Authors
M. Rajasekhar, K Ajaykumar, Sudarsana Raju G , Vijay Bhagat
Publication date
2021/9/4
Journal
Environmental Challenges
Volume
5
Issue
2021
Publisher
ScienceDirect
Description
The present study integrates various decision-making methods viz. Fuzzy Logic (FL), Frequency Ratio (FR), Analytical Hierarchy Process (AHP) to delineate the artificial groundwater recharge zones (AGRZs) in semi-arid region of south India. Eight criterions used in this process, including lithology, soil types, lineament density (LD), drainage density (DD), vadose zone (VZ), rainfall, land use/ land cover (LULC), and slope. All of these criteria and their sub-criteria used to derive weights for different thematic layers and combined using a geospatial method to classify AGRZs. The resultant map was categorised into five classes: very poor, poor, moderate, good and very good. The FL, AHP, FR, and integrated approaches were validated against groundwater fluctuation data using receiver operating characteristic (ROC) and field AUC [Area Under the Curve] approaches, showed an accuracy of 72%, 76% and 78% and 82 …
Total citations
Scholar articles
M Rajasekhar, K Ajaykumar, V Bhagat - Environmental Challenges, 2021