平píng原yuán世shì界jiè

平píng原yuán是shì指zhǐ陆lù地dì上shang海hǎi拔bá高gāo度dù较jiào低dī、地dì表biǎo起qǐ伏fú平píng缓huǎn的de广guǎng大dà平píng地dì。它tā主zhǔ要yào分fēn布bù在zài大dà河hé两liǎng岸àn和hé海hǎi滨bīn地dì区qū，这zhè里lǐ地dì势shì平píng坦tǎn、人rén口kǒu密mì集jí、经jīng济jì发fā达dá，世shì界jiè上shang大dà部bù分fen人rén口kǒu都dōu生shēng活huó在zài平píng原yuán上shang。

平píng原yuán的de形xíng成chéng

世shì界jiè上shàng几jī乎hū所suǒ有yǒu的de大dà平píng原yuán，都dōu是shì河hé流liú冲chōng击jī形xíng成chéng的de。河hé流liú的de力lì量liàng非fēi常cháng巨jù大dà，它tā一yī面miàn拓tuò宽kuān自zì己jǐ的de河hé床chuáng，一yī面miàn把bǎ大dà量liàng泥ní沙shā堆duī积jī在zài河hé流liú两liǎng岸àn，逐zhú渐jiàn就jiù形xíng成chéng了le广guǎng袤mào的de平píng原yuán。

小知识

我wǒ国guó的de成chéng都dōu平píng原yuán自zì古gǔ就jiù是shì中zhōng国guó最zuì富fù饶ráo的de农nóng业yè区qū之zhī一yī。

世shì界jiè十shí大dà平píng原yuán

世shì界jiè上shang的de十shí大dà平píng原yuán按àn面miàn积jī大dà小xiǎo依yī次cì是shì亚yà马mǎ孙sūn平píng原yuán、东dōng欧ōu平píng原yuán（俄é罗luó斯sī平píng原yuán）、西xī西xī伯bó利lì亚yà平píng原yuán、拉lā普pǔ拉lā塔tǎ平píng原yuán、北běi美měi大dà平píng原yuán、图tú兰lán平píng原yuán、恒héng河hé平píng原yuán、印yìn度dù河hé平píng原yuán、中zhōng欧ōu平píng原yuán、松sōng辽liáo平píng原yuán。

平píng原yuán

平píng原yuán的de特tè点diǎn

世shì界jiè平píng原yuán总zǒng面miàn积jī约yuē占zhàn全quán球qiú陆lù地dì总zǒng面miàn积jī的de1/4，平píng原yuán不bù但dàn广guǎng大dà，而ér且qiě土tǔ地dì肥féi沃wò，水shuǐ网wǎng密mì布bù，交jiāo通tōng发fā达dá，是shì经jīng济jì文wén化huà发fā展zhǎn较jiào早zǎo较jiào快kuài的de地dì方fāng。我wǒ国guó的de长cháng江jiāng中zhōng下xià游yóu平píng原yuán就jiù有yǒu“鱼yú米mǐ之zhī乡xiāng”的de美měi称chēng。

亚yà马mǎ孙sūn平píng原yuán

南nán美měi洲zhōu的de亚yà马mǎ孙sūn平píng原yuán是shì世shì界jiè上shang最zuì大dà的de平píng原yuán，占zhàn整zhěng个gè巴bā西xī国guó土tǔ面miàn积jī的de1/3。这zhè里lǐ地dì势shì低dī平píng坦tǎn荡dàng，河hé流liú蜿wān蜒yán流liú淌tǎng，湖hú泊pō沼zhǎo泽zé众zhòng多duō，蕴yùn藏cáng着zhe世shì界jiè最zuì丰fēng富fù多duō样yàng的de生shēng物wù资zī源yuán。

在zài亚yà美měi孙sūn平píng原yuán上shang，流liú淌tǎng着zhe世shì界jiè上shang水shuǐ量liàng最zuì大dà的de河hé流liú——亚yà马mǎ孙sūn河hé

三sān江jiāng平píng原yuán