Simulating experiments were conducted to study the effects of sand and gravel mulches with different sizes on moisture evaporation from soil surface.

为研究不同粒径砂石覆盖对土壤蒸发过程的影响，进行模拟试验。

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Soil moisture of sand grassland, semi-mobile sand and disturbed inter-dune bottomland, had distinctive variability and larger spatial change range of variability, after rainfall.

沙质草场、半流动沙地和受干扰的丘间洼地降雨后的土壤含水量异质化程度及其相关变化范围非常明显。

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The development of population coverage and density was not only affected by sand burial, and more importantly, also affected by other factors, especially soil moisture.

盖度和密度的发育不仅受沙埋的影响，更主要是受沙埋深度影响下的其他资源特别是水分的限制。

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Fire ants, he explained, could build stable tunnels in sand or soil with almost no moisture to bind it together, so learning from them might enable designers to build and programme robots that solve these same engineering problems.

BBC: Ant studies to aid design of search and rescue robots