Serveur d'exploration sur le peuplier

Attention, ce site est en cours de développement !
Attention, site généré par des moyens informatiques à partir de corpus bruts.
Les informations ne sont donc pas validées.

[Water utilization characteristics of the degraded poplar shelterbelts in Zhangbei, Hebei, China.]

Identifieur interne : 000B94 ( Main/Exploration ); précédent : 000B93; suivant : 000B95

[Water utilization characteristics of the degraded poplar shelterbelts in Zhangbei, Hebei, China.]

Auteurs : Huan Zhang [République populaire de Chine] ; Jun Cao [République populaire de Chine] ; Hua Bing Wang [République populaire de Chine] ; Bo Song [République populaire de Chine] ; Guo Dong Jia [République populaire de Chine] ; Zi Qiang Liu [République populaire de Chine] ; Xin Xiao Yu [République populaire de Chine] ; Jia Zeng [République populaire de Chine]

Source :

RBID : pubmed:29797868

Descripteurs français

English descriptors

Abstract

In Zhangbei County, Hebei Province, poplar-dominated shelterbelts are degraded to different extents. Water availability is the main limiting factor for plant survival in arid areas. The purpose of this study was to reveal the relationship between water availability and poplar degradation. Based on the hydrogen and oxygen stable isotope techniques, we explored the water sources of Populus simonii under different degradation degrees by comparing the isotopic values of P. simonii xylem water with that in potential water source, and calculated the utilization ratio of each water source. The results showed that the water sources of poplar trees varied with degradation degree. The water sources of P. simonii gradually transferred from the deep layer to the surface layer with the increases of degradation. P. simonii with no degradation mainly absorbed soil water in the range of 320-400 cm, with the utilization rate being 25.1%. P. simonii with slight degradation mainly used soil water at depth of 120-180, 180-240 and 240-320 cm. The total utilization rate of three layers was close to 50.0%, with less utilization of water from other layers. The moderately degraded P. simonii mainly used soil water at depth of 20-40, 40-60 and 60-80 cm. The utilization rate of each layer was 17.5%-20.9%, and the contribution rate of soil water under 120 cm was less than 10.0%. The severely degraded P. simonii mainly used water from surface soil layer (0-20 cm), with the utilization rate being 30.4%, which was significantly higher than that of other water sources. The water sources of poplar shelter forests were gradually shallower during the process of degradation. However, the low soil water content in the shallow layer could not meet the normal water demand of poplar, which would accelerate the degradation and even decline of poplar.

DOI: 10.13287/j.1001-9332.201805.026
PubMed: 29797868


Affiliations:


Links toward previous steps (curation, corpus...)


