我国1600mm、800mm、400mm、200mm等降水量线穿过哪些省区

先答,后加悬赏
2025-03-19 03:14:16
推荐回答(2个)
回答(1):

1600mm 浙江  江西 广东 广西 

800mm  江苏 山东  河南 安徽 湖北 陕西  四川  西藏 

400mm  内蒙古  黑龙江 吉林 河北 山西  陕西  宁夏 甘肃 青海 西藏 

200mm内蒙古   宁夏 甘肃 青海 西藏 

在400毫米等降水线西北方向,从西伯利亚赶来的冷空气则不断南侵,在穿过西北内陆后顺势而下,与一路北进的太平洋及印度洋季风相汇,给第三阶梯大部分地区带来足够的降水。

从降水图上来看,我国多年平均400毫米等降水线起于大兴安岭西坡,穿过松花江流域,沿西辽河上游、燕山山脉斜穿黄河河套,经黄河、长江上游和西北诸河流域,直抵雅鲁藏布江河谷。

以这条线为界,其东南为受季风影响的半湿润地区,其西北为少受甚至不受季风影响的半干旱地区。

扩展资料:

气候界线

1、1月0℃等温线(也是亚热带与暖温带及高原气候区分界线):大体沿着青藏高原东南边缘,向东经过秦岭~淮河一线。

2、800毫米等降水量线(湿润区和半湿润区界线):沿着青藏高原东南边缘,向东经过秦岭~淮河一线。

3、400毫米等降水量线(半湿润区和半干旱区界线):从大兴安岭西坡经过张家口、兰州、拉萨附近,到喜马拉雅山脉东部。

4、200毫米等降水量线(半干旱区与干旱区界线):大致通过阴山、贺兰山、祁连山、巴颜喀拉山到冈底斯山一线。

参考资料:百度百科-800毫米等降水量线

百度百科-400毫米等降水量线

百度百科-200毫米等降水量线




回答(2):

1600mm 浙江  江西 广东 广西 

800mm  江苏 山东  河南 安徽 湖北 陕西  四川  西藏 

400mm  内蒙古  黑龙江 吉林 河北 山西  陕西  宁夏 甘肃 青海 西藏 

200mm内蒙古   宁夏 甘肃 青海 西藏 

200mm

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