PubAg

Main content area

Search

9  Search Results

1 - 9 of 9
Number of results to display per page

Search Results

1. Variability of soil physical quality and erodibility in a water-eroded cropland

Author:
Stavi, Ilan; Lal, Rattan
Source:
Catena 2011 v.84 no.3 pp. 148-155
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; accelerated erosion; agroecosystems; bulk density; clay; cropland; erodibility; hydraulic conductivity; nitrogen content; permeability; resistance to penetration; sand; shear strength; silt; soil heterogeneity; soil organic carbon; water erosion; Ohio;     Show all 18 Subjects
Abstract:
... Physical degradation of the soil increases its susceptibility to erosion by water action. However, relatively few studies have evaluated the opposite, i.e., the impact of water erosion on soil erodibility. This study was conducted in a corn field in Ohio. Some sites within the field have experienced water-induced soil erosion following heavy rainstorms. Physical characteristics of the soil were co ...
DOI:
10.1016/j.catena.2010.10.006

2. Using palm-mat geotextiles for soil conservation: II. Effects on in situ soil particle size distribution and nutrient concentration

Author:
Bhattacharyya, R.; Fullen, M.A.; Booth, C.A.; Black, A.W.; Townrow, D.
Source:
Catena 2013 v.101 pp. 143-156
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; Borassus; Mauritia flexuosa; calcium; clay; clay fraction; clay soils; conservation buffers; copper; field experimentation; geotextiles; grasses; iron; leaves; magnesium; manganese; molybdenum; nutrient content; nutrients; particle size distribution; runoff; sand; silt; soil conservation; topsoil; zinc; South America; United Kingdom; Western Africa;     Show all 29 Subjects
Abstract:
... Although geotextile mats have considerable potential for soil conservation, field studies on their impacts on soil particle size distribution and nutrient conservation are scant. Hence, field experiments were conducted at Hilton, east Shropshire, U.K. (52°33′5.7″N, 2°19′18.3″W) during 2007–2009, to study the impacts of palm-mat geotextiles on topsoil (0–5cm) particle size distribution and changes ...
DOI:
10.1016/j.catena.2012.09.002

3. Predicting event soil loss from bare plots at two Italian sites

Author:
Bagarello, V.; Ferro, V.; Giordano, G.; Mannocchi, F.; Todisco, F.; Vergni, L.
Source:
Catena 2013 v.109 pp. 96-102
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; clay; losses from soil; models; prediction; runoff; silt; soil erosion; Italy; Sicily;     Show all 10 Subjects
Abstract:
... Including runoff in USLE-type empirical models is expected to improve plot soil loss prediction at the event temporal scale and literature yields encouraging signs of the possibility to simply estimate runoff at these spatial and temporal scales. The objective of this paper was to develop an estimating procedure of event soil loss from bare plots (length=11–44m, slope steepness=14.9–16.0%) at two ...
DOI:
10.1016/j.catena.2013.04.010

4. Dust deposits on La Graciosa Island (Canary Islands, Spain): Texture, mineralogy and a case study of recent dust plume transport

Author:
Menéndez, Inmaculada; Pérez-Chacón, Emma; Mangas, José; Tauler, Esperança; Engelbrecht, Johann P.; Derbyshire, Edward; Cana, Luis; Alonso, Ignacio
Source:
Catena 2014 v.117 pp. 133-144
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; X-ray diffraction; aragonite; beaches; calcite; case studies; clay; climate; coasts; continental shelf; energy-dispersive X-ray analysis; eolian deposits; illite; kaolinite; models; montmorillonite; particulates; quartz; samplers; sand; scanning electron microscopy; sediment traps; silt; silt fraction; texture; wind speed; Canary Islands; Spain;     Show all 28 Subjects
Abstract:
... La Graciosa volcanic island evolved in the late Pleistocene–Holocene. It is situated along the northeast of the Canarian Archipelago, with a subaerial surface of 27km2. This island is located close to the Western Sahara, being 80km from the north-western African continental shelf and 145km from the coast. The island supports a very small permanent population. The climate is coastal-arid (116mm pre ...
DOI:
10.1016/j.catena.2013.05.007

