New Zealand Journal of Agricultural Research abstracts

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Application of a spatial-temporal data model based on graph theory for the Field Parcel Updating Geographical Information System (FPUGIS)

Yang Lin-Nan^1,2,*

Peng Lin²

Zhang Li-Min²

Zhang Li-Lian²

¹School of Life Science and Technology
University of Electronic Science and Technology
PO Box 610054
Chengdu, Sichuan, China

²College of Basic Science and Information Engineering
Yunnan Agricultural University
PO Box 650201
Kunming, Yunnan, China

^*Author for correspondence: lny5400@sina.com

Abstract This paper applies the spatial-temporal data model to describe geographical information changes among field parcels. A field parcel is a representative geographical element of farmland. It is the fundamental element in agricultural production in which crop planning, crop management and crop evaluation are carried out. Field parcels are the object of study in this paper. The spatial-temporal characteristics of field parcel geographical information are analysed into graph-based, spatial-temporal data models and are applied to the Field Parcel Updating Geographical Information System (FPUGIS), a system used to store update information. This new method is a vast improvement on the old system due to its simple and integrated data structure.

Keywords field parcel; graph theory; spatial-temporal data model

A07106; Online publication date 8 February 2008; Received and accepted on 10 August 2007

New Zealand Journal of Agricultural Research, 2007, Vol. 50: 895–902
0028–8233/07/5005–0895 © The Royal Society of New Zealand 2007

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