Mots-clés
Analyse des groupes Analyse en composantes principales Bassin-versant Chine Formation herbacée Forêt Luonan Palynologie Pollen Shaanxi Typologie Végétation China Cluster analysis Forest Grassland Palynology Pollen Principal components analysis Shaanxi Typology Vegetation Watershed Análisis de grupos Análisis en componentes principales Bosque Chensi China Cuenca hidrográfica Formación herbácea Palinología Polen Tipología VegetaciónRelationship between surface pollen assemblages and vegetation in Luonan Basin, Eastern Qinling Mountains, Central China
Auteur(s) et Affiliation(s)
ZHANG, W.
School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, Chine
LI, C.
State Key Lab. of Lake Science and Environment, Inst. of Geography and Limnology, CAS, Nanjing, Chine
LU, H.
School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, Chine
TIAN, X.
College of Life Sciences, Shaanxi Normal Univ., Xi'an, Chine
ZHANG, H.
School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, Chine
LEI, F.
School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, Chine
TANG, L.
Nanjing Inst. of Geology and Paleontology, Nanjing, Chine
Description :
In the catchment of South Luohe River, in the transitional zone between south and north China, 40 surface samples under 10 vegetation types were collected to reveal the relationship between pollen assemblages and vegetation. The results show that the surface pollen assemblages reflect the vegetation quite well. Cluster analysis and principal components analysis of pollen assemblages can distinguish forest and non-forest vegetation well. The former method is better at separating pine and mixed forests, while the latter is more stable and could better differentiate farmland and other non-forest area. The first axis of PCA mainly reflects the humidity.
Type de document :
Article de périodique
Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2014, vol. 24, n°. 3, p. 427-445, nombre de pages : 19, Références bibliographiques : 67 ref.
Date :
2014
Editeur :
Pays édition : Chine
Langue :
Anglais
Anglais
Droits :
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Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)