“一场秋雨一场寒”,每当秋天来临的时候,一股股的冷空气从西伯利亚南下进入我国大部分地区,当它和南方正在逐渐衰退的暖湿空气相遇后,便形成了雨。一次次冷空气南下,常常造成一次次的降雨,并使当地的温度一次次降低。常常形成秋雨连绵,下个不停。加上寒露霜降作用,形成北方特有的“霜叶红于二月花”,层林尽染的景观。 枫树[attachment=1980919][attachment=1980920][attachment=1980921][attachment=1980922][attachment=1980923][attachment=1980924][attachment=1980925][attachment=1980926][attachment=1980927][attachment=1980928][attachment=1980929][attachment=1980930][attachment=1980931][attachment=1980932][attachment=1980933][attachment=1980934] 椿叶[attachment=1980935][attachment=1980936][attachment=1980937][attachment=1980938][attachment=1980939][attachment=1980940] 海棠[attachment=1980941][attachment=1980942][attachment=1980943][attachment=1980944][attachment=1980945][attachment=1980946][attachment=1980947][attachment=1980948][attachment=1980949][attachment=1980950][attachment=1980951][attachment=1980952][attachment=1980953][attachment=1980954] [attachment=1980962]
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