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- Title
Development of Novel QAPEX Analysis System Using Open-Source GIS.
- Authors
Koo, Jayoung; Kim, Jonggun; Ryu, Jicheol; Shin, Dong-Suk; Lee, Seoro; Kim, Min-Kyeong; Jeong, Jaehak; Lim, Kyoung-Jae
- Abstract
The Agricultural Policy/Environmental eXtender (APEX) model has been used for farm/small watershed management, and the ArcAPEX interface was developed using the ArcGIS extension. However, the interface requires a paid license and limits dynamic applications that reflect various agricultural farming practices. In this study, a novel APEX model interface using Quantum GIS, the QAPEX analysis system, was developed by incorporating open-source-based GIS software for the simulation of water quality impacts of various best management practices reflecting local farming activities. The watershed delineation process running on the QAPEX interface is more flexible than that on the ArcAPEX interface, which renders simulations on hydrology and water quality with considerable precision. The newly developed system can be used to visually interpret simulation results (e.g., flow and load duration curve functions). Therefore, the open-source-based model can be used to derive data for sustainable agricultural policies, with a focus on the field-level application of management practices.
- Subjects
WATERSHED management; GEOGRAPHIC information system software; WATER quality; AGRICULTURAL policy; SIMULATION software; AGRICULTURAL technology
- Publication
Sustainability (2071-1050), 2022, Vol 14, Issue 13, p8199
- ISSN
2071-1050
- Publication type
Article
- DOI
10.3390/su14138199