Article
Geosciences, Multidisciplinary
Xiyang Wang, Fangfang Min, Dongsheng Yu, Zaijun Xin, Liang Li, Xiaohui Li, Xiaoyan Sun, Jianjun Pan
Summary: The study analyzed 373 samples from six regions in China's croplands using a 100-day incubation experiment. It found significant regional differences in the mean residence times of active and slow soil organic carbon pools, pointing to the influence of soil texture on these differences.
Article
Environmental Sciences
Ruifeng Sun, Baoyu Sun, Xinge Li, Siyu Wei, Mingliang Zhao, Xiaojing Chu, Weimin Song, Junji Yuan, Guangxuan Han
Summary: This study conducted a seven-year warming experiment in a coastal wetland in the Yellow River Delta and found that climate warming led to a decrease in soil organic carbon content, especially in the topsoil. Additionally, warming reduced the content of labile organic carbon, including dissolved organic carbon and particulate organic carbon, through increased soil salinity. However, it did not affect the content of recalcitrant mineral-associated organic carbon. The findings highlight the importance of considering the varying responses of different soil organic carbon fractions to warming for accurate projections of soil organic carbon dynamics in coastal wetlands under future climate change.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Geosciences, Multidisciplinary
Jiashu Zhou, Tianhua Qu, Yongfu Li, Lukas Van Zwieten, Hailong Wang, Junhui Chen, Xinzhang Song, Ziwen Lin, Xiaoping Zhang, Yu Luo, Yanjiang Cai, Zheke Zhong
Summary: This study conducted a field trial to investigate the impact of biochar-based fertilizer on soil N2O emissions in a subtropical Moso bamboo plantation. The results showed that biochar decreased N2O emissions by lowering WSON concentration and N-cycling enzyme activity in soils. These findings suggest that biochar application could be an effective strategy for mitigating N2O emissions in subtropical plantation soils.
Article
Forestry
Bo Wang, Xiaolong Su, Tongli Wang, Tao Yang, Cheng Xu, Zeyang Lin, Di Tian, Luozhong Tang
Summary: Agroforestry systems are effective methods of carbon sequestration, influencing the spatial distribution of organic matter input into the soil. Wide-row agroforestry systems have higher soil organic carbon (SOC) contents, fine root biomass, and carbon fractions compared to pure poplar systems and wheat fields. The diameter at the breast height of trees positively affects SOC at greater distances.
Article
Soil Science
Linjie Ma, Xiaobing Lv, Nan Cao, Zhi Wang, Zhiguo Zhou, Yali Meng
Summary: The application of crop residue-biochar effectively increases soil carbon sequestration, enhances soil organic C content and C pool management index, optimizes soil carbon cycle enzyme activities, and has a positive impact on soil microbial abundance.
APPLIED SOIL ECOLOGY
(2021)
Article
Environmental Sciences
Nanhai Zhang, Xu Ye, Yuan Gao, Gaoxiang Liu, Zihan Liu, Qilin Zhang, Enke Liu, Shikun Sun, Xiaolong Ren, Zhikuan Jia, Kadambot H. M. Siddique, Peng Zhang
Summary: The use of biochar in agriculture is recognized as an effective means of carbon sequestration, but its effects on crop yield and soil carbon and nitrogen can vary. This study recommends using small amounts of biochar with lower pyrolysis temperatures in soils with low fertility, coarse texture, and tropical regions to optimize economic and environmental benefits.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Analytical
Tianbao Ren, Jiayi Li, Huilin Feng, Fei Yun, Nan Chen, Huanhuan Wang, Quanyu Yin, Haobao Liu, Peter Nai Yuh Yek, Su Shiung Lam, Guoshun Liu
Summary: This study investigated the effects of biochar particle size on soil carbon pool structure, showing that different particle sizes influenced the porosity properties of biochar. Application of biochar increased soil organic carbon content and improved soil water-stable aggregates. Additionally, biochar with smaller particle size significantly enhanced soil carbon pool management index.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Environmental Sciences
Somayyeh Razzaghi, Khandakar Rafiq Islam, Ibrahim Abdelmalik Mohamed Ahmed
Summary: This study evaluated the impact of deforestation on soil organic carbon and nitrogen stocks. The results showed that well-stocked forests can decrease the lability of soil organic carbon and the carbon-to-nitrogen ratio in soil organic matter is disproportionate. Further research is needed to assess the effects of forest management practices on soil organic carbon and nitrogen stocks under Mediterranean climates.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Forestry
Wei Zheng, Chengjiao Rao, Qian Wu, Enwen Wang, Xingjian Jiang, Yichen Xu, Lei Hu, Yazhen Chen, Xiaocui Liang, Wende Yan
Summary: This study aims to explore the relationship between bedrock exposure rates and soil labile organic carbon fractions (SLOCFs) in karst rocky desertification areas, and identify the limiting factors for SLOCFs. The results showed that concentrations and stocks of SLOCFs decreased with increasing soil depth, while light fraction organic carbon (LFOC) decreased with increasing bedrock exposure rate. The carbon pool management index and sensitivity index differed significantly under different bedrock exposure rates. The increase in bedrock exposure rate had a great impact on microbial biomass carbon (MBC), dissolved organic carbon (DOC), easily oxidized organic carbon (EOC), and soil organic carbon (SOC). The presence of secondary forest improved the integrity of karst landscapes without affecting the soil properties and concentrations and stocks of SLOCFs in karst rocky desertification areas.
