Articles | Volume 17, issue 9
https://doi.org/10.5194/essd-17-4779-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-17-4779-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Data description article
| 
25 Sep 2025
Data description article |
| 25 Sep 2025
| 25 Sep 2025
Multi-element dataset of soil profiles across climatic zones in China's mountains
Yuying Wu
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610213, China
University of Chinese Academy of Sciences, Beijing 10049, China
Yuhan Wang
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610213, China
Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China
Wenzheng Yang
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610213, China
Jie Zhang
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610213, China
Yanhong Wu
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610213, China
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
Gan Zhang
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
Haijian Bing
CORRESPONDING AUTHOR
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610213, China
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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Relative humidity (RH) affects brown carbon (BrC) light absorption and radiative forcing, but this relationship is still unclear. Using field observations across wide RH and pollution ranges with molecular-level measurements, this study shows that RH non-linearly affects water-soluble BrC absorption, with magnitude varying by pollution level. Molecular analysis reveals the mechanisms, improving understanding of BrC radiative effects and aiding humidity-dependent absorption in climate models.
Xiaocong Peng, Wei Song, Guohua Zhang, Qinhao Lin, Jianlin Cheng, Yang Li, Xinru Huang, Baoyi Chen, Jianzhong Song, Yingjun Chen, Gan Zhang, Ping’an Peng, Xinming Wang, and Xinhui Bi
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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Jiao Tang, Shujie Hu, Xiao Wang, Jiaqi Wang, Shaojun Lv, Xiaofei Geng, Guangcai Zhong, Yangzhi Mo, Surat Bualert, Jun Li, Shizhen Zhao, and Gan Zhang
Atmos. Chem. Phys., 26, 8341–8353, https://doi.org/10.5194/acp-26-8341-2026, https://doi.org/10.5194/acp-26-8341-2026, 2026
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Water-soluble organic nitrogen (WSON) in coastal aerosols is critical for atmospheric chemistry and climate processes. This Bangkok study found sea-spray aerosol (SSA) is an important contributor to coastal aerosol WSON under marine air, its contribution surging from 3.8 % (continental) to 34 %. SSA-associated WSON strongly correlated (r=0.96) with trajectory-based air-mass exposure to chlorophyll-a, which is consistent with marine-biogenic enhancement.
Pingyang Li, Boji Lin, Zhineng Cheng, Jing Li, Jun Li, Duohong Chen, Tao Zhang, Run Lin, Sanyuan Zhu, Jun Liu, Yujun Lin, Shizhen Zhao, Guangcai Zhong, Zhenchuan Niu, Ping Ding, and Gan Zhang
Atmos. Chem. Phys., 26, 5085–5122, https://doi.org/10.5194/acp-26-5085-2026, https://doi.org/10.5194/acp-26-5085-2026, 2026
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Motilal Ghimire, Dibas Shrestha, Raju Chauhan, Amrit Thapa, Til Prasad Pangali Sharma, Krishna Prasad Sharma, Sher Bahadur Gurung, Sundar Devkota, Prabin Bhandari, Sikesh Koirala, Yanhong Wu, Niroj Timalsina, and Jeevan Kutu
The Cryosphere, 20, 551–572, https://doi.org/10.5194/tc-20-551-2026, https://doi.org/10.5194/tc-20-551-2026, 2026
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Tao Cao, Cuncun Xu, Hao Chen, Jianzhong Song, Jun Li, Haiyan Song, Bin Jiang, Yin Zhong, and Ping'an Peng
Atmos. Chem. Phys., 25, 11597–11610, https://doi.org/10.5194/acp-25-11597-2025, https://doi.org/10.5194/acp-25-11597-2025, 2025
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This study investigated the evolution of biomass and water-soluble organic matter (WSOM) derived from coal combustion during an aqueous photochemical process. The results indicate that photochemical aging induces distinct changes in the optical and molecular properties of WSOM. More pronounced alterations were observed during OH photooxidation than direct photolysis. Our results also demonstrate that atmospheric photooxidation may represent a significant source of black-carbon-like substances.
Pingyang Li, Boji Lin, Zhihua Zhou, Jing Li, Zhineng Cheng, Jun Li, Sanyuan Zhu, Shizhen Zhao, Guangcai Zhong, and Gan Zhang
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Urban areas exhibit high carbon footprints yet significant mitigation potential, requiring precise quantification of CO2 sources for effective carbon budgeting. While previous studies focused predominantly on fossil fuel CO2, biogenic CO2 (CO2bio) dynamics remain less understood. Here we show that Δ14CO2 tracers – combined with multi-source data – enable partitioning of CO2bio into three components and identification of their seasonal drivers, advancing our understanding of urban carbon budgets.
Yangzhi Mo, Jun Li, Guangcai Zhong, Sanyuan Zhu, Shizhen Zhao, Jiao Tang, Hongxing Jiang, Zhineng Cheng, Chongguo Tian, Yingjun Chen, and Gan Zhang
Atmos. Chem. Phys., 24, 7755–7772, https://doi.org/10.5194/acp-24-7755-2024, https://doi.org/10.5194/acp-24-7755-2024, 2024
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In this study, we found that biomass burning (31.0 %) and coal combustion (31.1 %) were the dominant sources of water-insoluble organic carbon in China, with coal combustion sources exhibiting the strongest light-absorbing capacity. Additionally, we propose a light-absorbing carbonaceous continuum, revealing that components enriched with fossil sources tend to have stronger light-absorbing capacity, higher aromaticity, higher molecular weights, and greater recalcitrance in the atmosphere.
