Study on monitoring the dynamic spatial-temporal change of bamboo resources in Shunchang based on remote sensing technology

摘要

In this paper, TM remote sensing images of 1988, 1992 and 2007 and ETM + remote sensing images of 2001 were used, together with topographic maps, DEM, land usage map, forest resource distribution map, ground investigation and other materials. A study on the dynamic change characteristics of bamboo resources in Shunchang, Fujian from 1988 to 2007 was developed and GIS extraction, superposition and analysis functions were used to analyze the dynamic spatial-temporal change characteristics of bamboo resources. The result shows that: the quantity of bamboo resources in Shunchang had prominently changed from 1988 to 2007. The area of the bamboo forest increased 16814.8 hm2, which was 1.59 times larger than before. The average annual area growth rate was 3.08%; more than 93% of the bamboo forest was located at an altitude below 800m, and 99.9% of the bamboo forest was located at an altitude below 1200m. The area of the bamboo forest decreases as the altitude increases. The dynamic change of bamboo forest area is subject to the influence of multiple aspects, including natural, social and economic factors. The rapid development of bamboo industry is the direct driving force for the expansion of bamboo resources.