Le document en format XML

<record>
<TEI>
<teiHeader>
<fileDesc>
<titleStmt>
<title xml:lang="en">[Water utilization characteristics of the degraded poplar shelterbelts in Zhangbei, Hebei, China.]</title>
<author>
<name sortKey="Zhang, Huan" sort="Zhang, Huan" uniqKey="Zhang H" first="Huan" last="Zhang">Huan Zhang</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Cao, Jun" sort="Cao, Jun" uniqKey="Cao J" first="Jun" last="Cao">Jun Cao</name>
<affiliation wicri:level="1">
<nlm:affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Miyun Gardening and Greening Bureau, Beijing 101500</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Wang, Hua Bing" sort="Wang, Hua Bing" uniqKey="Wang H" first="Hua Bing" last="Wang">Hua Bing Wang</name>
<affiliation wicri:level="1">
<nlm:affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Miyun Gardening and Greening Bureau, Beijing 101500</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Song, Bo" sort="Song, Bo" uniqKey="Song B" first="Bo" last="Song">Bo Song</name>
<affiliation wicri:level="1">
<nlm:affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Miyun Gardening and Greening Bureau, Beijing 101500</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Jia, Guo Dong" sort="Jia, Guo Dong" uniqKey="Jia G" first="Guo Dong" last="Jia">Guo Dong Jia</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Liu, Zi Qiang" sort="Liu, Zi Qiang" uniqKey="Liu Z" first="Zi Qiang" last="Liu">Zi Qiang Liu</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Yu, Xin Xiao" sort="Yu, Xin Xiao" uniqKey="Yu X" first="Xin Xiao" last="Yu">Xin Xiao Yu</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Zeng, Jia" sort="Zeng, Jia" uniqKey="Zeng J" first="Jia" last="Zeng">Jia Zeng</name>
<affiliation wicri:level="1">
<nlm:affiliation>Qingdao No.2 Middle School of Shandong Province, Qingdao 266000, Shandong, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Qingdao No.2 Middle School of Shandong Province, Qingdao 266000, Shandong</wicri:regionArea>
<wicri:noRegion>Shandong</wicri:noRegion>
</affiliation>
</author>
</titleStmt>
<publicationStmt>
<idno type="wicri:source">PubMed</idno>
<date when="2018">2018</date>
<idno type="RBID">pubmed:29797868</idno>
<idno type="pmid">29797868</idno>
<idno type="doi">10.13287/j.1001-9332.201805.026</idno>
<idno type="wicri:Area/Main/Corpus">000E17</idno>
<idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000E17</idno>
<idno type="wicri:Area/Main/Curation">000E17</idno>
<idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000E17</idno>
<idno type="wicri:Area/Main/Exploration">000E17</idno>
</publicationStmt>
<sourceDesc>
<biblStruct>
<analytic>
<title xml:lang="en">[Water utilization characteristics of the degraded poplar shelterbelts in Zhangbei, Hebei, China.]</title>
<author>
<name sortKey="Zhang, Huan" sort="Zhang, Huan" uniqKey="Zhang H" first="Huan" last="Zhang">Huan Zhang</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Cao, Jun" sort="Cao, Jun" uniqKey="Cao J" first="Jun" last="Cao">Jun Cao</name>
<affiliation wicri:level="1">
<nlm:affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Miyun Gardening and Greening Bureau, Beijing 101500</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Wang, Hua Bing" sort="Wang, Hua Bing" uniqKey="Wang H" first="Hua Bing" last="Wang">Hua Bing Wang</name>
<affiliation wicri:level="1">
<nlm:affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Miyun Gardening and Greening Bureau, Beijing 101500</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Song, Bo" sort="Song, Bo" uniqKey="Song B" first="Bo" last="Song">Bo Song</name>
<affiliation wicri:level="1">
<nlm:affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Miyun Gardening and Greening Bureau, Beijing 101500</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Jia, Guo Dong" sort="Jia, Guo Dong" uniqKey="Jia G" first="Guo Dong" last="Jia">Guo Dong Jia</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Liu, Zi Qiang" sort="Liu, Zi Qiang" uniqKey="Liu Z" first="Zi Qiang" last="Liu">Zi Qiang Liu</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Yu, Xin Xiao" sort="Yu, Xin Xiao" uniqKey="Yu X" first="Xin Xiao" last="Yu">Xin Xiao Yu</name>
<affiliation wicri:level="1">
<nlm:affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083</wicri:regionArea>
<placeName>
<settlement type="city">Pékin</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Zeng, Jia" sort="Zeng, Jia" uniqKey="Zeng J" first="Jia" last="Zeng">Jia Zeng</name>
<affiliation wicri:level="1">
<nlm:affiliation>Qingdao No.2 Middle School of Shandong Province, Qingdao 266000, Shandong, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Qingdao No.2 Middle School of Shandong Province, Qingdao 266000, Shandong</wicri:regionArea>
<wicri:noRegion>Shandong</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series>
<title level="j">Ying yong sheng tai xue bao = The journal of applied ecology</title>
<idno type="ISSN">1001-9332</idno>
<imprint>
<date when="2018" type="published">2018</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>China (MeSH)</term>
<term>Forests (MeSH)</term>
<term>Populus (MeSH)</term>
<term>Soil (chemistry)</term>
<term>Water (MeSH)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr">
<term>Chine (MeSH)</term>
<term>Eau (MeSH)</term>
<term>Forêts (MeSH)</term>
<term>Populus (MeSH)</term>
