Crop Production |
Crop Pattern |
Crop Yield |
Soil Management | Precision Farming |
Relevant Products |
Interactive online mapping with XML for agriculture information system at district level
Asst. Prof. in Civil Engg.
Dept. Vasavi College of Engg., Hyderabad
Director, Global Info Sciences,
Agriculture Officer, Dept. of Agriculture
Govt. of Andhra Pradesh, Hyderabad
The capabilities of many Web mapping products in 1999 are different from those available just last year. A major error in selecting a Web mapping solution is in the implicit view that Web mapping is simply an extension of existing enterprise GIS/desktop mapping activities; this is not the case. Web mapping solutions are directed at a different audience than GIS/desktop mapping packages. The level of expertise required, training to be expected and intensity of involvement are much different. This is a key distinction, and Web mapping developers need to keep the user base’s characteristics in mind if a site is to meet its goals.
An essential aspect to view while developing a web based GIS application that the application should not take longer time in displaying both spatial and attribute data over the browser. The application so deployed need to interact or provide the information according to users’ preference and the same time data integrity and security to be maintained. A GIS application developed on ArcView can easily be converted to XML and deployed on any web server, which is readily accessible for users of IE 5.x later. The maps interactively changes its pattern / shape depending on query available on the browser window.
Agriculture Information System provides a new approach to agricultural chemical applications. This approach involves development of tools that will regulate the amount of crop input applied to a field based on the actual need. A key component to this approach is the utilisation of GIS technology. GIS provides the visual integration of all the data sources tied to an agricultural field and allows farmers to identify the within-field variability of their systems. This approach uses GIS to incorporate spatial information such as soil type, type of crop, and existing nutrient level of the soil with the agricultural chemical application process. The addition of spatial information to the process allows the farmer to consider within-field variation to adjust the amount of chemicals that are being applied based on what is actually needed at the sub field level.
Geographical Information System (GIS) is an information system that is specially designed for handling spatial (or geographical) data. It combines a set of interrelated software components that create, edit, manipulate, analyse and display data both in text and graphic forms. GIS supports spatial analysis and modeling within the discipline of geography (e.g. location, proximity and spatial distribution), so that it becomes a vital tool for modern geography.
Web GIS is a geographic information system providing environmental, social economic and geographic information using technologies though the Internet. This technology has evolved to provide citizens and activists with a tool allowing people to overlay data layers and understanding possible relationships between them. One of the more confusing aspects to selecting the best Web mapping product is that everything is interlocked. For example, the speed of the Internet connection affects the amount of data transferred; the type of data also affects transfer volumes, which, in turn, also influences the speed, etc.
Fig 1: Agriculture Information of Mahaboob Nagar District on IE 5.0 Browser
AxioMap (Applications of XML for Interactive Online MAPping) is a software package for publishing and viewing interactive maps on the World Wide Web. It is based on XML, the eXtensible Markup Language, and an emerging standard for data interchange on the Internet. It can be used as on of the extensions of ArcView 3.x or later to allow quick and easy conversion of ArcView projects into a series of XML files with map information and an interactive map viewer that can display, in IE 5.x or later Web browser, map information retrieved from these XML files.
Land is an indispensable resource for the most essential human activities: it provides the basis for agriculture and forest production, water catchments, recreation, and settlement. The characterisation of land resources includes components of climate, soils, landform, and present land cover. Adequate agricultural exploitation of the climatic potentials and maintenance of land productivity largely depend on soil fertility and the management of soils on an ecologically sustained basis. The composition of soil associations is described in terms of percentage occurrence of soil units, soil phases and textures. The digital soil information constitutes part of the land resources database and is kept together with other geographic information (i.e., elevation, terrain slopes, distance to coast, protected areas, land cover, and administrative divisions).