Article
Soil Science
Camile Sothe, Alemu Gonsamo, Joyce Arabian, James Snider
Summary: Canada's extensive forests and peatlands play key roles in the global carbon cycle, storing approximately 20% of the world’s soil carbon stock. This study successfully estimated the spatial and vertical distributions of soil organic carbon concentration, with soil depth being the most important factor. The findings provide insights into factors controlling SOC concentration in Canada and potential areas with high carbon reserves.
Article
Agronomy
Genzhu Wang, Yuguo Liu, Ming Cui, Ziyuan Zhou, Qian Zhang, Yajin Li, Wenxiu Ha, Danbo Pang, Jiufu Luo, Jinxing Zhou
Summary: The study revealed significant changes in soil bacterial and fungal diversities and compositions during secondary succession in karst areas. Microbial diversity was determined by soil properties, while compositions were jointly driven by plant and soil properties.
Article
Geosciences, Multidisciplinary
Yu Yan, Rui-an Wan, Rui-lian Yu, Gong-ren Hu, Cheng-qi Lin, Hua-bin Huang
Summary: Metal(loid)s in mangrove sediments pose ecological risks, particularly Hg and Cd. Source-specific ecological risk assessment identified natural, industrial, aquacultural, and agricultural sources of metal(loid)s. Natural sources dominated total metals, while aquacultural source significantly contributed to Hg and Cd ecological risk. Nemerow integrated risk index showed moderate ecological risks. The study emphasizes the importance of source-specific ecological risk assessment for targeted environmental management.
Article
Plant Sciences
Shaimaa Hassan Abd-Elrahman, Hani Saber Saudy, Dalia Ahmed Abd El-Fattah, Fadl Abd-Elhamid Hashem
Summary: This study aimed to limit the accumulation of nitrate in lettuce leaves by adjusting the balance between fertilization and irrigation. The results showed that vermicompost or biochar, along with any irrigation regime, as well as compost with ETc60 irrigation, were effective combinations for increasing soil potassium content. Vermicompost or biochar were efficient treatments for increasing lettuce yield under ETc80 or ETc100 irrigation. Mineral fertilizer or vermicompost showed the highest potassium content in lettuce leaves under ETc60 irrigation. Furthermore, ETc60 or ETc80 x mineral fertilizer recorded the maximum nitrate content in lettuce leaves.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Plant Sciences
Basem Sobhy Ibrahim Makhlouf, Soha Ramadan Abou Elela Khalil, Hani Saber Saudy
Summary: This study assessed the effects of humic acids and chitosan on sugar beet yield and quality under drought conditions. The findings suggest that the application of appropriate amounts of humic acids and chitosan can improve sugar beet yield and quality, and mitigate the negative impacts of water shortage.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Geosciences, Multidisciplinary
Lu Jia, Kun-xia Yu, Zhan-bin Li, Peng Li, Jun-zheng Zhang, An-na Wang, Ling Ma, Guo-ce Xu, Xiang Zhang
Summary: This study analyzes the spatial and temporal variation of rainfall erosivity in 17 watersheds on the Loess Plateau and its impact on sediment load. The findings indicate a decreasing pattern of rainfall erosivity from southeast to northwest and significant increases in May, June, and September. Additionally, the changes in ENSO and sunspots have specific influences on rainfall erosivity. The sediment load in the typical watersheds shows a significant decreasing trend in yearly and monthly scales. The causes of rainfall erosivity and sediment load changes differ in different periods.
Article
Geosciences, Multidisciplinary
Yunfei Cai, Fei Zhang, Pan Duan, Chi Yung Jim, Ngai Weng Chan, Jingchao Shi, Changjiang Liu, Jianguo Wang, Jupar Bahtebay, Xu Ma
Summary: Vegetation-coverage research in China shows its significant contribution to global greening, with a 25% contribution rate. The study assesses the changes in fractional vegetation cover (FVC) and highlights the complex relationships between vegetation dynamics and anthropogenic factors such as land-use conversion and ecological projects. China has experienced progressive greening, with regional variations in patterns and causes. Notable human activities, including afforestation programs and conversion of cropland to forest programs, have played a significant role in inducing FVC changes.
Article
Soil Science
Robert W. Brown, David R. Chadwick, Harriet Thornton, Miles R. Marshall, Shuikuan Bei, Marco A. Distaso, Rafael Bargiela, Karina A. Marsden, Peta L. Clode, Daniel Murphy, Saskia Pagella, Davey L. Jones
Summary: Research has demonstrated the significant impact of microplastics on aquatic systems, but little is known about their effects on the terrestrial environment, particularly in agroecosystems. This study found that pure low-density polyethylene microplastic loading had no significant effect on soil and plant biological health in a field environment, as well as the growth and yield of wheat plants.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Geosciences, Multidisciplinary
Nier Su, Scott Jarvie, Yongzhi Yan, Xiaoqian Gong, Fengshi Li, Peng Han, Qing Zhang
Summary: Habitat fragmentation is associated with increased soil fungal diversity, while the change in soil bacterial diversity is not significant. Soil characteristics play a key role in soil bacterial diversity, while landscape context has a stronger impact on maintaining soil fungal diversity.
