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1. 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

2. Interrill erodibility in relation to aggregate size class in a semi-arid soil under simulated rainfalls

Author:
Vaezi, Ali Reza; Eslami, Seyedeh Fatemeh; Keesstra, Saskia
Source:
Catena 2018 v.167 pp. 385-398
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; Water Erosion Prediction Project; aggregate stability; agricultural land; clay; clay fraction; equations; erodibility; hydraulic conductivity; hydraulic flumes; interrill erosion; organic matter; physicochemical properties; rain intensity; raindrop impact; rainfall simulation; sandy clay loam soils; sediments; semiarid soils; semiarid zones; soil aggregates; soil structure; tillage;     Show all 23 Subjects
Abstract:
... Interrill erodibility can be affected by soil aggregates, especially by those aggregate size classes that are dominant in the soil. In the Water erosion Prediction Project (WEPP) model, interrill soil erodibility (Ki) is estimated using very fine sand content. Despite that some studies have indicated an effect of aggregate stability on the Ki, information on the relationship between the aggregate ...
DOI:
10.1016/j.catena.2018.05.003

3. Soil carbon sequestration potential as affected by soil physical and climatic factors under different land uses in a semiarid region

Author:
Alidoust, Elham; Afyuni, Majid; Hajabbasi, Mohammad Ali; Mosaddeghi, Mohammad Reza
Source:
Catena 2018 v.171 pp. 62-71
ISSN:
0341-8162
Subject:
sand fraction,   etc   ; altitude; basins; bulk density; carbon dioxide; carbon sequestration; carbon sinks; clay; climate change; climatic factors; forest soils; forests; greenhouse gas emissions; irrigated farming; land use change; pastures; regression analysis; semiarid zones; soil depth; soil organic carbon; Iran;     Show all 21 Subjects
Abstract:
... Carbon (C) sequestration in soil is recognized as a possible solution for climate change mitigation. Different land uses may alter carbon sequestration in soil. In the semiarid regions of central Iran, during the last decades, land use changes from native cover to farmlands have altered the C sink role of soil to a source of CO2 emission to the atmosphere. This study was conducted to evaluate and ...
DOI:
10.1016/j.catena.2018.07.005