摘要
主要运用卫星遥感解译技术对青海湖流域内多年度的植被生态系统、主要水体生态系统、常年积雪以及青海湖东部沙岛的变化进行研究探讨。研究结果表明,青海湖流域内主要水体从1970—2005年总体呈现出缓慢减少的趋势,但从2005年至今总体呈现出一种逐步增多的趋势;青海湖东部沙岛由于青海湖水位的上升导致面积减少,但是实际情况却是沙岛的范围进一步向东扩张。总体来说青海湖流域的总体生态水平在近二十年中保持一个逐渐变好的趋势。
This paper relies on satellite remote sensing interpretation technologies to study the multi-year vegetation ecosystem in Qinghai Lake Basin,main water ecosystem,the changes of perennial snow cover and sand islands in the east of Qinghai Lake.The results show that the main water bodies in Qinghai Lake Basin show a slow decreasing trend from 1970 to 2005.There has been a gradual increase in the number of people from 2005 to the present,s a result of global warming;The area of sand island in the east of Qinghai Lake decreases because of the rise of water level in Qinghai Lake,But the reality is that the sand island is expanding further eastward.In general,the overall ecosystem is gradually improving in recent twenty years.
作者
丁宁
王琳
吴笑天
DING Ning;WANG Lin;WU Xiaotian(Big data Center of Geospatial and Natural Resources in Qinghai Province,Xining 810001,China;Qinghai Provincial Institute of Comprehensive Investigation and Monitoring of Natural Resources,Xining 810001,China)
出处
《测绘与空间地理信息》
2022年第9期126-128,132,共4页
Geomatics & Spatial Information Technology
关键词
生态系统
遥感
青海湖流域
ecosystem
remote sensing
Qinghai Lake Basin
作者简介
丁宁(1983-),女,山东菏泽人,工程师,学士,主要从事自然资源大数据等方面的应用研究工作。
