CAJ | 학술논문

利用承德市和承德县1964-2007年逐月降水资料,采用趋势分析等统计分析方法,对比分析了承德市城区、城郊降水变化特征及其城市化的可能性影响.结果表明:近44 a来承德市城区、城郊年降水量均呈减少趋势;城市化进程加快时期城区、城郊年、季降水量的变化速率出现明显差异:城区年降水量呈增加趋势,而城郊则呈明显减少趋势;城区各季降水量相对城郊呈增加趋势:冬季、夏季城区、城郊降水量都是呈减少趋势,但是城区的减少速率要明显小于城郊;春季、秋季城区、城郊降水量均呈增加趋势,但城区增加趋势要明显大于城郊.城区年、月≥0.1 mm降水日数减少趋势小于城郊减少趋势;城区、城郊降水量的不同变化速率可能是由于城区空气污染较重和城区绿地和水面增多而导致空气湿度增加的影响.
이용승덕시화승덕현1964-2007년축월강수자료,채용추세분석등통계분석방법,대비분석료승덕시성구、성교강수변화특정급기성시화적가능성영향.결과표명:근44 a래승덕시성구、성교년강수량균정감소추세;성시화진정가쾌시기성구、성교년、계강수량적변화속솔출현명현차이:성구년강수량정증가추세,이성교칙정명현감소추세;성구각계강수량상대성교정증가추세:동계、하계성구、성교강수량도시정감소추세,단시성구적감소속솔요명현소우성교;춘계、추계성구、성교강수량균정증가추세,단성구증가추세요명현대우성교.성구년、월≥0.1 mm강수일수감소추세소우성교감소추세;성구、성교강수량적불동변화속솔가능시유우성구공기오염교중화성구록지화수면증다이도치공기습도증가적영향.
Based on the historical rainfall data from 1964 to 2007,the possible effect of urbanization on precipitation was analyzed by statistics method for Chengde City of China.The results show that both the precipitation in Chengde urban and rural areas have decreased in recent 44 years.But in the quicker development period of urbanization,the annual and quarterly precipitation in urban and rural areas shows significant differences,that is,the urban annual precipitation has increased year by year,but the rural one has reduced obviously.And the urban quarterly precipitation has increased,too.Both urban and rural precipitation increases in winter and summer,but the reducing rate is significantly less in urban areas than in rural areas.Both urban and rural precipitation increases in spring and autumn,but the increasing rate is significantly more in urban areas than in rural areas.The reducing rate of rainfall days is more in urban than in the rural areas.The main reasons causing different changing rates of urban and rural precipitation may be the heavy urban air pollution and the high air humidity made by the increasing areas of urban greenbelt and water surface.