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(一)汉中蔗区是我国甘蔗分布的北缘,该区的甘蔗主要分布在汉中盆地沿汉江两岸的沙滩地带,以汉中县、南郑县、城固县、勉县、洋县等种植较多。汉中蔗区北依秦岭,冬季北方的干冷空气不易侵入,夏季南方的湿热空气则易深入,因而形成温暖湿润的气候条件。该蔗区位于北纬32°59′～33°13′,东经10644′～107°43′,海拔约500米。年均温14.5℃,1月均温2.3℃,7月均温26℃,极端最低气温-8℃,极端最高气温
(1) Hanzhong sugarcane is the northern margin of the distribution of sugarcane in China. The sugarcane in this area is mainly distributed in the Hanzhong Basin along the beach along the banks of the Han River. The planting of Hanzhong, Nanzheng, Chenggu, Mian and Yangxian many. Hanzhong sugarcane area north of Qinling, winter cold and dry air in the north is not easy to invade the summer hot and humid air is easy to deep, thus forming a warm and humid climatic conditions. The sugar cane is located at latitude 32 ° 59 ’~ 33 ° 13’ north and longitude 10644 ’~ 107 ° 43’ east with an altitude of about 500 meters. Average annual temperature of 14.5 ℃, January average temperature of 2.3 ℃, July average temperature of 26 ℃, extreme minimum temperature of -8 ℃, extreme maximum temperature