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Aakriti Chauhan S. C. Verma S. K. Bhardwaj Uday Sharma Rakesh Kumar Gupta Rajnish Sharma

Abstract

The present investigations were carried out in the year 2014 with an objective to find out the impact of different cropping systems on nearby surface water resources in Shimla region of Himachal Pradesh. The aim of the study was to monitor the surface water bodies for pollution caused by nearby cropping systems in the Shimla area. In this study fruit, fruit + vegetable, vegetable and cereal based cropping systems were selected along with control (uncultivated land) and sampling was done during winter, summer and rainy seasons. The estimated water quality parameters revealed very less organic pollution and pH values were within the BIS prescribed limits of 6.5-8.5. Under vegetable based cropping system EC (500.23 µS cm?1), TDS (329.17 mg/l), BOD (1.48 mg/l), COD (31.09 mg/l), Cl- (25.66 mg/l), Ca (75.59 mg/l) and Mg (11.14 mg/l) were in high concentration, whereas No3- content were high under fruit + vegetable based cropping system. DO were maximum (8.61mg/l) under uncultivated land. Calcium and COD were high in some samples, which could be from anthropogenic sources, rest of the parameters were within the desirable limits prescribed by Bureau of Indian Standards (BIS). The experimental data were statistically analysed through Analysis of variance (two way classification of data) indicated positive correlation among most of the physical and chemical parameters. Study reveals that cropping systems as well as seasonal changes has affected the water quality. The study carried out for water quality parameters, revealed the correlation of each parameter with one another under different cropping systems.

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Keywords

Agriculture, Cropping system, Intensive farming, Seasons, Water quality

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Chauhan, A., Verma, S. C., Bhardwaj, S. K., Sharma, U., Gupta, R. K., & Sharma, R. (2016). Impact of cropping systems on physico-chemical characteristics of surface water during different seasons in Shimla region of Himachal Pradesh. Journal of Applied and Natural Science, 8(1), 173–178. https://doi.org/10.31018/jans.v8i1.769
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