By Jean-Marc d’Herbès, Christian Valentin (auth.), David J. Tongway, Christian Valentin, Josiane Seghieri (eds.)
Aerial images has printed the extraordinary, common phenomenon of repeating styles of crops in additional arid components of the area. interdependent levels, bands of dense and sparse plants, exchange within the panorama. This quantity synthesizes part a centurys amassed wisdom of either theoretical and utilized panorama services from quite a few those areas. It covers constitution, dynamics, and strategies of research, in addition to disturbances to those landscapes and suitable administration matters. Chapters are integrated to debate the position of modeling in answering questions about the origins and complicated approaches of banded landscapes. reviews of banded landscapes have yielded useful classes for realizing different semi-arid landscapes besides, resulting in an information base facilitating sustainable use and rehabilitation.
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Extra resources for Banded Vegetation Patterning in Arid and Semiarid Environments: Ecological Processes and Consequences for Management
The role of surface water redistribution in an area of patterned vegetation in south west Niger. J. Hydrol. 198: 1-29. E. 1999. Laboratory experiments on sequential scour/deposition and their application to the development of banded vegetation. Catena 37(1-2): 147-163. M. 1999. Testing the validity of upslope migration in banded vegetation from south-west Niger. Catena 37(1-2): 217-230. 1. 1982. The role of geomorphology in land evaluation for tropical agriculture. Z. Geomorphol. Suppl. 44: 21-32.
The source of water and sediments) and vegetation bands are runon areas or sink zones (Greenwood 1957; White 1970). Although Wickens and Collier (1971) stated that a loose sandy surface is necessary for high infiltration within a vegetation band and for the mulching action that occurs during the soil-drying phase, subsequent studies have not supported this (Hodge, quoted in Greenwood 1957; Mabbutt and Fanning 1987; Tongway and Ludwig 1990). In fact, Greene (1992) has demonstrated that it is the abundance of macropores (formed by the process of bioturbation) within soils of the bands that account for their high infiltration rates (chapter 4, this volume).
Different widths of transect have been combined (Montana, L6pez-Portillo, and Mauchamp 1990; Mauchamp et al. 1993). Couteron and colleagues (2000) used quadrats of two sizes along the same transect to measure the density of plants of widely different abundance. This practice enables economy in data collection effort. Lateral variation within vegetation bands can be studied with transects oriented on the contour, where heterogeneity is much less pronounced than with gradsects (Worral1960a; Boaler and Hodge 1964; Montana, L6pez-Portillo, and Mauchamp 1990).
Banded Vegetation Patterning in Arid and Semiarid Environments: Ecological Processes and Consequences for Management by Jean-Marc d’Herbès, Christian Valentin (auth.), David J. Tongway, Christian Valentin, Josiane Seghieri (eds.)