ABSTRACT
Timely and reliable information on nature, extent, and magnitude of the problem and spatial distribution of degraded lands is a prerequisite for planning and implementation of appropriate preventive and curative measures. An information system (IS) is an organized system for the collection, organization, storage, and communication of information. The IS consists of hardware, software, data, networks, and human resources. A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. In a hierarchical database management system (DBMS) one data item is subordinate to another one. In a network DBMS, every data item can be related to many other ones. Object-oriented databases are able to handle many newer data types, such as images, audio, and video. The land degradation IS consists of appropriately organized database, data retrieval and processing and/or integration system.
