Soil and Water Research, 2016 (vol. 11), issue 2
Estimating rainfall erositivity in semiarid regions. Comparison of expressions and parameters using data from the Guadalentín Basin (SE Spain)Original Paper
Julio PÉREZ-SÁNCHEZ, Javier SENENT-APARICIO
Soil & Water Res., 2016, 11(2):75-82 | DOI: 10.17221/279/2014-SWR 
One of the many factors that leads to soil erosion is rainfall erositivity, which is a basic physical factor enabling us to understand the geomorphological processes that take place in a basin. Results worldwide have shown that the erositivity R factor of the Universal Soil Loss Equation (USLE) has a high correlation with soil loss. In the past there have been few pluviometers capable of recording rainfall with continuous measurements. As a result of this lack of accuracy in the available series of rainfall intensity data, the calculation of the R factor has been restricted for a long time and various simplified models were developed on an international...
The role of surface microreliefs in influencing splash erosion: A laboratory studyOriginal Paper
Jia WU, Longshan ZHAO, Faqi WU, Zhanbin LI
Soil & Water Res., 2016, 11(2):83-89 | DOI: 10.17221/280/2014-SWR
The detachment and transport of soil particles from soil mass are important effects of falling raindrops on soil erosion during rainfall. The objective of this study was to determine whether soil microrelief affects the detachability and transportability of soil particles by raindrop splash. Experimental microreliefs were manually simulated by two tillage practices: shallow hoeing, contour chisel plowing, and a smooth slope served as control treatment. The experiment included three simulated rainfall intensities (1.0, 1.5, and 2.0 mm/min). A splash board was used to collect sediment splashed upslope as well as that splashed downslope. Results show...
Soil water regime of grassland communities along subtle topographic gradient in the Flooding Pampa (Argentina)Original Paper
Carla E. DI BELLA, Gustavo G. STRIKER, Juan LORETI, Diego J. COSENTINO, Agustín A. GRIMOLDI
Soil & Water Res., 2016, 11(2):90-96 | DOI: 10.17221/282/2014-SWR
Three plant communities positioned along a subtle topographic gradient, referred to as upland, intermediate, and lowland positions, characterize the landscape of the Flooding Pampa grasslands of Argentina. Although it is believed that the structure and functioning of the plant communities at each position are in close relationship with their hydric regime, this has never been quantified. More than 800 measurements of soil water content during four years, along with soil water retention curves, and physical and chemical parameters of soils were assessed at each position. Results showed that water availability during the year varied among the positions...
Effects of irrigated agriculture on water and soil quality (case perimeter Guelma, Algeria)Original Paper
Nora KACHI, Slimane KACHI, Houria BOUSNOUBRA
Soil & Water Res., 2016, 11(2):97-104 | DOI: 10.17221/81/2015-SWR
In Algeria, more than 20% of irrigated soils are concerned by the problem of salinity. In the perimeter of Guelma, the results showed that the soils have low salinity despite of high electrical conductivity (1244 µS/cm) of irrigation water and increased organic matter, nitrogen, potassium, and phosphorus contents. It should be noted that the soils had exhibited higher salinity and low organic matter content before starting the irrigation in 1973. The reduction in the salt content is due to the leaching of salts from percolated water after the intensive irrigation; however, the increase in the content of organic matter can be explained by the...
Using magnetic susceptibility mapping for assessing soil degradation due to water erosionOriginal Paper
Ondřej JAKŠÍK, Radka KODEŠOVÁ, Aleš KAPIČKA, Aleš KLEMENT, Miroslav FÉR, Antonín NIKODEM
Soil & Water Res., 2016, 11(2):105-113 | DOI: 10.17221/233/2015-SWR
This study focused on developing a method for estimating topsoil organic carbon content from measured mass-specific magnetic susceptibility in Chernozems heavily affected by water erosion. The study was performed on a 100 ha area, whereby 202 soil samples were taken. A set of soil samples was divided into 3 subsets: A (32 samples), B (67 samples), and C (103 samples). The mass-specific magnetic susceptibility using low (χlf) and high (χhf) frequency, and organic carbon content were measured at all soil samples. The contents of iron and manganese, extracted with a dithionite-citrate solution (Fed, Mnd)...
