Facilities for continuous monitoring of soil erosion in warm and cool seasons in Prince Edward Island, Canada. I. Watersheds
Agropedology ; Canada ; Methodology ; Prince Edward Island ; Soil erosion ; Soil properties ; Watershed
of erosion plots and meteorologic instrumentation at each of the three sub-watersheds. The design and calibration of the watershed monitoring installations are described, with special emphasis on cool-period reliability of measuring and recording.
Measurements of suspended and dissolved loads in this watershed suggest that deforestation and agricultural activities increase the rates of erosion by a factor of five to ten. - (DWG)
Cyclone ; Gully erosion ; Land use ; Landslide ; New Zealand ; North Island ; Rainstorm ; Sediment budget ; Soil erosion ; Watershed
A short-term sediment budget was constructed to assess the erosion response of a soft-rock hill country watershed to an intense rainstorm event. The watershed is located in a landslide-prone area on the east coast of the North Island, New Zealand
. During March 1988, 753 mm of rain was recorded over a four-day period with 320 mm and 329 mm on successive days. Known as Cyclone Bola, this was the largest rainstorm event in the Tutira watershed in the 93-year rainfall record. The budget quantifies
the total sediment generated during the storm, the relative contribution of erosion processes involved, the amount of sediment held in storage and the amount discharged into two lakes within the watershed.
for future research in the region close to the main European watershed. This paper includes the complex geomorphologial analysis, especially morphostructural analysis, the investigation of the features and genesis of georelief, the digital elevation model
Colorado ; Meltwater ; Mountain ; Rill wash ; Sediment budget ; Sediment transport ; Semi-arid area ; Snow ; Soil erosion ; United States ; Watershed
This paper develops a simple method of predicting sediment removal during snowmelt and flashfloods in Alkali Creek watershed, western Colorado. The method links successful runoff simulations to field-monitored sediment relationships to predict site
yield. The yield data are differenced to derive an index of scour and fill, from which it is possible to infer the patterns of erosion and deposition that the simulated events might produce across the watershed.
Arid area ; California ; Climatic variation ; Global change ; Precipitation ; Runoff ; Semi-arid area ; United States ; Watershed
watersheds in the north-central portion of the Mono Basin is employed to simulate existing hydroclimatic processes and the alteration of these processes in response to climate change.
This paper describes three sets of erosion plots, each set of which was installed adjacent to the gauging site of a watershed monitored for discharge and sediment. Each plot is equipped with instrumentation for instantaneously recording runoff rate
and for sampling sediment during an event to facilitate local verification of process-based models applied to the associated watersheds. Special emphasis has been placed on cool-period recording.
Channel geometry ; Extreme discharge ; Flood ; Fluvial processes ; Fluvial terrace ; Land use ; Meander ; Model ; United States of America ; Watershed ; Wisconsin
In this watershed, the conversion from natural vegetation to agriculture resulted in the development of incised meander belts along streams. These belts consist of alluvial terraces that confine flood flows to a relatively narrow portion
Agricultural practice ; Bank erosion ; Drainage ; Floodplain ; Glacial features ; Ontario ; Sediment budget ; Soil erosion ; United States of America ; Watershed
This paper investigates possible sources, storage sites, and delivery rates of sediment within the South Saugeen watershed in southern Ontario that has been partly modified by agricultural activity. The results demonstrate the importance