在潮湿地区，山脊沿着耐蚀的石带发育。
Ridges occur in humid regions along belts of resistant rocks.
大气低层的水汽量在干燥地区（量）甚微，而在潮湿地区按体积占4%左右。
Water vapor in the lower atmosphere can vary in amount from a mere trace in arid regions to about 4% by volume in moist areas.
在冬季，潮湿地区可以提供一种优良的、蒲草和芦苇形式的绝缘材料。
During the winter, wet areas may provide an excellent insulating material in the form of cattail fluff and reeds.
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