摘要
利用开封市气象局酸雨观测站2008—2010年的酸雨观测资料,对开封市酸雨出现的频率及其pH值变化进行了分析.结果表明开封市出现酸雨的月、季变化比较明显:酸雨出现频率最多的是9月份,出现最少的是2月份;秋季出现酸雨的频率最大,其次是夏季、春季、而冬季的频率最少.开封市酸雨pH值强度的月、季变化均呈现较为明显的"峰谷"波动变化:春季和秋季的酸雨强度最大,夏季次之,冬季最小.开封市出现pH值小于5.6以下的酸雨的次数最多,pH值小于4.5的较强酸雨次数略少一些,pH值小于4.0以下的强酸雨的次数最少.不容忽视的是:开封市强酸雨虽然出现次数较少,但是却呈现出明显的逐年增加的趋势,说明开封市酸雨危害的形势日趋严峻.由于酸雨是造成农田土壤酸化的主要原因,所以防治酸雨危害应加强城市污染物排放的管理,提高能源利用率.另外还要加强对农田环境的保护.
Making use of weather bureau acid rain observation post in Kaifeng prognosticates datat,he folio seals city acid rain the phenomenon appears of frequency and pH strength variety carried on analysis.Express as a result： Acid rain in Kaifeng appears the month,quarter of frequency to change a little bit obviously.Acid rains’ appearing the month of most frequency is a September,appearing the month of minimal frequency is a February.The autumn appears the frequency of acid rain biggests,econdly is a summers,pring but appear the frequency of acid rain in winter minimal.The month,quarter variety of acid rain pH strength in Kaifeng all presents more obvious ＂Mountain peak-valley＂motion to changet,he spring is as biggest as the acid rain strength of the autumni,n summer time,winter minimum.Kaifeng city appears the number of times of one less than 5.6 following acid rains most,pH less than 4.5 stronger acid rain number of timeses are slightly a little bit little,pH the number of times of less than 4.0 following common acid rains is the minimal.But allow of no what to neglect BE,although strong acid rain in Kaifeng appears number of times less,present to obviously and year by year increase of trend.This elucidation acid rain in Kaifeng endangers of the situation is gradually rigorous.The acid rain is the main reason that makes farmland soil sour to turns,o the prevention and cure acid rain harm should strengthen the management of pollutant emissions in the city and raise energy utilization.Moreover still need to strengthen the protection to the farmland environment.
出处
《河南科学》
2011年第8期930-932,共3页
Henan Science
