【題目】比較西北地區(qū)和青藏地區(qū),完成下列表格。

西北地區(qū)

青藏地區(qū)

主要自然特征

___________

高寒

主要地形

高原和盆地為主

___________為主

河流

河流稀少,多季節(jié)性河流,有我國(guó)最長(zhǎng)的內(nèi)流河③___________

河流眾多,是我國(guó)許多河流的發(fā)源地

種植業(yè)

灌溉農(nóng)業(yè)

___________

制約農(nóng)業(yè)發(fā)展的主要因素

___________不足

___________不足

主要的氣候類型

_______________

_______________

【答案】干旱 高原 塔里木河 河谷農(nóng)業(yè) 淡水(水資源) 熱量 溫帶大陸性氣候 高山高原氣候

【解析】

我國(guó)幅員遼闊,自然環(huán)境復(fù)雜多樣,形成了各具特色的地理區(qū)域.在中國(guó)地圖上,把秦嶺-淮河線、400毫米年等降水量線和青藏高原邊緣線這三條重要的地理界線結(jié)合起來(lái),并根據(jù)實(shí)際情況作一定的調(diào)整,就把我國(guó)劃分為四大地理區(qū)域,即北方地區(qū)、南方地區(qū)、西北地區(qū)和青藏地區(qū)。

西北地區(qū)主要自然特征干旱,主要地形是高原和盆地為主,河流稀少,多季節(jié)性河流,有我國(guó)最長(zhǎng)的內(nèi)流河是塔里木河,屬于灌溉農(nóng)業(yè)制約農(nóng)業(yè)發(fā)展的主要因素淡水不足,主要的氣候類型溫帶大陸性氣候;

青藏地區(qū)主要自然特征高寒,主要地形高原為主,河流眾多,是我國(guó)許多河流的發(fā)源地,種植業(yè)為河谷農(nóng)業(yè),制約農(nóng)業(yè)發(fā)展的主要因素是熱量不足,主要的氣候類型是高山高原氣候。

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