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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Positive and negative terrains on northern Shaanxi Loes Plateau

Auteur(s) et Affiliation(s)

ZHOU, Y.
Key lab. of Virtual Geographic Environment of Ministry of Edication, Normal Univ., Nanjing, Chine
TANG, G.
Key lab. of Virtual Geographic Environment of Ministry of Edication, Normal Univ., Nanjing, Chine
YANG, X.
Key lab. of Virtual Geographic Environment of Ministry of Edication, Normal Univ., Nanjing, Chine
XIAO, C.
Inst. of RS and GIS, Peking Univ., Beijing, Chine
ZHANG, Y.
School of Foreign Languages, Central South Univ., Changsha, Chine
LUO, M.
College of Land and Resources, China West Normal Univ., Nanchong, Chine


Description :
The Loess positive and negative terrains (P-N terrains), which are widely distributed on the Loess Plateau, are discussed by introducing its characteristic, demarcation as well as extraction method from high-resolution Digital Elevation Models. P-N terrains of 48 geomorphological units in different parts of Shaanxi Loess Plateau are extracted accurately. Then 6 indicators for depicting the geomorphologic landscape and spatial configuration characteristic of P-N terrains are proposed. A continuous change of P-N terrains from south to north in Shaanxi Loess Plateau shows an obvious spatial difference of Loess landforms. The P-N terrains participant landform classification method increases validity of the result, especially in the Loess tableland, Loess tableland-ridge and the Loess low-hill area.


Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2010, vol. 20, n°. 1, p. 64-76, nombre de pages : 13, Références bibliographiques : 40 ref.

Date :
2010

Editeur :
Pays édition : Chine

Langue :
Anglais
Droits :
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