3. Extracting and Analysis Results of New Increased Construction Land in Experimental Zones
(1)Supervising results of new increased construction land by 20 m scale middle resolution multiple spectral
images
In Yinchuan Plain experimental zone, 107 pattern spots of new increased construction land were extracted
through CBERS and P6 images data. The area in all was about 20607 acres. The spot distribution of new
increased construction land was shown in Fig. 1. In new construction land change spots, the largest pattern
spot was 2107 acres, and the smallest one was 6 acres. From the area distribution of view, areas of these
pattern spots were mainly between 10 acres to 50 acres and 100 acres to 500 acres.