Nitrogen fertilization altered arbuscular mycorrhizal fungi abundance and soil erosion of paddy fields in the Taihu Lake region of China.
Identifieur interne : 000369 ( Main/Corpus ); précédent : 000368; suivant : 000370Nitrogen fertilization altered arbuscular mycorrhizal fungi abundance and soil erosion of paddy fields in the Taihu Lake region of China.
Auteurs : Shujuan Zhang ; Jiazheng Yu ; Shuwei Wang ; Rajendra Prasad Singh ; Dafang FuSource :
- Environmental science and pollution research international [ 1614-7499 ] ; 2019.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Fertilizers, Nitrogen.
- geographic : China, Soil.
- growth & development : Mycorrhizae.
- Agriculture, Environmental Monitoring, Lakes, Oryza, Soil Microbiology.
Abstract
Arbuscular mycorrhizal (AM) fungi were of importance in mitigating soil erosion, which was highly influenced by biotic and abiotic factors, such as host plant growth and soil nutrient. To investigate the impact of nitrogen (N) fertilization on seasonal variance in AM colonization and soil erosion, we conducted a field experiment with rice cultivation under four N fertilizer levels (0 kg N ha-1, 270 kg N ha-1, 300 kg N ha-1, and 375 kg N ha-1 plus organic fertilizers) in the Taihu Lake region, China. We investigated AM colonization before rice transplantation, during rice growth, and after rice harvest. We also assessed soil splash erosion of intact soil cores sampled at tillering and after rice harvest. We found that AM colonization (indicated by percentage of root length colonization) varied from 15 to 73%, which was attributed to rice growth, N fertilization, and their interaction. Soil loss due to splash erosion was cut down by organic N fertilizer at tillering, while higher inorganic N fertilization significantly increased soil loss after rice harvest. Additionally, we found significantly negative relationships of AM colonization to soil loss but positive relationships to soil aggregate stability. We highlighted the potential role of AM fungi in decreasing soil erosion and suggested that high N fertilization should be considered carefully when seeking after high yields.
DOI: 10.1007/s11356-019-06005-0
PubMed: 31352598
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Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.</nlm:affiliation></affiliation></author><author><name sortKey="Singh, Rajendra Prasad" sort="Singh, Rajendra Prasad" uniqKey="Singh R" first="Rajendra Prasad" last="Singh">Rajendra Prasad Singh</name><affiliation><nlm:affiliation>Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing, 210096, China.</nlm:affiliation></affiliation></author><author><name sortKey="Fu, Dafang" sort="Fu, Dafang" uniqKey="Fu D" first="Dafang" last="Fu">Dafang Fu</name><affiliation><nlm:affiliation>Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing, 210096, China. fdf@seu.edu.cn.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2019">2019</date><idno type="RBID">pubmed:31352598</idno><idno type="pmid">31352598</idno><idno 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210096, China.</nlm:affiliation></affiliation></author><author><name sortKey="Wang, Shuwei" sort="Wang, Shuwei" uniqKey="Wang S" first="Shuwei" last="Wang">Shuwei Wang</name><affiliation><nlm:affiliation>State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.</nlm:affiliation></affiliation></author><author><name sortKey="Singh, Rajendra Prasad" sort="Singh, Rajendra Prasad" uniqKey="Singh R" first="Rajendra Prasad" last="Singh">Rajendra Prasad Singh</name><affiliation><nlm:affiliation>Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing, 210096, China.</nlm:affiliation></affiliation></author><author><name sortKey="Fu, Dafang" sort="Fu, Dafang" uniqKey="Fu D" first="Dafang" last="Fu">Dafang Fu</name><affiliation><nlm:affiliation>Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing, 210096, China. fdf@seu.edu.cn.