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Soil Sensitivity to Wind and Water Erosion as Affected by Land Use in Southern Iran

1
Department of Soil Science, School of Agriculture, Shiraz University, Shiraz 7144113131, Iran
2
Chair of Soil Science, Research Department of Ecology and Ecosystem Management, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354 Freising, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Andrea Ciampalini
Earth 2021, 2(2), 287-302; https://doi.org/10.3390/earth2020017
Received: 11 May 2021 / Revised: 31 May 2021 / Accepted: 3 June 2021 / Published: 6 June 2021
Land degradation by soil erosion is one of the most severe environmental issues that is greatly dependent on land use management. In this study, the effects of long-term land use management (including annual cultivated field (ACF), fallow field (FF), rangeland (R), and orchard field (OF)), soil depth (0–10 and 10–20 cm), and soil organic matter content (SOM) on wind- and water-erosion indices were investigated in calcareous soils of southern Iran. Soil samples were collected from four above-mentioned land-use types, and some soil properties and erosion indices were measured. Results showed that the most of soil aggregates stability indices in the surface layer (0–10 cm) of OF were higher than those in ACF, FF, and R, respectively, by nearly 39%, 32%, and 47% for dry mean weight diameter of aggregates (MWDdry); 10%, 10%, and 48% for dry geometric mean weight diameter of aggregates (GMDdry); 21%, 17%, and 15% for water-stable aggregates (WSA); and 11%, 16%, and 31% for aggregate stability index (ASI). Moreover, the mean of the soil wind erosion indicators in OF (0–10 cm) were lower than those in ACF, FF, and R, respectively, by nearly 18%, 24%, and 26%, for wind-erodible fraction (EF); 43%, 38%, and 49% for soil erodibility to wind erosion (K); and 36%, 32%, and 41% for wind erosion rate (ER). In ACF, despite the high clay content, some aggregate stability indices such as MWøDdry and WSA were the lowest among studied land-use types which showed the negative effects of conventional tillage practices. Depth factor had only a significant effect on dust emission potential (DEP) in ACF, FF, and OF. In addition, there were significant and strong correlations between SOM and MWDdry (r = 0.79), WSA (r = 0.77), EF (r = −0.85), K (r = 0.74), and ER (r = 0.74) in all datasets. View Full-Text
Keywords: aggregate stability indices; conventional tillage practice; land degradation; soil erodibility factor; soil organic matter; soil structure aggregate stability indices; conventional tillage practice; land degradation; soil erodibility factor; soil organic matter; soil structure
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MDPI and ACS Style

Mozaffari, H.; Rezaei, M.; Ostovari, Y. Soil Sensitivity to Wind and Water Erosion as Affected by Land Use in Southern Iran. Earth 2021, 2, 287-302. https://doi.org/10.3390/earth2020017

AMA Style

Mozaffari H, Rezaei M, Ostovari Y. Soil Sensitivity to Wind and Water Erosion as Affected by Land Use in Southern Iran. Earth. 2021; 2(2):287-302. https://doi.org/10.3390/earth2020017

Chicago/Turabian Style

Mozaffari, Hasan, Mahrooz Rezaei, and Yaser Ostovari. 2021. "Soil Sensitivity to Wind and Water Erosion as Affected by Land Use in Southern Iran" Earth 2, no. 2: 287-302. https://doi.org/10.3390/earth2020017

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