In worm-free woodlands, leaves pile up in drifts on the forest floor. Trees and shrubs in wormless places depend on litter for food.
在没有蚯蚓的林地里，落叶成堆地堆积在森林的地表，树木和灌木丛依靠枯枝落叶层生长。
There were no detailed studies on litter and forest floor of Populus davidiana and Fraxinus mandshurica in this region.
针对帽儿山林区的水曲柳、山杨两种主要林分类型凋落物以及林下凋落物层进行细致的研究较少。
Red squirrels cut conifer cones from trees and bury them in plant litter on the forest floor.
红松鼠会将针叶树上的果实割下来然后埋在森林地面的落叶中。
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