Spatial-temporal patterns of vegetation dynamics and their relationships to climate variations in Qinghai Lake Basin using MODIS time-series data

Auteur(s) et Affiliation(s)

GUO, W.

School of Human Settlements and Civil Engineering, Jiatong Univ., Xi'an, Chine

NI, X.

School of Human Settlements and Civil Engineering, Jiatong Univ., Xi'an, Chine

JING, D.

School of Human Settlements and Civil Engineering, Jiatong Univ., Xi'an, Chine

LI, S.

School of Urban and Resources Sciences, Northwest Univ., Xi'an, Chine

Description :
The AA. focused on the integration and application of multi-methods and spatial analysis techniques in GIS to study the spatio-temporal variation of vegetation dynamics and to explore the vegetation change mechanism. The correlations between Enhance Vegetation Index (EVI) and climate factors at different time scales were calculated for each pixel including monthly, seasonal and annual scales respectively in Qinghai Lake Basin from the year of 2001 to 2012. The primary objectives are to reveal when, where and why the vegetation change so as to support better understanding of terrestrial response to global change as well as the useful information and techniques for wise regional ecosystem management practices. Based on geo-statistical analysis, the autumn precipitation has a strong correlation with the next spring EVI values in the whole region.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2014, vol. 24, n°. 6, p. 1009-1021, nombre de pages : 13, Références bibliographiques : 41 ref.

Date :
2014

Editeur :
Pays édition : Chine

Langue :
Anglais