Meanwhile, it can produce beneficial effect on maintaining the stability of the vegetation system by increasing the strength of correlated noise.
The simulations were used to study the stability of recently proposed vegetation indices (VIs) derived from adjacent narrowband spectral reflectance data across the visible (VIS) and near infrared (NIR) region of the electromagnetic spectrum.
Furthermore, the possible time dependence of the model parameters has been neglected, postulating relatively steady habitat characteristics, supported by the relative stability of the observed overall vegetation spatial patterns on the annual scale and by a rapid adjustment of species presence to climatic or external perturbations.
Therefore, in the first part of the numerical analyses, the effect of the spatial distribution of vegetation on the stability of a slope was investigated.
A lower planting density would lead to less lateral root reinforcement, and the contribution of vegetation to slope stability would probably be limited to the hydrological effects.
A survey was conducted on five slopes of differing slope integrity along the North South Expressway, Malaysia, to study the effects of vegetation on slope stability.
Although the UES framework presented here sets the basis for effectively evaluating the hydrological effect of vegetation on slope stability, it requires knowledge of the specific hydro-mechanical properties of plant-soil composites and this in itself needs further investigation.
For environmental planning, regional and municipality authorities should consider the important role of vegetation on slope stability, regulating the clear-cutting of trees, avoiding widespread deforestation, and implementing slope inspection and maintenance at local and basin scale.
It is likely that Pleistocene climatic stability might have allowed the persistence of vegetation similar to that observed today in the eastern Himalayas, especially at moderate or low altitudes [ 109].
Designated a Unesco World Heritage Site in 1986, the preservation of Great Zimbabwe – led by the National Museums and Monuments of Zimbabwe organisation – is now challenged by uncontrolled growth of vegetation, which threatens the stability of its dry stone walls.
