GIS-Assisted Parcellary approach to Land use Mapping for local Government Units in the Philippines
C. Field Work
Before the start of the fieldwork survey, Barangay land Use Survey ( BLUS) training shall be performed to the personnel who will be involved in the activity. The use of maps and other signage will be explained noting the importance of the data to be gathered . it should be stressed that the determination of individual land uses in a particular parcel should be based on Housing and Land Use Regulatory Board (HLURB)'s guidelines in land use mapping. Color-coding must be strictly observed as not to confuse different uses of parcels.
Individual barangay printouts should be distributed to the field surveyors for their reference with the administrative boundaries. This includes the parcels located with in respective barangay with their corresponding lot numbers and owners.
When assistance is necessary, the help of the local barangay officials will be tapped because they are the ones who are more familiar of the area. This hastens and facilitates the mapping activity.
After the fieldwork, all barangay maps used will be turnover to the technical person for integration of the result. The technical person will be guided and informed of the data , which are doubtful and misrepresented in the map .in case where there area conflicting data results , its is normally elevated to the judgment of the land use planner for the decision.
Discussion
Land supply plays the most important resource to be considered in land use planning for the local government units . it determines the horizontal limits of areas for development to accommodate the growing settlements and human activity.
With the use of the parcellary approach to land use mapping , there will be an inventory of the individual parcels as to area and ownership . Zonal classification of individual parcels is possible because all are tagged by their respective cadastral lot numbers . examples of the same area shown in the previous map.
These cadastral maps will be complemented by Real Property Tax maps (RPTM) in t preparation of the base map of the locality . once it is setup, mapping revision is easier and cab be used for other applications such as Real Property Tax computerization & Assessment System (RPRCAS ) and Land Information System (LIS) . summary of land uses with its corresponding actual areas cab be laid in matrix form that can be beneficial to the local executives in decision making process.
Conclusion
The use of GIS as a tool in land use mapping enhances the mapping function of the local government in displaying the wealth of its land resources and the potential to efficiently utilize it for future use. The adoption of this approach further helps the LGU to enhance decision-making capability of the local executives in enforcing laws that would somehow influence the basic services that directly affect the lives of the local population .
Though there is no such thing as perfectly land use map, the accuracy of the data being use matters considerably. The local Zoning Ordinance, which hails form the proposed land use plan , has a direst implication to the lives of the local population . when this is enforced, actual parcels affected are visually seen on the map.
Eventually, the Local Government Units can be able to monitor with ease the developments happening in locality and problems such as unwanted developments can be avoided.
Reference:
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Carmona Comprehensive Development Plan -UP PLANADES, Inc.
- ken Schmidt, " Establishing GIS Functionality in the Operations of Local Government ". Dept. of Land Utilization, Honolulu, Hawaii.
