Soil Organic Carbon Stocks across Hydrologic Schemes in Freshwater Wetlands of the Chi River Basin, Northeast Thailand

Chanlabut, Utain; Gomontean, Bhuvadol; Srifa, Akeapot

doi:10.1007/s13157-019-01181-8

Cited by 8 publications

(13 citation statements)

References 62 publications

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“…[ 48 ] C stock and flood mitigation several field visits/laboratory analysis/modelling Chanlabut U et al . [ 49 ] C stock one field visit/laboratory analysis Wood SLR et al . [ 50 ] food and timber one field visit/interview …”

Section: Resultsmentioning

confidence: 99%

Systematic review of soil ecosystem services in tropical regions

et al. 2021

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Soil ecosystem service (SES) approaches evidence the importance of soil for human well-being, contribute to improving dialogue between science and decision-making and encourage the translation of scientific results into public policies. Herein, through systematic review, we assess the state of the art of SES approaches in tropical regions. Through this review, 41 publications were identified; while most of these studies considered SES, a lack of a consistent framework to define SES was apparent. Most studies measured soil natural capital and processes, while only three studies undertook monetary valuation. Although the number of publications increased (from 1 to 41), between 2001 and 2019, the total number of publications for tropical regions is still small. Countries with the largest number of publications were Brazil ( n = 8), Colombia ( n = 6) and Mexico ( n = 4). This observation emphasizes an important knowledge gap pertaining to SES approaches and their link to tropical regions. With global momentum behind SES approaches, there is an opportunity to integrate SES approaches into policy and practice in tropical regions. The use of SES evaluation tools in tropical regions could transform how land use decisions are informed, mitigating soil degradation and protecting the ecosystems that soil underpins.

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Section: Resultsmentioning

confidence: 99%

Systematic review of soil ecosystem services in tropical regions

et al. 2021

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“…There are 25 river basins in Thailand (254 sub-basins), among which the two largest rivers are the Chao Phraya and Mekong [ 65 ]. The Mekong runs from China through Myanmar and Laos, and its tributaries are home to some of the world’s most diverse species of freshwater fishes, including the Tor species [ 35 , 52 , 66 , 67 ].…”

Section: Geographical Distribution Of Tor Species In the Se Asian Regionmentioning

confidence: 99%

A Current Update on the Distribution, Morphological Features, and Genetic Identity of the Southeast Asian Mahseers, Tor Species

Jaafar

Na-Nakorn

Srisapoome

et al. 2021

Biology

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The king of rivers or mahseer comprises three genera: Tor, Neolissochilus, and Naziritor, under the Cyprinidae family. The Tor genus has been classified as the true mahseer due to the presence of a median lobe among the three genera. The Tor species are widely distributed across Southeast (SE) Asia, and 13 Tor species have been reported previously: Tor ater, Tor dongnaiensis, Tor douronensis, Tor laterivittatus, Tor mosal, Tor mekongensis, Tor putitora, Tor sinensis, Tor soro, Tor tambra, Tor tambroides, Tor tor and Tor yingjiangensis. However, the exact number of valid Tor species remains debatable. Different and unstandardized approaches of applying genetic markers in taxonomic identification and morphology variation within the same species have further widened the gap and ameliorated the instability of Tor species taxonomy. Therefore, synchronized and strategized research among Tor species researchers is urgently required to improve and fill the knowledge gap. This review is a current update of SE Asia’s Tor species, outlining their distribution, morphology, and genetic identification. In addition, the present review proposes that there are ten valid Tor species in the SE Asian region. This list will serve as a template and standard to improve the taxonomy of the SE Asian Tor species, which could serve as a basis to open new directions in Tor research.

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“…Our results demonstrate that mean water level can be used as a continuous indicator of hydrologic conditions to examine linear and nonlinear trends in soil characteristics across wetlands, building on prior studies that study SOC across discrete topographic categories (e.g., Chanlabut et al 2020;LaCroix et al 2019;Pearse et al 2018;Webster et al 2011;Webster et al 2008). Low relief, wet forests are ubiquitous throughout the eastern U.S., but given their complexity they have typically been neglected in forest C models (e.g., Hurtt et al 2019) and may be poorly represented by upland SOC models (Trettin et al 2001).…”

Section: Soc Changes Across the Gradient From Basin Edge-uplandmentioning

confidence: 64%

“…Seasonally saturated wetlands play an important role in SOC storage and stabilization (Pearse et al 2018;Chanlabut et al 2020), yet the mechanisms underpinning these processes are understudied. Here we show that SOC in and around seasonally saturated wetlands may be stabilized during dry periods by physical protection within macroaggregates and, to a lesser extent, by organo-mineral associations with Fe.…”

Section: Discussionmentioning

confidence: 99%

“…As future climate scenarios predict changes in wetland wet and dry cycles, understanding the mechanisms by which SOC is stabilized in wetland soils is critical for predicting the vulnerability of SOC to future change. LaCroix et al 2019;Chanlabut et al 2020). We hypothesized that both aggregate-and Fe-associated C would be greatest in the hydrologically dynamic transition zone.…”

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confidence: 99%

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Physical protection in aggregates and organo-mineral associations contribute to carbon stabilization at the transition zone of seasonally saturated wetlands

Kottkamp

Jones

Palmer

et al. 2021

Preprint

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Wetlands store significant soil organic carbon (SOC) globally, yet this SOC is sensitive to climate and land use change. Seasonally saturated wetlands experience fluctuating hydrologic conditions that may promote the physicochemical mechanisms known to control SOC stabilization in upland soils; these wetlands are therefore likely to be important for SOC storage at the landscape-scale. We investigated the role of physicochemical mechanisms of SOC stabilization in five seasonally saturated wetlands to test the hypothesis that these mechanisms are present, particularly at the transition zone between wetland and upland where saturation in the upper soil profile is most variable. At each wetland, we monitored water level and collected soil samples at five points along a transect from frequently saturated basin edge to rarely saturated upland. We quantified physical protection of SOC in aggregates and organo-mineral associations in mineral horizons to 0.5 m depth. As expected, SOC decreased from basin edge to upland. In the basin edge and transition zone, the majority of SOC was physically protected in macroaggregates. By contrast, overall organo-mineral associations were low, with the highest Fe concentrations (5 mg Fe g− 1 soil) in the transition zone. While both stabilization mechanisms were present in the transition zone, physical protection is more likely to be a dominant mechanism of SOC stabilization in seasonally saturated wetlands. As future climate scenarios predict changes in wetland wet and dry cycles, understanding the mechanisms by which SOC is stabilized in wetland soils is critical for predicting the vulnerability of SOC to future change.

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Soil Organic Carbon Stocks across Hydrologic Schemes in Freshwater Wetlands of the Chi River Basin, Northeast Thailand

Cited by 8 publications

References 62 publications

Systematic review of soil ecosystem services in tropical regions

Systematic review of soil ecosystem services in tropical regions

A Current Update on the Distribution, Morphological Features, and Genetic Identity of the Southeast Asian Mahseers, Tor Species

Physical protection in aggregates and organo-mineral associations contribute to carbon stabilization at the transition zone of seasonally saturated wetlands

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