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GIS Applications
 
Geographic Information System for Horticultural Crop Wild Relatives
 
Scenario

Plant Genetic Resources for Food and Agriculture (PGRFA) are the motivations to modify the species of crops and also are the basics of sustainable agricultural development. Crop Wild Relatives (CWR) refer to the original species of cultivation crop or the wild species of the relatives with close genes, which are disease-resistant, insect-resistant, resistance to the environmental stress, and also the sources of important economic traits. CWR also increases the productions and quality and decreases poverty.

However, due to the scientific breeding, agricultural commercialization, global environment change, land abuse, and habitat disappearing, the number of the agricultural plant inheritance sources and the gene divergence are extremely declined so that the world food faces a serious crisis.

Nowadays, horticultural crop wild relatives in Taiwan also face the same crisis. In order to deal with the global crisis, Chiayi Experimental Branch Station, Central Research Institute in Taiwan wanted to apply a WebGIS system to have long-term monitor on the habitats of horticultural crop wild relatives in Taiwan and observe the evolution trend. Therefore, the change of gene database can be the references for the conservation.

 
Goals
The Geographic Information System for Horticultural Crop Wild Relatives

Chiayi Experimental Branch Station, Central Research Institute in Taiwan wanted to integrate the data of distribution of the horticultural crop wild relatives and the characteristics by building a WebGIS system. And the data can be the references for the evolution trend and assist the sustainable use of creature inheritance resources and conservation.

In terms of manipulation, the Internet platform can be used as the one window for front-end query or the back-end management. Therefore, the related staffs are able to browse, query, edit, add, and manage the data through the

Internet to build a mechanism of central management, distributed application, and shared data.
 
Solutions

Geographic Information System for Horticultural Crop Wild Relatives is a query system which includes database management and WebGIS. The system applies the internet map server, SuperWebGIS, to be an internet GIS platform and Microsoft SQL Server 2008 Express to be the database platform. It contains the database of species list and survey data as well as GIS technologies, which provides the related staffs with the integrated data of species’ characteristics and distribution space as references for conservation.

Structure of the Geographic Information System for Horticultural Crop Wild Relatives

Furthermore, through the system the related staffs can use WebGIS to query, display, and modify the species without installing any other internet browser objects. Therefore, the staffs can not only gain the needed data through the system but also update the data to the specified database. Then, the staffs can apply SuperWebGIS to publish the data and share the data.

 
Results

Geographic Information System for Horticultural Crop Wild Relatives mainly provides the data query of horticultural crop wild relatives and system management and also applies SuperWebGIS to build a WebGIS. Through the Internet, the associated staffs can connect to the front end of the system to query species, browse query results, map navigation, etc; also the staffs are allowed to manage and maintain user accounts and database.

The functions of the front end contains 3 parts, Basic Map Manipulation, Species Query, and Query Result Display.

1. Basic Map Manipulation:
  The Geographic Information System for Horticultural Crop Wild Relatives provides several basic map navigation tools which enable users to zoom in/out the map, zoom the map to full extent, pan, and so on.
2. Species Query:
 

The Geographic Information System for Horticultural Crop Wild Relatives provides two ways to query, Compound Condition Query and Map Query. Map query allows users to click a city to look up the data of the species in the city. On the other hand, Compound Condition Query enable users to query species family, key word, city name, altitude, etc to get the best query results.

Clicking a city on the map, users can query the data of the species in the city.

3. Query Result Display:
 

Through the species query functions mentioned above, the system can show the information of the species you query on the platform. In addition, the database of the system records the coordinates of the species distribution, so users can know the distribution of the species via the WebGIS platform.

Users can gain the related data, distribution, pictures of the species via the platform.

The back end includes 3 parts, User Management, Survey Data Management, and Species List Management.

1. User Management:
  The user management of the system contains two functions, Add New Users and User Modification. A new user can be added through the Add New Users only; administrator can set the role of the users when adding a new user. Users with different roles have different rights to use the system. Also, administrators can modify the data and settings of each user account anytime.
2. Survey Data Management:
 

The system collects the survey data from different organizations. So administrators can use the Survey Data Management to add, modify and remove the data. In addition, administrators can view the latest updated survey data or download the updated record from each form via the function of Updated Data Browsing. Therefore, administrators are able to clearly manage the updated situation and accuracy of the data.

3. Species List Management:
 

To improve the extensibility for future data, the system provides the interface for modifying species list. Administrators can add the data of a new species by inputting the related information and description of the new species on the interface. If administrators find the family name or genus name of the species or the information of the species is not correct or need to add the more description of the new species, administrators can modify the data by the interface of modification.

Geographic Information System for Horticultural Crop Wild Relatives provides a platform integrating geographic information system and species information. The efficiency of data providing from the unit is significantly improved, and with the WebGIS techniques, the related staffs can clearly recognize the growth and decline of the gene database and the evolution trend. It would be essential references for the sustainable use of creature gene sources and conservation.

 
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