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| Winkler,Antoniony S.; Silva,Jaqueline T. da; Parfitt,José M. B.; Teixeira-Gandra,Claudia F. A.; Conceço,Germani; Timm,Luis C.. |
| ABSTRACT In the lowlands of Rio Grande do Sul, land leveling is mostly carried out with no slope for the purpose of rice production. In this environment, soils with a low hydraulic conductivity are predominant owing to the presence of a practically impermeable B-horizon near the surface. Land leveling leads to soil accommodation resulting in the formation of depressions where water accumulates after heavy rainfalls, subsequently leading to problems with crops implanted in succession to rice, such as soybeans. The objective of this research was to quantify the areas and volumes of water accumulation in soil as a function of the slope of land leveling. Five typical leveled lowland areas were studied as a part of this research. The original areas presented... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lowlands; Surface drainage; Water accumulation; Digital elevation models. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000200077 |
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