摘要
尝试用数学方法建立一个综合的土壤肥力指标 ,并用地理信息系统 (GIS)方法对计算的结果地图化 ,结果表明 ,该方法计算的土壤综合肥力与土壤的实际状况吻合较好。该研究的另一价值在于通过GIS对田间不同区域土壤肥力实现了定量化显示 。
The fertility of soil is controlled by the concentration of some elements in soil ,such as N ,P ,K etc. ,which can be tested from soil sample.Single element such as N can be crucial to the fertility of soil,but the other elements can't be ignored .I attempt to construct a general model using mathematics to depict the fertility of soil in this paper, on the other hand, I maped the result using GIS .The result shows that it matches very well between the fertility of soil calculated from this model and the fact of the soil.The other value of this study is that the fertility of soil in different area of a field can be displayed quantificationally via GIS.All of these provide a gist for the management of fertilization.
出处
《土壤肥料》
CSCD
北大核心
2005年第2期17-20,共4页
Soils and Fertilizers
