Publication year: 2010
Source: CATENA, Volume 80, Issue 2, 15 February 2010, Page IFC
[No author name available]

Publication year: 2010
Source: CATENA, Volume 80, Issue 1, 15 January 2010, Page IFC
[No author name available]

Publication year: 2009
Source: CATENA, Volume 79, Issue 3, 15 December 2009, Page IFC
[No author name available]

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 17 October 2009
Jim, Bogen

The impact of unusual events on the sediment dynamics in rivers is discussed in this paper. The increase in the number of extreme precipitation events and other unusual weather events in Norway strongly suggests that weather conditions are changing. It is difficult to monitor sediment transport during large magnitude floods. It is however well known that they may deliver substantial amounts of sediment. The suspended sediment load in the upper Atna river during the springflood in 1995 was 44 times the mean load measured during the preceding years. The recurrence interval of this flood was estimated to be 100–200 years. The...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 15 October 2009
Tomáš, Grygar , Ivo, Světlík , Lenka, Lisá , Leona, Koptíková , Aleš, Bajer , ...

The floodplain of the Morava River in Strážnické Pomoraví, south-east Moravia, Czech Republic contains a very valuable record of regional environmental change, which goes back to several thousand years. Its interpretation has been limited by poor stratigraphic correlation and dating of the sediments. We present a geochemical solution to this challenge. We studied 8 outcrops of floodplain deposits from 4 localities along a 6km long part of the current meander belt of the Morava River in Strážnické Pomoraví using geochemical proxy analyses, magnetic susceptibility measurements, 14C dating of wood remnants, and sediment micromorphology. The proxy methods are based on elemental...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 14 October 2009
R.B., Foltz , N.S., Wagenbrenner

The assessment teams who make post-fire stabilization and treatment decisions are under pressure to employ more effective and economic post-fire treatments, as wild fire activity and severity has increased in recent years across the western United States. Use of forest-native wood-based materials for hillslope mulching has been on the rise due to potential environmental, erosion control efficacy, and economic incentives. One concern regarding use of woody materials prepared on or near burned sites is the wide range in the size distribution of the shredded materials. We tested three blends of shredded woody materials, each blend containing different amounts of fine...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 13 October 2009
Yazidhi, Bamutaze , Moses Makooma, Tenywa , Mwanjalolo Jackson Gilbert, Majaliwa , Veerle, Vanacker , Festus, Bagoora , ...

Water infiltration is an important hydrological process that influences runoff and soil loss patterns in mountain ecosystems. In this paper, we present results on spatial variation in infiltration in croplands on the volcanic soils of Mt. Elgon, in Eastern Uganda. Twelve experimental sites with slope gradients ranging from 12 to 32% were established. Infiltration tests were carried out with a double ring infiltrometer and three measurements were taken at the upper, middle and lower sections of each experimental site to assess the local variability of infiltration. In addition soil information was collected on each experimental site. The soil infiltration data...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 12 October 2009
J.D., Ruiz Sinoga , A., Romero Diaz , E., Ferre Bueno , J.F., Martínez Murillo

This study presents the results of an analysis into the role of soil surface conditions in the regulation of soil hydrology and erosive processes at one hillslope under dry Mediterranean climatic conditions. The methodology was based on the analysis of hillslope surface components and their hydrological and erosive function on a patch to scale by means of rainfall simulation and experimental plots. The results showed the existence of a complex eco-geomorphological system composed of a multitude of vegetation patches distributed at random on the hillslope, and where the presence of different surface conditions on the soil can have a sizeable...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 8 October 2009
Valdinar F., Melo , Carlos Ernesto G.R., Schaefer , Sandra Cátia P., Uchôa

Native Indians (Macuxi, Ingarikó and Uapishana) in the Raposa–Serra do Sol Indian Reserve have been cultivating forest soils since the early XIX century, especially those derived from dolerite sills, scattered within the quartzitic dominated landscape. Representative soils developed from mafic rocks under Indian shifting cultivation in northeastern Roraima, were submitted to physical, chemical and mineralogical analyses to characterize their pedogenetic characteristics and infer on their status under native Indian shifting cultivation. The soil profiles were classified as: Orthic Ebanic Chernosol (USDA Mollisol), vertic Orthic Ebanic Chernosol (USDA Mollisol), Eutrophic Haplic Cambisol (USDA mollic Inceptisol) and Eutrophic Red Nitosol (USDA Red...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 6 October 2009
Donald R., Carpenter , Geneva W., Chong

Salt and sediment contributions to the Colorado River and its tributaries pose economic and environmental concerns for the United States and Mexico. Land use decisions promoting the aggregation of Mancos Shale derived soils are one way to reduce the transportation of salts and sediments to water resources. We used a simple field test of soil aggregate stability to determine the site characteristics influencing the soil stability of sedimentary marine shale in the Gunnison Gorge National Conservation Area in Southwestern Colorado. Ninety-six 1m2 plots were intensively sampled to explore relationships between soil stability and the biological, chemical and physical site characteristics.Analysis...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 1 October 2009
Thea, Vogt , Norbert, Clauer , Philippe, Larqué

