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The role of economic, policy, and ecological factors in estimating the value of carbon stocks in Everglades mangrove forests, South Florida, USA

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  • Jerath, Meenakshi
  • Bhat, Mahadev
  • Rivera-Monroy, Victor H.
  • Castañeda-Moya, Edward
  • Simard, Marc
  • Twilley, Robert R.

Abstract

Old growth mangroves in existing protected areas store more carbon than restored forests or plantations. Carbon storage in such forests has economic value independent of additionality, offering opportunities for policy makers to ensure their maintenance, and inclusion in climate change mitigation strategies. Mangrove forests of the Everglades National Park (ENP), South Florida, though protected, face external stressors such as hydrological alterations because of flooding control structures and agriculture impacts and saltwater intrusion as a result of increasing sea level rise. Moreover, decreased funding of Everglades’ restoration activities following the recent economic crisis (beginning 2008) threatens the restoration of the Greater Everglades including mangrove dominated coastal regions. We evaluate several economic and ecological challenges confronting the economic valuation of total (vegetation plus soil) organic carbon (TOC) storage in the ENP mangroves. Estimated TOC storage for this forested wetland ranges from 70 to 537 Mg C/ha and is higher than values reported for tropical, boreal, and temperate forests. We calculate the average abatement cost of C specific for ENP mangroves to value the TOC from $2–$3.4 billion; estimated unit area values are $13,859/ha–$23,728/ha. The valuation of the stored/legacy carbon is based on the: 1) ecogeomorphic attributes, 2) regional socio-economic milieu, and 3) status of the ENP mangroves as a protected area. The assessment of C storage estimates and its economic value can change public perception about how this regulating ecosystem service of ENP mangrove wetlands (144,447ha) supports human well-being and numerous economic activities. This perception, in turn, can contribute to future policy changes such that the ENP mangroves, the largest mangrove area in the continental USA, can be included as a potential alternative in climate change mitigation strategies.

Suggested Citation

  • Jerath, Meenakshi & Bhat, Mahadev & Rivera-Monroy, Victor H. & Castañeda-Moya, Edward & Simard, Marc & Twilley, Robert R., 2016. "The role of economic, policy, and ecological factors in estimating the value of carbon stocks in Everglades mangrove forests, South Florida, USA," Environmental Science & Policy, Elsevier, vol. 66(C), pages 160-169.
    • Handle: RePEc:eee:enscpo:v:66:y:2016:i:c:p:160-169
    DOI: 10.1016/j.envsci.2016.09.005
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    Cited by:

    1. Zhao, Xiaochen & Rivera-Monroy, Victor H. & Wang, Hongqing & Xue, Z George & Tsai, Cheng-Feng & Willson, Clinton S. & Castañeda-Moya, Edward & Twilley, Robert R., 2020. "Modeling soil porewater salinity in mangrove forests (Everglades, Florida, USA) impacted by hydrological restoration and a warming climate," Ecological Modelling, Elsevier, vol. 436(C).
    2. Hernández-Blanco, Marcello & Costanza, Robert & Cifuentes-Jara, Miguel, 2021. "Economic valuation of the ecosystem services provided by the mangroves of the Gulf of Nicoya using a hybrid methodology," Ecosystem Services, Elsevier, vol. 49(C).
    3. González-García, Alberto & Arias, Marina & García-Tiscar, Susana & Alcorlo, Paloma & Santos-Martín, Fernando, 2022. "National blue carbon assessment in Spain using InVEST: Current state and future perspectives," Ecosystem Services, Elsevier, vol. 53(C).

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