5. Use of a state-space approach to predict soil water storage at the hillslope scale on the Loess Plateau, China

Author:
Duan, Liangxia; Huang, Mingbin; Zhang, Luodan
Source:
Catena 2016 v.137 pp. 563-571
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; clay; clay fraction; equations; fractal dimensions; prediction; regression analysis; silt; soil water; soil water storage; topography; water resources; China;     Show all 13 Subjects
Abstract:
... Soil water storage is a critical variable controlling hydrological and biological processes. The precise estimation of soil water storage in diverse soil layers is fundamental to understanding hydro-biological processes and efficiently managing water resources. The objectives of this study were to evaluate the effects of topography (elevation) and soil properties (clay, silt, sand content, median ...
DOI:
10.1016/j.catena.2015.11.003

6. Spatial variability of soil texture fractions and pH in a flood plain (case study from eastern Iran)

Author:
Pahlavan-Rad, Mohammad Reza; Akbarimoghaddam, Alireza
Source:
Catena 2018 v.160 pp. 275-281
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; case studies; clay; ecosystems; environmental factors; floodplains; hydraulic conductivity; models; normalized difference vegetation index; pH; prediction; rivers; sand; silt; soil sampling; soil structure; soil surveys; soil texture; wind; wind erosion; Iran;     Show all 21 Subjects
Abstract:
... Flood plain ecosystems show significant soil spatial variability. Understanding spatial variations of soil texture fractions and pH in flood plains is necessary for ensuring proper management of these plains, because these properties influence soil structure, fertility, hydraulic conductivity, infiltration, and erosion. In the present study, the distribution of soil texture fractions and pH was in ...
DOI:
10.1016/j.catena.2017.10.002

7. Predicting soil loss and sediment characteristics at the plot and field scales: Model description and first verifications

Author:
Lobo, Gabriel P.; Bonilla, Carlos A.
Source:
Catena 2019 v.172 pp. 113-124
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; Revised Universal Soil Loss Equation; Water Erosion Prediction Project; clay; conservation practices; databases; erodibility; geometry; land management; meteorological data; planning; plowing; prediction; rain; regression analysis; silt; soil conservation; soil erosion; soil water; topographic slope; water conservation; water quality; Chile;     Show all 23 Subjects
Abstract:
... Soil loss models are useful tools for making land management decisions to prevent soil and water quality problems. Several soil loss models have been developed, including the process-based Water Erosion Prediction Project (WEPP) model and the empirical Revised Universal Soil Loss Equation (RUSLE). Although process-based models provide accurate soil loss estimates, they are infrequently used for co ...
DOI:
10.1016/j.catena.2018.08.017

8. The use of pedo-transfer functions for estimating soil organic carbon contents in maize cropland ecosystem in the Coastal Plains of Tanzania

Author:
Mwango, S.B.; Wickama, J.; Msanya, B.M.; Kimaro, D.N.; Mbogoni, J.D.; Meliyo, J.L.
Source:
Catena 2019 v.172 pp. 163-169
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; clay; climate change; coastal plains; corn; cropland; ecosystems; laboratory experimentation; model validation; models; prediction; regression analysis; sand; silt; soil organic carbon; soil sampling; soil texture; Tanzania;     Show all 18 Subjects
Abstract:
... Soil organic carbon (OC) plays a vital role on physico-chemical and biological properties of soils and on climate change regulation. The use of pedo-transfer functions from easily available soil properties for estimating soil OC could be fast and cheap when considering field and laboratory work implications especially in Sub Saharan Africa including Tanzania. This paper attempts to develop a model ...
DOI:
10.1016/j.catena.2018.08.031

9. Influencing factors on soil nutrients at different scales in a karst area

Author:
Wang, Miaomiao; Chen, Hongsong; Zhang, Wei; Wang, Kelin
Source:
Catena 2019 v.175 pp. 411-420
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; clay; climate; karsts; land use; microrelief; nitrogen; phosphorus; quantitative analysis; silt; soil depth; soil nutrients; soil organic carbon; soil quality; soil texture; total nitrogen; total phosphorus; watersheds; China;     Show all 19 Subjects
Abstract:
... Soil carbon (C), nitrogen (N), and phosphorus (P) are some of the most important indicators of soil quality, especially in fragile ecological environments with shallow soils. However, the differences in their variations and influencing factors related to scale in karst areas remain unclear. Therefore, variations in surface soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) d ...
DOI:
10.1016/j.catena.2018.12.040