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Xi S, Liu H, Zhang J, Hu L, Wang W. Key factors affecting NH 3-N in the Huaihe River Basin due to human activities. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:218. [PMID: 38849659 DOI: 10.1007/s10653-024-01967-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/25/2024] [Indexed: 06/09/2024]
Abstract
Human activity factors have a significant impact on changes in ammonia nitrogen (NH3-N) content in rivers. Existing research mainly focuses on human activity factors as type factors, and lacks research on the key factors affecting river NH3-N among human activity factors. Therefore, this paper aims to study the key factors affecting human activities on NH3-N in the Huaihe River through various statistical analysis methods. The study found that changes in NH3-N content in the Huaihe River are mainly affected by land use patterns in the basin. There are two different ways in which land use affects NH3-N in rivers: direct effects and indirect effects. We also studied the main pathways through which changes in key factors in human activities affect NH3-N in the Huaihe River by constructing a structural equation model. The results showed that crop sowing area and afforestation area have a significant direct effect on NH3-N in the Huaihe River. In addition, crop sowing area and afforestation area can also affect river NH3-N by regulating the amount of nitrogen fertilizer and human excrement. This study is of great significance for understanding how human activities regulate NH3-N content in rivers.
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Affiliation(s)
- Shanshan Xi
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei City, 230601, Anhui Province, People's Republic of China
- Anhui Provincial Institute of Ecological Civilization, Hefei, Anhui, People's Republic of China
- Anhui Province Tongyuan Environmental Environment Co. Ltd, Hefei, Anhui, People's Republic of China
| | - Hao Liu
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei City, 230601, Anhui Province, People's Republic of China.
- Anhui Provincial Institute of Ecological Civilization, Hefei, Anhui, People's Republic of China.
| | - Jiamei Zhang
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei City, 230601, Anhui Province, People's Republic of China
- Anhui Provincial Institute of Ecological Civilization, Hefei, Anhui, People's Republic of China
| | - Lechang Hu
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei City, 230601, Anhui Province, People's Republic of China
- Anhui Provincial Institute of Ecological Civilization, Hefei, Anhui, People's Republic of China
| | - Wei Wang
- School of Environmental and Energy Engineering, Anhui Jianzhu University, 292, Ziyun Rd., Shushan District, Hefei City, 230601, Anhui Province, People's Republic of China
- Anhui Provincial Institute of Ecological Civilization, Hefei, Anhui, People's Republic of China
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Morales L, Zila CT, Moreta Mejía DE, Montoya Arbelaez M, Balint-Kurti PJ, Holland JB, Nelson RJ. Diverse Components of Resistance to Fusarium verticillioides Infection and Fumonisin Contamination in Four Maize Recombinant Inbred Families. Toxins (Basel) 2019; 11:E86. [PMID: 30717228 PMCID: PMC6410224 DOI: 10.3390/toxins11020086] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/08/2019] [Accepted: 01/22/2019] [Indexed: 11/16/2022] Open
Abstract
The fungus Fusarium verticillioides can infect maize ears, causing Fusarium ear rot (FER) and contaminating the grain with fumonisins (FUM), which are harmful to humans and animals. Breeding for resistance to FER and FUM and post-harvest sorting of grain are two strategies for reducing FUM in the food system. Kernel and cob tissues have been previously associated with differential FER and FUM. Four recombinant inbred line families from the maize nested associated mapping population were grown and inoculated with F. verticillioides across four environments, and we evaluated the kernels for external and internal infection severity as well as FUM contamination. We also employed publicly available phenotypes on innate ear morphology to explore genetic relationships between ear architecture and resistance to FER and FUM. The four families revealed wide variation in external symptomatology at the phenotypic level. Kernel bulk density under inoculation was an accurate indicator of FUM levels. Genotypes with lower kernel density-under both inoculated and uninoculated conditions-and larger cobs were more susceptible to infection and FUM contamination. Quantitative trait locus (QTL) intervals could be classified as putatively resistance-specific and putatively shared for ear and resistance traits. Both types of QTL mapped in this study had substantial overlap with previously reported loci for resistance to FER and FUM. Ear morphology may be a component of resistance to F. verticillioides infection and FUM accumulation.
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Affiliation(s)
- Laura Morales
- School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA.
| | - Charles T Zila
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695 USA.
| | | | | | - Peter J Balint-Kurti
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695, USA.
- Plant Science Research Unit, United States Department of Agriculture⁻Agricultural Research Service, Raleigh, NC 27695, USA.
| | - James B Holland
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695 USA.
- Plant Science Research Unit, United States Department of Agriculture⁻Agricultural Research Service, Raleigh, NC 27695, USA.
| | - Rebecca J Nelson
- School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA.
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Przygocka-Cyna K, Grzebisz W. Biogas digestate – benefits and risks for soil fertility and crop quality – an evaluation of grain maize response. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThe agricultural usability of biogas digestate solids (BDS) as a soil amendment depends upon its impact on soil fertility and the content of minerals in the edible part of the grown crop. This hypothesis was verified in a series of field experiments with maize conducted between 2014 and 2016 at Brody, Poland. The two-factorial experiment consisted of the DBS application method (broadcast and row) and its rate: 0, 0.8, 1.6, 3.2 t ha–1. The post-harvest analysis of soil fertility showed that BDS can, at least partly, replace mineral fertilizers. The supply of N-NO3 to maize as a growth driving factor was significantly limited by a shortage of iron, potassium and, to some extent, magnesium. As recorded in 2016, the shortage of available Fe resulted in a low/pool of N-NO3, thus significantly decreasing the yield of grain. The shortage of K supply to grain created a pathway for the accumulation of other elements, including heavy metals. The disadvantage of the N-NO3 pool increase, due to the DBS application, was concomitant with the enhanced intake of cadmium and lead, which consequently exceeded their permissible concentration limits in grain. These unfavorable results of biogas digestate impact on the quality of maize grain can be ameliorated by incorporating zinc into the biogas type of soil amendment and keeping a sufficiently high level of available potassium and iron. The shortage of K can be partly overcome by a better sodium supply, however, its accumulation in grain results in an enhanced accumulation of cadmium and lead.
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Affiliation(s)
- Katarzyna Przygocka-Cyna
- University of Life Sciences, Department of Agricultural Chemistry and Environmental Biogeochemistry, 60-625, Poznan, Poland
| | - Witold Grzebisz
- University of Life Sciences, Department of Agricultural Chemistry and Environmental Biogeochemistry, 60-625, Poznan, Poland
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