Ecophysiological response of aspen (Populus tremuloides) and jack pine (Pinus banksiana) to atmospheric nitrogen deposition on reconstructed boreal forest soils in the Athabasca oil sands region.
Identifieur interne : 000A11 ( Main/Exploration ); précédent : 000A10; suivant : 000A12Ecophysiological response of aspen (Populus tremuloides) and jack pine (Pinus banksiana) to atmospheric nitrogen deposition on reconstructed boreal forest soils in the Athabasca oil sands region.
Auteurs : T L Hemsley [Canada] ; M D Mackenzie [Canada] ; S A Quideau [Canada]Source :
- The Science of the total environment [ 1879-1026 ] ; 2019.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Azote, Polluants atmosphériques.
- composition chimique : Atmosphère, Sol.
- physiologie : Pinus, Populus.
- Alberta, Champs de pétrole et de gaz, Forêts, Surveillance de l'environnement, Taïga.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Air Pollutants, Nitrogen.
- chemical , chemistry : Soil.
- geographic : Alberta.
- chemistry : Atmosphere.
- physiology : Pinus, Populus.
- Environmental Monitoring, Forests, Oil and Gas Fields, Taiga.
Abstract
Oil and gas extraction in the Athabasca Oil Sands Region of northeastern Alberta, Canada has increased anthropogenic nitrous oxide (NOx) and ammonia (NH3) emissions over the past three decades, leading to a potential increase in N deposition. Deposition on reclaimed sites was hypothesized to be higher than in surrounding boreal forests, but had not been quantified. The objective of this study was to assess the implications of this potentially increased deposition on reclaimed aspen (Populus tremuloides Michx.) and pine (Pinus banksiana Lamb.) ecosystems through the use of several N status indicators, including N deposition, total and available concentrations in plants and soils, and δ15N values in deposition and plants and soils. Atmospheric N deposition, which was dominated by ammonium (NH4+), averaged 24 kg N ha-1 year-1 as bulk precipitation and 6 kg N ha-1 year-1 as throughfall. Increased N deposition influenced the N cycle in both aspen and pine stands. Aspen appeared to be actively biocycling N as indicated by a closed N cycle, resulting in minimal N losses. Whereas the N cycle in pine may be more open as indicated by the dominance of soil nitrate (NO3-), and enrichment of 15N in available soil NH4+, root and foliar N. Therefore, we suggest that pine stands on reclamation sites may be at kinetic N saturation where the rate of N inputs exceeds vegetation and soil N net sinks, and do not require additional N fertilizer inputs.
DOI: 10.1016/j.scitotenv.2019.07.350
PubMed: 31465928
Affiliations:
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Electronic address: mdm7@ualberta.ca.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Renewable Resources, 7-51 General Services Building, University of Alberta, Edmonton, AB T6G 2H1</wicri:regionArea><wicri:noRegion>AB T6G 2H1</wicri:noRegion></affiliation></author><author><name sortKey="Quideau, S A" sort="Quideau, S A" uniqKey="Quideau S" first="S A" last="Quideau">S A Quideau</name><affiliation wicri:level="1"><nlm:affiliation>Department of Renewable Resources, 7-51 General Services Building, University of Alberta, Edmonton, AB T6G 2H1, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Renewable Resources, 7-51 General Services Building, University of Alberta, Edmonton, AB T6G 2H1</wicri:regionArea><wicri:noRegion>AB T6G 2H1</wicri:noRegion></affiliation></author></analytic><series><title level="j">The Science of the total environment</title><idno type="eISSN">1879-1026</idno><imprint><date when="2019" type="published">2019</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Air Pollutants (analysis)</term><term>Alberta (MeSH)</term><term>Atmosphere (chemistry)</term><term>Environmental Monitoring (MeSH)</term><term>Forests (MeSH)</term><term>Nitrogen (analysis)</term><term>Oil and Gas Fields (MeSH)</term><term>Pinus (physiology)</term><term>Populus (physiology)</term><term>Soil (chemistry)</term><term>Taiga (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Alberta (MeSH)</term><term>Atmosphère (composition chimique)</term><term>Azote (analyse)</term><term>Champs de pétrole et de gaz (MeSH)</term><term>Forêts (MeSH)</term><term>Pinus (physiologie)</term><term>Polluants atmosphériques (analyse)</term><term>Populus (physiologie)</term><term>Sol (composition chimique)</term><term>Surveillance de l'environnement (MeSH)</term><term>Taïga (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Air Pollutants</term><term>Nitrogen</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Soil</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Alberta</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Azote</term><term>Polluants atmosphériques</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Atmosphere</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Atmosphère</term><term>Sol</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Pinus</term><term>Populus</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Pinus</term><term>Populus</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Environmental Monitoring</term><term>Forests</term><term>Oil and Gas Fields</term><term>Taiga</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Alberta</term><term>Champs de pétrole et de gaz</term><term>Forêts</term><term>Surveillance de l'environnement</term><term>Taïga</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Oil and gas extraction in the Athabasca Oil Sands Region of northeastern Alberta, Canada has increased anthropogenic nitrous oxide (NO<sub>x</sub>) and ammonia (NH<sub>3</sub>) emissions over the past three decades, leading to a potential increase in N deposition. Deposition on reclaimed sites was hypothesized to be higher than in surrounding boreal forests, but had not been quantified. The objective of this study was to assess the implications of this potentially increased deposition on reclaimed aspen (Populus tremuloides Michx.) and pine (Pinus banksiana Lamb.) ecosystems through the use of several N status indicators, including N deposition, total and available concentrations in plants and soils, and δ<sup>15</sup>N values in deposition and plants and soils. Atmospheric N deposition, which was dominated by ammonium (NH<sub>4</sub><sup>+</sup>), averaged 24 kg N ha<sup>-1</sup> year<sup>-1</sup> as bulk precipitation and 6 kg N ha<sup>-1</sup> year<sup>-1</sup> as throughfall. Increased N deposition influenced the N cycle in both aspen and pine stands. Aspen appeared to be actively biocycling N as indicated by a closed N cycle, resulting in minimal N losses. Whereas the N cycle in pine may be more open as indicated by the dominance of soil nitrate (NO<sub>3</sub><sup>-</sup>), and enrichment of <sup>15</sup>N in available soil NH<sub>4</sub><sup>+</sup>, root and foliar N. Therefore, we suggest that pine stands on reclamation sites may be at kinetic N saturation where the rate of N inputs exceeds vegetation and soil N net sinks, and do not require additional N fertilizer inputs.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">31465928</PMID><DateCompleted><Year>2020</Year><Month>01</Month><Day>17</Day></DateCompleted><DateRevised><Year>2020</Year><Month>01</Month><Day>17</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-1026</ISSN><JournalIssue CitedMedium="Internet"><Volume>696</Volume><PubDate><Year>2019</Year><Month>Dec</Month><Day>15</Day></PubDate></JournalIssue><Title>The Science of the total environment</Title><ISOAbbreviation>Sci Total Environ</ISOAbbreviation></Journal><ArticleTitle>Ecophysiological response of aspen (Populus tremuloides) and jack pine (Pinus banksiana) to atmospheric nitrogen deposition on reconstructed boreal forest soils in the Athabasca oil sands region.</ArticleTitle><Pagination><MedlinePgn>133544</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0048-9697(19)33463-1</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.scitotenv.2019.07.350</ELocationID><Abstract><AbstractText>Oil and gas extraction in the Athabasca Oil Sands Region of northeastern Alberta, Canada has increased anthropogenic nitrous oxide (NO<sub>x</sub>) and ammonia (NH<sub>3</sub>) emissions over the past three decades, leading to a potential increase in N deposition. Deposition on reclaimed sites was hypothesized to be higher than in surrounding boreal forests, but had not been quantified. The objective of this study was to assess the implications of this potentially increased deposition on reclaimed aspen (Populus tremuloides Michx.) and pine (Pinus banksiana Lamb.) ecosystems through the use of several N status indicators, including N deposition, total and available concentrations in plants and soils, and δ<sup>15</sup>N values in deposition and plants and soils. Atmospheric N deposition, which was dominated by ammonium (NH<sub>4</sub><sup>+</sup>), averaged 24 kg N