sub humid soil [土壤] 亚湿土
humid-soil 潮土
humid soil layer 湿沙层
underground humid soil 地下含湿岩土
humid-plastic cement soil 湿塑性水泥土的
on soil of humid area 在潮湿地区的土壤上
red soil humid acid 红壤腐殖酸
In order to absorb water, the speed of root elongation in plants must surpass the speed of the humid soil layer moving down.
为了能够有效地从沙层中获得水分，植物的根系的伸长的速度必须大于湿沙层下降的速度。
Darker soils are often rich in iron and aluminum oxides, and are typical of highly weathered soil that forms in hot, humid climates.
而深色的土地通常是富含铁和氧化铝，是在湿热气候下形成的典型的高度风化的土壤。
The purplish soil of the warm and humid Sichuan Basin is green with crops in all four seasons, including paddy rice, rapeseed and sugarcane.
四川盆地多为紫色土壤，气候暖湿，农作物可四季生长，盛产水稻、油菜和甘蔗。
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