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高考地理二轮复习课件 气候类型的非地带性分布

  • 2026-04-23 23:10:34
高考地理二轮复习课件 气候类型的非地带性分布
一、地带性规律(一般)VS 非地带性现象(特殊)
1.影响气候的主要因素

太阳辐射(纬度位置) 、 海陆位置 、   大气环流

地形、洋流

2.世界气候类型分布模式(北半球)-地带性规律

典例:索契——世界纬度最高的亚热带气候区   (引入非地带性

     例1.  阅读图文资料,完成下列要求。

      茶树为常绿阔叶树,主要分布在气候湿热的热带、亚热带的山地、丘陵地区,而位于44°N附近的俄罗斯索契栽培茶树有数百年历史,下图示意索契的位置。

分析索契适宜茶树生长的水热条件的成因。

答案:

背山面海,位于西风带(盛行西南风),黑海蒸发的水汽随盛行风遇山地抬升,云多雨丰(多地形雨)。

纬度约44°N,夏季气温高。冬季山脉阻挡北面冷空气侵袭,且黑海海面水温较高(对气温调节作用较强),气温较高。

3.非地带性

      由于海陆分布、地形起伏、洋流等因素的影响,气候类型的分布不具备地带性规律,或者使气候类型的分异规律表现的很不完整或很不鲜明。

二、气候类型非地带性分布的表现

表现一:缺失

1.南半球缺失亚寒带针叶林气候和苔原气候:

原因:

海陆分布:这两种气候类型分布区在南半球为海洋

例2.下图为“某种气候类型分布示意图”,读图完成问题。

      该种气候的分布地区中,①地区的最高纬度分布较低(低于35°S),其主要的影响因素是  (  )

A.海陆分布          B.纬度位置         C.地形        D.洋流

答案:A

延伸:美国旧金山是地中海气候,纬度在38°N.

表现二:改变

2、非地带性分布的热带草原气候

东非赤道穿过地区(东非高原)

原因:地形影响:海拔高,气温低;对流运动弱,降水相对减少。

3、非地带性分布的热带雨林气候

马达加斯加岛东部,澳大利亚东北部,巴西东南部,中美洲东北部

原因:来自海洋的信风,携带大量水汽;

         受地形抬升作用,形成地形雨,降水多;

         沿岸暖流增温增湿。

4、非地带性分布的热带沙漠气候

南美洲西海岸热带沙漠气候延伸至赤道附近

 原因:离岸风东南信风;受沿岸寒流影响,降温减湿

5、非地带性分布的温带大陆性气候

南美洲巴塔哥尼亚高原

原因:位于安第斯山脉东侧,盛行西风背风坡,气流下沉,降水少

例3.读图,完成(1)~(2)题。

(1)图示岛屿的山脉主体走向大致为 (    )

A.南北     B.东北—西南       C.东西     D.西北—东南

(2)根据图示信息可以判断出     (    )

A.甲、乙两河流汛期均出现在夏季   B.平均流速甲河较乙河快

C.流量甲河较乙河大                      D.含沙量甲河较乙河大

答案:(1)C      (2)C

气候类型的判断拾遗

表现三:约束

6、南北美洲西部沿海气候带呈东西狭窄分布:

原因:受地形阻挡,难以向东拓展

表现四:块状

荒漠中的绿洲,比如我国新疆的天山山麓的绿洲。

原因:受高山地形和土壤、水分等非地带性因素的影响而形成的。

总结:

非地带性分布的表现及成因

缺失:受海陆分布的影响

改变:受地形因素的影响

约束:分布范围受到约束。

块状:位于热带荒漠和温带荒漠中的绿洲

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  1. CONNECT:[ UseTime:0.000457s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000668s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003171s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.005612s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000697s ]
  6. SELECT * FROM `set` [ RunTime:0.005673s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000733s ]
  8. SELECT * FROM `article` WHERE `id` = 480513 LIMIT 1 [ RunTime:0.005017s ]
  9. UPDATE `article` SET `lasttime` = 1777457998 WHERE `id` = 480513 [ RunTime:0.020900s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.006644s ]
  11. SELECT * FROM `article` WHERE `id` < 480513 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000530s ]
  12. SELECT * FROM `article` WHERE `id` > 480513 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.013917s ]
  13. SELECT * FROM `article` WHERE `id` < 480513 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.030611s ]
  14. SELECT * FROM `article` WHERE `id` < 480513 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.009075s ]
  15. SELECT * FROM `article` WHERE `id` < 480513 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.020494s ]
0.208467s