基于Kriging插值法的土壤磷素空间变异图建立及分析  

Establishment and analysis of soil phosphorus mapping using Kriging interpolation method

作　　者：陈航[1] 谢丽[1] 姚玉霞[1] 

机构地区：[1]吉林农业大学信息技术学院,吉林长春130118

出　　处：《农业网络信息》2008年第10期142-144,共3页Agriculture Network Information

基　　金：国家863项目"玉米精准作业系统研究玉应用";国际科技部项目"玉米生产数字化技术成果转化";"玉米精准施肥专家系统研究玉应用";吉林省重点项目"精准农业(玉米)生产智能决策系统"

摘　　要：建立土壤养分空间数据库,并进行空间变异分析,已成为推进精准农业实施的前提和基础。本文结合国家"863"项目"玉米精准作业系统研究与应用"的要求,运用GPS(全球定位系统)采集地块信息,结合GIS(地理信息系统)技术,进行数据的处理,创建数据库、地图等操作,并应用Kriging(克里格)插值法生成土壤磷素养分空间变异图。通过对该区域土壤磷素养分空间变异特征的分析,为合理施肥、实行养分的分区管理、为指导农民科学种田,提供理论依据。Establishing soil nutrient space data library and carrying out space variation analysis are premise and basis for carrying accurate agriculture forward. This thesis aims to link the requirement of National 863 Program to research and application of corn accurate operating system, apply GPS to collect massif information, combine GIS technology, process data, establish data library and draw maps, while applying Kriging value-inserting method to produce space variation diagram of soil phosphorus element. According to the analysis of space variation features of soil phosphorus in this region, we are to be provided with scientific basis on applying fertilizer properly, to carry out region-delimited management of nutrient and to guide presents in farming.

关 键 词：土壤磷素养分 空间变异 GPS GIS KRIGING插值 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]