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甘肃省所属兰州、白银、天水、定西、平凉、庆阳、陇南七地市位于东经102°43′～108°40′,北纬32°39′～37°11′之间,地处长江、黄河上游的陇中黄土高原及秦岭山地,深居内陆,地形复杂,山势陡峻,年平均气温由6～9℃(兰州、白银)递增到陇南南部的14℃左右,温水性鱼类(水温大于14℃)的生长期为150～160天(中部、东部地区)递增至210～240天(陇南)。80年代初,随着农村产业结构的调整,利用河川、谷地开挖精养塘,建立起了商品鱼基地。然而,甘肃省养鱼历史短,技
The seven cities of Lanzhou, Baiyin, Tianshui, Dingxi, Pingliang, Qingyang and Longnan, belonging to Gansu Province, are located between 102 ° 43 ’and 108 ° 40’ east longitude and between 32 ° 39 ’and 37 ° 11’ north latitude, The upper reaches of the Loess Plateau and the Qinling Mountains in the upper reaches of the Yellow River inland, complex terrain, steep mountains, the annual average temperature from 6 ~ 9 ℃ (Lanzhou, silver) increased to about 14 ℃ in southern Longnan, warm water fish (water temperature More than 14 ℃) of the growing period of 150 to 160 days (central and eastern regions) increased to 210 to 240 days (Longnan). In the early 1980s, with the adjustment of rural industrial structure, the use of rivers, valleys digging intensive ponds, the establishment of a commercial fish base. However, Gansu Province has a short history of fish farming