Zobrazeno 1 - 10
of 21
pro vyhledávání: '"J. R. Hoover"'
Autor:
J. R. Hoover
Publikováno v:
Transactions of the ASAE. 33:1843-1850
A field cross-section instrumented with transducer water potential sensors and with seep and runoff detectors was used to evaluate the size of the area contributing surface runoff to a stream. Runoff and seep detectors were designed as water-activate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c309ae79549c523efa9d9f9ed13cc10
https://doi.org/10.13031/2013.31548
https://doi.org/10.13031/2013.31548
Publikováno v:
Transactions of the ASAE. 23:1424-1427
THE effects of soil air entrapment and subsurface drainage on infiltration into a sand were investigated in the laboratory under simulated rainfall conditions. When soil air was free to escape from the sample through a subsurface drain, the drain sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a7b942c8657c6ef7bd807a657ff8199
https://doi.org/10.13031/2013.34792
https://doi.org/10.13031/2013.34792
Publikováno v:
Transactions of the ASAE. 28:1598-1601
THE effect of entrapped soil air on soil erosion during simulated rainfall was investigated. A rotating disc rainfall simulator generated laboratory rainstorms of 220 mm/h intensity with raindrop characteristics similar to those of natural rainfall.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b74c16b21b97024267cc6584d50cdebe
https://doi.org/10.13031/2013.32483
https://doi.org/10.13031/2013.32483
Publikováno v:
Transactions of the ASAE. 31:0761-0768
AFTER exposure to several different initial rainfall durations and rainfall sequences, the constant-head cumulative infiltration of water into disturbed Hagerstown silt loam Ap horizon soil samples of two aggregate sizes was measured. The Green-Ampt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f37fb1093ecfc026a50bc3e6ccbcb10b
https://doi.org/10.13031/2013.30780
https://doi.org/10.13031/2013.30780
Publikováno v:
Transactions of the ASAE. 27:0093-0098
THE effects of soil air entrapment on erosion and infiltration were investigated by two laboratory studies, one with a fallow soil and one with a grass cover. Both the fallow soil and the grass cover experiment had a zone which restricted the downwar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f9d1842f502dc6335ac6f51b875d135
https://doi.org/10.13031/2013.32742
https://doi.org/10.13031/2013.32742
Autor:
A. R. Jarrett, J. R. Hoover
Publikováno v:
Transactions of the ASAE. 28:179-182
INFILTRATION rate tests were run on a sand and on a loam soil after the natural soil air was evacuated and replaced with C02 gas. When the C02 was free to escape at atmospheric pressure, the infiltration rates were 50% higher in the sand and 56% high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82994efd770cfc70e7f9f6a79f2a3b91
https://doi.org/10.13031/2013.32224
https://doi.org/10.13031/2013.32224
Autor:
W. J. Grant, J. R. Hoover
Publikováno v:
Transactions of the ASAE. 26:1401-1408
A procedure is described to calculate the coefficients of the Gardner (1958) hydraulic conductivity and Taylor and Luthin (1969) moisture content equations from soil moisture characteristic data. A computer program fits the equations K = d/(hC3 + C2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71fa1bf2cd18afe4cce9bb765c448e3e
https://doi.org/10.13031/2013.34140
https://doi.org/10.13031/2013.34140
Publikováno v:
Transactions of the ASAE. 28:1878-1884
TIME dependent relationships between soil detachment and splash, soil shear strength and the depth of ponded water on the soil surface are developed for Hagerstown silt loam under simulated rainfall. Soil splash rate was highly correlated to soil she
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1db6ce3980de1ab206d7ff158b45193
https://doi.org/10.13031/2013.32535
https://doi.org/10.13031/2013.32535
Publikováno v:
Transactions of the ASAE. 30:0158-0161
SOIL loss from 99-mm diameter laboratory samples of Hagerstown silty clay loam soil was measured under 55 mm/h simulated rainfall. The soil losses from two aggregate size distributions of the same soil were compared. When rain was applied in differen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af47bb86ab6e4ebce6a177a0aafc291f
https://doi.org/10.13031/2013.30419
https://doi.org/10.13031/2013.30419
Autor:
J. R. Hoover, A. R. Jarrett
Publikováno v:
Transactions of the ASAE. 32:1358-1364
The effect of soil air entrapment on surface runoff rate and quantity was evaluated in the field using shallow subsurface drainage and tillage treatments to modify the amount of air trapped in a fragipan soil. The volume of pore space filled with air
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5fb284763fb9e0a6413ea6033421a80
https://doi.org/10.13031/2013.31157
https://doi.org/10.13031/2013.31157