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Hu Y, Xing Z, Zhang F, Tian Q, Badreldin N, Zhao J. Analysis and estimation of nonpoint source pollution under different land use in Anjiagou watershed, Gansu, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:77428-77447. [PMID: 35680749 DOI: 10.1007/s11356-022-20687-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 05/03/2022] [Indexed: 06/15/2023]
Abstract
Agriculture-related nonpoint source pollution has been a worldwide issue in the past few decades. Estimating pollutant sources at the basin scale remains a challenge due to the complexity of pollutant transport mechanisms affected by land use, variable climatic condition, geological formation, and lack of long-term observation data. This study was based on the long-term plot observational data of surface runoff and water quality and used principal component analysis and other statistical analyses to analyze the variation of water quality affected by different land uses (cropland, tree forest, shrub, grassland, and wildland). The mean concentration method with the local calibrated/verified SWAT (soil and water assessment tool) model was used to quantify the load of nonpoint source (NPS) pollutants on slope areas under different land uses in the Anjiagou Watershed. Our research results determined permanganate index (CODMn), ammonia nitrogen (NH3-N), total nitrogen (TN), fluoride (F-), nitrite nitrogen (NO2-N), total phosphorus (TP), and hexavalent chromium (Cr6+) as the significant pollutants while 5-day biochemical oxygen demand (BOD5) was identified to be below the water quality standards of Grade V (water for agricultural and general landscape use) in the studied watershed. Pollutants were discharged through either hillslope at a total rate of 2.4 kg ha-1, accounting for 67.6% of the total, or through waterway channels (32.4%). The pollutant concentrations were from 23.5 mg L-1 to 37.4 mg L-1, varying with pollutants and land uses. All examined water quality indicators exceeded the minimum safety standards defined by the regulations of the Gansu provincial government by averaging 3.5 times higher than the safety threshold. The pollutants from hillslopes exceeded water quality standards by a factor of 3.4-4.4 times compared with from the waterway channel by 1.9. Implementing soil and water conservation measures can mitigate pollutants to some extent, particularly during the process of highland runoff converging into waterways. At the watershed level, between 33 and 38% of the runoff and pollutants were discharged from croplands, between 59 and 66% from forest land, < 2% from grassland, and 1% from wildland. This study also demonstrates a simple but novel method to estimate NPS pollutants using long-term plot observations in conjunction with SWAT models, which can be used in other watersheds with similar conditions.
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Affiliation(s)
- Yanting Hu
- Faculty of Forestry, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Zisheng Xing
- AAFC-Portage Brandon Research and Development Centre, Agriculture and Agrifood Canada, Portage la Prairie, MB, R1N 3V6, Canada
| | - Fu Zhang
- Faculty of Forestry, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
| | - Qing Tian
- Faculty of Forestry, Gansu Agricultural University, Lanzhou, Gansu, 730070, China.
| | - Nasem Badreldin
- Department of Soil Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Jinmei Zhao
- Faculty of Forestry, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
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Akimbekov NS, Digel I, Tastambek KT, Marat AK, Turaliyeva MA, Kaiyrmanova GK. Biotechnology of Microorganisms from Coal Environments: From Environmental Remediation to Energy Production. BIOLOGY 2022; 11:biology11091306. [PMID: 36138784 PMCID: PMC9495453 DOI: 10.3390/biology11091306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 11/22/2022]
Abstract
Simple Summary Despite the wide perception that coal environments are extreme habitats, they harbor resident microbial communities. Coal-associated habitats, such as coal mine areas/drainages, spoil heaps, and coalbeds, are defined as complex ecosystems with indigenous microbial groups and native microecological networks. Resident microorganisms possess rich functional potentials and profoundly shape a range of biotechnological processes in the coal industry, from production to remediation. Abstract It was generally believed that coal sources are not favorable as live-in habitats for microorganisms due to their recalcitrant chemical nature and negligible decomposition. However, accumulating evidence has revealed the presence of diverse microbial groups in coal environments and their significant metabolic role in coal biogeochemical dynamics and ecosystem functioning. The high oxygen content, organic fractions, and lignin-like structures of lower-rank coals may provide effective means for microbial attack, still representing a greatly unexplored frontier in microbiology. Coal degradation/conversion technology by native bacterial and fungal species has great potential in agricultural development, chemical industry production, and environmental rehabilitation. Furthermore, native microalgal species can offer a sustainable energy source and an excellent bioremediation strategy applicable to coal spill/seam waters. Additionally, the measures of the fate of the microbial community would serve as an indicator of restoration progress on post-coal-mining sites. This review puts forward a comprehensive vision of coal biodegradation and bioprocessing by microorganisms native to coal environments for determining their biotechnological potential and possible applications.