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Environmental science and pollution research international</title><idno type="eISSN">1614-7499</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Agriculture (MeSH)</term><term>China (MeSH)</term><term>Environmental Monitoring (MeSH)</term><term>Fertilizers (analysis)</term><term>Lakes (MeSH)</term><term>Mycorrhizae (growth & development)</term><term>Nitrogen (analysis)</term><term>Oryza (MeSH)</term><term>Soil (MeSH)</term><term>Soil Microbiology (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Fertilizers</term><term>Nitrogen</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>China</term><term>Soil</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Agriculture</term><term>Environmental Monitoring</term><term>Lakes</term><term>Oryza</term><term>Soil Microbiology</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Arbuscular mycorrhizal (AM) fungi were of importance in mitigating soil erosion, which was highly influenced by biotic and abiotic factors, such as host plant growth and soil nutrient. To investigate the impact of nitrogen (N) fertilization on seasonal variance in AM colonization and soil erosion, we conducted a field experiment with rice cultivation under four N fertilizer levels (0 kg N ha<sup>-1</sup>, 270 kg N ha<sup>-1</sup>, 300 kg N ha<sup>-1</sup>, and 375 kg N ha<sup>-1</sup> plus organic fertilizers) in the Taihu Lake region, China. We investigated AM colonization before rice transplantation, during rice growth, and after rice harvest. We also assessed soil splash erosion of intact soil cores sampled at tillering and after rice harvest. We found that AM colonization (indicated by percentage of root length colonization) varied from 15 to 73%, which was attributed to rice growth, N fertilization, and their interaction. Soil loss due to splash erosion was cut down by organic N fertilizer at tillering, while higher inorganic N fertilization significantly increased soil loss after rice harvest. Additionally, we found significantly negative relationships of AM colonization to soil loss but positive relationships to soil aggregate stability. We highlighted the potential role of AM fungi in decreasing soil erosion and suggested that high N fertilization should be considered carefully when seeking after high yields.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">31352598</PMID><DateCompleted><Year>2019</Year><Month>12</Month><Day>06</Day></DateCompleted><DateRevised><Year>2020</Year><Month>04</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1614-7499</ISSN><JournalIssue CitedMedium="Internet"><Volume>26</Volume><Issue>27</Issue><PubDate><Year>2019</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Environmental science and pollution research international</Title><ISOAbbreviation>Environ Sci Pollut Res Int</ISOAbbreviation></Journal><ArticleTitle>Nitrogen fertilization altered arbuscular mycorrhizal fungi abundance and soil erosion of paddy fields in the Taihu Lake region of China.</ArticleTitle><Pagination><MedlinePgn>27987-27998</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s11356-019-06005-0</ELocationID><Abstract><AbstractText>Arbuscular mycorrhizal (AM) fungi were of importance in mitigating soil erosion, which was highly influenced by biotic and abiotic factors, such as host plant growth and soil nutrient. To investigate the impact of nitrogen (N) fertilization on seasonal variance in AM colonization and soil erosion, we conducted a field experiment with rice cultivation under four N fertilizer levels (0 kg N ha<sup>-1</sup>, 270 kg N ha<sup>-1</sup>, 300 kg N ha<sup>-1</sup>, and 375 kg N ha<sup>-1</sup> plus organic fertilizers) in the Taihu Lake region, China. We investigated AM colonization before rice transplantation, during rice growth, and after rice harvest. We also assessed soil splash erosion of intact soil cores sampled at tillering and after rice harvest. We found that AM colonization (indicated by percentage of root length colonization) varied from 15 to 73%, which was attributed to rice growth, N fertilization, and their interaction. Soil loss due to splash erosion was cut down by organic N fertilizer at tillering, while higher inorganic N fertilization significantly increased soil loss after rice harvest. Additionally, we found significantly negative relationships of AM colonization to soil loss but positive relationships to soil aggregate stability. We highlighted the potential role of AM fungi in decreasing soil erosion and suggested that high N fertilization should be considered carefully when seeking after high yields.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Shujuan</ForeName><Initials>S</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-8313-659X</Identifier><AffiliationInfo><Affiliation>Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing, 210096, China. zhangshujuan525@sina.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yu</LastName><ForeName>Jiazheng</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing, 210096, China.</Affiliation></AffiliationInfo></Author><Author 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