基于空间建模语言的普氏原羚生存能力模型的构建

为揭示青海湖地区普氏原羚的生存能力,建立普氏原羚生存能力空间模型,分为狼捕食模块、普氏原羚生存模块、人类活动及政策模块、食物丰富度模块和羊生长模块。普氏原羚生存能力模型基于空间建模语言实现,采用SME中的SML语言标准。利用空间建模语言直观反映模型的层级关系、模型与空间的关系、空间数据与时间数据的融合以及模型的可视化模拟和预测。

Construction of Viability Model of Przewalski's Gazelle Based on Spatial Modeling Language

In order to intuitively reflect hierarchical relationship of the model,the fusion between spatial data and temporal data,the interaction between spatial data and the model,and visual simulation and prediction of the model,a viability model of Przewalski's Gazelle is established in Qinghai Lake region.The model includes Wolf Predation module,Przewalski's Gazelle Population module,Human Activities and Policy module,the Food Abundance module and Sheep Growth module.The primary aim of this paper is to introduce the Spatial Modeling Language(SML) into the viability model.The SML provides spatial operation and analysis methods,data interface and dynamic modeling methods based on spatial-temporal model.The important steps in building the viability model of Przewalski's Gazelle through the SML as follows:Firstly,to clarify relationships between module and module,tier relations between the unit model and the integration model.Secondly,to transform established models into equation files containing a series of mathematical functions and parameters.Thirdly,to transform mathematical viability model of Przewalski's Gazelle into the standard SML interface.Finally,to transform SML file into C object file by code generate program.The SML can support the spatial-temporal consistency,standardization,reusable system interface of model,and spatial operations and analysis methods for the viability model of Przewalski's Gazelle.It widely applies in ecological environment and expands the application of spatial analysis in integration level of model.