Chennai modeling phosphorus transport via surface runoff

Modeling Phosphorus Transport via Surface Runoff in Songkhla Lake Basin, Thailand Kitipan Kitbamroong G.Padmanabhan Penjai Sompongchaiyakul

A Lake In Distress Current and Future State ,[object Object],[object Object],[object Object],[object Object],[object Object]

Research Objective ,[object Object],[object Object]

Model Framework Model Input Mgt Tools SFA Pre-Processing Post-Processing GIS

Model Development ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Model Development ,[object Object],[object Object]

Input Preparation ,[object Object],[object Object],[object Object],[object Object],[object Object]

Model Calibration ,[object Object],[object Object],[object Object]

Scenarios modeled Scenario No. Description Strategy 1 Change in fertilizer usage ,[object Object],[object Object],[object Object],[object Object],[object Object],2 Types of fertilizer applied (N-P-K) Replacement of 8-24-24 and 13-13-21 by 15-15-15 3 Change in type of crops Replacement of horticultural crops by rubber crop

Results ,[object Object],[object Object]

Results ,[object Object],[object Object],F A B C D E Point 2004 load P (mg/kg dry soil) Scenarios 1.1 1.2 1.3 1.4 2 3 A 24.43 28.52 37.61 21.26 15.65 15.03 14.43 B 76.05 102.1 124.92 60.31 36.96 31.69 27.17 C 122.02 156.26 195.99 100.09 65.97 58.96 52.69 D 62.81 70.39 94.98 55.96 42.82 42.3 41.79 E 44.35 58.44 72.21 35.65 22.52 19.64 17.12 F 316.22 439.52 528.26 244.15 140.5 116.5 96.64 Annual Loading (tons/year) 14,195 18,796 23,164 11,372 7,129 6,245 5,491

Conclusions ,[object Object],[object Object],[object Object]

Acknowledgements ,[object Object],[object Object],[object Object],[object Object]

Chennai modeling phosphorus transport via surface runoff

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Chennai modeling phosphorus transport via surface runoff