Article
Environmental Sciences
Xuyang Liu, Weiqi Wang, Josep Penuelas, Jordi Sardans, Xiaoxuan Chen, Yunying Fang, Abdulwahed Fahad Alrefaei, Fanjiang Zeng, Akash Tariq
Summary: The application of nitrogen-enriched biochar can reduce soil organic carbon mineralization and carbon emissions, increase soil carbon sink capacity, and improve the sustainability of paddy rice production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Jiaping Yang, Juan Zhan, Sabah Taresh, Weiling Sun, Yinan Li, Ashrafun Nessa, Qinggui Wu, Zhihong Xu
Summary: The short-term effects of biochar application on soil labile carbon and nitrogen pools in nutrient-deficient soil were evaluated in this study. The results showed that while biochar application decreased labile pools in the short term, it also had the potential to maintain stability of these pools in forest ecosystems. These findings are important for accelerating carbon sequestration and nitrogen cycling, improving the adaptive capacity of low fertility soils in response to prescribed burning and climate change.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Geosciences, Multidisciplinary
Jitendra Ahirwal, Anudip Gogoi, Uttam Kumar Sahoo
Summary: This study analyzed the changes in carbon stability and SOC stock under different forest types in the eastern Himalayan region of India. The results showed that LULC change significantly altered the stability and stock of SOC in natural forests, with Quercus forests playing a major role in carbon sink management.
Article
Forestry
Enhui Wang, Ning Yuan, Shaofeng Lv, Xiaoping Tang, Gang Wang, Linlin Wu, Yufeng Zhou, Guomo Zhou, Yongjun Shi, Lin Xu
Summary: This study examined the effects of biochar-based fertilizer treatment on soil greenhouse gas emissions in a bamboo plantation. The results showed that biochar-based fertilizer treatment reduced soil nitrous oxide emissions, while chemical fertilizer and mixed fertilizer treatments increased emissions. Additionally, biochar-based fertilizer treatment and mixed fertilizer treatment increased soil methane uptake, while chemical fertilizer treatment had no significant effect. The study also found that different treatments affected greenhouse gas emissions by changing soil carbon and nitrogen pools.
Article
Agronomy
Lifeng Wang, Yu Zhou, Yamei Chen, Zhenfeng Xu, Jian Zhang, Yang Liu
Summary: The home-field advantage and the ability of local soil decomposers have significant impacts on litter decomposition, with different litter carbon fractions responding differently. This study provides insights into the importance of these factors in shaping decomposer communities and litter decomposition processes.
Article
Environmental Sciences
Jin-Feng Liang, Qian-Wei Li, Jun-Qin Gao, Jiu-Ge Feng, Xiao-Ya Zhang, Yi-Jing Hao, Fei-Hai Yu
Summary: The addition of biochar-compost mixture had a significant and positive effect on the growth of Phragmites australis in saline soil compared to biochar alone. Therefore, incorporating biochar and compost mixture may be an effective approach to improve the growth of P. australis in coastal wetlands where soil salinity is a common environmental stress.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)