论文部分内容阅读
自然降雨的分离作用伴随着沉积物会产生沉积作用,而且沉积运动特性优于原非侵蚀土壤.在连续降雨条件下,这个特性随时间而变化,表明最初土壤细粒损失伴有土壤表层粗糙沉积层的发展和沉积浓度的降低.当陆地运动的夹带再夹带现象是主要的侵蚀机制时,其沉积物的沉积速度特性类似于非侵蚀土壤.由于上述沉淀形式的变化会产生养分加富现象,因为通常养分与每粒土壤体积不是同样增加或减少的关系—即土壤按沉积速度快慢划分.养分加富现象的另一个原因是在侵蚀过程中沉积物养分浓度产生了变化.分析的方法是综合考虑这些原因对加富率的影响,也可以理解为随沉积物运移(或其它化学吸附)的养分.本文阐明了全氮加富率是如何随侵蚀过程及该过程的历时变化和植物茎或叶产生的表层接触覆盖而变化的.
The detachment of natural rainfall is accompanied by deposition of sediments and the sedimentation kinematic characteristics are better than those of the original non-erosive soil.Under continuous rainfall conditions, this characteristic changes with time, indicating that the initial loss of soil particles accompanied by rough deposition of soil surface Layer development and deposition concentration reduction.When the entrainment and re-entrainment of land movement is the main erosion mechanism, the sediment deposition rate characteristics are similar to those of non-erosion soil.Because of the above-mentioned precipitation form changes will produce nutrient enrichment phenomenon, Because usually nutrients and the volume of each soil is not the same increase or decrease the relationship - that is, according to the sediment deposition rate of soil faster and slower.Another reason for nutrient enrichment is the sediment nutrient concentration in the erosion process has changed.Analysis method is integrated Considering the influence of these factors on the rate of enrichment, it can also be understood as the nutrient transported along with sediments (or other chemisorptions) .This paper illustrates how the rate of total nitrogen enrichment varies with the erosion process and the duration of the process, Or the surface of the leaves produced by contact with the cover change.