Catchment vegetation and erosion controlled soil carbon cycling in south-eastern Australia during the last two glacial-interglacial cycles

Dosseto, Anthony; Forbes, Matt; Cadd, Haidee; Short, Julia; Sherborne-Higgins, Bryce; Constantine, M.; Tyler, Jon; Tibby, John; Marx, Samuel K.; Dodson, John; Mooney, Scott; Cohen, Tim J

doi:10.1016/j.gloplacha.2022.103922

Cited by 8 publications

(4 citation statements)

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“…The finding implies that increased terrestrial biomass production on geological time scales has the potential to increase atmospheric carbon sequestration and permanent carbon burial in Australian landscapes, which was previously discussed for annual to decadal timescales from modern observations (Chappell et al., 2015; Cleverly et al., 2016; Poulter et al., 2014). However, more detailed research on the interplay between vegetation cover, catchment erosion, and final carbon burial is needed to validate the underlying chemical and physical processes at geological timescales (Francke et al., 2022).…”

Section: Discussionmentioning

confidence: 99%

“…Various analytical methods have been used to estimate the authigenic versus allogenic origin of sediment organic matter, including the concentrations and ratios of total organic carbon and total nitrogen (TOC, TN and TOC/TN; Meyers & Teranes, 2002), the stable isotope ratios of 13 C/ 12 C and 15 N/ 14 N (δ 13 C, δ 15 N; e.g., Leng et al, 2005), the concentration, molecular structure and isotope composition of specific organic compounds (n-alkanes; glycerol dialkyl glycerol tetraethers, e.g., Holtvoeth et al, 2017Holtvoeth et al, , 2019, and the molecular evolution of sedimentary organic matter, as evaluated by rock eval pyrolysis (oxygen and hydrogen indices, e.g., Mayr et al, 2008;Lacey et al, 2015). Combining these tracers of organic-geochemical catchment cycling with independent, quantitative estimates of past catchment erosion of detrital matter can then be used to assess the complex interplay between soil-carbon erosion, soil erosion, climate, catchment vegetation cover and final (soil-) carbon deposition in a sedimentary sink (e.g., Chappell et al, 2015;Francke et al, 2020Francke et al, , 2022.…”

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confidence: 99%

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Contemporary Controls on Terrestrial Carbon Characteristics in Temperate and Sub‐Tropical Australian Wetlands

et al. 2023

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Terrestrial carbon stored in soils and freshwater environments is estimated to have absorbed about 29% of global anthropogenic CO 2 emissions that occurred between (IPCC, 2021. However, this carbon is only removed from the contemporary atmosphere gas balance if it is effectively stored in a depositional sink such as the sediments of lakes, reservoirs, swamps and estuaries-collectively described as wetlands (Mendonca et al., 2017). In contrast, mineralization and respiration during temporary storage in soils may promote carbon remobilization into the atmosphere (Doetterl et al., 2016). Wetlands in both natural and agricultural landscapes thus play an essential role in atmospheric CO 2 sequestration, despite their low spatial extent in comparison to land

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Contemporary Controls on Terrestrial Carbon Characteristics in Temperate and Sub‐Tropical Australian Wetlands

et al. 2023

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“…Vegetation is important in the water cycle and helps reduce floods and erosion risks. Therefore, vegetation density and diversity changes can provide clues about the land's ability to maintain stable land cover and reduce the risk of floods and erosion (Kidane et al 2019;Tang et al 2021;Kosmalla et al 2022;Francke et al 2022;Masroor et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Previous research on those matters found that the higher the diversity and density of vegetation, the higher the soil's ability to reduce erosion and maintain soil fertility, increasing the land's ability to maintain stable land cover (Borrelli et al 2017). More studies corresponding with vegetation and the potential vulnerability of land cover for erosion risk found that vegetation density and diversity improve a land's ability to reduce erosion risk, which in turn helps maintain stable land cover (Tang et al 2021;Chen and Zhang 2022;Beniaich et al 2023;Francke et al 2022;Kosmalla et al 2022;Masroor et al 2022). Thus, the vegetation role can be useful in interpreting land cover resilience conditions to observe potential land disasters.…”

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confidence: 99%

Measuring climate action readiness in maintaining ecological resilience using satellite imagery and field research in Garang Watershed, Central Java, Indonesia

et al. 2023

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Abstract. Sudarmanto B, Suranto S, Suntoro S, Sutrisno J. 2023. Measuring climate action readiness in maintaining ecological resilience using satellite imagery and field research in Garang Watershed, Central Java, Indonesia. Biodiversitas 24: 2958-2974. The long-term viability of vegetation as a representation of land cover in a watershed is critical. However, more work is needed to develop vegetation management in the form of a climate action model that considers the existence of ecological and social values as a unified system, particularly in times of climate change. Moran's Index measurements and statistical correlation analysis were employed in this study to quantify geographical patterns. These measurements provide real-world judgment in developing aggressive climate response scenarios. Ecological values were derived from shifting vegetation trend indices due to mutual interaction between living beings that build a life cycle in harmony with the environment. Meanwhile, social values are determined by assessing individual internal factors such as attitudes, knowledge, and responses and external factors represented by local government institutions. The findings reveal that the distribution of residents and residential areas is dispersed. With a high confidence level, a linear index declines with R2 = 0.5872 for inhabitants and R2 = 0.9171 for residential areas. In the dry season, there is a significant relationship between the spatial pattern of vegetation indices and the inhabitant's index. The community's knowledge and attitudes considerably impact changes in vegetation indices, particularly during the rainy season, with R2 = 0.207 for SAVI and 0.232 for NDVI. Community readiness values, which elaborate on knowledge, attitudes, responses, and the role of external institutions, show that community readiness in the upstream area of the watershed, specifically in the Kendal District, is in the best position, with a value of 6.627976. On the contrary, the Semarang District, the upstream area, has the lowest value of 4.257092.

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Busting the dust: Evaluating local vs distal sources in Quaternary sediments at Thirlmere Lakes

Forbes,

Marx,

Cohen

et al. 2024

Applied Geochemistry

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Catchment vegetation and erosion controlled soil carbon cycling in south-eastern Australia during the last two glacial-interglacial cycles

Cited by 8 publications

References 87 publications

Contemporary Controls on Terrestrial Carbon Characteristics in Temperate and Sub‐Tropical Australian Wetlands

Contemporary Controls on Terrestrial Carbon Characteristics in Temperate and Sub‐Tropical Australian Wetlands

Measuring climate action readiness in maintaining ecological resilience using satellite imagery and field research in Garang Watershed, Central Java, Indonesia

Busting the dust: Evaluating local vs distal sources in Quaternary sediments at Thirlmere Lakes

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