Journal of Jilin University(Earth Science Edition) ›› 2017, Vol. 47 ›› Issue (3): 916-924.doi: 10.13278/j.cnki.jjuese.201703305

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A Spatio-Temporal Process Expression Model for Land Cover Based on Process Object

Li Yinchao, Li Jiansong   

  1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
  • Received:2016-08-31 Online:2017-05-26 Published:2017-05-26
  • Supported by:
    Supported by the National Key Technologies R & D Program of China for the 12th Five-Year Plan (2012BAJ15B04)

Abstract: Spatio-temporal (ST) process expression is the basis of ST data analysis, pattern mining and other ST research hotspots. This paper presents a model of ST process expression based on processes objects, and describes methods of detection and management for ST process, in the point of view of land use/cover change (LUCC) ST data analysis and change pattern mining. Land cover patches are taken as ST objects in the model. The self-changes of a single patch and transformations between patches are expressed in the form of the ST process of the ST objects. We can express a wider range of ST changes by grouping ST processes of patches, so that the model can connect the patches changes to landscape pattern changes. This model can be used in areal geographic entity ST evolution simulation and change pattern mining. To verify the validity of the model, land cover data of Heilongjiang Daxing'anling area is used for case study, including ST process object creation, data retrieval and analysis.

Key words: spatio-temporal change, land cover, spatio-temporal process object

CLC Number: 

  • P208
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