农业生态系统安全性预警与预警系统的建立  

Review on Early-warning of Agroecosystem Security and Building of Early-warning System

作　　者：陈高潮[1] 马友华[1] 赵艳萍[1] 胡宏祥[1] 王强[1] 刘晓莉[1] 

机构地区：[1]安徽农业大学计算机科学与信息技术学院,合肥230036

出　　处：《中国农学通报》2005年第10期330-333,共4页Chinese Agricultural Science Bulletin

基　　金：合肥市科技局重点资助科研项目":基于WebGIS的农田生态安全预警系统研究"[(社)字2005-1001]

摘　　要：分析农业生态系统面临的威胁,提出农业生态系统进行安全性预警必要性,探讨了预警指标、模型和预警类型的选择和及农业生态预警系统建立等研究状况。预警指标的选择主要考虑受人类直接或间接影响后而容易发生退化的因子,主要有土壤肥力质量指标和土壤环境质量指标等;模型在生态安全预警研究中具有预测、解释和推断功能,在不同预警指标中将会采用不同的模型;预警的类型包括对农业生态系统恶化的程度和状态,趋势,速度等预警;WebGIS技术的运用为建立包括不同尺度和时间的预警,单项因子预警信息、子系统预警信息和系统总体预警提供了有力的技术支撑。This paper analyzed the problems in ago-ecosystem and necessity for necessary on the earlywarning of agro-ecosystem security. The choice, of indices, models and kinds of early-warning and the building of ago-ecology system were reviewed. The indices of early-warning were selected from the factors that are sensitive to mankind influence directly or indirectly. The indices about soil fertility and soil environment are generally included. The models have the function of predication, interpretation and deduction on the research about early-warning of ecology security. Various models are applied in different indices. The kinds of early-warning vary from the degree , state, trend and velocity of deterioration in agro-ecology. The application of WebGIS supplies power technical support for various early-warning, such as early-warning about different scale and time, single item, sub-system and total system.

关 键 词：农业生态 生态安全 预警 WEBGIS 农业生态系统 预警系统 系统安全性 WEBGIS技术 预警指标 质量指标 预警信息 间接影响 系统建立 

分 类 号：S181[农业科学—农业基础科学] F275[经济管理—企业管理]