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基于GIS的土壤养分分区管理模型研究
引用本文:白由路,金继运,等.基于GIS的土壤养分分区管理模型研究[J].中国农业科学,2001,34(1):46-50.
作者姓名:白由路  金继运
作者单位:[1]中国农业科学院土壤肥料研究所,北京100081 [2]中国农业科学院土壤肥料研究所,北京10008
基金项目:国家重点基础研究规划项目(G19990118-11)
摘    要:通过土壤网格取样、室内分析及ASI施肥推荐等方法,在地理信息系统支持下,建立了区域土壤养分分区管理模型。该模型以土壤空间变异为基础,地统计学为手段,土壤分块管理为目的,考虑了土壤的空间变异和我国农村分散经营的实际,可为土壤分管理提供合理的施肥量,也可为区域养分管理提供宏观决策。通过对河北省辛集市马兰试验区的实施与验证,在ArcInfo平台上,用土壤养分分区管理模型进行施肥推荐,同时给出整个区域的土壤养分分布图、分区土壤养分分级图、土壤养分管理图和养分施用推荐表等。它既避免了土壤养分空间变异性所造成的施肥推荐偏差,又能考虑土壤养分严重缺乏的地块,使土壤养分管理趋于更加合理。

关 键 词:土壤养分  施肥推荐  模型  地理信息系统
文章编号:0578-1752(2001)01-0046-05
修稿时间:2000年10月25

Research on the Subarea Management Model of Soil Nutrients by GIS
BAI You lu,JIN Ji yun,YANG Li ping,LIANG Ming zao.Research on the Subarea Management Model of Soil Nutrients by GIS[J].Scientia Agricultura Sinica,2001,34(1):46-50.
Authors:BAI You lu  JIN Ji yun  YANG Li ping  LIANG Ming zao
Abstract:On the platform of ArcInfo,the management model of soil nutrients can be built by grid sampling,nutrients analysis and fertilizer recommendation.The model's foundation is soil special variability,its method is geostatistics and its goal is managing the soil nutrients in subareas.This model is not only based on the soil special variability but also the facts of separate management in Chinese county.It can supply the fertilizer recommendation in small plots,it can also supply the proposals in soil nutrients management in large scale.In Malan experiment area in Hebei Province,it can draw the nutrient distribution maps,classification maps and nutrient management maps by this model.It also can supply the table of fertilizer recommendation plot by plot.Using this method to manage the soil nutrients,it can avoid the errors because of the soil special variability in fertilizer recommendation and can attend the subareas that the nutrients is deficiency.
Keywords:Soil nutrients  Fertilizer recommendation  Model  GIS
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