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Benefits of tropical peatland rewetting for subsidence reduction and forest regrowth: results from a large-scale restoration trial.
Hooijer, A; Vernimmen, R; Mulyadi, D; Triantomo, V; Lampela, M; Agusti, R; Page, S E; Doloksaribu, J; Setiawan, I; Suratmanto, B; Swarup, S.
Afiliación
  • Hooijer A; Data for Sustainability, 4571 AK, Axel, The Netherlands. aljosja.hooijer@dataforsustainability.com.
  • Vernimmen R; NUS Environmental Research Institute (NERI), National University of Singapore, 1 Engineering Drive, Singapore, 117411, Singapore. aljosja.hooijer@dataforsustainability.com.
  • Mulyadi D; Data for Sustainability, 4571 AK, Axel, The Netherlands.
  • Triantomo V; NUS Environmental Research Institute (NERI), National University of Singapore, 1 Engineering Drive, Singapore, 117411, Singapore.
  • Hamdani; PT Alas Rawa Khatulistiwa, Jl. M.H. Thamrin Kav. 28-30, Jakarta, 10350, Indonesia.
  • Lampela M; PT Alas Rawa Khatulistiwa, Jl. M.H. Thamrin Kav. 28-30, Jakarta, 10350, Indonesia.
  • Agusti R; PT Alas Rawa Khatulistiwa, Jl. M.H. Thamrin Kav. 28-30, Jakarta, 10350, Indonesia.
  • Page SE; Geological Survey of Finland, Vuorimiehentie 5, 02151, Espoo, Finland.
  • Doloksaribu J; NUS Environmental Research Institute (NERI), National University of Singapore, 1 Engineering Drive, Singapore, 117411, Singapore.
  • Setiawan I; Tumbuhan Asli Nusantara, BTN Korpri Blok C1 No. 96, Kawatuna, Mantikulore, Palu, 94233, Indonesia.
  • Suratmanto B; School of Geography, Geology and the Environment, University of Leicester, Leicester, LE1 7RH, UK.
  • Swarup S; Asia Pulp and Paper Group, Sinar Mas Land Plaza, Jakarta, 10350, Indonesia.
Sci Rep ; 14(1): 10721, 2024 05 10.
Article en En | MEDLINE | ID: mdl-38729962
ABSTRACT
Drainage and deforestation of tropical peat swamp forests (PSF) in Southeast Asia cause carbon emissions and biodiversity loss of global concern. Restoration efforts to mitigate these impacts usually involve peatland rewetting by blocking canals. However, there have been no studies to date of the optimal rewetting approach that will reduce carbon emission whilst also promoting PSF regeneration. Here we present results of a large-scale restoration trial in Sumatra (Indonesia), monitored for 7.5 years. Water levels in a former plantation were raised over an area of 4800 ha by constructing 257 compacted peat dams in canals. We find peat surface subsidence rates in the rewetted restoration area and adjoining PSF to be halved where water tables were raised from ~ - 0.6 m to ~ - 0.3 m, demonstrating the success of rewetting in reducing carbon emission. A total of 57 native PSF tree species were found to spontaneously grow in the most rewetted conditions and in high densities, indicating that forest regrowth is underway. Based on our findings we propose that an effective PSF restoration strategy should follow stepwise rewetting to achieve substantial carbon emission reduction alongside unassisted regrowth of PSF, thereby enabling the peat, forest and canal vegetation to establish a new nature-based ecosystem balance.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Suelo / Bosques / Conservación de los Recursos Naturales / Humedales País/Región como asunto: Asia Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Suelo / Bosques / Conservación de los Recursos Naturales / Humedales País/Región como asunto: Asia Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Reino Unido