The widely outcropping igneous and metamorphic rocks of the circum-Baikal region all contain illite and chlorite resulting from early alteration of primary minerals. These rocks were deeply weathered and leached, mainly to kaolinite, under the warm and mostly wet Upper-Cretaceous and Palaeogene climates. During the following severely dry and cold Pleistocene episodes, the glacier cover was restricted, allowing the formation of permafrost, which is still several hundred metres thick in the northern Baikal region, while the lowlands of the central and southern regions belong to the so-called “sporadic permafrost area”. The lack of glacial abrasion during the cryo-arid climate preserved...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 1 October 2009
V., Summa , F., Tateo , M.L., Giannossi , C.G., Bonelli

Clayey silts involved in a landslide have been sampled to study the role of sediment composition in developing sliding surfaces. Five drillings enabled the collection of 46 samples and to define active slide surfaces and non-active surfaces (discontinuities).Active surfaces are enriched in 16–63μm fractions and depleted in 2–8μm fractions, whereas discontinuities show grain-size features similar to undisturbed sediments.The organic carbon is low and the Corg/N ratio is bimodal, but the Corg% and the Corg/N ratio are not related to sliding or discontinuities.Sheet silicates are more abundant than quartz carbonates and feldspars; gypsum and hematite occur in some samples at trace...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 22 September 2009
Thomas, Fischer , Maik, Veste , Wolfgang, Wiehe , Philipp, Lange

Biological soil crusts play a key role for hydrological processes in many open landscapes. They seal the topsoil and generate surface run-off. Utilization of the mineral substrate at early stages of microbiotic crusts was investigated using scanning electron microscopy (SEM), water repellency indices were measured using the ethanol/water microinfiltrometer method, and steady state water flow was determined on the dry crusts and after 300, 600, 1200 and 1800s of wetting, thus allowing to follow pore clogging through swelling of extracellular polymeric substances (EPS). It was found that water repellency increases with initial crust development where filamentous cyanobacteria and filamentous green...

Publication year: 2009
Source: CATENA, Volume 79, Issue 2, 15 November 2009, Page IFC
[No author name available]

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 12 September 2009
M.I., Prudêncio , M.I., Dias , F., Ruiz , J.C., Waerenborgh , J., Duplay , ...

Soils of the semi-arid area of the El Melah coastal lagoon (NE Tunisia), with a closing evolution dynamic, were studied aiming: (1) the chemical and mineralogical characterization of surface and subsurface layers of soil profiles from locations previously submerged and of soils developed on dunes; (2) to evaluate the dependence on the environment conditions of the geochemical patterns of the soils; and (3) to determine chemical and mineralogical variations with the emersion of the sediments resulting from the decrease in the extent of the area permanently covered by water in the lagoon. The compositional results obtained showed significant differences depending...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 10 September 2009
Des, Walling , Jim, Bogen , Paolo, Porto

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 9 September 2009
J.C., Fernández-Caliani , M., Cantano

This study documents the mineralogical and geochemical record of a lateritic weathering event during the Pliocene in South-west Spain. The paleoweathering profile derived from arkosic sands and comprises a white sandy clayey saprolite, a red mottled clay zone overlain by a thick soft layer, and a ferruginous pisolitic hardcap partially dismantled by erosive processes. Kaolinite, quartz and degraded K-feldspars are the major minerals forming the saprolite, along with Al-goethite (mottled zone) as well as gibbsite and boehmite (soft layer), while the pisolitic duricrust is essentially composed of quartz grains embedded in a matrix of Fe oxy-hydroxides (hematite, goethite, and/or maghemite)....

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 9 September 2009
Bruno, Verbist , Jean, Poesen , Meine, van Noordwijk , Widianto , Didik, Suprayogo , ...

Tropical deforestation and land use change is often perceived as the major cause of soil loss by water erosion and of sediment load in rivers that has a negative impact on the functioning of hydropower storage reservoirs. The Sumberjaya area in Sumatra, Indonesia is representative for conflicts and evictions arising from this perception. The purpose of this study as part of a Negotiation Support System approach was to assess sediment yield both at plot and catchment scale and to relate it to a variety of possible clarifying factors i.e. land use, geology, soil and topography. Sediment yield at catchment scale...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 8 September 2009
F., Gentile , T., Bisantino , R., Corbino , F., Milillo , G., Romano , ...

In Northern Puglia watershed's high rates of suspended sediment loads occur along the hydrographic network during intense rainfall events. In order to monitor this phenomenon an automated station, equipped with a turbidity probe, has been set up in the Carapelle torrent.A laboratory testing stage of the turbidity probe was preliminary designed to evaluate the dual functionality of the instrument (turbidity and suspended solids) in relation with the sediment concentration and the grain size distribution. Successively a field calibration of the instrument was carried out to determine the relationship between optical and gravimetric data and to check the housing device. Afterwards,...

Publication year: 2009
Source: CATENA, In Press, Corrected Proof, Available online 6 September 2009
Jie, Ding , Keith, Richards

This paper outlines an analysis of the spatial distribution of sediment production, delivery and yield in the Xihanshui River basin, South Gansu, China, using the modelling tools of SedNet (Prosser et al., 2001). This model can assess the delivery efficiency to downstream locations, as well as identifying locations with high rates of sediment production. Preliminary model experiments assist understanding of the spatial dynamics of these sediment processes and evaluation of the effectiveness of soil conservation practices since the mid-1980s. Three scenario years (dry, average and wet) from the 1983–2005 record are identified and modelled, and land use and management are...