<term>Sol (composition chimique)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en">
<term>Soil</term>
</keywords>
<keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr">
<term>Sol</term>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>China</term>
<term>Forests</term>
<term>Populus</term>
<term>Water</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Chine</term>
<term>Eau</term>
<term>Forêts</term>
<term>Populus</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">In Zhangbei County, Hebei Province, poplar-dominated shelterbelts are degraded to different extents. Water availability is the main limiting factor for plant survival in arid areas. The purpose of this study was to reveal the relationship between water availability and poplar degradation. Based on the hydrogen and oxygen stable isotope techniques, we explored the water sources of Populus simonii under different degradation degrees by comparing the isotopic values of P. simonii xylem water with that in potential water source, and calculated the utilization ratio of each water source. The results showed that the water sources of poplar trees varied with degradation degree. The water sources of P. simonii gradually transferred from the deep layer to the surface layer with the increases of degradation. P. simonii with no degradation mainly absorbed soil water in the range of 320-400 cm, with the utilization rate being 25.1%. P. simonii with slight degradation mainly used soil water at depth of 120-180, 180-240 and 240-320 cm. The total utilization rate of three layers was close to 50.0%, with less utilization of water from other layers. The moderately degraded P. simonii mainly used soil water at depth of 20-40, 40-60 and 60-80 cm. The utilization rate of each layer was 17.5%-20.9%, and the contribution rate of soil water under 120 cm was less than 10.0%. The severely degraded P. simonii mainly used water from surface soil layer (0-20 cm), with the utilization rate being 30.4%, which was significantly higher than that of other water sources. The water sources of poplar shelter forests were gradually shallower during the process of degradation. However, the low soil water content in the shallow layer could not meet the normal water demand of poplar, which would accelerate the degradation and even decline of poplar.</div>
</front>
</TEI>
<pubmed>
<MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM">
<PMID Version="1">29797868</PMID>
<DateCompleted>
<Year>2018</Year>
<Month>10</Month>
<Day>15</Day>
</DateCompleted>
<DateRevised>
<Year>2018</Year>
<Month>10</Month>
<Day>15</Day>
</DateRevised>
<Article PubModel="Print">
<Journal>
<ISSN IssnType="Print">1001-9332</ISSN>
<JournalIssue CitedMedium="Print">
<Volume>29</Volume>
<Issue>5</Issue>
<PubDate>
<Year>2018</Year>
<Month>May</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>[Water utilization characteristics of the degraded poplar shelterbelts in Zhangbei, Hebei, China.]</ArticleTitle>
<Pagination>
<MedlinePgn>1381-1388</MedlinePgn>
</Pagination>
<ELocationID EIdType="doi" ValidYN="Y">10.13287/j.1001-9332.201805.026</ELocationID>
<Abstract>
<AbstractText>In Zhangbei County, Hebei Province, poplar-dominated shelterbelts are degraded to different extents. Water availability is the main limiting factor for plant survival in arid areas. The purpose of this study was to reveal the relationship between water availability and poplar degradation. Based on the hydrogen and oxygen stable isotope techniques, we explored the water sources of Populus simonii under different degradation degrees by comparing the isotopic values of P. simonii xylem water with that in potential water source, and calculated the utilization ratio of each water source. The results showed that the water sources of poplar trees varied with degradation degree. The water sources of P. simonii gradually transferred from the deep layer to the surface layer with the increases of degradation. P. simonii with no degradation mainly absorbed soil water in the range of 320-400 cm, with the utilization rate being 25.1%. P. simonii with slight degradation mainly used soil water at depth of 120-180, 180-240 and 240-320 cm. The total utilization rate of three layers was close to 50.0%, with less utilization of water from other layers. The moderately degraded P. simonii mainly used soil water at depth of 20-40, 40-60 and 60-80 cm. The utilization rate of each layer was 17.5%-20.9%, and the contribution rate of soil water under 120 cm was less than 10.0%. The severely degraded P. simonii mainly used water from surface soil layer (0-20 cm), with the utilization rate being 30.4%, which was significantly higher than that of other water sources. The water sources of poplar shelter forests were gradually shallower during the process of degradation. However, the low soil water content in the shallow layer could not meet the normal water demand of poplar, which would accelerate the degradation and even decline of poplar.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y">
<Author ValidYN="Y">
<LastName>Zhang</LastName>
<ForeName>Huan</ForeName>
<Initials>H</Initials>
<AffiliationInfo>
<Affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Cao</LastName>
<ForeName>Jun</ForeName>
<Initials>J</Initials>
<AffiliationInfo>
<Affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Wang</LastName>
