national geographic information system

基本解释

Using Geographic Information System(GIS), the change of landscape pattern in Zhangjiajie National Forest Park during 1990—2000 was studied.
利用地理信息系统（GIS）技术，研究1990—2000年张家界国家森林公园景观格局的变化。
This study deals with application of databases on the national agricultural schistosomiasis control and the design of Geographic Information System (G1S).
阐述了全国农业血防数据库与地理图形系统的设计与实现。
The paper presents the effects of Wenzhou segment of Zhuji-Yongjia Highway on the physiognomy and vegetation in Nanxijiang national scenic spot, using Geographic Information System(GIS).
运用地理信息系统（GIS）技术，分析了诸永高速公路温州段对楠溪江国家级风景区地貌与植被的影响。
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