地理漫步·世界地理英语30篇（4）

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青藏高原：大气泵与高海拔水文分界

Rising over four thousand meters, this plateau acts as a thermal engine driving monsoon circulation.
Its elevated surface heats air faster than surrounding lowlands, creating seasonal pressure gradients.
Glaciers on its northern slopes feed the Yangtze, Yellow, and Mekong rivers through meltwater channels.
The plateau’s southern edge marks where moisture-laden Indian monsoon winds first rise and cool.
Permafrost distribution follows latitude and elevation, forming discontinuous zones that affect groundwater storage.
Lake basins like Nam Co occupy tectonic depressions where evaporation exceeds precipitation year-round.
Wind erosion sculpts aeolian landforms on arid western margins far from major river systems.
Seasonal snow cover varies spatially, influencing spring runoff timing across three major Asian river basins.
High-elevation wetlands store carbon in peat despite thin soils and cold temperatures.
River networks here show dendritic patterns constrained by regional fault lines and bedrock resistance.