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(一) 赵光垦区位于黑龙江省北部,小兴安岭南麓。該区的气候特点是:气溫较低。年平均溫度在1℃左右,四月分平均气溫只有2.8℃,此时10厘米处的土溫也仅达2℃左右。雨量集中。年平均降雨量为600毫米左右,其中60％集中在七、八、九三个月內。降雨强度平均每小时为20毫米左右,最大可达49.9毫米。由于雨水多以暴雨落下,因而土壤易受水蝕。春风较大,平均风速每秒为5米,最大风速每秒可达20米。由于春
(A) Zhao Guang reclamation area is located in northern Heilongjiang Province, south of Xiaoxing’anling. The climatic features of the area are: low temperatures. The annual average temperature is about 1 ℃, the average temperature in April is only 2.8 ℃, at this time, the soil temperature at 10 cm is only about 2 ℃. Rainfall concentration. The average annual rainfall is about 600 millimeters, of which 60% concentrated in seven, eight, nine three months. The average rainfall intensity is about 20 millimeters per hour, with a maximum of 49.9 millimeters. Soil is susceptible to water erosion due to the heavy rains that rain falls. Spring breeze, the average wind speed of 5 meters per second, the maximum wind speed of up to 20 meters per second. Because of spring