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南方露地中晚熟西瓜主要分布在湖北、湖南、安徽、四川和江西等省市,总体规模约20万hm2,主要产区包括湖北省江汉平原、鄂西北部分地区;湖南省洞庭湖平原地区、湘中丘陵地区;安徽省长江以南地区;江西省东北部和西南部;四川省四川盆地和周边丘陵区等。本区域以平原和低山丘陵为主,包括江汉平原、洞庭湖平原、淮北平原、四川盆地等,年降雨量一般在800~1 600 mm,年日照时数1 200~2 000 h。本区
The late-maturing watermelons in the southern open fields are mainly distributed in Hubei, Hunan, Anhui, Sichuan and Jiangxi provinces and cities with a total scale of about 200,000 hm2. The main producing areas include the Jianghan Plain in Hubei Province and some areas in the northwestern Hubei Province; the Dongting Lake Plain in Hunan Province In the hilly area; south of the Yangtze River in Anhui Province; northeast and southwest of Jiangxi Province; Sichuan Basin in Sichuan Province and the surrounding hilly areas. The area is dominated by plains and hilly areas, including Jianghan Plain, Dongting Lake Plain, Huaibei Plain and Sichuan Basin. The annual rainfall is generally 800-1 600 mm and annual sunshine duration is 1,200-2,000 h. This area