信息资源开发理论的农业信息资源开发和利用.doc

信息资源开发理论的农业信息资源开发和利用 基于信息资源开发理论的农业信息资源开发与利用研究
【摘要】:本文论述了MAPGIS地理信息系统软件在农业土壤养分管理和施肥技术上的运用特点,分析了我国测土配方施肥对信息技术的要求、发展趋势,提出了目前测土配方施肥信息化处理的要求、任务和内容,结合实例分析了该系统通过农业与信息技术的紧密结合,在土壤测试及推荐施肥模型研究的基础上,可以满足土壤养分管理、测土平衡施肥及土壤肥料信息服务的需求。测土配方施肥中信息技术的运用主要包括:(1)应用数据库技术和地理信息系统,按照标准处理和整理土壤肥料等数据和相关图件,建立属性数据库和空间数据库与管理系统;(2)利用地理信息系统和基础数据库,结合应用模型,建立耕地地力评价系统、施肥决策系统等测土配方施肥应用系统;(3)将网络技术与已建立的应用系统结合起来,实现数据库的共享和测土配方施肥的网络化。
【关键词】:地理信息系统;土壤;肥料;配方施肥
【Abstract】:This paper discussed the characteristic of information technology applied on soil nutrient management and fertilizing technology in occident,analyzed the requests of soil determination and prescription fertilization for information technology and it developing trend in china,pointed out the requests,tasks and contents of information processing in it at present in our analyzed the existing problems at agricultural technology extension station in application of information technology in soil determination and prescription fertilization was mainly concluded as follow,(1)applying the database technology and GIS,and processing the data about soil and fertilizer and the maps connected according to the standard,to establish the attribute database and space database,and management system.(2)using GIS and bining the application,to establish application system such as tilth estimate system an d applying decision system.(3)work technology to realize database shari