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Affiliation(s)
- Nuraly S. Akimbekov
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
- Correspondence:
| | - Ilya Digel
- Institute for Bioengineering, FH Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Kuanysh T. Tastambek
- Department of Fundamental Medicine, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
- Department of Applied Biology, M. Kh. Dulaty Taraz Regional University, Taraz 080012, Kazakhstan
- Ecology Research Institute, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkistan 161200, Kazakhstan
| | - Adel K. Marat
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
| | - Moldir A. Turaliyeva
- Department of Biotechnology, M. Auezov South Kazakhstan University, Shymkent 160012, Kazakhstan
| | - Gulzhan K. Kaiyrmanova
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
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Ji C, Huang J, Tian Y, Liu Y, Barvor JB, Shao X, Li Z. Feasibility Study on the Application of Microbial Agent Modified Water-Jet Loom Sludge for the Restoration of Degraded Soil in Mining Areas. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:6797. [PMID: 34202710 PMCID: PMC8296874 DOI: 10.3390/ijerph18136797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/16/2021] [Accepted: 06/16/2021] [Indexed: 11/29/2022]
Abstract
Open-pit mining causes soil damage and affects the health of the ecosystem. In the arid grassland mining areas, the soil is severely sanded, water-starved, and saline, thus making it difficult for plants and microorganisms to survive. Water-jet loom sludge can be used to improve the quality as it contains a lot of clay and is rich in organic matter, which provides a material basis for microorganism activity. To explore the effects of microbial agent-modified water-jet loom sludge on the restoration of degraded soil in grassland mining areas, four pot trials were set up, i.e., for untreated soil, the application of a microbial agent alone, the application of water-jet loom sludge alone, and the combined application of water-jet loom sludge and the microbial agent. The results show that (1) microbial agent-modified sludge can improve soil water-holding capacity and aggregate stability; (2) the nutrient content of the restored soil fraction increased significantly, and the pH of the original saline soil decreased from 9.06 to 7.84; (3) this method significantly increased plant biomass and microbial biomass carbon and enhanced the abundance and diversity of fungi and bacteria. The three treatments had different results in different soil properties, and the effect of the combined water-jet loom sludge and microbial agent treatment on soil remediation was significantly better than the individual application of either.
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Affiliation(s)
- Chuning Ji
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou 221116, China; (C.J.); (Y.T.); (J.B.B.); (X.S.); (Z.L.)
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
| | - Jiu Huang
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou 221116, China; (C.J.); (Y.T.); (J.B.B.); (X.S.); (Z.L.)
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
| | - Yu Tian
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou 221116, China; (C.J.); (Y.T.); (J.B.B.); (X.S.); (Z.L.)
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
| | - Ying Liu
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
| | - Joshua Bosco Barvor
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou 221116, China; (C.J.); (Y.T.); (J.B.B.); (X.S.); (Z.L.)
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
| | - Xintong Shao
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou 221116, China; (C.J.); (Y.T.); (J.B.B.); (X.S.); (Z.L.)
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
| | - Zi’ao Li
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou 221116, China; (C.J.); (Y.T.); (J.B.B.); (X.S.); (Z.L.)
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China;
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