摘要
土地退化已成为全球性重大的环境问题之一,中国是一个土地退化十分严重的国家,松嫩平原的盐碱荒漠化严重制约农牧业的可持续发展。因此,应用新技术、新方法对农业生态环境进行研究和管理是一项迫切的任务。文章提出农业生态环境的新概念,建立了农业生态环境系统模型,进行模拟研究。由于该方法在信息存储、管理和应用方面存在较大的局限性,笔者继而建立了农业生态环境信息系统模型,扩大对空间信息的应用。但该信息系统缺乏信息共享的功能,而且不能对海量的信息进行空间化、数字化和一体化的管理。笔者以多学科的理论和多种技术方法为基础,借鉴数字地球的研究成果,研制了吉林西部农业生态环境数字信息系统。该系统具有存储、管理海量空间数据的功能和信息共享功能,可在统一的用户界面下进行农业生态环境评价、预测、仿真和规划等方面的系列、连续研究,并可实现模拟结果的可视化。该系统具有扩充性、移植性等优点,因此,具有推广价值。
In the past half century, land degradation has become a global environmental problem. China is extremely troubled by land degradation Land salinitation and desertification have seriously restricted agriculture and husbandry development in the Songnen plain. The authors have long been engaged in agricultural ecological-environment researches in which the authors have applied the traditional method, the environment simulation, the information system and the digitization technology. Under the support of geosciences, information science and computer science, the Digital Earth and the other related theory, method and technique, we have constructed a digital information system for agricultural ecological-environment in the west of Jilin province. The core of the system is the spatial database. The digital information system has many functions, including enormous spatial data memory and management, environment assessment, forecast, and simulation, programruing and decision-making. The expansibility and transplantability are the main merits of the system. This article prominently introduces recent progress in the agricultural ecological-environment research.
出处
《地学前缘》
EI
CAS
CSCD
北大核心
2008年第2期280-290,共11页
Earth Science Frontiers
基金
国家自然科学基金项目(40273047,40572170)
教育部博士点基金项目(20050183056)
关键词
农业生态环境
数字信息系统
GIS二次开发
自动化模拟
agricultural ecological-environment system
digital information system
GIS further development
automatic simulation
作者简介
林年丰（1932-），男，教授，博士生导师，生态环境地质与信息数字管理。E-mail：tangjie@jlu．edu．cn
