Black carbon deposition and storage in peat soils of the Changbai Mountain, China

Gao, Chuanyu; Knorr, Klaus‐Holger; Yu, Zhiguo; He, Jianxin; Zhang, Shaoqing; Lü, Xianguo; Wang, Guoping

doi:10.1016/j.geoderma.2016.03.021

Cited by 35 publications

(23 citation statements)

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“…Unlike other wetland distribution regions in previous studies (Gao et al, ; Gao et al, ; He et al, ), the Great Hinggan Mountains are famous for a high frequency of fire events. Between 1966 and 2005, more than 1,500 fires occurred, affecting a region of more than 60,000 km 2 in the northern part of the Great Hinggan Mountains (Y. Zhang, ).…”

Section: Discussionmentioning

confidence: 67%

“…The average BC concentrations in five peat cores from the Great Hinggan Mountains were 14.6 ± 0.74 mg·g −1 , and the range were between 8.90 and 25.3 mg·g −1 , which were similar to those in the peatland from the Changbai Mountains and were slightly lower than those from the Sanjiang Plain (Gao et al, ; Gao et al, ). Industrial development can lead to increases in regional soil BC concentrations (Lehndorff et al, ).…”

Section: Discussionmentioning

confidence: 81%

“…In contrast, BC deposition fluxes at other worldwide sites (e.g., Tibet Plateau, China; Northern Europe) continued increasing, and the highest deposition fluxes appeared in approximately the 2000s (Cong et al, ; Ruppel et al, ). More intensive human activities in Northeast China, accompanied by accelerated BC production, have led to an increase in BC deposition fluxes in the Sanjiang Plain and Changbai Mountains over the last 150 years, especially after the 1980s (Gao et al, ; Gao et al, ). The Great Hinggan Mountains are located in the western part of Northeast China, where the main wind direction is from west to east, meaning that sources of the BC are mainly local sources and regional sources from the western part of the Great Hinggan Mountains.…”

Section: Discussionmentioning

confidence: 99%

“…The Great Hinggan Mountains are located in western region of Northeast China. This area has a high percentage of forest and peatland cover and has a mean annual precipitation less than half that of the Changbai Mountains (Gao et al, ; G. Wang et al, ). Fire is an important factor influencing forest and peatland ecosystems (Miettinen et al, ), and high frequency and intensity of fire occurred in the Great Hinggan Mountains.…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Impact of forest fires generated black carbon deposition fluxes in Great Hinggan Mountains (China)

Gao

Cong

et al. 2017

Land Degrad Dev

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Black carbon is produced by incomplete combustion of fossil fuels and biomass. The production of black carbon over the last several centuries has been primarily influenced by human activities. Human exploitation of forest resources, together with increases in regional fire frequency and intensity, can increase regional black carbon emissions and can led more black carbon deposited into natural ecosystem. Here, based on 210Pb age‐depth model, we investigated black carbon deposition over several key periods in the last 150 years in 5 peatlands of the Great Hinggan Mountains (Northeast China), an area that has been exploited by humans without forest protection policies. The results showed that average black carbon deposition fluxes from different peatlands in the Great Hinggan Mountains were 1.1 to 4.8 mg·year−1·cm−2, which were similar to other peatland distribution regions and higher than other ecosystems. Frequent and intense fire events during the exploitation period led to regional peak black carbon deposition before the 1980s. After the 1980s, fire events were controlled, and the government implemented forest protection policies that decreased the trend in regional fire frequency in the Great Hinggan Mountains and markedly decreased black carbon deposition. Fire events controlled by regional human activities are therefore the major factor that influence regional black carbon deposition fluxes, and frequent forest fires could increase black carbon deposition fluxes in surrounding ecosystem.

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Section: Discussionmentioning

confidence: 67%

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Impact of forest fires generated black carbon deposition fluxes in Great Hinggan Mountains (China)

Gao

Cong

et al. 2017

Land Degrad Dev

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Decline in the suitable habitat of dominant Abies species in response to climate change in the Hindu Kush Himalayan region: insights from species distribution modelling

Malik

Reshi

Rafiq

et al. 2022

Environ Monit Assess

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Morphology, molecular structure, and stable carbon isotopic composition of black carbon (BC) in urban topsoils

Zong

Xiao

2017

Environ Sci Pollut Res

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Urban soils contain significant amounts of black carbon (BC) from biomass and fossil fuel combustion and regard to be a pool of BC. BC in urban soils has multiple effects on environmental processes in urban system, such as global climate change, air quality, and public health. Urban topsoil samples (0-10 cm) were collected from Anshan, Liaoning Province, northeast China, which is one of the most important old steel industrial bases in China. The BC in urban topsoils was extracted using the density method. Their chemical composition, morphology, molecular structure, and stable carbon isotopic composition were examined using elemental analysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and stable carbon isotope (δC). Elemental analysis shows that carbon content in the BC of studied soils ranged from 64.5 to 78.4%, with the average more than 70%. The O/C atomic ratio of BC is on average 0.18. The BC particle displays different morphology, including porous spherical, irregular porous fragmentary, and blocky shapes. The porous spherical BC particles has atomic molar O/C ratio determined by SEM-EDS ranging from 0.04 to 0.37. XRD indicates that BC exists in mainly combining with mineral phases hematite (FeO), kaolinite (AlSiO(OH)), quartz (SiO), and calcite (CaCO). The FTIR spectra of BC particles show major bands at approximately 3400 cm (O-H), 2920 cm (C = H), 1600 cm (C = C), 1230 cm (C = O), and 1070 cm (C = O). The stable carbon isotope (δC) of BC ranges from -24.48 to -23.18‰ with the average of -23.79 ± 0.39‰. The concentration of BC in the industrial area is significantly (p < 0.05) higher than that in the roadside area. The BC of industrial area is characterized by porous spherical structure, suggesting that they are mainly derived from fossil fuel combustion. Results indicated that a combination of atomic O/C ratio, porous structure, and stable carbon isotopic (δC) of BC could reflect effectively the origin of BC in urban topsoils. It could conclude that BC in Anshan urban topsoil was mainly from fossil fuel combustion.

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Black carbon deposition and storage in peat soils of the Changbai Mountain, China

Cited by 35 publications

References 50 publications

Impact of forest fires generated black carbon deposition fluxes in Great Hinggan Mountains (China)

Impact of forest fires generated black carbon deposition fluxes in Great Hinggan Mountains (China)

Decline in the suitable habitat of dominant Abies species in response to climate change in the Hindu Kush Himalayan region: insights from species distribution modelling

Morphology, molecular structure, and stable carbon isotopic composition of black carbon (BC) in urban topsoils

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