文献类型： 外文期刊
作者： Tianhong, L 1 ; Yanxin, S 2 ; An, X 2 ;
作者机构： 1.Peking Univ, Minist Educ, Dept Environm Engn, Key Lab Water & Sediment Sci, Beijing 100871, Peoples R China
2.Peking Univ, Minist Educ, Dept Environm Engn, Key Lab Water & Sediment Sci, Beijing 100871, Peoples R China; Beijing Acad Agr & Forestry Sci, Inst Plant Nutrient & Resources, Beijing 100089, Peoples R China
关键词： geographical information system;fertilizing models;integration;minimum unit;precision agriculture
期刊名称：ENVIRONMENTAL MODELLING & SOFTWARE （ 影响因子：5.288； 五年影响因子：6.036 ）
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收录情况： SCI
摘要： As an integral aspect of precision agriculture, scientific fertilization which aims to produce high crop yields with little fertilizer and the minimum adverse impact on the environment can not be realized without fertilizing models. Fertilizing models on a large scale carry more practical value in the process of agriculture activities. Using the concept of minimum unit that has been successfully used in other aspects of geo-sciences, this paper adopted an embedding method to integrate fertilizing models with a self-developed Geographical Information System named SMIS. The main functions and data organization of SMIS are presented. With the integrated system, model initialization can be easily performed through a graphical user interface, and model calculation and results presentation are dynamically linked with graphics and their corresponding attribute, which also carries the advantages of promptness and easy operation. The method proved successful and useful when applied to Xuxinzhuang town, an agriculture dominated town in the north part of Tongzhou district, Beijing of China. It therefore holds great potential for extension to other agriculture areas, so as to serve more local farmers in the scientific fertilization of crops.
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