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研究報告

Chapter 6 ECOLOGICAL FIELD SURVEY RESULTS - MAPPING ACCURACY

6.1 MAPPING ACCURACY
   
 
6.1.17 Grassland
   

Most of the mapped areas surveyed were found to have been mis-identified and should be re-classified under other habitat categories. Some areas were occupied by plantations of stunted growth (probably due to altitude and exposure) and shrubby grassland, which has similar spectral characteristics with grassland. Some of the mapped areas were found to be composed of roads and chunam slopes, and were therefore re-classified as Other (Table 6.1n).

Table 6.1n Mis-identified Survey Sites of Grassland
Site No. Site Name Sub-site
Percentage of Area
Mis-identified (%)
Habitat Types of the
Mis-identified Area
148 Tai Mo Shan a 20 Plantation or Plantation/Mixed Forest
c 40 Mixed Shrubland; Plantation or Plantation/Mixed Forest
d 100 Shrubby Grassland
e 70 Mixed Shrubland
f 90 Plantation or Plantation/Mixed Forest
149 Mount Butler a 100 Mixed Shrubland; Bare Rock or Soil; Other
b 100 Lowland Forest; Mixed Shrubland; Natural Watercourse; Bare Rock or Soil; Other
c 100 Other
d 100 Mixed Shrubland; Natural Watercourse;   Bare Rock or Soil; Modified Watercourse; Other
   
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最近修訂日期: 二零零五年十二月二十二日