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一、河北地区的高速公路地理特点河北地区在地理上位于北半球中纬度地带内陆地区,远离海洋,大多为大陆性中温带半干旱、干旱区,夏季处于东南季风末梢,冬季受蒙古高压控制,基本特点是冬寒长,夏热短,春暖快,秋凉早;整体干旱少雨日照充足,蒸发量大,风大沙多,主要受干旱和风沙危害最为严重。在干旱、寒冬、风沙等灾害性气候影响下,生态环境十分脆弱。
I. Geographical Features of Expressway in Hebei Province Hebei Province is geographically located in the inland region in the middle latitudes of the Northern Hemisphere. It is far away from the sea, mostly in the semi-arid and arid region of the continental temperate zone, with the southeastern monsoon in summer and the high pressure in Mongolia in winter, The basic characteristics are winter long winter, short summer heat, warm spring and early autumn and cool autumn; the whole arid and dry sunshine, evaporation, wind and more sand, mainly due to the most serious hazards of droughts and sandstorms. Under the influence of disastrous climate such as drought, winter, wind and sand, the ecological environment is very fragile.