[Nitrogen cycling and its dynamic feature in fine roots of poplar trees and herbs].
Identifieur interne : 004155 ( Main/Exploration ); précédent : 004154; suivant : 004156[Nitrogen cycling and its dynamic feature in fine roots of poplar trees and herbs].
Auteurs : Shihua Fan [République populaire de Chine] ; Peizhi Li ; Lihua Wang ; Siming XuSource :
- Ying yong sheng tai xue bao = The journal of applied ecology [ 1001-9332 ] ; 2004.
Descripteurs français
- KwdFr :
- MESH :
- métabolisme : Ammoniac, Azote, Populus, Racines de plante.
- Biomasse, Saisons, Température.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Ammonia, Nitrogen.
- metabolism : Plant Roots, Populus.
- Biomass, Seasons, Temperature.
Abstract
The nitrogen cycling and its dynamic feature in fine roots of poplar trees and herbs were studied in Shenyang of Liaoning Province. The results showed that the nitrogen content in the standing biomass of fine roots of poplar trees and herbs was 20.3 kg.hm-2, and its net accumulation was 10.0 kg.hm-2. With regard to the biological cycling of nitrogen, the annual uptake was 14.6 kg.hm-2 of which, the retention and the return was 9.6 and 5.1 kg.hm-2.yr-1 respectively, and the turnover period was 4 year. The relationship between total nitrogen in roots of poplar trees, and herbs and the available nitrogen in soil was also studied, which indicated that there were similar dynamic trends between total nitrogen in herb roots and the NH3-N in soil in growth season. The total nitrogen in fine roots of poplar trees was positively related to the biomass.
PubMed: 15227985
Affiliations:
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Le document en format XML
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The results showed that the nitrogen content in the standing biomass of fine roots of poplar trees and herbs was 20.3 kg.hm-2, and its net accumulation was 10.0 kg.hm-2. With regard to the biological cycling of nitrogen, the annual uptake was 14.6 kg.hm-2 of which, the retention and the return was 9.6 and 5.1 kg.hm-2.yr-1 respectively, and the turnover period was 4 year. The relationship between total nitrogen in roots of poplar trees, and herbs and the available nitrogen in soil was also studied, which indicated that there were similar dynamic trends between total nitrogen in herb roots and the NH3-N in soil in growth season. The total nitrogen in fine roots of poplar trees was positively related to the biomass.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15227985</PMID><DateCompleted><Year>2004</Year><Month>07</Month><Day>13</Day></DateCompleted><DateRevised><Year>2016</Year><Month>10</Month><Day>18</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">1001-9332</ISSN><JournalIssue CitedMedium="Print"><Volume>15</Volume><Issue>3</Issue><PubDate><Year>2004</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Ying yong sheng tai xue bao = The journal of applied ecology</Title><ISOAbbreviation>Ying Yong Sheng Tai Xue Bao</ISOAbbreviation></Journal><ArticleTitle>[Nitrogen cycling and its dynamic feature in fine roots of poplar trees and herbs].</ArticleTitle><Pagination><MedlinePgn>387-90</MedlinePgn></Pagination><Abstract><AbstractText>The nitrogen cycling and its dynamic feature in fine roots of poplar trees and herbs were studied in Shenyang of Liaoning Province. The results showed that the nitrogen content in the standing biomass of fine roots of poplar trees and herbs was 20.3 kg.hm-2, and its net accumulation was 10.0 kg.hm-2. With regard to the biological cycling of nitrogen, the annual uptake was 14.6 kg.hm-2 of which, the retention and the return was 9.6 and 5.1 kg.hm-2.yr-1 respectively, and the turnover period was 4 year. The relationship between total nitrogen in roots of poplar trees, and herbs and the available nitrogen in soil was also studied, which indicated that there were similar dynamic trends between total nitrogen in herb roots and the NH3-N in soil in growth season. The total nitrogen in fine roots of poplar trees was positively related to the biomass.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fan</LastName><ForeName>Shihua</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>College of Science, Northwestern University, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. shfan@mail.neu.edu.cn</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Peizhi</ForeName><Initials>P</Initials></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Lihua</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Xu</LastName><ForeName>Siming</ForeName><Initials>S</Initials></Author></AuthorList><Language>chi</Language><PublicationTypeList><PublicationType UI="D004740">English Abstract</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>China</Country><MedlineTA>Ying Yong Sheng Tai Xue Bao</MedlineTA><NlmUniqueID>9425159</NlmUniqueID><ISSNLinking>1001-9332</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>7664-41-7</RegistryNumber><NameOfSubstance UI="D000641">Ammonia</NameOfSubstance></Chemical><Chemical><RegistryNumber>N762921K75</RegistryNumber><NameOfSubstance UI="D009584">Nitrogen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000641" MajorTopicYN="N">Ammonia</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018533" MajorTopicYN="N">Biomass</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013696" MajorTopicYN="N">Temperature</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2004</Year><Month>7</Month><Day>2</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2004</Year><Month>7</Month><Day>14</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2004</Year><Month>7</Month><Day>2</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">15227985</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>République populaire de Chine</li></country></list><tree><noCountry><name sortKey="Li, Peizhi" sort="Li, Peizhi" uniqKey="Li P" first="Peizhi" last="Li">Peizhi Li</name><name sortKey="Wang, Lihua" sort="Wang, Lihua" uniqKey="Wang L" first="Lihua" last="Wang">Lihua Wang</name><name sortKey="Xu, Siming" sort="Xu, Siming" uniqKey="Xu S" first="Siming" last="Xu">Siming Xu</name></noCountry><country name="République populaire de Chine"><noRegion><name sortKey="Fan, Shihua" sort="Fan, Shihua" uniqKey="Fan S" first="Shihua" last="Fan">Shihua Fan</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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