Dynamic change of land destroy and reclamation on ATB Opencast Coal Mine
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摘要: 通過對安太堡煤礦1976-2006年期間共10期遙感數據的處理分析,建立了該煤礦土地利用遙感分類系統;在遙感和GIS平臺支持下,對10期遙感數據進行正射校正;采用人機交互式解譯方式提取了該礦區近30 a的土地利用變化情況,并通過室內航片以及野外實地考察進行了驗證.結果表明:研究區土地利用類型由簡單到復雜,由1976年的4種類型發展到2006年的12種類型;地表遭到強烈破壞,到2006年因采礦破壞的土地達到了2730.7 hm2,大面積復墾工作從1993年開始,到2006年共復墾了687.05 hm2,為破壞面積的25.1%,復墾后部分地段出現退化,且有逐步擴大的趨勢,需要盡快采取補救措施.Abstract: 10 times remote sensed data(MSS/TM/ETM +/CBERS) from 1976 to 2006 in ATB Opencast Coal Mine were collected to set up classifications and identification of landuse based on remote sensing and interactively interpret the satellite images. The result indicates that the landuse type changed from simple to complicate during the 30 years, which is 4 types in 1976 to 12 types in 2006. A lot of land was destroyed and the total area is up to 2 730.7 hm2. Land reclamation began in 1993 and the reclamation area is 687.05 hm2 in 2006. Unfortunately, reclamation land degradation took place in several places because of coal waste rock self-burning, which is spreading. Efficient work has to do to deal with the problem.
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Key words:
- ATB Opencast Coal Mine /
- land destroy /
- land reclamation /
- remote sensing monitoring /
- dynamic change
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