青岛市生态环境变化遥感监测与分析

城市化进程不断加快带来一系列生态环境问题，本文利用植被指数、湿度指数、地表温度、建筑物—裸土指数定量表征绿度、湿度、热度、干度4个生态要素指标，通过主成分分析法，建立遥感生态指数模型，并从时间和空间两个维度对比分析2013、2019年两个时期遥感生态指数。结果表明，青岛市生态环境呈局部优化改进、整体下降趋势；同时，将青岛市遥感生态指数与人类活动相关的地表覆盖变化数据、路网交通数据、夜光数据进行耦合性分析，进一步分析探寻生态环境变化的影响因子。

Monitoring and analysis of the change of ecological environment in Qingdao based on remote sensing technologies

A series of ecological environment problems were brought with the accelerating process of urbanization. In this paper, the normalized differential vegetation index, wet, land surface temperature, normalized difference built-up and soil index are used to quantitatively represent the ecological factors of the greenness, the humidity, the heat, and the dryness. The four indicators are synthesized by the principal component analysis (PCA) method to establish a remote sensing ecological index model (RSEI). The RSEI in 2013 and 2019 are compared to evaluate the change of ecological status in Qingdao with the perspective of spatial and temporal different. The results show that the ecological environment of Qingdao is optimized and improved in some partial areas but it is decreased and deteriorated as a whole. At the same time, the RSEI of Qingdao is coupled analysis with the data of landcover changes, road networks and night lights which are related to human activities to further analyze and explore the influence factors of the ecological status change.