Evaluation of best management practices for sediment and nutrient loss control using SWAT model

Simple item page
dc.contributor.authorHimanshu, Sushil Kumar
dc.contributor.authorPandey, Ashish
dc.contributor.authorYadav, Basant
dc.contributor.authorGupta, Ankit
dc.date.accessioned2019-05-24T11:55:15Z
dc.date.available2019-05-24T11:55:15Z
dc.date.issued2019-05-08
dc.description.abstractThe intensive study of an individual watershed is required to develop effective and efficient watershed management plans. Identification of critical erosion-prone areas of the watershed and implementation of best management practices (BMPs) is necessary to control the watershed degradation by reducing the sediment and nutrient losses. The present study evaluates and recommends the BMPs in an agriculture-based Marol watershed (5092 km2) of India, using a hydrologic model, Soil and Water Assessment Tool (SWAT). After successful calibration and validation, the model simulated daily/monthly discharge and sediment were found satisfactory throughout the simulation period. The model was then applied with a calibrated set of parameters for evaluating the effectiveness of various management practices for sediment and nutrient loss control. Keeping in mind the existing agricultural practices, socio-economic aspects and geography of the study area, the management practices were focused on four crops (Maize, Rice, Soybeans and Ground nut), three fertilization levels (high, medium and low), four tillage treatments (Field cultivator, Conservation tillage, Zero tillage and Mould board plough), and two conservation operations (Contour farming and Filter strips). The simulated annual average sediment yield from the watershed was found to be 12.2 t.ha−1yr−1. The water balance analysis revealed that, the evapo-transpiration is predominant over the watershed (approximately 46.3% of the annual average rainfall). Reduction in sediment yield and nutrient loss was observed with alternate cropping treatments of Groundnut and Soybean, as compared to Paddy and Maize cultivation. Overall, based on simulated results, the field cultivator tillage practice and conservation practices viz., contour farming and filter strips, could be adopted to reduce sediment yield and nutrient losses in the critical sub-watersheds of the study area and in other watersheds with similar hydro-climatic conditions.en_UK
dc.identifier.citationHimanshu SK, Pandey A, Yadav B, Gupta A. (2019) Evaluation of best management practices for sediment and nutrient loss control using SWAT model. Soil and Tillage Research, Volume 192, September 2019, pp. 42-58en_UK
dc.identifier.issn0167-1987
dc.identifier.urihttps://doi.org/10.1016/j.still.2019.04.016
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14203
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectSWAT modelen_UK
dc.subjectSediment yielden_UK
dc.subjectNutrient lossen_UK
dc.subjectTillageen_UK
dc.subjectConservation operationsen_UK
dc.subjectBest management practices (BMPs)en_UK
dc.titleEvaluation of best management practices for sediment and nutrient loss control using SWAT modelen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Evaluation_of_best_management_practices_for_sediment-2019.pdf
Size:
2.51 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)