ha<sup>-1</sup> year<sup>-1</sup> as bulk precipitation and 6 kg N ha<sup>-1</sup> year<sup>-1</sup> as throughfall. Increased N deposition influenced the N cycle in both aspen and pine stands. Aspen appeared to be actively biocycling N as indicated by a closed N cycle, resulting in minimal N losses. Whereas the N cycle in pine may be more open as indicated by the dominance of soil nitrate (NO<sub>3</sub><sup>-</sup>), and enrichment of <sup>15</sup>N in available soil NH<sub>4</sub><sup>+</sup>, root and foliar N. Therefore, we suggest that pine stands on reclamation sites may be at kinetic N saturation where the rate of N inputs exceeds vegetation and soil N net sinks, and do not require additional N fertilizer inputs.</AbstractText><CopyrightInformation>Copyright © 2019 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Hemsley</LastName><ForeName>T L</ForeName><Initials>TL</Initials><AffiliationInfo><Affiliation>Department of Renewable Resources, 7-51 General Services Building, University of Alberta, Edmonton, AB T6G 2H1, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>MacKenzie</LastName><ForeName>M D</ForeName><Initials>MD</Initials><AffiliationInfo><Affiliation>Department of Renewable Resources, 7-51 General Services Building, University of Alberta, Edmonton, AB T6G 2H1, Canada. Electronic address: mdm7@ualberta.ca.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Quideau</LastName><ForeName>S A</ForeName><Initials>SA</Initials><AffiliationInfo><Affiliation>Department of Renewable Resources, 7-51 General Services Building, University of Alberta, Edmonton, AB T6G 2H1, Canada.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2019</Year><Month>08</Month><Day>08</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Sci Total Environ</MedlineTA><NlmUniqueID>0330500</NlmUniqueID><ISSNLinking>0048-9697</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000393">Air Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical><Chemical><RegistryNumber>N762921K75</RegistryNumber><NameOfSubstance UI="D009584">Nitrogen</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000393" MajorTopicYN="N">Air Pollutants</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000416" MajorTopicYN="N" Type="Geographic">Alberta</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001272" MajorTopicYN="N">Atmosphere</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D004784" MajorTopicYN="Y">Environmental Monitoring</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D065928" MajorTopicYN="Y">Forests</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009584" MajorTopicYN="N">Nitrogen</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D061329" MajorTopicYN="N">Oil and Gas Fields</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D028223" MajorTopicYN="N">Pinus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D066188" MajorTopicYN="N">Taiga</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Boreal forest</Keyword><Keyword MajorTopicYN="N">Canopy cover</Keyword><Keyword MajorTopicYN="N">Nitrogen cycle</Keyword><Keyword MajorTopicYN="N">Nitrogen deposition</Keyword><Keyword MajorTopicYN="N">Pinus banksiana Lamb.</Keyword><Keyword MajorTopicYN="N">Populus tremuloides Michx.</Keyword><Keyword MajorTopicYN="N">Soil NO(3)(−) availability</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2019</Year><Month>02</Month><Day>26</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2019</Year><Month>07</Month><Day>03</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2019</Year><Month>07</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2019</Year><Month>8</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>1</Month><Day>18</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2019</Year><Month>8</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">31465928</ArticleId><ArticleId IdType="pii">S0048-9697(19)33463-1</ArticleId><ArticleId IdType="doi">10.1016/j.scitotenv.2019.07.350</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Hemsley, T L" sort="Hemsley, T L" uniqKey="Hemsley T" first="T L" last="Hemsley">T L Hemsley</name></noRegion><name sortKey="Mackenzie, M D" sort="Mackenzie, M D" uniqKey="Mackenzie M" first="M D" last="Mackenzie">M D Mackenzie</name><name sortKey="Quideau, S A" sort="Quideau, S A" uniqKey="Quideau S" first="S A" last="Quideau">S A Quideau</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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