读图1“我国甲、乙两地气温曲线和降水量柱状图”和图2“我国季风区与非季风区图”,完成下列各题.(1)

2025-03-31 10:20:28
推荐回答(1个)
回答1:

(1)从图中可以看出,甲、乙两地中,年降水总量比较多的是乙地,雨季较短的是甲地.
(2)甲地1月气温低于0°C,所以冬季河流会结冰.而乙地冬季温和,夏季炎热,热量较充足.
(3)从图中可以看出,一年中,甲、乙两地降水集中在夏季,冬季降水最少.
(4)中国季风气候区面积广大.习惯上以大兴安岭-阴山山脉-贺兰山-巴颜喀拉山脉-冈底斯山脉以东一线为界,把中国划分为季风区和非季风区.
(5)北京位于秦岭、淮河以北的东部季风区,是温带季风气候,如图甲,夏季高温多雨,冬季寒冷干燥.上海位于秦岭、淮河以南的东部季风区,是典型的亚热带季风气候,夏季高温多雨,冬季温和湿润.
(6)西北地区白天日照充足,热量丰富,有利于瓜果着色,到了夜晚,骤然降温,昼夜温差大,大气和土壤中的热量迅速散失,植物进入“休眠”状态,自身呼吸作用大幅度减弱,白天借助于光合作用所形成的养分得以有效积累,从而使瓜果的质量大为提高.
(7)中国季风区河流以外流河为主,河流水文特征深受季风气候影响.夏季风带来的雨水成为河流的主要水源,随着夏季风的加强,雨带由南向北推移,河流水量骤增,水位上涨,形成汛期.与外流河相比,中国内流河主要分布于非季风区.这些河流的河水主要来自高山冰雪融水.夏季,随着冰雪融化,河流水量增多;夏季过后,河流水量逐渐减少,甚至断流.
(8)四川盆地位于秦岭、淮河以南的东部季风区,这里气候温暖,降水较多,河网稠密,土壤肥沃,农业发达.
(9)甲乙两地夏季高温多雨,雨热同期,说明都位于季风区.
故答案为:(1)乙;甲;(2)甲;乙;(3)夏;冬;(4)大兴安;贺兰;冈底斯;(5)甲;乙;(6)昼夜温差大;日照充足;(7)大气降水;高山冰雪融水;(8)四川;(9)季风.

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