Developing a framework to quantify potential Sea level rise-driven environmental losses: A case study in Semarang coastal area, Indonesia. Issue 89 (November 2018)

• Record Type: Journal Article
• Authors: Mehvar, Seyedabdolhossein; Filatova, Tatiana; Syukri, Ifdlol; Dastgheib, Ali; Ranasinghe, Roshanka
• Is Part Of: Environmental science & policy. Issue 89(2018)
• Page Start: 216
• Page End: 230
• Publication Date: 2018-11
• Subjects: Climate change -- Semarang -- Coastal ecosystems -- Environmental damage -- Economic valuation; Environmental policy -- Periodicals; Environmental sciences -- Periodicals; Environnement -- Politique gouvernementale -- Périodiques; Sciences de l'environnement -- Périodiques; Environmental policy; Environmental sciences; Periodicals; Electronic journals; 363.70561
• DOI: 10.1016/j.envsci.2018.06.019
• Languages: English
• ISSNs: 1462-9011

Abstract

Highlights: A coherent three-step framework is presented to quantify the potential Sea level rise-driven environmental losses by 2100 in Semarang coastal area. Two inundation scenarios are considered due to relative sea level rise of 4 m (scenario A), and 1.10 m (scenario B). Scenario A will result in 90%, 25%, 50%, and 70% decrease in the present-day value of coastal ecosystem services as art, fishery, amenity and recreation, respectively. Scenario B will cause 40% of the losses estimated for the Scenario A. Abstract: Climate change triggers major alterations to coastal zones worldwide. Quantification of these adverse impacts to coastal ecosystems is often done on a coarse scale of global regions. Consistent local scale estimates of physical impacts on ecosystems and monetary assessment of associated losses are scarce, especially in developing countries. With aim of facilitating such assessment, which is increasingly required, here we propose a coherent three-step framework and subsequently apply it to quantify potential sea level rise-driven alterations in the monetary value of ecosystem services in the coastal area of Semarang in Indonesia. Within this framework, we (1) quantify the present value of coastal ecosystem services by using economic valuation techniques; (2) identify the potential impacts of relative sea level rise (RSLR)-induced inundation on ecosystem services (for the year 2100 inundation scenarios); and (3) monetize these impacts by developing a novel scenario-based approach. The results show that full inundation (scenario A with 4 m RSLR) poses a median loss of 90% (US$ 2.8 – 3.5) and 25% (US$ 90 – 113) to the present art and fishery values per hectare, while amenity service is expected to lose upto 50% (US$ 3700 – 5400) of its present value. Additionally, recreation value of the coastal ecosystems in three selected sites (Marina and Maron beaches, and Plumbon estuary) will decrease by 70% (US$ 15, 460 – 19, 820) per hectare. However, in scenario B (RSLR of 1.1 m) with a 50% inundated area, these losses are estimated approximately 40% less than for scenario A. It is expected that researchers and policy makers may apply this approach in their areas of interest to gain a better understanding of the likely costs of sea level rise-driven environmental damages along coasts, ultimately contributing to the sustainable management of coastal environment in Indonesia and possibly in other developing countries.