<ForeName>Hua Bing</ForeName>
<Initials>HB</Initials>
<AffiliationInfo>
<Affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Song</LastName>
<ForeName>Bo</ForeName>
<Initials>B</Initials>
<AffiliationInfo>
<Affiliation>Miyun Gardening and Greening Bureau, Beijing 101500, China.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Jia</LastName>
<ForeName>Guo Dong</ForeName>
<Initials>GD</Initials>
<AffiliationInfo>
<Affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Liu</LastName>
<ForeName>Zi Qiang</ForeName>
<Initials>ZQ</Initials>
<AffiliationInfo>
<Affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Yu</LastName>
<ForeName>Xin Xiao</ForeName>
<Initials>XX</Initials>
<AffiliationInfo>
<Affiliation>College of Water and Soil Conservation, Beijing Forestry University/Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Zeng</LastName>
<ForeName>Jia</ForeName>
<Initials>J</Initials>
<AffiliationInfo>
<Affiliation>Qingdao No.2 Middle School of Shandong Province, Qingdao 266000, Shandong, China.</Affiliation>
</AffiliationInfo>
</Author>
</AuthorList>
<Language>chi</Language>
<PublicationTypeList>
<PublicationType UI="D016428">Journal Article</PublicationType>
</PublicationTypeList>
<VernacularTitle>张北地区退化杨树防护林的水分利用特征.</VernacularTitle>
</Article>
<MedlineJournalInfo>
<Country>China</Country>
<MedlineTA>Ying Yong Sheng Tai Xue Bao</MedlineTA>
<NlmUniqueID>9425159</NlmUniqueID>
<ISSNLinking>1001-9332</ISSNLinking>
</MedlineJournalInfo>
<ChemicalList>
<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D012987">Soil</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>059QF0KO0R</RegistryNumber>
<NameOfSubstance UI="D014867">Water</NameOfSubstance>
</Chemical>
</ChemicalList>
<CitationSubset>IM</CitationSubset>
<MeshHeadingList>
<MeshHeading>
<DescriptorName UI="D002681" MajorTopicYN="N">China</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D065928" MajorTopicYN="N">Forests</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D032107" MajorTopicYN="Y">Populus</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014867" MajorTopicYN="Y">Water</DescriptorName>
</MeshHeading>
</MeshHeadingList>
<OtherAbstract Type="Publisher" Language="chi">
<AbstractText>在张北地区,以杨树为主的防护林出现不同程度的退化现象,水分是干旱区植物生存的主要限制因子,为揭示水分与防护林退化的关系,本文基于稳定氢氧同位素技术,通过对比小叶杨枝条水与潜在水源的同位素值,探究不同退化程度下小叶杨的水分来源及其对各水源的利用比率.结果表明: 不同退化程度的杨树林水分来源不同,随退化程度的加深,小叶杨的水分来源从深层逐渐向表层转移.无退化的小叶杨主要利用320~400 cm的土壤水,利用率为25.1%;轻度退化的小叶杨主要利用120~180、180~240和240~320 cm的土壤水,对这3层的利用率总和将近50.0%,而对其他土壤水利用较少;中度退化的小叶杨主要利用20~40、40~60和60~80 cm的土壤水,对这3层土壤水每层利用率在17.5%~20.9%范围,对120 cm及其以下的土壤水利用率均低于10.0%;而重度退化的小叶杨主要利用0~20 cm的表层土壤水分,利用率为30.4%,明显高于其他水源.杨树防护林在衰退过程中的水分来源逐渐变浅,而林地浅层土壤较低的土壤含水量无法满足杨树的正常水分需求,加速了杨树林的退化和死亡.</AbstractText>
</OtherAbstract>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="N">Populus simonii</Keyword>
<Keyword MajorTopicYN="N">degree of degradation</Keyword>
<Keyword MajorTopicYN="N">hydrogen and oxygen isotopes</Keyword>
<Keyword MajorTopicYN="N">water source</Keyword>
</KeywordList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="entrez">
<Year>2018</Year>
<Month>5</Month>
<Day>26</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2018</Year>
<Month>5</Month>
<Day>26</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2018</Year>
<Month>10</Month>
<Day>16</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">29797868</ArticleId>
<ArticleId IdType="doi">10.13287/j.1001-9332.201805.026</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>République populaire de Chine</li>
</country>
<settlement>
<li>Pékin</li>
</settlement>
</list>
<tree>
<country name="République populaire de Chine">
<noRegion>
<name sortKey="Zhang, Huan" sort="Zhang, Huan" uniqKey="Zhang H" first="Huan" last="Zhang">Huan Zhang</name>
</noRegion>
<name sortKey="Cao, Jun" sort="Cao, Jun" uniqKey="Cao J" first="Jun" last="Cao">Jun Cao</name>
<name sortKey="Jia, Guo Dong" sort="Jia, Guo Dong" uniqKey="Jia G" first="Guo Dong" last="Jia">Guo Dong Jia</name>
<name sortKey="Liu, Zi Qiang" sort="Liu, Zi Qiang" uniqKey="Liu Z" first="Zi Qiang" last="Liu">Zi Qiang Liu</name>
<name sortKey="Song, Bo" sort="Song, Bo" uniqKey="Song B" first="Bo" last="Song">Bo Song</name>
<name sortKey="Wang, Hua Bing" sort="Wang, Hua Bing" uniqKey="Wang H" first="Hua Bing" last="Wang">Hua Bing Wang</name>
<name sortKey="Yu, Xin Xiao" sort="Yu, Xin Xiao" uniqKey="Yu X" first="Xin Xiao" last="Yu">Xin Xiao Yu</name>
<name sortKey="Zeng, Jia" sort="Zeng, Jia" uniqKey="Zeng J" first="Jia" last="Zeng">Jia Zeng</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Bois/explor/PoplarV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000B94 | SxmlIndent | more

Ou

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000B94 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Bois
   |area=    PoplarV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     pubmed:29797868
   |texte=   [Water utilization characteristics of the degraded poplar shelterbelts in Zhangbei, Hebei, China.]
}}

Pour générer des pages wiki

HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i   -Sk "pubmed:29797868" \
       | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd   \
       | NlmPubMed2Wicri -a PoplarV1 

Wicri

This area was generated with Dilib version V0.6.37.
Data generation: Wed Nov 18 12:07:19 2020. Site generation: Wed Nov 18 12:16:31 2020