A GIS for irrigation management

百花草

Abstract
This work describes the development, operational functionalities and spatial modeling applications of a Geographic Information
Systems (GIS)-based irrigation management system, to be used by irrigation consortia and local governmental institutions. The
system provides tools for the exploration of spatially-referenced databases relevant for irrigation and the evaluation of irrigation
scenarios under different soil, climatic and management conditions. The irrigation water management system makes use of ArcView
GIS and the Avenue programming language for customization of GIS applications and design of new tools for modeling irrigation
water requirements and identifying of areas with water deficit. Irrigation requirements can be estimated taking into account different
scenarios of cropping pattern, climatic conditions (from dry to wet year), applied irrigation method, volume of water available for
irrigation and hydraulic characteristics of the water distribution system. The irrigation water management system runs on different
scales of both irrigation (from irrigation field to irrigation consortia) and administrative (from municipality to region) units. The
integration of spatial climatic and soil data is based on the ‘‘false-raster’’ format, a vector layer composed of regular square grid
cells. The size of simulation units is a function of the surface area under consideration which means that the exploration of GIS
database and development of irrigation scenarios provide more detailed data at field and municipality scale and less number of
information at consortia and regional scales. An example of operational functionality of the GIS-based irrigation water management
system is given for the Apulia region, in Southern Italy.
2003 Elsevier Science Ltd. All rights reserved.
Keywords: Geographic information systems (GIS); Crop water requirements; Irrigation water requirements; Irrigation planning and management

wwxx

进来看看，谢谢分享。