【解决办法】在添加影像的时候设置layersID参数为临时图层ID，参考代码如下:
var layer = viewer.imageryLayers.addImageryProvider(new Cesium.SuperMapImageryProvider({
url : 'http://localhost:8090/iserver/services/map-Population/rest/maps/PopulationDistribution',
layersID:'7ff8783d3d2748fb81ff63dc5f356274_c087c21c52fd43c1ac57434b5a602779' // 临时图层ID
}))
