土壤微粒沉积在自己的河床上，使河流变浅。
Particles of soil are deposited on the riverbed itself, making the river shallower.
他们声称免耕法储存了更多土壤中能够帮助土壤微粒凝聚在一起的碳。
They say no-till stores more soil carbon, which helps the soil particles stick together.
描述：2001年，马里，一群妇女遭遇了沙尘暴。沙尘暴造成土壤流失，特别是富含养分的最轻微粒的流失，降低了农业生产力。
Caption: Mali, 2001. Women caught in a sand storm. Dust storms cause soil loss - in particular the loss of the nutrient-rich lightest particles - reducing agricultural productivity.
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