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This paper presents the results of 40years of research on the gully system in the Doły Podmularskie catchment (0.35km² in size), which is situated in the south-western part of the loess-covered Nałęczów Plateau in SE-Poland. Topographic, stratigraphic and pedologic investigations, and monitoring of a tributary gully (gully area: 0.7ha, catchment: 2.5ha) were combined with historical, archaeological...
Dissolved organic carbon (DOC) affects biogeochemical processes in natural waters but factors affecting surface water DOC concentrations are rarely explored. Here, we related the spatial and temporal variations in DOC concentration at 10 sub-catchment outlets of the Zidasht catchment (Iran) to morphological and soil characteristics of the catchment. The DOC concentrations ranged between 1.8 and 35mgL...
The effects of climatic conditions on the delivery patterns of suspended solid and dissolved matter are evaluated by examining their correlation with air temperature, precipitation and runoff from glacial and non-glacial catchments at the headwaters of Urumqi River in eastern Tianshan, central Asia. The results show that the physical and chemical weathering fluxes (168 and 23tkm −2 yr ...
The climate of Patagonia is semi-arid and characterised by frequent strong winds. Wind erosion is potentially a serious soil degradation process that impacts long-term sustainability of local agricultural systems, but the conditions and the rates of wind erosion in this region have not been studied extensively. The aim of this study was to quantify windblown mass transport on a sandy soil in Central...
The determination of the changes in soil organic carbon (SOC) and inorganic carbon (SIC) in the subsoil following afforestation is meaningful and necessary for assessing carbon sequestration, but such knowledge is limited. In this case study, a paired-site approach was used to determine the differences in the SOC and SIC stock in the topsoil and subsoil, respectively, between a black locust (Robinia...
Aggregate porosity is the result of structural development, in turn controlled by pedogenic processes, which allow a soil to acquire specific characteristics and to lose those more related to the parent material. Porosity in sediments can be evaluated through simple packing models that provide an ideal porosity (Φ ideal ), which is based on soil particle size distribution only. As such they...
Studies concerning the stoniness of arable soils are scarce since those soils are commonly regarded as composed mainly of fine earth. However, even the influence of lesser volumes of stones and gravel on estimates of nutrient stocks may be significant. Nutrient analyses are performed on the fine earth fraction. It is therefore necessary to determine the bulk density and the relative soil volume that...
Most geological and soil maps are not detailed enough to represent the high lateral and vertical textural variability in the subsoil of coastal lowlands. Intensive sampling campaigns need to be carried out to quantify this variability. As an alternative, a proximal soil sensing procedure based on a single survey with an electromagnetic induction instrument was used to map a 6.5ha Holocene tidal area...
Mara River basin is an internationally acclaimed and ecologically significant basin in the Lake Victoria basin. The recent trend in major land use change in the upstream (forest-to-agriculture conversion) has been the major driver for the current hydrologic alterations. Recent hydrologic data and observations show a reduction in dry season flow, increase in peak flows during wet seasons and an increase...
Knowledge of soil water storage (SWS) within soil profiles is crucial when selecting appropriate practices for the restoration of vegetation. To study the temporal stability of SWS and identify representative locations in diverse soil layers, an analysis of temporal stability was performed using Spearman rank correlation coefficients and relative differences. From July 2008 to October 2010, the SWS...
The best possible model to predict the erosion from an area of land has been suggested to be a physical model of the area that has similar soil type, land use, size, shape, slope and erosive inputs. Therefore, a replicated plot has to be considered the best possible, unbiased, real world model. In this paper the physical model concept was tested by using soil loss data collected on plots of different...
Soil moisture plays a significant role in determining the amount of energy exchange between the atmosphere and the earth's surface and is highly variable in space and time. Temporal stability analysis (TSA) is a statistical approach for describing the persistence of spatial patterns and characteristic behavior of soil moisture. Using TSA, this study is aimed at determining the adequacy of long term...
The hydro-climatic trends were examined for the lower reach of the Shiyang River Basin in NW China using the wavelet analysis and the Mann–Kendall (M–K) test. In order to identify the optimal combination of the hydro-climatic data series in the discrete wavelet transform (DWT), the results from DWT were tested by the Mann–Kendall test. The results showed that the discharge significantly decreased...
Soil hydraulic properties evolve over time as a result of soil formation processes. We investigated the rate and circumstances of change in soil hydraulic properties as a result of soil and landscape evolution that took place over a period of a few decades to several thousands of years. To this end, a sediment-soil sequence in which different sandy landscapes and associated soils are preserved was...
Biological soil crusts (BSCs) abound in the Hallamish dune field in the western Negev Desert, Israel. While their abundance may imply high adaptability to environmental change, such as fluctuations between wet and dry conditions following winter rains, summer rains, although rare, may also occur in the Hallamish dune field. The aim of the present paper is to examine crust responses to winter and summer...
More than half a million soil science papers have been published since the 1920s. In addition, a large number of books are being published. This paper focuses on the seven major soil reference books that were published between 2000 and 2012: Handbook of Soil Science (2000 and 2012), Encyclopedia of Soil Science (2002 and 2006), Encyclopedia of Soils in the Environment (2005), Encyclopedia of Soil...
The study assesses the effects of event rainfall on the soil erosion in terraced paddy fields under rice cropping, fallow, and green manure planting. A 0.75-ha terraced rice field was used to investigate the soil erosion under the regular cultivation of rice in 2005, fallow in 2006, and planting with green manure in 2007. The results show that infiltration rates significantly increase when a terraced...
A large amount of geomorphic work is caused by a small number of extreme events that are mainly responsible for the time compression of geomorphic processes. The classic approach defines extreme events by their magnitude and they are quantified by certain deviation from a central value. Alternatively, we define extreme events as the largest events sorted by rank, whatever their absolute magnitude...
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