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Study of setting up County Forest Resource Management Information system based on Web and GIS
5. System Functions
The system integrates advantages of B/S model & C/S model and can provide service for forestry units & the public, C/S model meets the need of forest units to memory, management, and transfer forest resource information, B/S model provides a new way for the public to attain forest information and participate in forestry decision.
5.1. B/S Functions
(1) Browsing Information
The module is a subsystem of gaining knowledge, including various kinds of theories, such as forestry basic professional knowledge, 3S technology & integrated technology, forestry policies & regulations etc., and it also offers a discussion field, the user can issue one's own opinion to relevant knowledge & theory, and can issue one's own new theory and new view, which make the public care for forestry and participate in forestry management. It provides a new way for the public to obtain forest information, concern about forestry, and participate in forestry decision, which arouses the public to accelerate forestry healthy developing and environment improving.

Fig .3 system function mode
(2) Querying Information
- Querying map and attribute data each other
This system based on MapXtreme of WebGIS software publishs map data to web, users can query map & attribute data each other and make thematic map, which can meet the need of the public to attain forest resource information.
- Querying Information about Ningshan County Forestry Unit’s Resource Information
This modal provides a new way for the public to attain forestry resource data of forest units. Users can customized the expressions by selecting menu to get the data that they need in accurate synthetically query, moreover, the operation is very easy and convenient which is very fitting to the public.
5.2. C/S Functions
(1) Inputting Data
There are two methods to input data, one is transferring into database batch of data, such as the vector of MapInfo, raster and attribute data; the other one is data entry, this method provide tables for forestry investigation in field. When forestry workers is investigating in field, the people who take charge of inputting data input data into data, which provide a more solid foundation for the data processing, statistic and analysis, and computing. Inputting data also provide an interface for transforming the data format in common use.
(2) Checking and Transferring Data
After data have been input into database, the data must be verify by data checking worker whether the data is criterion, stand and truth before reporting the data to forestry bureau, after checking, the data can be reported to forestry bureau, and at the same time the data are published to web, forestry workers and the pubic can attain the data in the query modal of the system. (Fig. 4)
(3) Querying of Map and Attribute
This model realizes integrated managing attribute and map data, attribute can be queried from map easily, and users can customized the expressions of accurate query or synthetically query to get the data that they need, the results of query display in the map.

Fig 4. System data flow based on WebGIS
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