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Combining hydrologic modeling and ec...

Nguyen, Tanh T. N.

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Combining hydrologic modeling and economic factors to optimize water management for a Vietnamese wetland system.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Combining hydrologic modeling and economic factors to optimize water management for a Vietnamese wetland system./
Author:	Nguyen, Tanh T. N.
Description:	140 p.
Notes:	Source: Dissertation Abstracts International, Volume: 76-12(E), Section: B.
Contained By:	Dissertation Abstracts International76-12B(E).
Subject:	Environmental engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3716923
ISBN:	9781321962185

Combining hydrologic modeling and economic factors to optimize water management for a Vietnamese wetland system.
Nguyen, Tanh T. N.

Combining hydrologic modeling and economic factors to optimize water management for a Vietnamese wetland system. - 140 p.

Source: Dissertation Abstracts International, Volume: 76-12(E), Section: B.

Thesis (Ph.D.)--University of Florida, 2014.

Responding to the demand of a comprehensive coupling framework for scenario analysis regarding multiple objectives for wetland, we developed and tested our coupling framework for applicability using a case study in the Tram Chim National Park applying full water control (FC) using water gates (zones A1 and A2) and more-natural water control (NC) using berms (zones A4 and A5). The study objective is identifying scenarios meeting double optimization criteria including hydrologic optimization (monthly water elevation as targets suggested by the Mekong Wetland Biodiversity Programme) and economic optimization (net benefits of wetland management is equal or greater than 0). Methods consisted of (1) development of a hydro-economic model (HEMTC) using R and Java languages, which coupled water balance model (HMTC) (applying data screening with spectral analysis and filling-in approach and using goodness-of-fit indicators and a categorical comparison for model evaluation) and an economic model EMTC (including decision [analytic hierarchy process], tourism [travel costs and contingent valuation with Poisson regression], and fish exploitation [contingent valuation and consumption approach]); (2) multi-criteria decision analysis (MCDA) for scenario analysis; and (3) anneal scheduling for scenario optimization. HEMTC simulation indicated that water elevation in zone A1 met the targets but that other zones did not. Economic benefits of wetland services for all zones were US$159/year/person for fish exploitation and US$11/person of consumer surplus for tourism. Net benefit for zone A1 was the highest among wetland zones. Scenario analysis using hydro-economic coupling simulation showed that water management meeting double optimization criteria required: no change of water control system and a fishing permission with 64 fishermen for zone A1; additionally opening water gate C5 in February and May and allowing 171 fishermen for fish exploitation for zone A2; replacement of levees and 142 fishermen permitted for fishing for zone A4; and replacement of levees combining with 109 fishermen allowed for fish exploitation for zone A5. This study suggested a consideration at zone level for hydrologic optimization while a Park level was selected for economic optimization. This study showed the applicability of our coupling framework for multiple objective studies, where four wetland zones were optimized in regards to hydrology and economics.

ISBN: 9781321962185Subjects--Topical Terms:

548583
Environmental engineering.

Combining hydrologic modeling and economic factors to optimize water management for a Vietnamese wetland system.
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100 1 $a Nguyen, Tanh T. N. $3 3188784
245 1 0 $a Combining hydrologic modeling and economic factors to optimize water management for a Vietnamese wetland system.
300 $a 140 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-12(E), Section: B.
500 $a Adviser: Kati W. Migliaccio.
502 $a Thesis (Ph.D.)--University of Florida, 2014.
520 $a Responding to the demand of a comprehensive coupling framework for scenario analysis regarding multiple objectives for wetland, we developed and tested our coupling framework for applicability using a case study in the Tram Chim National Park applying full water control (FC) using water gates (zones A1 and A2) and more-natural water control (NC) using berms (zones A4 and A5). The study objective is identifying scenarios meeting double optimization criteria including hydrologic optimization (monthly water elevation as targets suggested by the Mekong Wetland Biodiversity Programme) and economic optimization (net benefits of wetland management is equal or greater than 0). Methods consisted of (1) development of a hydro-economic model (HEMTC) using R and Java languages, which coupled water balance model (HMTC) (applying data screening with spectral analysis and filling-in approach and using goodness-of-fit indicators and a categorical comparison for model evaluation) and an economic model EMTC (including decision [analytic hierarchy process], tourism [travel costs and contingent valuation with Poisson regression], and fish exploitation [contingent valuation and consumption approach]); (2) multi-criteria decision analysis (MCDA) for scenario analysis; and (3) anneal scheduling for scenario optimization. HEMTC simulation indicated that water elevation in zone A1 met the targets but that other zones did not. Economic benefits of wetland services for all zones were US$159/year/person for fish exploitation and US$11/person of consumer surplus for tourism. Net benefit for zone A1 was the highest among wetland zones. Scenario analysis using hydro-economic coupling simulation showed that water management meeting double optimization criteria required: no change of water control system and a fishing permission with 64 fishermen for zone A1; additionally opening water gate C5 in February and May and allowing 171 fishermen for fish exploitation for zone A2; replacement of levees and 142 fishermen permitted for fishing for zone A4; and replacement of levees combining with 109 fishermen allowed for fish exploitation for zone A5. This study suggested a consideration at zone level for hydrologic optimization while a Park level was selected for economic optimization. This study showed the applicability of our coupling framework for multiple objective studies, where four wetland zones were optimized in regards to hydrology and economics.
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