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400毫米等降水量线

400毫米等降水量线又稱15英寸等雨线,由黄仁宇提出,指的是從中国东北到西南的一條降水量线,大致走向為從大兴安岭阴山贺兰山巴颜喀拉山一直延伸至冈底斯山。該降水量线将中国分割为两大区域,线的东南部是季風氣候,年平均降雨量在400毫米以上,產業以農業為主;線的西北部是温带大陆性气候,年平均降雨量在400毫米以下,產業以畜牧業為主。該降水量线也是农耕文明与游牧文明的分界线[1][2]

參考資料

  1. ^ 一条曾令人寝食难安的线!400毫米等降水线,对中国历史的影响. 学习时报. [2020-08-24]. (原始内容存档于2018-06-20). 
  2. ^ 《三天读懂系列 三天读懂五千年惊人巧合》. 诸葛文 北京:中国法制出版社 2015 第126页. 
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