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Velayutham, M.
- Catenary Variations in Properties of Shrink-Swell Soils in Minor 4 of Jayakwadi Irrigation Project in Parbhani District, Maharashtra
Abstract Views :250 |
PDF Views:2
Authors
Affiliations
1 National Bureau of Soil Survey and Land Use Planning (ICAR), Regional Centre, Amravati Road, Nagpur-440 010, Maharashtra, IN
2 Water Management Scheme, Marathwada Agricultural University, Parbhani, Maharashtra, IN
1 National Bureau of Soil Survey and Land Use Planning (ICAR), Regional Centre, Amravati Road, Nagpur-440 010, Maharashtra, IN
2 Water Management Scheme, Marathwada Agricultural University, Parbhani, Maharashtra, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 57, No 5 (2001), Pagination: 429-434Abstract
A shrink-swell soil sequence developed over Cretaceous-Eocene age basaltic catena was examined for understanding the influence of local relief on morphological, physical and chemical characteristics of soil. The morphology of these clay soils occurring on microhighs and microlows of catena shows that the Vertic Haplustepts on summits have dark grey to brown matrix with subangular to angular blocky aggregates having pressure faces on ped surfaces. There was successive increase in the thickness of Cambic and slickensided horizons in subgroups of Vertisol on the middle and foot slopes having yellowish grey matrix with depth, and of angular blocky structural aggregates with hard and firm consistency when dry. The Fe and Mn concretions in Bssl and Bss2 horizons of Chromic Haplusterts (P3) and Typic Haplusterts (P4) have indicated periodic oxidation and reduction leading to successive mobilisation and precipitation of Fe and Mn as oxides of small nodules along slickensides. The particle size for soils of summits and middle slopes was 'fine' but for soils on foot slopes, the particle size was 'very fine' at family level. These soils are slightly to strongly alkaline with increasing trends of carbonates and decreasing trends of organic carbon content. Exchangeable Ca to Mg ratio decreased with the profile depth and landscape position. The analysis of variance revealed that lateral (between soils) and vertical (within soils) variations in organic carbon and exchangeable Ca to Mg ratio was significant. The study showed that the catena model can be used to predict random variability in soils on landscape and to quantify processes that govern landscape development.Keywords
Catena, Edge Effect, Shrink-Swell Soils, Jayakwadi Irrigation Project, Analysis of Variance.
- Soil Information System: Web-Based Solution for Agricultural Land-use Planning
Abstract Views :225 |
PDF Views:102
Authors
Tapas Bhattacharyya
1,
S. P. Wani
1,
P. Chandran
2,
P. Tiwary
2,
D. K. Pal
2,
K. L. Sahrawat
1,
M. Velayutham
2
Affiliations
1 International Crops Research Institute for Semi-Arid Tropics, Hyderabad 502 324, IN
2 National Bureau of Soil Survey and Land Use Planning, Nagpur 440 010, IN
1 International Crops Research Institute for Semi-Arid Tropics, Hyderabad 502 324, IN
2 National Bureau of Soil Survey and Land Use Planning, Nagpur 440 010, IN
Source
Current Science, Vol 110, No 2 (2016), Pagination: 241-245Abstract
The soil-forming factors, especially climate, vegetation and topography, act on a range of rock formations and parent materials leading to the development of different kinds of soils. Through concerted efforts, soil datasets generated earlier are used to develop maps and soil information systems at different scales. Progress in basic and fundamental research on the formation of Indian soils as related to climate, relief, organisms, parent materials and time has helped in developing the soil information system.Keywords
Agriculture, Information Technology, Landuse Planning, Soils.Full Text
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