Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2003.11a
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- Pages.274-276
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- 2003
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- 1226-9743(pISSN)
Using Spatial EPIC Model to Simulate Corn and Wheat Productivity: the Case of the North CHINA
- Yang, Peng (Institute of Industrial Science, University of Tokyo) ;
- Tan, Guoxin (Center for Spatial Information Science, University of Tokyo) ;
- Shibasaki, Ryosuke (Center for Spatial Information Science, University of Tokyo)
- Published : 2003.11.03
Abstract
The traditional crop productivity simulations based on crop models are normally site-specific. To simulate regional crop productivity, the spatial crop model is developed in this study by integrating Geographical Information System (GIS) with Erosion Productivity Impact Calculator (EPIC) model. The integration applied a loose coupling approach. Data are exchanged using ASCII or binary data format between GIS and EPIC model without a common user interface. The spatial EPIC model is conducted to simulate the average corn and wheat productivity of 1980s in North China. The results show that the simulation accuracy of the spatial EPIC model is acceptable. The simulation accuracy can be improved by using the detailed crop management information, such as irrigation, fertilizer and tillage schedule.