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Programming and Application of Producing Area Environmental GIS for Nuisance Free Agricultural Products

Author: XiaYongQiu
Tutor: YuSuJun
School: Southwest Jiaotong University
Course: Environmental Engineering
Keywords: Nuisance Free Agricultural Products Geographic Information System forecast evaluation object-oriented database system integration
CLC: X820
Type: Master's thesis
Year: 2005
Downloads: 231
Quote: 2
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Abstract


A new task making programming for Nuisance Free Agricultural Products has faced to the administrative department of agriculture as well as of environment since China joined GATT for which the markets both home and abroad have required that the most of agricultural products produced in China be characterized by "green". A set of Producing Area Environmental GIS for Nuisance Free Agricultural Products (PAEGIS) was developed by applying GIS techniques to the appraisement of producing area environmental conditions.The object-oriented method was preferred that all data required by the system was treated as "object" including vector map completed through Mapgis6.5, environmental model set, method base, and chart gallery. Technically, the programming language chosen as anterior extremity tool in building PAEGIS was Visual Basic.Net. With the approach of component object model and through the groupware developed under Mapobjects, the features of GIS were permeated into PAEGIS, resulting an effective system that is characterized by the ability of visiting Access data base and of transferring calculating software in DDE.Two main functional modules contained in PAEGIS are Producing Area Environment Forecast Information System (PAEFIS), which is designed to calculate the concentration attenuation of pollutants from air or water-body medium, and Producing Area Environmental Evaluation Geographic Information System (PAEEGIS), which according to the values of composite index studied out, evaluates automatically the range against producing area environment criterion with the output of digital map.Expediently, PAEFIS can plot pollutant concentration attenuation graph in two-dimension or three-dimension, and manage the feedback data through technology of database. Through integrating GIS technology

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CLC: > Environmental science, safety science > Environmental Quality Assessment and Environmental Monitoring > Analysis and Evaluation of Environmental Quality > General issues
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