Wenwen Ma, Rong Sun, Xiaoping Wang, Zheng Zong, Shizhen Zhao, Zeyu Sun, Chongguo Tian, Jianhui Tang, Song Cui, Jun Li, and Gan Zhang
Atmos. Chem. Phys., 24, 1509–1523, https://doi.org/10.5194/acp-24-1509-2024, https://doi.org/10.5194/acp-24-1509-2024, 2024
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Zeyu Sun, Zheng Zong, Yang Tan, Chongguo Tian, Zeyu Liu, Fan Zhang, Rong Sun, Yingjun Chen, Jun Li, and Gan Zhang
Atmos. Chem. Phys., 23, 12851–12865, https://doi.org/10.5194/acp-23-12851-2023, https://doi.org/10.5194/acp-23-12851-2023, 2023
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This is the first report of ship-emitted nitrogen stable isotope composition (δ15N) of nitrogen oxides (NOx). The results showed that δ15N–NOx from ships was −18.5 ± 10.9 ‰ and increased monotonically with tightening emission regulations. The selective catalytic reduction system was the most vital factor. The temporal variation in δ15N–NOx was evaluated and can be used to select suitable δ15N–NOx for a more accurate assessment of the contribution of ship-emitted exhaust to atmospheric NOx.
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The results show that 14C elemental carbon (EC) was not only related to the isolation method but also to the types and proportions of the biomass sources in the sample. The hydropyrolysis (Hypy) method, which can be used to isolate a highly stable portion of ECHypy and avoid charring, is a more effective and stable approach for the matrix-independent 14C quantification of EC in aerosols, and the 13C–ECHypy and non-fossil ECHypy values of SRM1649b were –24.9 ‰ and 11 %, respectively.
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Tao Cao, Meiju Li, Cuncun Xu, Jianzhong Song, Xingjun Fan, Jun Li, Wanglu Jia, and Ping'an Peng
Atmos. Chem. Phys., 23, 2613–2625, https://doi.org/10.5194/acp-23-2613-2023, https://doi.org/10.5194/acp-23-2613-2023, 2023
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This work comprehensively investigated the fluorescence data of light-absorbing organic compounds, water-soluble organic matter in different types of aerosol samples, soil dust, and fulvic and humic acids using an excitation–emission matrix (EEM) method and parallel factor modeling. The results revealed which light-absorbing species can be detected by EEM and also provided important information for identifying the chemical composition and possible sources of these species in atmospheric samples.
Buqing Xu, Jiao Tang, Tiangang Tang, Shizhen Zhao, Guangcai Zhong, Sanyuan Zhu, Jun Li, and Gan Zhang
Atmos. Chem. Phys., 23, 1565–1578, https://doi.org/10.5194/acp-23-1565-2023, https://doi.org/10.5194/acp-23-1565-2023, 2023
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We analyzed compound-specific dual-carbon isotope signatures (Δ14C and δ13C) of dominant secondary organic aerosol (SOA) tracer molecules (i.e., oxalic acid) to investigate the fates of SOAs in the atmosphere at five emission hotspots in China. The results indicated that SOA carbon sources and chemical processes producing SOAs vary spatially and seasonally, and these variations need to be included in Chinese climate projection models and air quality management practices.
Chunlin Zou, Tao Cao, Meiju Li, Jianzhong Song, Bin Jiang, Wanglu Jia, Jun Li, Xiang Ding, Zhiqiang Yu, Gan Zhang, and Ping'an Peng
Atmos. Chem. Phys., 23, 963–979, https://doi.org/10.5194/acp-23-963-2023, https://doi.org/10.5194/acp-23-963-2023, 2023
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In this study, PM2.5 samples were obtained during a winter haze event in Guangzhou, China, and light absorption and molecular composition of humic-like substances (HULIS) were investigated by UV–Vis spectrophotometry and ultrahigh-resolution mass spectrometry. The findings obtained present some differences from the results reported in other regions of China and significantly enhanced our understanding of HULIS evolution during haze bloom-decay processes in the subtropic region of southern China.
Hongxing Jiang, Jun Li, Jiao Tang, Min Cui, Shizhen Zhao, Yangzhi Mo, Chongguo Tian, Xiangyun Zhang, Bin Jiang, Yuhong Liao, Yingjun Chen, and Gan Zhang
Atmos. Chem. Phys., 22, 6919–6935, https://doi.org/10.5194/acp-22-6919-2022, https://doi.org/10.5194/acp-22-6919-2022, 2022
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We conducted field observation employing Fourier transform ion cyclotron resonance mass spectrometry to characterize the molecular composition and major formation pathways or sources of organosulfur compounds in Guangzhou, where is heavily influenced by biogenic–anthropogenic interactions and has high relative humidity and temperature. We suggested that heterogeneous reactions such as SO2 uptake and heterogeneous oxidations are important to the molecular variations of organosulfur compounds.
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Short summary
We developed a large, open-access dataset of mountain soil chemistry in China, based on over 1,300 samples from 166 sites across diverse climates and vegetation types. The dataset includes concentrations of 24 elements and key environmental variables like temperature, rainfall, and soil properties. This dataset offers a valuable resource for studying mountain ecosystems, supporting Earth system modeling, and predicting how soils respond to environmental change.
We developed a large, open-access dataset of mountain soil chemistry in China, based on over...
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