TY  - BOOK
AU  - Pascasio, Danilo A. 
TI  - Geospatial analysis of Aurora State College of Technology School Site Civil Reservation using drone-based Remote Sensing (RS) and Geographic Information System (GIS)
PY  - 2020///
CY  - Aurora
PB  - ASCOT
KW  - Geospatial analysis
KW  - Geographic Information System (GIS)
N1  - Master of Science in Environmental Management
N2  - This study was conducted to formulate/develop a geospatial analysis of Aurora State College of Technology (ASCOT) School Site Civil Reservation using drone-based remote sensing and Geographic Information System (GIS). The primary data were gathered using Unmanned Aerial Vehicle (Drone DJI Mavic 2 pro Zoom) with a flight altitude of 400 meters above 40 meters ground level and process using Agisoft Photoscan. From the three flight of drone, a total of 194 images were collected. Orthomosaic images were generated from the images collected using Unmanned Aerial Vehicle. Based on the orthomosaic map, the exact location and the extent of development within the area were found in the accessible areas. Most of the areas consist of light green to green color which stands for forest cover like trees, shrubs, and grasses.
About 23% (44 hectares) with an elevation ranging from 7-64 masl is located at the lower portion of the site. Human activities like buildings and house constructions, cultivation and illegal forestry activities were found in the area. Twelve percent (23 hectares) with an elevation ranging from 230.01-321 masl is located at the top of the mountainous area which is inaccessible and has no human activities.
Study area has 13.7% (32.32 hectares) of the total land area with contour interval of 10-50m and 21% (21.76 hectares) with contour interval of 160-200m showing that the contour lines are farther apart to no contour lines described as gently slope to flat surface.
Twenty-eight percent (55 hectares) of the total land area are with a slope interval of 10.01 – 20 described as gently sloping to undulating, and 10.7% (21 hectares) with a slope interval of 0-10 described as level to gently sloping. These areas are suitable for the development and future infrastructure projects in the area.
Based on the data generated, 12% (23 hectares) of the total land area is a flat surface. These identified flat surface are important in terms of planning and development within the area. The presence of large trees in the slope aspect south facing direction and presence of small trees in the slope aspect north facing direction was observed.
In the 2019 land cover data generated, about 89% (174 hectares) of the total land area is covered by closed forest and broadleaved, while 10% (19 hectares) is covered by other wooded land and shrubs. Only 2% (3 hectares) is covered by other land, cultivated, perennial crop and built-up areas. Most of the area is covered by closed forest and broadleaved which is a good indicator that the area has a rich forest cover.
Land cover/forest cover change of the area shows that 82% (160 hectares) of closed forest and broadleaved in 2003 increased to 91% (178 hectares) of the total land area in 2010, increased again to 94% (184 hectares) in 2015, and in 2019, it decreased to 174 hectares. The decreasing trends of forest cover (closed forest and broadleaved) from 2015 to 2019 is very alarming and if the trend and rate of changes continue in this way it will have negative impact on other land cover categories in the future.
Generally, the land cover change of ASCOT School Site Civil Reservation has a total of 8.75% (14 hectares) forest cover (closed forest and broadleaved) increase with an average of 6.25% (0.875 hectares) per annum from 2003-2019. While the other land, cultivated, perennial crop and built-up and the other wooded land and shrubs declines by 7 hectares with an average of 7.14% (0.5 hectares) per annum from 2003 to 2019. This study shows that land cover/ forest cover change of the study site has increased at low rate due to the increasing population in the nearby community and occurrence of illegal forestry activities
ER  -