Micheli D. P. Costa , Melissa Wartman , Peter I. Macreadie , Lawrance W. Ferns , Rhiannon L. Holden , Daniel Ierodiaconou , Kimberley J. MacDonald , Tessa K. Mazor , Rebecca Morris , Emily Nicholson , Andrew Pomeroy , Elisa A. Zavadil , Mary Young , Rohan Snartt , Paul Carnell
{"title":"海岸带湿地恢复的空间显性生态系统解释","authors":"Micheli D. P. Costa , Melissa Wartman , Peter I. Macreadie , Lawrance W. Ferns , Rhiannon L. Holden , Daniel Ierodiaconou , Kimberley J. MacDonald , Tessa K. Mazor , Rebecca Morris , Emily Nicholson , Andrew Pomeroy , Elisa A. Zavadil , Mary Young , Rohan Snartt , Paul Carnell","doi":"10.1016/j.ecoser.2023.101574","DOIUrl":null,"url":null,"abstract":"<div><p>Coastal wetlands (i.e., mangroves, saltmarshes, and seagrasses) have been recognised as an efficient natural climate solution to help mitigate and adapt to climate change. These ecosystems are also known to provide additional ecosystem services to coastal communities (e.g., fisheries and biodiversity enhancement, nutrient removal). Despite their importance to coasts and coastal communities, we lack spatially explicit information on the values of these ecosystems and the estimated return on investment from coastal management activities to rehabilitate them. Here, we aligned an environmental economic accounting framework combined with a scenario analysis to develop a set of accounts for mangroves, saltmarshes, and seagrasses across the state of Victoria (Australia) as a case study, including the following ecosystem services: commercial and recreational fisheries, carbon and nitrogen sequestration, and coastal hazard mitigation. Importantly, we assessed the current extent, condition, and ecosystem services (physical and monetary) from these coastal ecosystems and examined how they could be improved through management actions. Overall, we found that the combined benefit (i.e., nitrogen and carbon sequestration, fisheries, and coastal hazard mitigation) provided by existing mangroves, saltmarshes, and seagrasses in Victoria is approximately AUD120.9 billion per year. Considering the management scenarios included in this study, our analysis showed that levee removal plus managed retreat had the highest cost at AUD7.6 billion; however, it also provided the highest net benefit of AUD134.8 trillion after 50 years, with a 5 % discount rate. In contrast, fencing was the cheapest management action to restore mangroves and saltmarshes, delivering more than AUD140 billion after 50 years. While our results demonstrate a large return on investment if coastal wetlands are restored at large scale, the implementation of small-scale projects is still a major challenge. However, this study demonstrates that an environmental economic accounting framework combined with a scenario analysis is a powerful approach to guide the decision-making process, providing critical information on the estimated return-on-investment from restoration of mangroves and saltmarshes, with encouraging implications of the impacts of actions at local scales.</p></div>","PeriodicalId":51312,"journal":{"name":"Ecosystem Services","volume":null,"pages":null},"PeriodicalIF":6.1000,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212041623000670/pdfft?md5=a9fb29e516a4cb5e29270f1ebe27907a&pid=1-s2.0-S2212041623000670-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Spatially explicit ecosystem accounts for coastal wetland restoration\",\"authors\":\"Micheli D. P. Costa , Melissa Wartman , Peter I. Macreadie , Lawrance W. Ferns , Rhiannon L. 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Here, we aligned an environmental economic accounting framework combined with a scenario analysis to develop a set of accounts for mangroves, saltmarshes, and seagrasses across the state of Victoria (Australia) as a case study, including the following ecosystem services: commercial and recreational fisheries, carbon and nitrogen sequestration, and coastal hazard mitigation. Importantly, we assessed the current extent, condition, and ecosystem services (physical and monetary) from these coastal ecosystems and examined how they could be improved through management actions. Overall, we found that the combined benefit (i.e., nitrogen and carbon sequestration, fisheries, and coastal hazard mitigation) provided by existing mangroves, saltmarshes, and seagrasses in Victoria is approximately AUD120.9 billion per year. Considering the management scenarios included in this study, our analysis showed that levee removal plus managed retreat had the highest cost at AUD7.6 billion; however, it also provided the highest net benefit of AUD134.8 trillion after 50 years, with a 5 % discount rate. In contrast, fencing was the cheapest management action to restore mangroves and saltmarshes, delivering more than AUD140 billion after 50 years. While our results demonstrate a large return on investment if coastal wetlands are restored at large scale, the implementation of small-scale projects is still a major challenge. 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Spatially explicit ecosystem accounts for coastal wetland restoration
Coastal wetlands (i.e., mangroves, saltmarshes, and seagrasses) have been recognised as an efficient natural climate solution to help mitigate and adapt to climate change. These ecosystems are also known to provide additional ecosystem services to coastal communities (e.g., fisheries and biodiversity enhancement, nutrient removal). Despite their importance to coasts and coastal communities, we lack spatially explicit information on the values of these ecosystems and the estimated return on investment from coastal management activities to rehabilitate them. Here, we aligned an environmental economic accounting framework combined with a scenario analysis to develop a set of accounts for mangroves, saltmarshes, and seagrasses across the state of Victoria (Australia) as a case study, including the following ecosystem services: commercial and recreational fisheries, carbon and nitrogen sequestration, and coastal hazard mitigation. Importantly, we assessed the current extent, condition, and ecosystem services (physical and monetary) from these coastal ecosystems and examined how they could be improved through management actions. Overall, we found that the combined benefit (i.e., nitrogen and carbon sequestration, fisheries, and coastal hazard mitigation) provided by existing mangroves, saltmarshes, and seagrasses in Victoria is approximately AUD120.9 billion per year. Considering the management scenarios included in this study, our analysis showed that levee removal plus managed retreat had the highest cost at AUD7.6 billion; however, it also provided the highest net benefit of AUD134.8 trillion after 50 years, with a 5 % discount rate. In contrast, fencing was the cheapest management action to restore mangroves and saltmarshes, delivering more than AUD140 billion after 50 years. While our results demonstrate a large return on investment if coastal wetlands are restored at large scale, the implementation of small-scale projects is still a major challenge. However, this study demonstrates that an environmental economic accounting framework combined with a scenario analysis is a powerful approach to guide the decision-making process, providing critical information on the estimated return-on-investment from restoration of mangroves and saltmarshes, with encouraging implications of the impacts of actions at local scales.
期刊介绍:
Ecosystem Services is an international, interdisciplinary journal that is associated with the Ecosystem Services Partnership (ESP). The journal is dedicated to exploring the science, policy, and practice related to ecosystem services, which are the various ways in which ecosystems contribute to human well-being, both directly and indirectly.
Ecosystem Services contributes to the broader goal of ensuring that the benefits of ecosystems are recognized, valued, and sustainably managed for the well-being of current and future generations. The journal serves as a platform for scholars, practitioners, policymakers, and other stakeholders to share their findings and insights, fostering collaboration and innovation in the field of ecosystem services.