Soil aggregation and arbuscular mycorrhizal fungi as indicators of slope rehabilitation in the São Francisco River basin (Brazil)Original Paper
Andrej C. KIMURA, Maria Rita SCOTTI
Soil & Water Res., 2016, 11(2):114-123 | DOI: 10.17221/23/2015-SWR
Anthropogenic activity along the Velhas River (São Francisco River basin) has destabilized the banks of the river channel across an urban fragment. To improve the physical stabilization, the base of the slope was stabilized with urban construction waste. After this, the slope was revegetated with native species and arbuscular mycorrhiza fungi (AMF) inoculation was applied with a successfully restoration of the vegetative cover and ecological functions. This study aims to evaluate the role of the AMF population in the soil aggregation and stabilization of the revegetated slope. The soil aggregation was higher at the experimental site than at...
Response of organic nitrogen in Black Soil to long-term different fertilization and tillage practices in Northeast ChinaOriginal Paper
Li YAN, Hui LI, Jinjing ZHANG, Zhidan ZHANG, Ping ZHU, Qiang GAO, Wenxi LU
Soil & Water Res., 2016, 11(2):124-130 | DOI: 10.17221/32/2015-SWR
A long-term (18 years) effect of different fertilization and tillage management practices- fallowing treatment (no fertilizer, no cultivation); CK (no fertilizer, cultivation); N (nitrogen fertilizer); NP (nitrogen and phosphorus fertilizer); NK (nitrogen and potassium fertilizer); PK (phosphorus and potassium fertilizer); NPK (nitrogen, phosphorus, and potassium fertilizer); M1NPK (chemical fertilizer plus manure); 1.5M1NPK (1.5 times M1NPK); NPKS (mineral fertilizer plus straw); Rot (3-year crop rotation of maize-maize-soybean with M1NPK), and M2NPK (2 times manure plus mineral fertilizer) - on the content of total nitrogen and organic forms of nitrogen...
Remediation of fuel oil contaminated soils by activated persulfate in the presence of MnO2Original Paper
Sajad MAZLOOMI, Simin NASSERI, Ramin NABIZADEH, Kamiar YAGHMAEIAN, Mahmood ALIMOHAMMADI, Shahrokh NAZMARA, Amir Hossein MAHVI
Soil & Water Res., 2016, 11(2):131-138 | DOI: 10.17221/39/2015-SWR
In this study, batch system experiments were carried out for evaluating the capability of persulfate (PS) to remediate fuel oil contaminated soils. Remediation was performed by spiking soil samples with fuel oil and then treating the mixture with sodium PS. Different controlling factors including pH (3, 6, and 9), PS concentrations (50-500 mmol/l), metal activators (ferrous sulfate, magnetite, and MnO2), and temperature (25, 40, and 60°C) were considered. Results proved that PS oxidation is effective in fuel oil degradation. The best PS : Fe2+ molar ratios were reported 400 : 2 and 250 : 1 for silty clay and loamy sand soil samples,...
Is the atmosphere an important source of phosphorus in northern Poland?Original Paper
Anna JAROSIEWICZ, Zbigniew WITEK
Soil & Water Res., 2016, 11(2):139-145 | DOI: 10.17221/19/2015-SWR
In this paper we determined the phosphorus (P) concentration in precipitation, and calculated the annual P deposition rate at three study sites located in northern Poland. We observed that the mean annual volume-weighted concentration of mineral phosphorus (Pmin) in wet deposition varies from site to site. The estimated annual wet deposition rate of Pmin in the study region amounted from 0.1 to 0.39 kg/ha. The concentration and deposition rate of Pmin in the southern part of the study region was significantly lower than that in the northern and central part. We detected that the Pmin deposition was strongly...