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1	What is water worth? : recreational benefits and increased demand following a quality improvement Kinell, Gerda January 2008 (has links) <p>This study focuses on valuation of natural resources and particularly valuation of the quality of a natural resource. The aim is to value an improvement of water quality, measured as sight depth, in the bay Himmerfjärden in the Stockholm archipelago. It is desirable to attain a value of a one metre sight depth improvement in Himmerfjärden and to analyse how a sight depth improvement affects the demand for travelling to Himmerfjärden. A condtional logit model is applied to obtain these values from survey data. The benefits of a one metre sight depth improvement in Himmerfjärden, will yield 162 260-1 599 420 SEK per year, adjusted to the price level of 2007. The estimated value depends on how travel time is treated and whether a commute variable is included or not. Furthermore will a one per cent sight depth improvement in Himmerfjärden increase the demand for travelling to Himmerfjärden with approximately 0.13-0.18 trips on a given choice occasion. These results indicate that there are values attained to the quality of a natural resource.</p> non-market valuation travel cost method water quality improvement Economics Nationalekonomi
2	What is water worth? : recreational benefits and increased demand following a quality improvement Kinell, Gerda January 2008 (has links) This study focuses on valuation of natural resources and particularly valuation of the quality of a natural resource. The aim is to value an improvement of water quality, measured as sight depth, in the bay Himmerfjärden in the Stockholm archipelago. It is desirable to attain a value of a one metre sight depth improvement in Himmerfjärden and to analyse how a sight depth improvement affects the demand for travelling to Himmerfjärden. A condtional logit model is applied to obtain these values from survey data. The benefits of a one metre sight depth improvement in Himmerfjärden, will yield 162 260-1 599 420 SEK per year, adjusted to the price level of 2007. The estimated value depends on how travel time is treated and whether a commute variable is included or not. Furthermore will a one per cent sight depth improvement in Himmerfjärden increase the demand for travelling to Himmerfjärden with approximately 0.13-0.18 trips on a given choice occasion. These results indicate that there are values attained to the quality of a natural resource. non-market valuation travel cost method water quality improvement Economics Nationalekonomi
3	An analysis of coastal restoration projects in Alabama and Mississippi Okai, Barbara Nyarkoa 08 August 2023 (has links) (PDF) This study aims to review thirteen coastal restoration projects considering the various ecosystem services provided by restoration and estimates the economic value of one of the ecosystem services of restoration. These ecosystem services include water quality improvement, fish and benthic species productivity, shoreline stabilization, oyster abundance, and marsh growth. The projects represent a set of large-scale projects within Alabama and Mississippi, with construction and monitoring costs ranging from $2.3 million to $50 million per project. To determine the economic value of one of the ecosystem services of coastal restoration projects, I used the meta-analysis method to estimate the willingness to pay (WTP) for coastal water quality improvements. The estimated function from the meta-analysis is applied to parameters specific to the study area. The WTP for improved coastal water quality, from a baseline of fishable but likely to degrade, to an improved fishing catch rate, is $203 per household annually among residents of Alabama and Mississippi. Project analysis oyster reef restoration marsh restoration living shoreline ecosystem services of restoration meta-analysis water quality improvement Agricultural and Resource Economics
4	Salinity Control Planning in the Colorado River System (invited) Maletic, John T. 20 April 1974 (has links) From the Proceedings of the 1974 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 19-20, 1974, Flagstaff, Arizona / In the lower reaches of the Colorado River, damages from the increase in salinity to U.S. water users are now estimated to be about 53 million dollars per year and will increase to about 124 million dollars per year by the year 2000 if no salinity control measures are taken. Physical, legal, economic, and institutional aspects of the salinity problem and proposed actions to mesh salinity control with a total water management plan for the basin are discussed. A scheme is presented for planning under the Colorado River water quality improvement program. Recent legislative action is also discussed which provides control plans to improve the water quality delivered to Mexico as well as upper basin water users. These efforts now under study will assure the continued, full utility of Colorado River water to U.S. users and Mexico. However, more extensive development of the basin's natural resources puts new emphasis on total resources management through improved water and land use planning to conserve a most precious western resource - water. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Colorado River Desalination Planning Mexico Water management (applied) Salinity Alternative planning Water utilization Project planning Saline water Desalination plants Water quality Water reuse Irrigation water Drainage water Costs Water sources Water policy Irrigation programs Salinity control

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