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13,773,000Yen (FY1998; 4,540,000Yen)
The final goal of this research is to implement a database storing various information about the intake and uptake of the green house effect gasses (GHG). We made a system for the databases of GHG, examined the protocol between the databases and some existing models, and developed real GHG database at Pasir mayang area in Sumatra.
This system analyses remote sensing data to obtain land use change and surrounding environmental conditions at target point, and has a geographical information system in raster and polygon types for a spatial information database. The system also links up a digitizer and a large-scaled scanner to input geographical information, and automatic CD-Rom changer as a data sever. The protocol between these databases and some existing models was examined, and the types of input parameters, which must be prepared, were determined.
Using LANDSAT/TM data, we determined land cover of Pasir mayang area in 1992 and 1995. Logged forest was the most dominant land-cover in the area, followed by rubber and secondary vegetation (rubber jungle), fallow land (bush/shrubs), grassland and bare land (clear cut area). Between 1993 - 1995, logged forest area decreased, while rubber jungle and fallow land increased Due to this, above ground carbon stock of the area decreased 6.3%. Comparison of the total green house gases flux of the two period time studies based on land-cover have showed that there was an increase flux of nitrous oxide and carbon dioxide and absorption reduction of methane.
Environmental Condition of Field Measurements, Remote Sensing, Data Server, Raster Type Data, Vector Type Data,