Earthworm populations in soils disturbed by trampling
Heavy trampling by livestock in pasture entrances considerably reduced earthworm density and biomass. All species showed a downward shift in vertical distribution. A laboratory experiment demonstrated the great effectiveness of A. Conga
in ameliorating the effects of soil compaction. Earthworm population changes on trampling are likely to facilitate recovery of soil drainage once trampling ceases. (l'A.).
Trampling of microphytic crusts on calcareous soils, and its impact on erosion under rain-impacted flow
This paper examines the effect of simulated trampling on erosion from intact microphytic crust-dominated monoliths subjected to rain-impacted water flow. Using an artificial sheep hoof, 5 intensities of trampling were imposed on the soil surface
in order to examine : 1) the relationship between trampling disturbance and erosion from intact microphytic crusted soil; 2) the influence of trampling on the size distribution of eroded particles, and 3) the influence of trampling on soil micromorphology
Trampling damage to vegetation and soil cover within the Burren National Park, Mullach Mor, Co. Clare
Between 1986 and 1992, surveillance of three selected paths revealed a pattern of increasing damage to vegetation and soil cover. An attempt was made to quantify the extent of trampling damage, and to examine possible causes of observed spatial
Fine gravel controls hydrologic and erodibility responses to trampling disturbance for coarse-textured soils with weak cyanobacterial crusts
The AA. compared short-term effects of lug-soled boot trampling disturbance on water infiltration and soil erodibility on coarse-textured soils covered by a mixture of fine gravel and coarse sand over weak cyanobacterially-dominated biological soil
crusts. Trampling significantly reduced final infiltration rate and total infiltration and increased sediment generation from small rainfall simulation plots. Trampling had no effect on time to runoff or time to peak runoff. Trampling had similar effects
Field experiments on the transport of rock fragments by animal trampling on scree slopes
This paper reports the results of a series of experiments on the downslope movement of rock fragments due to trampling by sheep and goats on a scree slope near Aglasun, Turkey. The experimental results are used to obtain a first estimate
Wind erodibility of soils at Fort Irwin, California (Mojave Desert), USA, before and after trampling disturbance : implications for land management
Recently disturbed and control (less recently disturbed) soils in the Mojave Desert were compared for their vulnerability to wind erosion, using a wind tunnel, before and after being experimentally trampled. The results indicate
In the northern Negev region of Israel, the AA. examined the soil properties associated with flock trampling routes and rock fragment clusters, as well as those associated with the remainder of the intershrub area and shrub patches. Moisture content
the creation of a network of trampling routes on the hillsides. It is important to recognize trampling routes as a separate midrohabitat within the intershrub area. The soil properties of the shrub patches and the trampling routes lie at opposite ends
The study area is located in upper Valtellina (Central Italian Alps). The aim of this study is to estimate the erosion rate along the 2 trails and to study the effects of walking and foot trampling on tree growth, by using dendrogeomorphological
The AA. investigated whether grazing leads to deterioration of soil physical properties that subsequently increases topsoil erodibility. They sampled 3 sites (an ungrazed grassland, a continuously grazed grassland, and a track trampled by stock
erodibility. Grazing and trampling by livestock therefore appear to cause deterioration of soil physical properties and to increase soil erodibility.
Two sites (Asciano and Castelfalfi) were selected in Tuscany (central-west Italy) in order to study the effects of wild boar activities (rooting and trampling) at 2 different densities and on the organic matter quality and functionality in soil
experiencing centre-periphery change. The resultant ecological consequences culminate in the destruction of the vegetation cover in the sensitive periglacial zone by trampling from overstocked pastures, in the risk of soil erosion in semi-arid Tibet
clay loam soils were measured. A linear recovery model based on compaction measurements gathered at the townsites indicated that complete recovery times ranged from 50 to 145 years for soils compacted principally by human trampling, and from 79 to 227
and rock fragment displacement by gravity and livestock trampling. Through targeted interventions, rural society is now well on the way to control and reverse the degradation processes.
colours, were waving in the wind on the second-highest but perhaps one of the toughest-to-climb mountains on Earth. Achille Compagnoni was trampling snow on the top of K2 in the company of Lino Lacedelli and thanks to the heroism of Walter Bonatti
and agricultural intensification. Additional stresses on the soil system have been imposed by factors such as acid deposition, applications of sewage sludge to the land and increased human trampling in sensitive mountain environments. This paper will examine
Andalusia ; Arid area ; Biogeomorphology ; Experiment plot ; Goat ; Mediterranean States ; Quantitative analysis ; Rock fragment ; Semi-arid area ; Sheep ; Slope gradient ; Soil degradation ; Soil erosion ; Spain ; Trampling
In this study, the process dynamics of material disaggregation and translocation directly caused by trampling animals was quantified by means of experimental methods on test plots. Gerlach troughs were installed in order to quantify material