Litter fall dynamics 枯落物凋落动力
litter-fall 凋落物量
litter-fall floor 枯落物层
litter fall collection 凋落叶收集
Because of the shading of wood leaf layers and litter fall, soil evaporation and the range of soil moisture contents changing were small under forest canopy.
受冠层覆盖及植被根系影响，随着树干距离的增加，土壤含水率呈减少趋势。
His strange habit makes sense when you consider that he's an environmental scientist who studies how to reduce litter, including things that fall off garbage trucks as they drive down the road.
他是一位研究如何减少垃圾的环境科学家，其中包括研究减少垃圾车行驶时掉下来的东西，当你考虑到这一点，自然就能明白他为什么会养成这种奇怪的习惯了。
Using large deployable surfaces to increase the drag on these objects so they fall to Earth rapidly is one possible solution to the space litter problem.
为了解决太空垃圾的问题，科学家们正考虑在这些垃圾的表面安装风帆，增加空气阻力，使它们更快地坠毁在地面上。
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