长江科学院院报 ›› 2022, Vol. 39 ›› Issue (3): 143-150.DOI: 10.11988/ckyyb.20201210

• 信息技术应用 • 上一篇    下一篇

WaSSI-C模型GIS可视化模拟系统的设计、实现与验证

邱琴1, 孙伟1,2, 李建贵3, 古丽米拉·克孜尔别克1, 曹姗姗2   

  1. 1.新疆农业大学 计算机与信息工程学院,乌鲁木齐 830052;
    2.中国农业科学院 农业信息研究所,北京 100081;
    3.新疆农业大学 林业研究所,乌鲁木齐 830052
  • 收稿日期:2020-11-25 修回日期:2021-03-09 出版日期:2022-03-01 发布日期:2022-03-14
  • 通讯作者: 孙 伟(1978-),男,山东海阳人,副教授,博士后,博士生导师,主要从事农林3S技术、空间信息智能分析技术方面的研究。E-mail: sunwei02@caas.cn
  • 作者简介:邱 琴(1996-),女,四川达州人,硕士研究生,主要从事农林信息智能分析方面的研究。E-mail: 1207788620@qq.com
  • 基金资助:
    国家林业局948项目(2015-4-24);中国农业科学院/山东省农业科学院科技创新工程协同任务项目(CAAS-ASTIP 2016-AII);新疆高校科研计划科学研究重点项目(XJEDU2016I02)

GIS Visual Simulation System of WaSSI-C Model: Design, Implementation and Verification

QIU Qin1, SUN Wei1,2, LI Jian-gui2, GULIMILA Kezierbieke3, CAO Shan-shan2   

  1. 1. College of Computer and Information Engineering,Xinjiang Agricultural University,Urumqi 830052,China;
    2. Agricultural Information Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    3. Institute of Forestry, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2020-11-25 Revised:2021-03-09 Online:2022-03-01 Published:2022-03-14

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摘要： 为实现WaSSI-C(Water Supply Stress Index-C)模型地理信息系统(GIS)可视化模拟系统,为区域水碳资源分析和模拟决策提供模型工具,在解析WaSSI-C模型理论框架和运行机理的基础上,对模型计算过程进行模块化分解和结构化设计;采用C/S模式构建软件体系架构,基于时空数据模型设计E-R模型图,并应用Geodatabase空间数据库与SQLite关系型数据库联合管理模型参数和时空数据;在.Net开发环境下,基于ArcGIS Engine二次开发组件,使用C#语言进行混合编程,实现WaSSI-C模型GIS可视化模拟系统的功能,进而以焉耆盆地为试验对象进行应用验证。结果表明:系统同时支持文本和空间数据格式输入,能够在GIS可视化环境下自动化输出研究区月尺度蒸散、径流和总生态系统生产力等水碳耦合过程变量的模拟地图,系统模拟结果率定期R2和NS均值分别为0.83和0.81,验证期两指标均值分别为0.8和0.76,总体上显示出良好的模拟效果。系统具有简单易用、运算效率高、普适性强等特点,可为相关领域研究提供有力工具支撑,也可为生态学、水文学等专业领域模型可视化研究提供借鉴思路。

关键词: 水碳动态循环, WaSSI-C模型, 可视化, 组件式GIS, 时空模拟, 模块化

Abstract: The aim of this research is to implement the GIS visual simulation system of WaSSI-C (Water Supply Stress Index-C) model to provide model tools for regional hydro-carbon resource analysis and simulation decisions. On the basis of analyzing the theoretical framework and operation mechanism of WaSSI-C model, modular decomposition and structured design of model calculation process were carried out; software architecture was constructed by C/S mode, model diagram was designed based on spatiotemporal data model E-R, and model parameters and spatiotemporal data were managed jointly by Geodatabase spatial database and SQLite relational database. In the .Net development environment, based on the ArcGIS Engine secondary development components,hybrid programming was carried out using the C# language to realize the function of the WaSSI-C model's GIS visual simulation system. The system was applied to Yanqi Basin for verification. Results manifest that the system can automatically output the simulation map of water-carbon coupling process variables such as monthly scale evapotranspiration, runoff and total ecosystem productivity in the GIS visualization environment. The system is simple, easy to use, highly efficient and universal. The mean values of determination coefficient R2 and efficiency coefficient NS of system simulation results in calibration period are 0.83 and 0.81, respectively, and 0.8 and 0.76 in verification period. The system could serve as a powerful tool support for the research of related fields, and also offer reference for the study of model visualization in ecology and hydrology.

Key words: dynamic cycling of water-carbon resources, WaSSI-C model, visualization, component GIS, space-time simulation, modularization

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