Landslide Ecology by Lawrence R. Walker, Aaron B. Shiels

By Lawrence R. Walker, Aaron B. Shiels

Regardless of their frequently risky and unpredictable nature, landslides supply attention-grabbing templates for learning how soil organisms, crops and animals reply to such destruction. The rising box of landslide ecology is helping us comprehend those responses, assisting slope stabilisation and recovery and contributing to the growth made in geological methods to landslide prediction and mitigation. Summarising the turning out to be physique of literature at the ecological outcomes of landslides, this e-book offers a framework for the promoting of ecological instruments in predicting, stabilising, and restoring biodiversity to landslide scars at either neighborhood and panorama scales. It explores nutrient biking; soil improvement; and the way soil organisms disperse, colonise and have interaction in what's frequently an inhospitable setting. Recognising the position that those techniques play in delivering recommendations to the matter of risky slopes, the authors current ecological methods as valuable, most economical and resilient vitamins to landslide administration.

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1993). introduced animals (James, 1973). In Hawaii, large variations in the number of landslide per decade were attributed to rainfall patterns (Fig. , 1993). 3), although the landslides may be quite distinct in size and density, due to underlying environmental correlates. 8 landslides km−2 in drainage basins furthest from the path of the hurricane to 15 km−2 in drainage basins closest to the hurricane. Landslide densities also vary across a landscape, typically decreasing exponentially with distance from the earthquake epicenter (Fig.

The top of the slip face where it meets undisturbed substrate above is called the crown (Plate 6; see Fig. 1; Cruden & Varnes, 1996). The entire area that slides is sometimes called the source area (Brunsden, 1984) where most soils are removed and few nutrients remain. The zone of depletion is a related term that indicates where a landslide has lowered the original ground surface. The next discernible feature of most landslides is a chute (or zone of depletion) that is typically the narrowest part of the landslide and it is often clearly delineated from the stable slopes on either side by steep sheer zones (Plate 6).

2010b; see Chapter 5). A mountainous region with landslides is therefore a patchwork of habitats differing in soil, vegetation, and successional stage (Pickett & White, 1985). , 2003; Walker & Shiels, 2008). Local heterogeneity is provided both by the distinct change from landslide to undisturbed matrix along landslide edges and by the patchiness of 38 · Spatial patterns Fig. 8. Multiple earthquake-induced landslides in the Avoca River drainage of the Southern Alps, New Zealand. J. Bellingham.

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