森林植被通过林冠层、枯落物层和根系土壤层的分层拦截吸收，起到突出的减洪减沙作用。
Through the roles of interception and absorption of the canopy layer, litter layer, and root and soil layer, the benefits of flood and sediment reduction of forest vegetation are prominent.
结果表明，影响该区森林天然更新的主要因素是海拔高度，其次是灌木层盖度和枯落物层的盖度。
The results show that the main factor that affects the natural regeneration is elevation, and the coverages of litter and brushwood were next.
草本层生物量在减少，枯落物的覆盖厚度在增大。
The biomass of herb layer is reducing and the thickness of litter is increasing.
草本层生物量在减少，枯落物的覆盖厚度在增大。
The biomass of herb layer is reducing and the thickness of litter is increasing.
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