Received date: 2003-04-11
Revised date: 2004-03-01
Online published: 2004-07-25
Supported by
National Natural Science Foundation of China, No.40271008
Land use change data are mainly derived from land use data of different periods through statistical analysis or spatial analysis in GIS environment, and those land use data usually came from remote sensing images, land survey, historical maps or regional statistical information. Because of the errors in those land use data, land use change data are in dissimilar precision, but the available papers on land use change have not paid more attention to the point, but gave some descriptions of the error of land use data. Aimed at the error characteristics of land use change data, error analysis method was firstly discussed in this paper, and then the impacts from influencing factors, including the percentage of land use change and the error of periodical land use data, were analyzed in detail to a certain extent. The result showed that high precision of land use change data cannot always be guaranteed by high precision of land use data, which also depends on the error direction and the percentage of changed area. The results imply that the error of land use change data have been ignored at present and should be improved in the process of land classification, image collection, processing, interpretation and analysis.
Key words： land use change; data; error
ZHU Huiyi . The Error Characteristics of Land Use Change Data[J]. Acta Geographica Sinica, 2004 , 59(4) : 615 -620 . DOI: 10.11821/xb200404016
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