De Lange, Willem JNahman, AntonTheron, A2009-10-122009-10-122009-05De Lange, W, Nahman, A and Theron, A. 2009. External costs of sand mining in rivers: evidence from South Africa. Environmental Resource Economics Conference. Cape Town, South Africa, 21 - 22 May 2009. pp 1-19http://hdl.handle.net/10204/3643Environmental Resource Economics Conference. Cape Town, South Africa, 21 - 22 May 2009The valuation of estuarine goods and services serves to highlight the degree to which estuaries contribute to human well-being and to show that the social cost of activities which contribute to estuary degradation could be greater than the private gains. Researchers applied this notion to a list of estuaries in the eThekwini municipal area of South Africa to estimate private gains and social costs of sand mining enterprises. Sand mining in rivers is an important source of raw material for the construction industry, but impacts on sediment yield in estuaries, and therefore on estuarine functioning and service provision. Researchers confirmed the presence of negative externalities in the sand mining industry that are not reflected in the market price of sand, implying that the sand resource is currently being over-exploited, to the detriment of estuarine ecological functioning and long term social well-being. These external costs are estimated at the estuary level for the study area. An assessment of the viability of alternative sand supply sources to serve the growing demand in the construction industry is consequently recommended.enSand miningEstuarine servicesEstuariesSocial costEnvironmental Resource Economics ConferenceRiversConstruction industryConference PresentationDe Lange, W. J., Nahman, A., & Theron, A. (2009). External costs of sand mining in rivers: evidence from South Africa. http://hdl.handle.net/10204/3643De Lange, Willem J, Anton Nahman, and A Theron. "External costs of sand mining in rivers: evidence from South Africa." (2009): http://hdl.handle.net/10204/3643De Lange WJ, Nahman A, Theron A, External costs of sand mining in rivers: evidence from South Africa; 2009. http://hdl.handle.net/10204/3643 .TY - Conference Presentation AU - De Lange, Willem J AU - Nahman, Anton AU - Theron, A AB - The valuation of estuarine goods and services serves to highlight the degree to which estuaries contribute to human well-being and to show that the social cost of activities which contribute to estuary degradation could be greater than the private gains. Researchers applied this notion to a list of estuaries in the eThekwini municipal area of South Africa to estimate private gains and social costs of sand mining enterprises. Sand mining in rivers is an important source of raw material for the construction industry, but impacts on sediment yield in estuaries, and therefore on estuarine functioning and service provision. Researchers confirmed the presence of negative externalities in the sand mining industry that are not reflected in the market price of sand, implying that the sand resource is currently being over-exploited, to the detriment of estuarine ecological functioning and long term social well-being. These external costs are estimated at the estuary level for the study area. An assessment of the viability of alternative sand supply sources to serve the growing demand in the construction industry is consequently recommended. DA - 2009-05 DB - ResearchSpace DP - CSIR KW - Sand mining KW - Estuarine services KW - Estuaries KW - Social cost KW - Environmental Resource Economics Conference KW - Rivers KW - Construction industry LK - https://researchspace.csir.co.za PY - 2009 T1 - External costs of sand mining in rivers: evidence from South Africa TI - External costs of sand mining in rivers: evidence from South Africa UR - http://hdl.handle.net/10204/3643 ER -