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Indian Journal of Ecology
Year : 2022, Volume : 49, Issue : 6
First page : ( 2076) Last page : ( 2081)
Print ISSN : 0304-5250.
Article DOI : 10.55362/IJE/2022/3788

Assessment of Soil quality in Rural and Peri-urban Areas of Southern Transect of Bengaluru by using Principal Component Analysis

Kuntoji Altaf*, Subbarayappa C.T.

Department of Soil Science and Agricultural Chemistry, UAS, GKVKBengaluru-560 065, India

*E-mail: altafkuntoji123@gmail.com

Online published on 27 January, 2023.

Abstract

Environmental degradation is caused by urbanization in developing countries affects soil and water quality year by year in the surrounding areas with this our objective was to assess the soil quality of rural and peri-urban areas of southern transect of Bengaluru. Among the different regions, soils of rural areas had recorded significantly higher available N (323.01 kg ha−1), P (28.98 kg ha−1), K (246.16 kg ha−1), exchangeable Ca [9.67 c mol (p+) kg−1 soil], Mg [7.22 c mol (p+) kg−1 soil], available S (19.32 kg ha−1), Zn (0.73 ppm), B (0.84 ppm) and dehydrogenase activity (DHA) (14.59 μg TPF g−1 soil 24 h−1) compared peri-urban. Soils of peri-urban areas were recorded higher Cd (0.041 ppm), Cr (0.049 ppm), Pb (0.033 ppm) and Ni (0.043 ppm). The principal component analysis was used to evaluate the soil quality index of rural and peri-urban areas. The most influenced indicators were: OC, soil pH, S, P and clay. The soils of rural areas had SQI 0.61 and peri-urban 0.54. Conclusively, soil quality of rural and peri-urban areas falls under the medium category of soil quality viz., 0.50–0.75.

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Keywords

Soil quality, Principal component analysis, Southern transect of Bengaluru.

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