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1 试验区自然概况齐齐哈尔位于黑龙江省西部高寒干旱地区,东经124°,北纬47°08′,属寒温带大陆性季风气候。冬季长而寒冷,夏季酷热,春秋季短,昼夜温差大,春季干旱多风。年平均温度3.2℃,最低气温-39.5℃,二月平均气温-19.4℃,7月平均气温22.7℃,年降水量370～550mm,其中降水80%以上集中于7～9月,年蒸发量1563mm,干燥度1～1.25,无霜期125d 左右,土壤为风沙土,PH值7.0左右。
1 Experimental Area Natural Overview Qiqihar is located in the arid and arid western western Heilongjiang Province, longitude 124 ° north latitude 47 ° 08 ’, a cold temperate continental monsoon climate. Long and cold in winter, hot in summer, spring and autumn short, large temperature difference between day and night, spring windy and dry. The annual average temperature is 3.2 ℃, the lowest temperature is -39.5 ℃, the average temperature in February is -19.4 ℃, the average temperature in July is 22.7 ℃, the annual precipitation is 370-550mm, of which 80% of precipitation is concentrated in the period of July-September and the annual evaporation is 1563mm , Dryness of 1 ~ 1.25, frost-free period of 125d or so, the soil is aeolian sandy soil, PH value of 7.0 or so.