Review
Chemistry, Multidisciplinary
Li He, Zhongwen Ou, Jiangyang Fan, Boping Zeng, Wei Guan
Summary: This article focuses on the sources and influence characteristics of microplastic pollution in surface water bodies, with a particular emphasis on the importance and urgency of studying agricultural non-point sources of microplastic pollution. It aims to provide effective scientific basis and technical support for the control of microplastic non-point source pollution in river basins.
FRONTIERS IN CHEMISTRY
(2022)
Review
Biotechnology & Applied Microbiology
Yuvaraj Ravikumar, Junhua Yun, Guoyan Zhang, Hossain M. Zabed, Xianghui Qi
Summary: Non-Point Source (NPS) pollution is a critical global problem, leading to excessive supply of organic and inorganic pollutants and changing water quality. Constructed wetlands (CWs) have been gaining attention for their potential in mitigating pharmaceutical contaminants (PCs) in soil and water reservoirs. This paper summarizes the sources, occurrence, fate, and ecotoxicological effects of PCs derived from NPS pollution, discusses the significance of plants and other factors in CWs for efficient removal of PCs, and emphasizes the need for future research to improve the application of CWs.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Agronomy
Shaobo Wang, Puyu Feng, William D. Batchelor, Kelin Hu, Ji Li
Summary: Organic farming is considered sustainable for greenhouse vegetable production, but excessive use of organic manure can lead to high DON leaching. This study compared DIN and DON leaching under different farming systems, showing that organic systems had lower DIN leaching but higher DON leaching compared to conventional and integrated systems. Management strategies should be optimized to minimize DON leaching in organic farming.
Article
Agriculture, Multidisciplinary
Ju Min, Haijun Sun, Herbert J. Kronzucker, Yuan Wang, Weiming Shi
Summary: The application of nitrification inhibitor CP significantly reduces nitrogen leaching and emissions, improves vegetable crop yield and nitrogen use efficiency. In some cases, the addition of CP can also reduce methane and nitrous oxide emissions, having positive effects on environmental impacts.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Environmental Sciences
Ya Liao, Jingyi He, Baolin Su, Junfeng Dou, Yunqiang Xu, Lifen Li
Summary: A Beijing paddy field was used to validate and refine the in-situ observation method for describing nonpoint source pollution. The study found that the IO method was effective in estimating ET+F and NPS pollution, with small deviations observed in TN, TP, COD, NO3--N, and NH4+-N pollution loads. The location of water level gauges had little impact on IO but influenced water depth observations during the drying period.
Article
Forestry
Rongjia Wang, Jianfeng Zhang, Chunju Cai, Shufeng Wang
Summary: Controlling nitrogen (N) pollution in water source areas is crucial for ensuring human health. While reducing fertilizer application controls N pollution caused by agricultural fertilizers, pollution caused by soil and water erosion in hilly areas can only be controlled by conservation forests. Field observations in the catchment area around Fushi Reservoir revealed that the main N losses occur from June to September, accounting for a significant portion of the annual loss. By optimizing the stand structure of conservation forests, N leakage from the water source area was effectively reduced.
JOURNAL OF FORESTRY RESEARCH
(2023)
Article
Soil Science
Jing Zhang, Hu Li, Jia Deng, Ligang Wang
Summary: This study used a biogeochemical model to evaluate the impact of nitrogen management on vegetable yields, N2O emissions, and NO3--N leaching in greenhouse vegetable fields, ultimately identifying an optimal management practice that reduced emissions and leaching while maintaining or slightly increasing yields.
Article
Environmental Sciences
Li Wan, Yiming Zhao, Longlong Xia, Jing Hu, Tongxin Xue, Haofeng Lv, Zhisheng Yao, Fanqiao Meng, Guoyuan Li, Shan Lin, Klaus Butterbach-Bahl
Summary: The overuse of fertilizers and irrigation, as well as continuous monocropping, is causing soil degradation and the spread of soil-borne diseases, which jeopardizes vegetable production in solar greenhouses. Anaerobic soil disinfestation (ASD) has been introduced as a countermeasure but may increase N leaching and greenhouse gas (GHG) emissions. This study evaluates the effects of different amounts of chicken manure combined with rice shells or maize straw on soil O2 availability, N leaching, and GHG emissions during and after the ASD period.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Paula Olivera Rodriguez, Mauro Ezequiel Holzman, Claudio Ramon Mujica, Raul Eduardo Rivas, Maite M. Aldaya
Summary: This study compared three approaches for estimating the water resource pollution indicator GWF, with A3 method showing higher GWF values than A1 in barley production conditions. Soybean did not produce GWF due to crop characteristics. A3 method incorporated N partitioning and different N inputs, improving estimation accuracy.
Article
Environmental Sciences
Thomas Kiran Marella, Abhishek Saxena, Archana Tiwari, Aviraj Datta, Sreenath Dixit
Summary: This study examines the use of periphyton biofilm-based technologies to combat nutrient pollution in agricultural systems, achieving high removal rates of nitrogen, phosphorus, arsenic, chromium, and lead. The analysis also focused on the diversity and dynamics of microalgae and associated bacteria, highlighting the potential for resource recovery and remediation of NPS pollutants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Waqas Qasim, Li Wan, Haofeng Lv, Yiming Zhao, Jing Hu, Fanqiao Meng, Shan Lin, Klaus Butterbach-Bahl
Summary: Greenhouse vegetable production systems in China suffer from excessive fertilizers and irrigation, leading to soil degradation and disease spread. Incorporating large amounts of organic nitrogen fertilizer during anaerobic soil disinfestation increases environmental nitrogen losses without improving crop productivity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agriculture, Multidisciplinary
L. D. B. Suriyagoda, O. Dissanayake, V Kodithuwakku, I Maduwanthi, N. Dissanayaka, R. Chandrajith
Summary: Vegetables are widely cultivated in high rainfall and mountainous regions in Sri Lanka with poor soil conservation practices. The accumulation of essential mineral and toxic trace elements in the soils and cultivated vegetables are poorly understood. The soil samples contained high concentrations of essential minerals and toxic trace elements, while the edible parts of cabbage had the highest concentrations and potato had the lowest. The vegetables analyzed contained high concentrations of essential minerals and trace elements, but did not exceed the permissible limits.
JOURNAL OF AGRICULTURAL SCIENCE
(2022)
Review
Environmental Sciences
Waqas Qasim, Longlong Xia, Shan Lin, Li Wan, Yiming Zhao, Klaus Butterbach-Bahl
Summary: Excessive nitrogen fertilizer use in greenhouse vegetable production leads to low nitrogen use efficiency and high nitrogen losses, which can be mitigated by reducing fertilizer application rates.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Catherine Sullivan, Walter McDonald
Summary: Subsurface gravel wetlands are a type of emerging green infrastructure that effectively manages stormwater by capturing and slowly releasing runoff. This study evaluated the efficiency of a subsurface gravel wetland in treating stormwater with varying pollutant inputs. The results showed significant reductions in volume and peak flow, although nutrient concentrations increased in some cases.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Hongdong Xiao, Xin Fan, Haijun Sun, Min Yu, Weiming Shi, Bhupinder Pal Singh, A. Dan, Hailong Wang
Summary: Planting leafy vegetable catch crops can effectively reduce nitrogen and phosphorus leaching, increase economic profits for farmers, and have no negative effects on subsequent vegetable production and quality.
JOURNAL OF SOILS AND SEDIMENTS
(2021)