Greenhouse gas fluxes of different land uses in mangrove ecosystem of East Kalimantan, Indonesia

IF 3.9 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Carbon Balance and Management Pub Date : 2024-06-01 DOI:10.1186/s13021-024-00263-3

Virni Budi Arifanti, Randi Ade Candra, Chandra Agung Septiadi Putra, Adibtya Asyhari, Adi Gangga, Rasis Putra Ritonga, Muhammad Ilman, Aji W. Anggoro, Nisa Novita

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Abstract

Background

Mangrove ecosystems exhibit significant carbon storage and sequestration. Its capacity to store and sequester significant amounts of carbon makes this ecosystem very important for climate change mitigation. Indonesia, owing to the largest mangrove cover in the world, has approximately 3.14 PgC stored in the mangroves, or about 33% of all carbon stored in coastal ecosystems globally. Unfortunately, our comprehensive understanding of carbon flux is hampered by the incomplete repertoire of field measurement data, especially from mangrove ecosystem-rich regions such as Indonesia and Asia Pacific. This study fills the gap in greenhouse gases (GHGs) flux studies in mangrove ecosystems in Indonesia by quantifying the soil CO₂ and CH₄ fluxes for different land use types in mangrove ecosystems, i.e., secondary mangrove (SM), restored mangrove (RM), pond embankment (PE) and active aquaculture pond (AP). Environmental parameters such as soil pore salinity, soil pore water pH, soil temperature, air temperature, air humidity and rainfall are also measured.

Results

GHG fluxes characteristics varied between land use types and ecological conditions. Secondary mangrove and exposed pond embankment are potential GHG flux sources (68.9 ± 7.0 and 58.5 ± 6.2 MgCO₂e ha^− 1 yr^− 1, respectively). Aquaculture pond exhibits the lowest GHG fluxes among other land use types due to constant inundation that serve as a barrier for the release of GHG fluxes to the atmosphere. We found weak relationships between soil CO₂ and CH₄ fluxes and environmental parameters.

Conclusions

The data and information on GHG fluxes from different land use types in the mangrove ecosystem will be of importance to accurately assess the potential of the mangrove ecosystem to sequester and emit GHGs. This will support the GHG emission reduction target and strategy that had been set up by the Indonesian Government in its Nationally Determined Contributions (NDC) and Indonesia’s 2030 Forest and Other Land Use (FOLU) Net Sink.

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印度尼西亚东加里曼丹红树林生态系统不同土地利用的温室气体通量。

背景：红树林生态系统具有显著的碳储存和固碳能力。红树林储存和固存大量碳的能力使其成为减缓气候变化的重要生态系统。印度尼西亚是世界上红树林覆盖面积最大的国家，红树林中储存了约 3.14 PgC 的碳，约占全球沿海生态系统碳储存总量的 33%。遗憾的是，我们对碳通量的全面了解受到野外测量数据不完整的阻碍，尤其是印尼和亚太地区等红树林生态系统丰富的地区。本研究通过量化红树林生态系统中不同土地利用类型（即次生红树林（SM）、恢复红树林（RM）、池塘堤坝（PE）和活性水产养殖池塘（AP））的土壤二氧化碳和甲烷通量，填补了印尼红树林生态系统温室气体（GHGs）通量研究的空白。此外，还测量了土壤孔隙盐度、土壤孔隙水 pH 值、土壤温度、空气温度、空气湿度和降雨量等环境参数：结果：不同土地利用类型和生态条件下的温室气体通量特征各不相同。次生红树林和裸露的池塘堤坝是潜在的温室气体通量源（分别为 68.9 ± 7.0 和 58.5 ± 6.2 MgCO2e ha- 1 yr- 1）。在其他土地利用类型中，水产养殖池塘的温室气体通量最低，这是因为池塘不断被淹没，阻碍了温室气体通量释放到大气中。我们发现土壤二氧化碳和甲烷通量与环境参数之间的关系较弱：红树林生态系统中不同土地利用类型的温室气体通量数据和信息对于准确评估红树林生态系统固存和排放温室气体的潜力非常重要。这将有助于印度尼西亚政府在其国家减排目标（NDC）和印度尼西亚 2030 年森林和其他土地利用（FOLU）净汇中制定温室气体减排目标和战略。

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来源期刊

Carbon Balance and Management Environmental Science-Management, Monitoring, Policy and Law

CiteScore

7.60

自引率

0.00%

发文量

审稿时长

14 weeks

期刊介绍： Carbon Balance and Management is an open access, peer-reviewed online journal that encompasses all aspects of research aimed at developing a comprehensive policy relevant to the understanding of the global carbon cycle. The global carbon cycle involves important couplings between climate, atmospheric CO2 and the terrestrial and oceanic biospheres. The current transformation of the carbon cycle due to changes in climate and atmospheric composition is widely recognized as potentially dangerous for the biosphere and for the well-being of humankind, and therefore monitoring, understanding and predicting the evolution of the carbon cycle in the context of the whole biosphere (both terrestrial and marine) is a challenge to the scientific community. This demands interdisciplinary research and new approaches for studying geographical and temporal distributions of carbon pools and fluxes, control and feedback mechanisms of the carbon-climate system, points of intervention and windows of opportunity for managing the carbon-climate-human system. Carbon Balance and Management is a medium for researchers in the field to convey the results of their research across disciplinary boundaries. Through this dissemination of research, the journal aims to support the work of the Intergovernmental Panel for Climate Change (IPCC) and to provide governmental and non-governmental organizations with instantaneous access to continually emerging knowledge, including paradigm shifts and consensual views.