Assessment Of Land Use Cover Change Detection Using Supervised Maximum Likelihood Decision Rule And Its Post-Classification Technique In Puer-Simao Counties, China

From the Post classification technique, the forest or shrub land decreased marginally to about 66% and 53% in 2002 and 2005 respectively of the total area, while the built up land increased and occupied 20 and 41 % respectively. The agricultural land slightly increased in 1999-2002. The areas covered with forest or shrub land and unused land were receding at an average rate of 06 and 05% per annum respectively, while the built up, water and agricultural land cover types were expanding at rates of 11, 08 and 05% per annum respectively over the years period. Furthermore, the from- to change matrix showed that the most significant changes in the area were in the period 1999-2005, from Forest or shrub land into built-up land (20012 ha), from Forest or shrub land into Unused land (18032ha). In the period from 1999 to 2002 the most important changes were from vegetation into built-up (17223 ha) and from Forest or shrub land into unused land (15600 ha). In the period from 2002 to 2005 the most noticeable change was from Forest or shrub land into built-up (9800 ha). (Diallo Y, Xu Y, Bah AA, Bokhari AA, Hu G, Wen X. Assessment Of Land Use Cover Change Detection Using Supervised Maximum Likelihood Decision Rule And Its Post-Classification Technique In Puer-Simao