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Modeling and Simulating of Spatial Spread of Cross-Boundary Crop Diseases

文献类型： 会议论文

第一作者： Jingyin Zhao

作者： Jingyin Zhao 1 ; Dongsheng Wang 1 ; Jiaogen Zhou 2 ; Xu Chen 1 ;

作者机构： 1.Center of Information Technology in Agriculture, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China

2.Institute of Subtropical Agriculture, The Chinese Academy of Science, Changsha 410125, China

关键词： complex network;spatial model;crop epidemics

会议名称： IFIP WG 5.14 international conference on computer and computing technologies in agriculture

主办单位：

页码： 101-108

摘要： Understanding of the timing, orientation and transmission mode of crop disease spread is very important in prevention and treatment of crop diseases, especially for cross-border crop diseases. In this paper, we introduced the complex network approach to model trans-boundary spread of diseases. In the model, the process of crop disease spread is characterized as a network, where patches of crop planting are abstracted into nodes, and the diseases spread from a node to neighboring nodes. The edge between two nodes is connected, only if the Euclidean distance between two nodes does not exceed the radius of disease spread. We obtained wheat-growing distribution data of Beijing in 2007 by image classification, and further abstracted patches of wheat growing into network nodes, and finally constructed the disease spread network to analyze its topology characteristics. The experimental results show the heavy influence of spatial constraint on disease spread.

分类号： s1

  • 相关文献

[1]Modeling and Simulating of Spatial Spread of Cross-Boundary Crop Diseases. Jiaogen Zhou,Xu Chen,Jingyin Zhao,Dongsheng Wang. 2013

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