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塞罕坝月平均风速多在 4 0 8级以上 ,3、 4、 5月形成第 1个高峰 ,9、 10、 11月形成第2个高峰。 1～ 9月风速增加时间在 9∶0 0～ 13∶0 0时之间 ,且多集中于 11∶0 0～ 13∶0 0时 ,10～ 11月增速时间多集中在 9∶0 0～ 11∶0 0时 ,3～ 9月风速减弱时间多集中在 17∶0 0～ 18∶0 0时 ,其余月份集中在 15∶0 0～ 16∶0 0时 ;风力增速一般从 4、 5级开始 ,增级 1～ 3级 ,大风连续 2～ 3d ;6～ 8级风年平均 6 8d ,频率 18 7% ,4、 5级风分别年均 116d ,频率是 6～ 8级风的 1 70倍。依据风天规律 ,对护林防火工作和林业生产提出 5项建议
The average monthly wind speed of Saihanba is above 40%. The first peak is formed in March, April and May, and the second peak is formed in September, October and November. From January to September, the time for wind speed increase was between 9:00 and 13:00 and mostly concentrated between 11:00 and 13:00. The growth rate from October to November mostly concentrated at 9:0 0 ~ 11:0 0, the wind speed weakened from March to September mostly concentrated at 17: 0 0 ~ 18: 0 0 and the rest of the month concentrated at 15: 0 ~ 16: 0; the wind speed increased from 4, Grade 5 begins with an increase of 1 to 3 levels with strong winds lasting 2 to 3 days. The annual average winds of 6 to 8 winds have an average of 68 days with a frequency of 18.7%. The annual average winds of 4-5 winds have reached 116 days with frequencies of 6 to 8 winds 1 70 times. According to the rule of wind and solar energy, put forward five suggestions on forest fire prevention work and forestry production