资讯

Modelling soil carbon and nitrogen cycles during land use change. A review. Agron Sustain Dev 31, 251–274 (2011) doi:Doi 10.1051/Agro/2010007. Berhe, A. A. & Kleber, M. Erosion, deposition ...
The dendritic pattern of removal and deposition by water erosion is also distinctly different from soil movement by excavation equipment (Figure 7). Olson et al. (1994) concluded that adding ...
Students should consider how each feature was formed, by erosion or deposition, by water or another factor. While watching the clip, students could note some of the key features or processes ...