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Seasonal Occurrence of Runoff and Erosion from a Sandy Soil in Vegetable Production 1
Author(s) -
Brill G. D.,
Neal O. R.
Publication year - 1950
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1950.00021962004200040006x
Subject(s) - soil conservation , surface runoff , citation , service (business) , agriculture , erosion , environmental science , library science , geography , business , computer science , archaeology , ecology , geology , biology , paleontology , marketing
A T IS recognized that erosion and runoff vary widely I in amount from different land conditions and under different weather influences. From any particular land area these losses vary from year to year and from season to season within each year. Variations in annual losses, to the extent that they are dependent on weather conditions, are not predictable. Relative seasonal losscs within the year, however, follow a reasonably regular pattern and are thus predictable. Losses tend to be higher in seasons of high-rainfall intensity during the year. Vegetation, including winter cover crops and even cultivated crops, tends to reduce losses as compared with an uncropped condition. The seasonal nature of runoff and soil losses has been shown in several reports (1, 2, 3, 4, 5, 6, 7, 8, lO)3 and is attributed to the seasonal distribution of high-intensity rainfall. This is a matter of considerable importance in the design and application of conservation practices. The most successful practices will presumably be those which excrt their maximum effectiveness during the season of potentially highest soil and water losses. I t is the purposc of this report to present specific data for this area showing (a) when high-intensity rainfall may be expccted to occur, (b) the effect of rainfall intensity on soil and water losses, and (c) the effect of winfer cover crops in reducing soil and water losses at all seasons of the year. n.11. n n