Geographical information system for integrated management of agriculture and the environment

[摘要] ENGLISH ABSTRACT: The agricultural sector plays a valuable role in the South African economy. However, agriculture is embedded in the natural environment. The research problem revolves around the lack of an information management system, capable of integrated agricultural and environmental management to promote sustainable agricultural development on farm level. This study aimed to develop a spatial information management system to aid with integrated agricultural and environmental management. The study area consisted of a seven-farm production unit, Howbill Properties, which provided the necessary agricultural and environmental elements for this study.Spatial data requirements were identified by unpacking the relevant imperatives directing integrated agricultural and environmental management. Data was collected with a recreational outdoor GPS device, digitised from remotely sensed images and obtained from various sources. Spatial data consisted of infrastructure data, such as water pumps, power lines, and fruit orchard boundaries, whereas environmental spatial data consisted of natural resource data, and topographic data.The study further details the process of selecting the necessary components for an enterprise GIS and building the system. PostgreSQL with the PostGIS spatial extension was selected as the spatial database and QGIS was selected as the desktop GIS application.It was found that the prototype integrated spatial information system could be effectively applied to assist integrated agricultural and environmental management. The prototype spatial information system was able to serve the needs of novice to advanced users. However, insufficient spatial data were identified as a limitation, and spatial data should be improved and updated regularly.

[发布机构] Stellenbosch University