Soil geographic database: structure and application examples

Zinck, J. A.; Valenzuela, Carlos R.

doi:10.1007/978-94-017-2879-9_23

Cited by 32 publications

(28 citation statements)

References 1 publication

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“…Physiographic units were delineated using the physiographic approach as proposed by Zinck and Valenzuela (1990) to identify boundaries as associated with different geomorphic processes. Afify et al (2010) considered this physiographic approach using visual interpretation leads to a good understanding of landscape genesis and features.…”

Section: Visual Interpretationsmentioning

confidence: 99%

The impact of informal irrigation practices on soil drainage condition, soil pollution and land suitability for agriculture in El Saf area of El Giza Governorate

Azab

Afify

Soliman

2015

The Egyptian Journal of Remote Sensing and Space Science

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The study area was selected in El Saf District of El Giza Governorate in Egypt, covering 21461.4 ha of Nile sediments and their outskirts of alluvial higher and lower terraces. The aim of this study was to assess the impact of informal irrigation practices on drainage deterioration, soil pollution and land suitability for agricultural use using the satellite LDCM data 2013. From the lower alluvial terraces (partly cultivated using wastewater), the drainage flows westward via descending slopes resulting in land deterioration in both the alluvial lower terraces and alluvial plain of River Nile. The drainage conditions are excessively drained soils in the alluvial upper terraces within soils of Typic Haplocalcids, sandy skeletal, but in the lower terraces it partly occurred within soils of Typic Torriorthents, sandy skeletal. Moderately well drained soils occurred in soils of Typic Torriorthents, sandy in the alluvial lower terraces, while in the alluvial plain of Nile sediments are Sodic Haplotorrerts, fine. Poorly drained soils in the lower alluvial terraces have soils of Typic Epiaquents, sandy associated with Sodic Psammaquents and Aquic Haplocalcids, coarse loamy, while in the alluvial plain of River Nile the soils are Halic Epiaquerts, fine. Very poorly drained soils (submerged areas) are scattered spots in both the lower alluvial terraces and the alluvial plain. In the alluvial plain of River Nile, 1967.1 ha become not suitable for the traditional cultivated crops, while in the alluvial terraces 3251.0 ha are not suitable for the proposed cultivation of Jojoba plants. Heavy metals of Cadmium (Cd), Cobalt (Co), Lead (Pb) and Nickel (Ni) were added to the soil surface and sub-surface in the irrigated areas by wastewater in the lower alluvial terraces (moderately well drained soils), but Cd and Co exceeded the standards of permissible total concentrations in these soils. The same metals were added to soil sub-surface layers in the alluvial plain (poorly drained soils), but Co exceeded the total permissible concentrations. Continuing these informal irrigation practices, drainage condition will be deteriorated in extra areas and all heavy metal concentrations will exceed the standards of permissible levels. Improving the land qualities of drainage is

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Section: Visual Interpretationsmentioning

confidence: 99%

The impact of informal irrigation practices on soil drainage condition, soil pollution and land suitability for agriculture in El Saf area of El Giza Governorate

Azab

Afify

Soliman

2015

The Egyptian Journal of Remote Sensing and Space Science

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“…The integration of geomorphic and soil information resulted in the establishment and mapping of the geopedologic units (i.e. soilgeoform units) forming the soilscape (Zinck, 1988;Zinck and Valenzuela, 1990). Geopedology is an approach to soil survey which combines geomorphic and pedologic criteria to determine soil map units.…”

Section: Geopedologic Mapsmentioning

confidence: 99%

Soilscape analysis at different scales using pattern indices in the Jarama–Henares interfluve and Henares River valley, Central Spain

2011

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“…4) showing the soil type details was prepared to understand the soil characteristics (salinity, graveliness, texture, irrigability, permeability, land use capability, and calcareousness) and was subsequently used to study groundwater level fluctuations. [12] Soil properties were considered carefully and each unit was given weightage according to its significant role [13] in controlling groundwater flow and water level fluctuations during raster analysis. Generic names were avoided and substituted with type names (from Types A to H) and soil types of similar character were grouped together.…”

Section: Soilmentioning

confidence: 99%

Study of influence of terrain and climatic factors on groundwater-level fluctuation in a minor river basin using GIS

Radhakrishnan¹,

Elango

2011

Geo-spatial Information Science

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Terrain environment parameters play a vital role in controlling groundwater movement: its recharge and discharge mechanisms. Many earlier studies have been conducted relating terrain parameters and groundwater condition using conventional methods and remote sensing techniques. This study, however, endeavors to spatially visualize the degree of fluctuation in the groundwater level of Ongur, a minor river basin in different terrain units under different seasons (monsoon and summer) for three historical periods of time using Geographic Information System (GIS) raster analysis.

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Soil geographic database: structure and application examples

Cited by 32 publications

References 1 publication

The impact of informal irrigation practices on soil drainage condition, soil pollution and land suitability for agriculture in El Saf area of El Giza Governorate

The impact of informal irrigation practices on soil drainage condition, soil pollution and land suitability for agriculture in El Saf area of El Giza Governorate

Soilscape analysis at different scales using pattern indices in the Jarama–Henares interfluve and Henares River valley, Central Spain

Study of influence of terrain and climatic factors on groundwater-level fluctuation in a minor river basin using GIS

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