Soil and Water Conservation Engineering

Schwab, G. O.; Frevert, Richard K.; Edminster, T. W.; Barnes, Kenneth K.

doi:10.1097/00010694-195507000-00025

Cited by 107 publications

(17 citation statements)

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“…Implements used for ripping are usually equipped with wheels and with vertical blades that penetrate the soil 14 to 30 in, requiring tractors the equivalent of Caterpillar D-6 to D-9. As a general practice subsoiling or ripping has not resulted in large yield increases or greatly improved soil conditions (Frevert et al, 1955). Ripping with a chisel to depths of 12 to 15 in with spacings of 5 to 30 ft gave no significant improvement in plant production in Wyoming (Barnes et al, 1958).…”

Section: Review Of Literaturementioning

confidence: 99%

Contour Furrowing, Pitting, and Ripping on Rangelands of the Western United States

Branson¹,

Miller²,

McQueen³

1966

Journal of Range Management

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Section: Review Of Literaturementioning

confidence: 99%

Contour Furrowing, Pitting, and Ripping on Rangelands of the Western United States

Branson¹,

Miller²,

McQueen³

1966

Journal of Range Management

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“…, 2008). The risk of surface flow in soils under different types of use was considered in the run‐off factor through taking into account slope, texture of the surface horizon, plant cover and agricultural practices (Frevert et al. , 1955).…”

Section: Methodsmentioning

confidence: 99%

“…The first measurement was the distance between the point and the water course in periods when low rainfall prevailed (June-July), and the second was the distance between the point and the water course in periods when high rainfall occurred (March-May), when flooding close to streams results in a decrease in the distance between the point considered and the water course (Sharpley et al, 2008). The risk of surface flow in soils under different types of use was considered in the run-off factor through taking into account slope, texture of the surface horizon, plant cover and agricultural practices (Frevert et al, 1955). The values assigned to each of the components in the transport factor are given in Table 1.…”

Section: P Indexmentioning

confidence: 99%

Validation and modification of the phosphorus loss index as applied to a small catchment

Troitiño

Trasar-Cepeda

Leirós

et al. 2013

Soil Use and Management

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Environmental legislation in many countries requires the development of phosphorus indices to determine the risk of P loss from soils to water. The concentrations of total phosphorus (TP), molybdate-reactive phosphorus (MRP) and particulate phosphorus (PP) and the movement of these P forms were determined in a small catchment in Galicia (north-west Spain) with the aim of establishing an index of P loss. The discharges and concentrations of the different P forms were measured at different points in the river basin. The information was used to estimate the accuracy of a P index derived from the model described by Gburek et al. (2000). The amount of P lost over the 5-month period of study was ca. 60 g ⁄ ha; in essence, the overall loss was low. The P losses differed throughout the study period and between sampling points, and some areas of the catchment acted as P sinks. This was probably associated with the transport of deposited material by the rivers. Of the two components included in the index, the source factor was consistent with the source areas in the catchment as identified by water analysis. However, the transport factor was not very consistent with the field data and must be reconsidered.

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“…The closer to 1.0 the CI, the more circular is the basin. The more circular the basin, the faster the effects of a rainfall are perceived in the basin output (LIMA, 2008;FREVERT et al, 1963).…”

Section: /15mentioning

confidence: 99%

Space-Temporal analysis of suspended sediment in low concentration reservoir by remote sensing

Chelotti

Martinez²,

Roig

et al. 2019

RBRH

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The study of small reservoirs with low suspended sediment concentration (CSS) is still a challenge for remote sensing. In this work we estimate CSS from the optical properties of water and orbital imagery. Campaigns were carried out at selected dates according to the calendar of sensor passages, rainfall seasonality and hydrograph of the reservoir for the collection of surface water samples and field spectroradiometry. The calibration between CSS and spectral behavior generated CSS estimation models from MODIS and Landsat 8 data, allowing investigation of their temporal and spatial behavior. The MODIS model generated a time series of CSS from 2000 to 2017, presenting R2 = 0.8105 and RMSE% = 39.91%. The Landsat 8 model allowed the spatial analysis of CSS, with R2 = 0.8352 and RMSE% = 15.12%. The combination of the proposed models allowed the temporal and spatial analysis of the CSS and its relationships with the rainfall regime and the quota variation of the Descoberto reservoir (DF). The results showed that the use of orbital data complements the CSS information obtained by the traditional methods of collecting and analyzing water quality in low CSS reservoirs.

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Soil and Water Conservation Engineering

Cited by 107 publications

References 0 publications

Contour Furrowing, Pitting, and Ripping on Rangelands of the Western United States

Contour Furrowing, Pitting, and Ripping on Rangelands of the Western United States

Validation and modification of the phosphorus loss index as applied to a small catchment

Space-Temporal analysis of suspended sediment in low concentration reservoir by remote sensing

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