original plan was to use explosives to destroy the dike (levee) of Zhaokou, but due to difficulties at that location, the dike of Huayuankou, on the Yellow River's south bank, was destroyed on June 5 and June 7 via tunneling,[14] with waters flooding into Henan, Anhui, and Jiangsu. The floods covered and destroyed thousands of square kilometers of farmland, and shifted the course of the Yellow River hundreds of kilometers to the south.[15]

After the flooding, the Yellow River was diverted from its earlier course at Huayuankou, and flowed into the Jialu River in Zhongmu County. The new course led the Yellow River into the Shaying River at the city of Zhoujiakou (now Zhoukou), eventually joining the Huai River. Water overflowed from these smaller rivers, causing widespread destruction in the basin. According to a postwar report, floods inundated 32 percent of land and 45 percent of villages in 20 affected counties.[16]

Effect on the war

The flood bought time for the Battle of Wuhan.[1][7] The flood stopped the Japanese Army from capturing the Zhengzhou junction of the Beijing–Wuhan Railway.[6] Unintentionally, the flood also destroyed the Bengbu railway bridge of the Tianjin–Pukou Railway.[1] The Japanese thus could not use both railways to send its troops and supplies.[1]

The Chinese National Army took the opportunities to encircle the swamped Japanese army. The 14th division was swamped in Zhongmu County and could only reassemble on 23 June. The isolated 16th was crushed by the Chinese National Army in Weishi County on 24 June and could only reassemble on 7 July.[6]

Most of the flooded towns and transport lines had already been captured by the Japanese; after the flood, the Japanese could not consolidate their control over the area. In fact, large parts of it became guerrilla areas.[17]

Casualties

The immediate drowning deaths were estimated to range from 30,000 (Kuo Tai-chun, 2015)[9][10] to 89,000 (China Academy of Sciences, 1995).[11] The total deaths resulted from floods, famine and plague had wild estimates. Two professional sources put it to "between 400,000 and 500,000", according to Wang Zhibin (1986)[12] and Bi Chunfu (1995),[13] an editor at the Yellow River Conservancy Commission of the Ministry of Water Resources and a researcher at Second Historical Archives of China respectively. A much higher estimate of 893,303 total deaths given by the Nationalist government's relief statistics in 1948[18] was discredited for its unspecified methodology of body counting and its questionable approximation of the missing figure of Anhui province.[19][20] The Nationalist government's relief statistics were even higher than two early communist estimates in the 1950s, which put the total deaths to 470,000 and 500,000 respectively.[19] However, subsequent communist sources generally upheld the 893,303 figure to portray the Nationalist government as inhumane.[19]

The figures of inundated land were exploited by Nationalist propaganda. Initially, the Nationalist government falsely claimed that the flood was caused by Japanese aerial bombing, hence the Nationalist initially claimed 12 million peasants living on inundated land to boost anti-Japanese public sentiment.[19][20] Bi Chunfu (1995) estimated that 5 million peasants were living on the inundated land.[13] Bi's figure was echoed by two early communist estimates in the 1950s, which estimated 6.1 million and 5 million respectively.[19]

Aftermath
Japanese troops guarding Chinese refugees displaced by war and the Yellow River Flood, China Jun-Jul 1938

Besides the massive death toll, the flooded areas were affected for years to come. The flooded countryside was more or less abandoned and all the crops destroyed. Upon the recession of the waters, much of the ground was uncultivable as much of the soil was covered in silt. Many of the public structures and housing were also destroyed, leaving any survivors destitute. The irrigation channels were also ruined, further adding to the toll on the farmlands.[17] The destruction also had a long-term psychological effect on the Chinese population.

Chiang and the Nationalist government were slow to provide disaster relief.[21]: 40  Unable to fully decide which group deserved more blame for the catastrophe, the Nationalists or the invading Japanese, many survivors blamed both sides. Believing that the civilians would help them, the Chinese Communists turned the flooded area into a recruiting ground, directing survivors' anger towards a common enemy to bring them into their ranks. By the 1940s the area had evolved into a major guerrilla base known as the Yuwansu Base Area.[17]

Repairs

Attempts to seal the breach and return the river to its former course were made in 1946 by the KMT with assistance from UNRRA. Work began in March and was completed in June, but the dams were again destroyed by large summer flows.[22] Subsequent repairs succeeded and were eventually completed in March 1947.

See also
Wikimedia Commons has media related to 1938 Yellow River flood.

