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Accueil du site → Doctorat → Inde → 2016 → SOIL RESOURCE INVENTORY USING REMOTE SENSING AND GIS FOR KENGAKI MINI-WATERSHED OF CHAMARAJANAGAR DISTRICT, KARNATAKA

University of Agricultural Sciences GKVK Bengaluru (2016)

SOIL RESOURCE INVENTORY USING REMOTE SENSING AND GIS FOR KENGAKI MINI-WATERSHED OF CHAMARAJANAGAR DISTRICT, KARNATAKA

SHIVANNA, B

Titre : SOIL RESOURCE INVENTORY USING REMOTE SENSING AND GIS FOR KENGAKI MINI-WATERSHED OF CHAMARAJANAGAR DISTRICT, KARNATAKA

Auteur : SHIVANNA, B

Université de soutenance : University of Agricultural Sciences GKVK Bengaluru

Grade : Doctor of Philosophy (PhD) 2016

Résumé
Characterization and evaluation of soils for capability, irrigability and crop suitability was carried out in Kengaki mini-watershed of Chamarajanagar district, Karnataka using remote sensing and GIS techniques. The study area has semi-arid climate with average annual rainfall of 799.3 mm. Nine pedons representing the entire study area were studied for morphological and physicochemical properties. The soils were loamy sand to clay in texture, shallow to very deep in depth, dark yellowish brown to red in colour, slightly acidic to strongly alkaline in reaction, low to medium in organic carbon status. Based on the characters, soils were classified as Typic Rhodustalfs, Ultic Haplustalfs, Typic Haplustepts, Vertic Haplustepts. Soils of Thammadihalli, Kumachahalli-2 and Kengaki-2 series were classified under land capability class IIes, Shyanandrahalli-1, Kumuchahalli-1, Kumuchahalli-3 Kengaki-1, Shyanandrahalli-2 soils were under IIIes and Lakkuru soils were classified under IVes. Soils of Thammadihalli, Kengaki-2, and Kumachahalli-2 series were classified under soil irrigability class 2 with the moderate limitations, Shyanandrahalli-1, Kumuchahalli-1, Kumuchahalli-3 and Shyanandrahalli-2 series were classified under class 3 with severe soil and topography limitations. Soils of Kumuchahalli-2 series were highly suitable for the cultivation of sorghum, tomato, cotton and coconut whereas soils of Kumuchahalli-3 series were highly suitable for the cultivation of sorghum and tomato without any limitations. Based on the information obtained from the thematic maps and soil data, the soils were divided into four groups and for which alternate land use options were suggested.

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