A method for choice of optimum scale on land use monitoring in Tarim River Basin

Auteur(s) et Affiliation(s)

ZHAO, J.

Xinjiang Institute of Ecology and Geography, CAS, Urumqi, Chine

Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine

CHEN, X.

Xinjiang Institute of Ecology and Geography, CAS, Urumqi, Chine

BAO, A.

Xinjiang Institute of Ecology and Geography, CAS, Urumqi, Chine

ZHANG, C.

Urban Inst. of Geotechnical Investigation Surveying and Mapping, Xinjiang, Urumqi, Chine

SHI, W.

China Inst. of Water Resources and Research, Beijing, Chine

Description :
The aim of selecting an optimal scale is to determine the grid cell for the monitoring of land-use and to investigate the scale law of land area in the Tarim River Basin in Xinjiang, which will allow a maximum diversity of the land types in unit grid area, facilating the ground experiment design and the remote survey in the future. Selecting the suitable scale consisted of 3 steps : 1) area mode is derived from statistics of frequency distribution of areas of the land types in the Tarim River Basin; 2) according to the mode of the area, the normalized scale variances (NSV) was calculated and the suitable scale of the ecological monitoring was discussed; 3) the diversity indices and the fractal dimension figured to supplement the methods and validate the results of NSV.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2009, vol. 19, n°. 3, p. 340-350, nombre de pages : 11, Références bibliographiques : 1,5 p.

Date :
2009

Editeur :
Pays édition : Chine

Langue :
Anglais