Multi-year tracking of sediment sources in a small agricultural watershed using rare earth elements
Cultivated land ; Error ; Hydrology ; Ohio ; Sediment budget ; Soil erosion ; Trace-element ; Tracer ; United States of America ; Watershed
from the watershed; and to examine the potential sources of error related to using the REE technique for a multi-year of period to study sediment sources.
Seasonal controls on sediment delivery in a small coastal plain watershed, North Carolina, USA
Coastal plain ; Cultivated land ; North Carolina ; Seasonal variation ; Sediment budget ; Sediment transport ; Soil erosion ; Suspended load ; United States of America ; Watershed
in a small agricultural watershed in North Carolina. Results indicate that seasonal variations in crop coverage and vegetation in drainage ditches influence sediment delivery. The data show that headwater ditches may be decoupled from slopes so that much
of the eroded soil is stored within small watersheds rather than being transported out of the basin.
verification of the methods was performed in the torrential watersheds with active debris flows in the recent past (Predelica and Brusnik in the Soča River basin, W Slovenia). For some of the methods, the knowledge of morphometric characteristics
of a torrential watershed, torrential channel and torrential fan is enough. For other methods, a mathematical tool (HEC-HMS) had to be applied in order to develop a hydrologic run-off model of precipitation that can trigger debris flows. Computed debris-flow
magnitudes were of the order between 6,500 m3 and 340,000 m3. Their values are a function of torrential watershed parameters, such as : watershed area, Melton number, fan gradient, and torrential channel gradient. The investigated fans were classified into 3
The impact of land use on soil properties in a karst agricultural region of Southwest China : a case study of Xiaojiang watershed, Yunnan
Agricultural land use ; China ; Geochemistry ; Karst ; Land use ; Lithology ; Soil properties ; Watershed ; Yunnan
In this study the AA. analyzed the land use changes from 1982 to 2003, and assessed the effects of land use changes on pH value, organic matter, total N, total P, total K, available N, available P and available K in soil of Xiaojiang watershed
China ; Gully erosion ; Human impact ; Land use ; Loess ; Plateau ; Shaanxi ; Soil erosion ; Twentieth Century ; Watershed
The primary aim of this paper is to provide a case study from Zhifanggou, a small watershed in the Loess Plateau, to evaluate historic human impacts on soil erosion through a comprehensive analysis of land-use changes from 1938 to 1999, combined
Agricultural practice ; Coastal plain ; Drainage ; North Carolina ; Seasonal variation ; Sediment budget ; Sediment transport ; Slope gradient ; Soil erosion ; United States of America ; Vegetation ; Watershed
cross-sectional surveys of drainage ditches to assess erosion/deposition during a five-year period in the headwaters of a small agricultural watershed. Discussion of the results.
Agricultural land use ; China ; Groundwater ; Karst ; Land use ; Spatial variation ; Water quality ; Watershed ; Years 1980-89 ; Years 1990-99 ; Years 2000-2009 ; Yunnan
Taking the typical karst agricultural region, Xiaojiang watershed in Luxi of Yunnan Province as a research unit, utilizing the groundwater quality data in 1982 and 2004, the aerial photos in 1982 and TM images in 2004, supported by the GIS, the AA
Arizona ; Erosion ; Experimentation ; Grain size distribution ; Runoff ; Sediment budget ; Semi-arid area ; United States of America ; Watershed
Eight runoff plots, located within a small catchment within the Walnut Gulch Experimental Watershed, southern Arizona, were consructed to test the argument that sediment yield decreases as plot length increases. Runoff and sediment loss from
The paper deals with the definition of a conceptual model for groundwater flow system in Apennine watersheds mainly in siliciclastic turbidites. In general this lithology has been poorly studied and the scarcity of data has not allowed a whole
watershed systematic study of this kind of fractured aquifer/aquitard. The boring of a series of tunnels and the related collection of new hydrogeological data for the High Speed/High Capacity railway which connects Florence with Bologna, has led
Mountain rivers part I : watershed scale processes and channel morphology. Special issue
Channel geometry ; Digital elevation model ; Human impact ; Hydrological regime ; Italy ; Japan ; Land use ; Longitudinal section ; Mountain ; New Zealand ; Stream ; United States of America ; Watershed