References
  1. 渠长根 (2003). 功罪千秋——花园口事件研究. East China Normal University (PhD). pp. 23–24, 28, 37–38, 72–73, 188–196.
  2. Di Wu, "The cult of geography: Chinese riverine defence during the Battle of Wuhan, 1937-1938". War in History. Volume: 29 issue: 1, page(s): 185-204. https://doi.org/10.1177%2F0968344520961548
  3. Dutch, Steven I. (November 2009). "The Largest Act of Environmental Warfare in History". Environmental & Engineering Geoscience. 15 (4): 287–297. doi:10.2113/gseegeosci.15.4.287.
  4. Muscolino, Micah S. (2014). The Ecology of War in China: Henan Province, the Yellow River, and Beyond, 1938–1950. Cambridge University Press.
  5. 张龙杰 (2019). "全面抗战时期苏联对国共两党援助比较研究". 深圳社会科学 (4).
  6. 防衛庁防衛研修所戦史室 (1976). 支那事変陸軍作戦＜2＞昭和十四年九月まで. 朝雲新聞社. pp. 77–78, 125 – via ebook on Japan National Institute for Defense Studies.
  7. 傅應川; 洪小夏 (2015). "第十章 重探徐州會戰". In 郭岱君 (ed.). 重探抗戰史（一）：從抗日大戰略的形成到武漢會戰1931-1938. Taipei: 聯經. p. 437-440, 447-449.
  8. Eastman, Lloyd E. (1986). "Nationalist China during the Sino-Japanese War 1937-1945". In Twitchett, Denis; Fairbank, John (eds.). The Cambridge History of China, Volume 13: Republican China 1912-1949, part 2. Cambridge University Press. p. 555.
  9. 朱蕾 (2015-10-27). "資料解密：黃河花園口決堤 阻敵南下". World Journal. Whitestone, NY. Archived from the original on 2018-08-18 – via United Daily News.
  10. 李怡芸 (2015-09-30). "重探抗戰史 黃河決堤有效禦敵". 旺報. Taipei: China Times Group.
  11. 汤其成; 李秀云; Institute of Geographic Sciences, China Academy of Sciences (1995). "水圈中的自然灾害". In 王劲峰 (ed.). 中国自然灾害区划——灾害区划、影响评价、减灾对策. Beijing: 中国科学技术出版社. p. 41.
  12. 王质彬 (1986). "泛区面积及受灾人口考". In 郑州市政协文史资料委员会 (ed.). 郑州文史资料第2辑. pp. 92–96. Also cited in 杨国顺 (2003). "第十章 半封建半殖民地制度下的黄河". In 黄河水利委员会 (ed.). 黄河水利史述要 (新排本). 黄河水利出版社. p. 407.
  13. 畢春富 (1995). 抗戰江河掘口祕史. Taipei: 文海學術思想研究發展文教基金會. p. 60. Also cited in Lary, Diana (1 April 2001). "Drowned Earth: The Strategic Breaching of the Yellow River Dyke, 1938". War in History. 8 (2): 202, 205–206. doi:10.1177/096834450100800204.
  14. "Yellow River flood, 1938-47 | DisasterHistory.org". www.disasterhistory.org. Retrieved 2017-10-09.
  15. Taylor, Jay (2009). The Generalissimo: Chiang Kai-Shek and the Struggle for Modern China. Cambridge, Massachusetts: Belknap Press of Harvard University Press. pp. 154–155. ISBN 9780674033382.
  16. Muscolino, Micah S. (2014). The Ecology of War in China: Henan Province, the Yellow River, and Beyond, 1938–1950, pp. 29-31. Cambridge University Press.
  17. Lary, Diana (1 April 2001). "Drowned Earth: The Strategic Breaching of the Yellow River Dyke, 1938". War in History. 8 (2): 191–207. doi:10.1177/096834450100800204. S2CID 159547176. 1082337951.
  18. 韓啟桐; 南鐘萬 (1948). 黃泛區的損害與善後救濟. Shanghai: 行政院善後救濟總署編纂委員會. pp. 21–23 – via Taiwan eBook Database, National Central Library. Also cited in 徐有礼; 朱兰兰 (2005). "略论花园口决堤与泛区生态环境的恶化" (PDF). 抗日战争研究.
  19. Lary, Diana (1 April 2001). "Drowned Earth: The Strategic Breaching of the Yellow River Dyke, 1938". War in History. 8 (2): 202, 205–206. doi:10.1177/096834450100800204.
  20. 于瀚, ed. (2013-03-11). "蒋介石花园口决堤淹死多少百姓？". 腾讯历史·今日话题. Archived from the original on 2013-12-02.
  21. Marquis, Christopher; Qiao, Kunyuan (2022). Mao and Markets: The Communist Roots of Chinese Enterprise. New Haven: Yale University Press. doi:10.2307/j.ctv3006z6k. ISBN 978-0-300-26883-6. JSTOR j.ctv3006z6k. OCLC 1348572572. S2CID 253067190.
  22. Institution of Water Engineers (1947). Water and Water Engineering. Fuel & Metallurgical Journals Limited. p. 312.
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