Brief review on climate change and tropical peatlands

Leng, Lee Yit; Ahmed, Osumanu Haruna; Jalloh, Mohamadu Boyie

doi:10.1016/j.gsf.2017.12.018

Cited by 89 publications

(69 citation statements)

References 77 publications

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“…Assuming that this trend is applicable throughout the study area, we can hypothesize that both the surface and underground (water table) conditions are wet in these areas. Therefore, groundwater conditions can potentially be determined by monitoring peat using a thermal camera, which can provide important spatial information that relates to the GHG flux from peat [10,11,18]. However, for a more in-depth analysis, additional belowground data should be collected, including the moisture content and the groundwater depth below peatland.…”

Section: Pca Components Relating To Topographic Variablesmentioning

confidence: 99%

“…Nevertheless, spatial analyses of temperature information related to the oxidation of the peat are rare. Notably, temperature is an important factor that can lower groundwater levels and enhance the oxidative breakdown of tropical peats as the temperature increases [18]. Additionally, such factors influence the oxidation of tropical peats by microorganisms, root respiration, the soil water content, and so forth [10,11,18].…”

Section: Introductionmentioning

confidence: 99%

“…Notably, temperature is an important factor that can lower groundwater levels and enhance the oxidative breakdown of tropical peats as the temperature increases [18]. Additionally, such factors influence the oxidation of tropical peats by microorganisms, root respiration, the soil water content, and so forth [10,11,18]. Thus, dynamic fluctuations in the temperature of tropical peats can have a positive feedback on the GHG flux and accelerate the effects on climate change [19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Visualizing the Spatiotemporal Trends of Thermal Characteristics in a Peatland Plantation Forest in Indonesia: Pilot Test Using Unmanned Aerial Systems (UASs)

Iizuka

Watanabe

Kato³

et al. 2018

Remote Sensing

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The high demand for unmanned aerial systems (UASs) reflects the notable impact that these systems have had on the remote sensing field in recent years. Such systems can be used to discover new findings and develop strategic plans in related scientific fields. In this work, a case study is performed to describe a novel approach that uses a UAS with two different sensors and assesses the possibility of monitoring peatland in a small area of a plantation forest in West Kalimantan, Indonesia. First, a multicopter drone with an onboard camera was used to collect aerial images of the study area. The structure from motion (SfM) method was implemented to generate a mosaic image. A digital surface model (DSM) and digital terrain model (DTM) were used to compute a canopy height model (CHM) and explore the vegetation height. Second, a multicopter drone combined with a thermal infrared camera (Zenmuse-XT) was utilized to collect both spatial and temporal thermal data from the study area. The temperature is an important factor that controls the oxidation of tropical peats by microorganisms, root respiration, the soil water content, and so forth. In turn, these processes can alter the greenhouse gas (GHG) flux in the area. Using principal component analysis (PCA), the thermal data were processed to visualize the thermal characteristics of the study site, and the PCA successfully extracted different feature areas. The trends in the thermal information clearly show the differences among land cover types, and the heating and cooling of the peat varies throughout the study area. This study shows the potential for using UAS thermal remote sensing to interpret the characteristics of thermal trends in peatland environments, and the proposed method can be used to guide strategical approaches for monitoring the peatlands in Indonesia.

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Section: Pca Components Relating To Topographic Variablesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Visualizing the Spatiotemporal Trends of Thermal Characteristics in a Peatland Plantation Forest in Indonesia: Pilot Test Using Unmanned Aerial Systems (UASs)

Iizuka

Watanabe

Kato³

et al. 2018

Remote Sensing

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“…The peatlands are one of the most important ecosystems, as they contains around 40% of soil carbon even if it is estimated that the peatlands cover only around 3% of the terrestrial area [3]. Because of their big biodiversity, rich carbon content, and sensitivity to the environmental changes, peatlands have attracted a lot of attention of climate scientist [4][5][6]. The peat accumulation in peatlands depends on several biotic and abiotic factors; biotic factors include: the presence of vegetation and microorganism types, its physiological status, and stage of development [7], whereas abiotic factors include pH, water table level, precipitation, temperature etc.…”

Section: Introductionmentioning

confidence: 99%

“…An increase in temperature may lead to decrease in ground water level and enhance oxidative breakdown of the peat [11]. The increase in temperature may also kill microorganisms, impact plant physiology, alters nutrients level, and influence peat formation [5], whereas change in precipitation is also known to decrease water table level, plant physiology, nutrient level, and peat accumulation [5,12]. Thus, the precipitation and global temperature are important parameters which may change in future climatic condition and may influence the peatlands.…”

Section: Introductionmentioning

confidence: 99%

Monitoring the Impact of Environmental Manipulation on Peatland Surface by Simple Remote Sensing Indices

et al. 2018

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The behaviour of nature depends on the different components of climates. Among these, temperature and rainfall are two of the most important components which are known to change plant productivity. Peatlands are among the most valuable ecosystems on the Earth, which is due to its high biodiversity, huge soil carbon storage, and its sensitivity to different environmental factors. With the rapid growth in industrialization, the climate change is becoming a big concern. Therefore, this work is focused on the behaviour of Sphagnum peatland in Poland, subjected to environment manipulation. Here it has been shown how a simple reflectance based technique can be used to assess the impact of climate change on peatland. The experimental setup consists of four plots with two kind of manipulations (control, warming, reduced precipitation, and a combination of warming and reduced precipitation). Reflectance data were measured twice in August 2017 under a clear sky. Vegetation indices (VIs) such as Normalized Difference Vegetation Index (NDVI), Photochemical Reflectance Index (PRI), near-infrared reflectance of vegetation (NIRv), MERIS terrestrial chlorophyll index (MTCI), Green chlorophyll index (CIgreen), Simple Ration (SR), and Water Band Index (WBI) were calculated to trace the impact of environmental manipulation on the plant community. Leaf Area Index of vascular plants was also measured for the purpose to correlate it with different VIs. The observation predicts that the global warming of 1°C may cause a significant change in peatland behaviour which can be tracked and monitored by simple remote sensing indices.

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Carbon dioxide emissions in relation to water table in a restored fen

Wille,

Lenhart,

Kolka

2023

Agricultural & Env Letters

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Many peatlands have been drained for anthropogenic purposes, and there is high interest in restoring them for their carbon storage ability and critical habitat. Peatlands hold a disproportionate amount of global soil carbon, making peatland restoration a promising approach for mitigating carbon emissions. In this study, site factors were investigated that affect peat carbon dioxide flux at Cold Spring fen in Minnesota, which is undergoing restoration. Peat carbon dioxide flux and water table depth were monitored throughout the growing season at two locations previously disturbed to different degrees by row‐crop agriculture. Flux ranged from 0.55 to 12.71 µmol m−2 s−1 and was highest during peak growing season. Lower flux corresponded to elevated water table conditions. The more disturbed location often had lower flux, indicating success in hydrological restoration. The water table is an important factor in peatland restoration, and water table management should be considered to maximize carbon sequestration.

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Brief review on climate change and tropical peatlands

Cited by 89 publications

References 77 publications

Visualizing the Spatiotemporal Trends of Thermal Characteristics in a Peatland Plantation Forest in Indonesia: Pilot Test Using Unmanned Aerial Systems (UASs)

Visualizing the Spatiotemporal Trends of Thermal Characteristics in a Peatland Plantation Forest in Indonesia: Pilot Test Using Unmanned Aerial Systems (UASs)

Monitoring the Impact of Environmental Manipulation on Peatland Surface by Simple Remote Sensing Indices

Carbon dioxide emissions in relation to water table in a restored fen

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