洪脉稻作 · FLOOD-PULSE RICE
The River That Breathes — Southeast Asia · Mekong Basin
湄公河近 5,000 公里长，下湄公河流域支撑约 6,500 万人口。季节性涨落不是故障，而是稻田、渔业与水上聚落背后的脉搏。
在柬埔寨洞里萨湖，高水位甚至能让水流倒灌入湖。地图讲的是一个朴素道理：河流文明不只依靠河岸，也可以围绕“涨落”来组织。
The Mekong runs nearly 5,000 km and the Lower Mekong basin supports about 65 million people. Its seasonal rise is not a glitch; it is the pulse behind rice fields, fisheries and floating settlements.
At Cambodia’s Tonle Sap, high water can even reverse the flow toward the lake. The map choreographs a simple lesson: a river civilization can be built around motion, not just banks.