Article
Soil Science
M. Francesca Cotrufo, Michelle L. Haddix, Marie E. Kroeger, Catherine E. Stewart
Summary: Soil organic matter plays a crucial role in providing ecosystem services, and understanding the mechanisms of its formation from plant inputs is important for promoting its regeneration. A laboratory incubation experiment revealed that the physical nature and chemical composition of plant inputs significantly influenced the pathways and efficiency of soil organic matter formation. The highest potential for soil organic matter accrual was found in subsoils with higher C saturation deficit.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Soil Science
Xi Chen, Junjie Lin, Peng Wang, Shuai Zhang, Dan Liu, Biao Zhu
Summary: The addition of exogenous organic matter can affect the decomposition rate and carbon balance of soil carbon pools through the priming effect. The relatively stable soil carbon pool is more susceptible to the priming effect than the active soil carbon pool, but it can sequester more new carbon and result in higher soil carbon storage in the short term.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Geosciences, Multidisciplinary
Bing Guo, Fei Yang, Yewen Fan, Wenqian Zang
Summary: This study analyzed the spatio-temporal evolution pattern of rocky desertification in Bijie city in southwest China over the past 35 years and identified the dominant driving factors in different temporal periods. The findings showed an overall decreasing trend of rocky desertification, with the western parts being more severely affected than the eastern regions. Land use and population density emerged as the dominant factors instead of vegetation coverage and temperature.
Article
Soil Science
Huaying Zhang, Yichao Shi, Yuxin Dong, David R. Lapen, Jinghui Liu, Wen Chen
Summary: In semi-arid sandy soils, three to four years of introduced conservation and subsoiling tillage practices significantly impact the soil bacterial and archaeal communities associated with beneficial nitrogen cycling processes, such as nitrogen fixation, nitrate reduction, nitrification, and denitrification. The introduced tillage practices had a notable effect on the abundance of KEGG orthologs associated with nitrogen fixation in species like Rhodoplanes, Nitrospira, Skermanella, and Rhizobium.
SOIL & TILLAGE RESEARCH
(2022)
Article
Soil Science
Qingwei Zhuang, Zhenfeng Shao, Deren Li, Xiao Huang, Bowen Cai, Orhan Altan, Shixin Wu
Summary: This study investigates the joint impact of climate, urbanization, soil, and agricultural management practices (AMPs) on the net primary productivity (NPP) of the farmland ecosystem. The results show that climate variables play a major role in driving NPP growth, while AMPs have a positive contribution. Soil salinization has a more significant negative effect on NPP than urbanization. This study provides new insights on the mechanism of NPP variations and has implications for sustainable agriculture and food security.
Article
Soil Science
Hongwei Xu, Qing Qu, Guanwen Li, Guobin Liu, Violette Geissen, Coen J. Ritsema, Sha Xue
Summary: Nitrogen addition significantly altered the C-N-P stoichiometry in plants, soil, and enzymes, resulting in decreased C:N ratio in plants, increased N:P ratio, and exacerbated microbial C and P limitation.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Review
Environmental Sciences
Sabry M. Shaheen, Ahmed Mosa, Natasha, Hamada Abdelrahman, Nabeel Khan Niazi, Vasileios Antoniadis, Muhammad Shahid, Hocheol Song, Eilhann E. Kwon, Joerg Rinklebe
Summary: This article reviews the preparation and characterization of nZVIBC and FeOxBC, and their application in TE removal. The combination of BC and nZVI, FeOx, or Fe salts enhances the adsorption capability for TEs through surface modifications. The complex sorption mechanisms of BC and nZVI, FeOx, or Fe salts for TEs are specific to each TE. Significant research and technological advancements are identified for the use of nZVIBC and FeOxBC as novel and effective sorbents in the remediation of TE-contaminated water.
Review
Plant Sciences
Diksha Sati, Veni Pande, Satish Chandra Pandey, Mukesh Samant
Summary: Increased severity of droughts, due to anthropogenic activities and global warming, has posed a severe threat to agricultural productivity. The application of plant growth-promoting rhizobacteria (PGPR) can be a beneficial and environmentally sustainable solution, enhancing drought resistance and promoting plant growth.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Agronomy
Upasana Agri, Parul Chaudhary, Anita Sharma, Bharti Kukreti
Summary: This study analyzed the impact of nanochitosan and bioinoculants on maize plants and soil health. The results showed that the use of nanochitosan and bioinoculants improved plant health parameters and soil quality, including increased plant height, photosynthetic pigments, and bacterial population in the soil.
Article
Soil Science
Zhenke Zhu, Yunying Fang, Yuqing Liang, Yuhong Li, Shoulong Liu, Yongfu Li, Baozhen Li, Wei Gao, Hongzhao Yuan, Yakov Kuzyakov, Jinshui Wu, Andreas Richter, Tida Ge
Summary: This study examines the strategies and response mechanisms of microorganisms in regulating priming effects and carbon accumulation in paddy soil. It found that high carbon input, especially alongside high mineral fertilization, increases soil organic carbon content through negative priming and microbial-derived carbon accumulation. On the other hand, low levels of carbon and mineral fertilization lead to increased mineralization of soil organic carbon.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Geosciences, Multidisciplinary
Weiqing Li, Hui Qian, Panpan Xu, Qiying Zhang, Jie Chen, Kai Hou, Wenhao Ren, Wengang Qu, Yao Chen
Summary: This study investigated the characteristics, sources, and risks of heavy metals in surface sediments from the mainstream of the Yellow River. The results showed that heavy metals, particularly lead, pose a major threat to the aquatic ecological environment and public health in the Yellow River Basin.
