人民长江
人民長江
인민장강
YANGTZE RIVER
2015年
7期
64-66,91
,共4页
遥感动态监测%生态环境演变%气候变化%柴达木盆地
遙感動態鑑測%生態環境縯變%氣候變化%柴達木盆地
요감동태감측%생태배경연변%기후변화%시체목분지
remote sensing dynamic monitoring%ecology evolution%climate change%Qaidam Basin
柴达木盆地北缘地处我国西北干旱半干旱地区，为研究区内冰川、湖泊对气候变化的响应，利用遥感地物信息提取技术与GIS空间分析技术，提取了近25 a来该地区的卫星遥感影象研究柴达木盆地北缘冰川、湖泊的演变特征。研究结果表明：大柴旦湖面积稳定；小柴旦湖面积动态变化大，在2000年以后面积扩大约60%，而冰雪覆盖面积急剧减少，威胁今后该区域生态环境的安全。
柴達木盆地北緣地處我國西北榦旱半榦旱地區，為研究區內冰川、湖泊對氣候變化的響應，利用遙感地物信息提取技術與GIS空間分析技術，提取瞭近25 a來該地區的衛星遙感影象研究柴達木盆地北緣冰川、湖泊的縯變特徵。研究結果錶明：大柴旦湖麵積穩定；小柴旦湖麵積動態變化大，在2000年以後麵積擴大約60%，而冰雪覆蓋麵積急劇減少，威脅今後該區域生態環境的安全。
시체목분지북연지처아국서북간한반간한지구，위연구구내빙천、호박대기후변화적향응，이용요감지물신식제취기술여GIS공간분석기술，제취료근25 a래해지구적위성요감영상연구시체목분지북연빙천、호박적연변특정。연구결과표명：대시단호면적은정；소시단호면적동태변화대，재2000년이후면적확대약60%，이빙설복개면적급극감소，위협금후해구역생태배경적안전。
The North Qaidam Basin is located in the arid and semi-arid regions in northwest China. In order to study the re-sponse of the glacier and lakes in north Qaidam Basin to the climate change, satellite imagines of the area in recent 25 years are abstracted by using the technologies of remote topographic feature abstract and GIS spatial analysis, and the evolution characteris-tics of the glacier and lakes are analyzed. The analysis results show that the bigger Qaidam lake is stable while the area of smaller Qaidam lake changed a lot, which has enlarged by 60% after 2000; the area of the glacier shrieked rapidly after 2000, which threatened the future ecological safety.
