关键词: Landsat 7 ETM+, Landsat 8 OLI, 中缅油气管道, 土地利用/覆被, 时空变化分析

Abstract:

"China-Myanmar oil and gas pipeline" is the third largest land energy corridor in China.The construction of this project will change the status of land use/cover around the line,and at the same time,it will have an important impact on the natural environment and social and economic development of the region along the line.Selecting the 11 important nodes at home and 4 important nodes in Burma along the China-Burma oil and gas pipeline as the study area,and based on Landsat7 ETM+and Landsat8 OLI image from 2012 to 2015,using the decision tree classification algorithm to extract the land use/cover information of the important node along the in China-Burma oil and gas pipeline from 2012 to 2015 and analyzing the land use/cover change of 15 important nodes along the China-Burma oil and gas pipeline during 2012 and 2015.The results show that:①The land cover change of 15 nodes was about 20% excluding the Mangshi city,Longyang district,Rakhaing State;②The main land cover change is the conversion between vegetation and bare soil,and the other change is the conversion between other land cover to construction;③The China-Burma oil and gas pipeline projects has radiating drive effect on promoting the development of local economy,and changing the economic structure of the local crop,and resulting in a large number of conversion between vegetation and bare soil,and causing the increase of building land demand and the emergence of a large number of other land cover type conversion to buildings.

Key words: Landsat 7 ETM+, Landsat 8 OLI, China-Myanmar oil and gas pipeline, land use/cover, spatiotemporal variations analysis