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Using beryllium-7 to evaluate soil erosion processes in agricultural lands in semiarid regions of Central Argentina.
- Source :
- Environmental Earth Sciences; Aug2018, Vol. 77 Issue 16, p1-1, 1p, 6 Graphs, 1 Map
- Publication Year :
- 2018
-
Abstract
- This work presents the results of a soil erosion study using the <superscript>7</superscript>Be technique. This technique estimates the water erosion/deposition from the comparison between <superscript>7</superscript>Be soil content of a reference site and an eroded or sedimented site. The soil samples were collected from an agricultural area of the semiarid region of Argentina near San Luis City, which has a marked rainfall season. The area has been used for crop cultivation, being subjected to plowing practices. The <superscript>7</superscript>Be in the Reference Site was in the first centimeter of soil, showing the typical exponential decreasing of <superscript>7</superscript>Be soil content with depth, with the <superscript>7</superscript>Be inventories value being 340 ± 50 Bq m<superscript>−2</superscript> for the dry season and 571 ± 48 Bq m<superscript>−2</superscript> for the rainy season. The <superscript>7</superscript>Be technique was applied to a potential eroded site subjected to traditional tillage practices (plowing). A net soil erosion value of 13.5 t ha<superscript>−1</superscript> (1.35 kg m<superscript>−2</superscript>) was obtained. From the assumptions of the applied technique, we can draw the inference that this erosion was caused by rains produced in the month prior to the date of soil sampling. [ABSTRACT FROM AUTHOR]
- Subjects :
- SOIL erosion
AGRICULTURE
SOIL sampling
SOIL testing
FARMS
RURAL land use
Subjects
Details
- Language :
- English
- ISSN :
- 18666280
- Volume :
- 77
- Issue :
- 16
- Database :
- Complementary Index
- Journal :
- Environmental Earth Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 132001682
- Full Text :
- https://doi.org/10.1007/s12665-018-7767-x