PoplarV1, Main, Exploration, bibRecord, 002C37

[Spatial heterogeneity of plant community species diversity in Ejina Oasis at the lower reaches of Heihe River].

Identifieur interne : 002C37 ( Main/Exploration ); précédent : 002C36; suivant : 002C38

[Spatial heterogeneity of plant community species diversity in Ejina Oasis at the lower reaches of Heihe River].

Auteurs : Teng-Fei Yu [République populaire de Chine] ; Qi Feng ; Jian-Hua Si ; Hai-Yang Xi ; Li-Juan Chen

Source :

Ying yong sheng tai xue bao = The journal of applied ecology [ 1001-9332 ] ; 2011.

RBID : pubmed:22097354

Descripteurs français

KwdFr :
- Biodiversité (MeSH), Chine (MeSH), Climat désertique (MeSH), Conservation des ressources naturelles (MeSH), Dynamique des populations (MeSH), Développement des plantes (MeSH), Plantes (classification), Populus (croissance et développement), Rivières (MeSH), Tamaricaceae (croissance et développement), Écosystème (MeSH).
MESH :
- croissance et développement : Populus, Tamaricaceae.
- Biodiversité, Chine, Climat désertique, Conservation des ressources naturelles, Dynamique des populations, Développement des plantes, Plantes, Rivières, Écosystème.
Wicri :
- geographic : République populaire de Chine.

English descriptors

KwdEn :
- Biodiversity (MeSH), China (MeSH), Conservation of Natural Resources (MeSH), Desert Climate (MeSH), Ecosystem (MeSH), Plant Development (MeSH), Plants (classification), Population Dynamics (MeSH), Populus (growth & development), Rivers (MeSH), Tamaricaceae (growth & development).
MESH :
- geographic : China.
- classification : Plants.
- growth & development : Populus, Tamaricaceae.
- Biodiversity, Conservation of Natural Resources, Desert Climate, Ecosystem, Plant Development, Population Dynamics, Rivers.

Abstract

By the method of geostatistics, this paper studied the spatial heterogeneity of plant community species diversity in Ejina Oasis at the lower reaches of Heihe River. In the study area, the Margalef richness index (Ma), Simpson diversity index (Ds), Shannon diversity index (H') and Pielou evenness index (J') were in normal distribution, and the coefficient of variation (CV) ranged from 55.8% to 67.8%, suggesting a moderate variability. The Ma and H' were accorded with exponential models, and the Ds and J' were accorded with spherical models. The H' had the highest extent of spatial variation, followed by Ma, J' and Ds. Within the variable range, the structural factors in the spatial variation of Ma, Ds, H', and J' were dominant, ranging from 81.1% to 93.0%. The indices changed obviously parallel to the river, with significantly high values near Dalaihubu Town (42 degrees N, 101 degrees E), and obviously low values within the strips 100 degrees-101 degrees E and 102 degrees-102 degrees 30' E, mainly including east and west Gobi and the hinterland of Badain Jaran Desert.

PubMed: 22097354

Affiliations:

République populaire de Chine

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Le document en format XML

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<author><name sortKey="Yu, Teng Fei" sort="Yu, Teng Fei" uniqKey="Yu T" first="Teng-Fei" last="Yu">Teng-Fei Yu</name>
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<term>Conservation of Natural Resources (MeSH)</term>
<term>Desert Climate (MeSH)</term>
<term>Ecosystem (MeSH)</term>
<term>Plant Development (MeSH)</term>
<term>Plants (classification)</term>
<term>Population Dynamics (MeSH)</term>
<term>Populus (growth & development)</term>
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<keywords scheme="KwdFr" xml:lang="fr"><term>Biodiversité (MeSH)</term>
<term>Chine (MeSH)</term>
<term>Climat désertique (MeSH)</term>
<term>Conservation des ressources naturelles (MeSH)</term>
<term>Dynamique des populations (MeSH)</term>
<term>Développement des plantes (MeSH)</term>
<term>Plantes (classification)</term>
<term>Populus (croissance et développement)</term>
<term>Rivières (MeSH)</term>
<term>Tamaricaceae (croissance et développement)</term>
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<term>Conservation of Natural Resources</term>
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<term>Climat désertique</term>
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<front><div type="abstract" xml:lang="en">By the method of geostatistics, this paper studied the spatial heterogeneity of plant community species diversity in Ejina Oasis at the lower reaches of Heihe River. In the study area, the Margalef richness index (Ma), Simpson diversity index (Ds), Shannon diversity index (H') and Pielou evenness index (J') were in normal distribution, and the coefficient of variation (CV) ranged from 55.8% to 67.8%, suggesting a moderate variability. The Ma and H' were accorded with exponential models, and the Ds and J' were accorded with spherical models. The H' had the highest extent of spatial variation, followed by Ma, J' and Ds. Within the variable range, the structural factors in the spatial variation of Ma, Ds, H', and J' were dominant, ranging from 81.1% to 93.0%. The indices changed obviously parallel to the river, with significantly high values near Dalaihubu Town (42 degrees N, 101 degrees E), and obviously low values within the strips 100 degrees-101 degrees E and 102 degrees-102 degrees 30' E, mainly including east and west Gobi and the hinterland of Badain Jaran Desert.</div>
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<Abstract><AbstractText>By the method of geostatistics, this paper studied the spatial heterogeneity of plant community species diversity in Ejina Oasis at the lower reaches of Heihe River. In the study area, the Margalef richness index (Ma), Simpson diversity index (Ds), Shannon diversity index (H') and Pielou evenness index (J') were in normal distribution, and the coefficient of variation (CV) ranged from 55.8% to 67.8%, suggesting a moderate variability. The Ma and H' were accorded with exponential models, and the Ds and J' were accorded with spherical models. The H' had the highest extent of spatial variation, followed by Ma, J' and Ds. Within the variable range, the structural factors in the spatial variation of Ma, Ds, H', and J' were dominant, ranging from 81.1% to 93.0%. The indices changed obviously parallel to the river, with significantly high values near Dalaihubu Town (42 degrees N, 101 degrees E), and obviously low values within the strips 100 degrees-101 degrees E and 102 degrees-102 degrees 30' E, mainly including east and west Gobi and the hinterland of Badain Jaran Desert.</AbstractText>
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[Spatial heterogeneity of plant community species diversity in Ejina Oasis at the lower reaches of Heihe River].

[Spatial heterogeneity of plant community species diversity in Ejina Oasis at the lower reaches of Heihe River].

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki