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兰州市高寒阴湿地区农业发展的思路与对策王生明王元桂周亚萍兰州市高寒阴湿地区在海拔２１８０～３６００米之间，共有旱地５４万亩，约占全市耕地面积的２０％，年平均气温６℃，年降雨量２５０～６００毫米，无霜期６０～１２７天；全市属高寒阴湿地区的乡有１３个，２...
Lanzhou City, alpine and humid areas of agricultural development ideas and Countermeasures Wang Shengming Wang Yuanui Zhou Yaping Lanzhou cold and wet areas in the elevation of 2180 ~ 3600 meters, a total of 540000 acres of dry land, accounting for about 20% of the city’s arable land, the annual average Temperature 6 ℃, the annual rainfall of 250 ~ 600 mm, frost-free period of 60 to 127 days; the city belongs to the alpine and humid areas of the township 13, 2 ...