梯田是我国西南地区最具特色的一种水系景观,巨大的海拔落差下竟能合理密布着丰沛的水系。那高处的梯田水是怎么上去的?
其实梯田的水跟地表的其他淡水资源一样都来自天上
梯田的形成离不开充沛的雨水,例如哈尼梯田年均降雨量在1397.6mm,广西龙脊梯田年均降雨量在1574. 5 mm。是我国南北分界标准400mm降水量的3-4倍。
“人往高处走,水往低处流”,梯田里的水就那么老实,不往下分流吗?
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靠天吃饭
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