人为因素对西安市气候变化的影响  

Study on Effect of Human Activities on Climate Change of Xi'an City

作　　者：胡娜娜[1] 延军平[1] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710062

出　　处：《江西农业学报》2012年第6期179-183,共5页Acta Agriculturae Jiangxi

基　　金：国家自然科学基金项目"秦岭南北全球变化适应度评价及可持续发展模式选择"(40871052)

摘　　要：以西安市为例,利用市区及周边地区气象资料、市区人为活动指标数据,研究了城市发展对区域小气候变化的影响过程,并建立人为因素影响下的城市气候响应回归模型。结果表明:1993年以来西安市热岛强度主体呈倒"U"型变化,市区与周边地区降水差异正逐步缩小;人为活动与全年、四季及7月城市气候的关联性模拟曲线中倒"U"型为主要变化过程,反映西安市小气候与周边地区存在趋同现象;目前城市气候正处于良好的转型时期,未来环境保护措施需进一步巩固和加强。Taking example for Xi’an city,this paper studied the influences of urban development on the regional climate changes based on the meteorological data of Xi’an city and its surrounding areas as well as the data of urban human activity indexes,and established the regression models of urban climate affected by human activity.The results indicated that the heat island intensity generally presented an inverse-U-shaped variation trend in Xi’an city since 1993,and the precipitation difference between Xi’an city and its surrounding areas narrowed gradually.Meanwhile,the simulative curves of correlation between human activity and annual,seasonal and July urban climate mainly showed an inverse-U-shaped variation,suggesting that the microclimate in Xi’an city was gradually close to that in surrounding areas.So at present the climate of Xi’an city is in a good transition period,and the environmental protection measures needed to be consolidated and strengthened in the future.

关 键 词：城市气候 人为活动 相关模型 西安市 

分 类 号：P463.3[天文地球—大气科学及气象学]