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珠江三角洲沙围田主要分布在中山、新会、斗门、顺德、南海、番禺、东莞和深圳等县(市),面积约600万亩,其中水稻面积约占80%,是我国商品粮基地之一。甘蔗面积约占10%,仅次于水稻,故以稻、蔗水旱轮作为其主要耕作制度。土壤为冲积性水稻土类型,土层深厚,且较肥沃,但土质粘重,通透性差;河涌交错,灌溉便利,但地势低洼,地下水位较高;雨季有内涝,旱季有咸潮,夏秋有台风侵袭。由于地处北回归线以南,属副热带季风气候,年平均气温22℃左右,全年最低温的
The sand-paddy fields in the Pearl River Delta are mainly distributed in counties (cities) of Zhongshan, Xinhui, Doumen, Shunde, Nanhai, Panyu, Dongguan and Shenzhen with an area of about 6 million mu, of which rice accounts for about 80% of the total, . About 10% of the area of sugarcane, second only to rice, so rice, sugar cane dry round as its main farming system. The soil is alluvial paddy soil type, with deep soil layers and more fertile soil. However, soil quality is poorly grained and permeable; creek intertwining and irrigation are convenient but the landform is low and the groundwater level is high; waterlogging occurs in the rainy season, salty tides in the dry season, Typhoon in summer and autumn. Because it is located south of the Tropic of Cancer, a subtropical monsoon climate, the annual average temperature of about 22 ℃, the year the lowest temperature