Abstract
 Modeling the Florida Commercial Citrus Grove Infrastructure within a GIS Track: Agriculture Author(s): David Johnson NASS is modernizing its biennial Florida commercial citrus tree census methodology. Unchanged over 40 years, the work has been accomplished using film-based aerial photography for delineating citrus acreage and construction of survey maps. As such, each survey cycle laboriously requires flying new imagery, drawing grove boundaries, and updating a tabular database including tree counts and varieties. Additionally, limited spatial analysis is possible with the traditional system. ArcGIS in combination with digital orthorectified imagery has shown to be an efficient tool for creating a permanent yet easily updatable digital database of citrus groves. This presentation will discuss how ArcGIS is being used as a core for building the "grove layer." Particular focus will be on components available within the personal geodatabase including utilizing the one-to-many relational database, topology rules, and annotation layers. Also to be discussed is the ability of non-GIS fluent staff to adopt and undertake digitizing, database management, and map production. David Johnson USDA/National Agricultural Statistic Service Research and Development Division 3251 Old Lee Highway, suite 305 Fairfax , VA 22030 US Phone: 703 877-8000 Fax: 703 877-8044 E-mail: dave_johnson@nass.usda.gov |
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