Bananaballoons
2022-04-29T05:48:53+00:00
用Google earth看不同地区树林颜色的时候发现美国东部的很多树林都是棋盘格的纹理,一开始还以为是卫星照片拼接的,但是放大了看能明显的看到树林边界的样子,为什么要这么修呢 为了防火?
[img]https://img.nga.178.com/attachments/mon_202205/01/-7Qjfk-c208ZwT1kShs-13i.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202205/01/-7Qjfk-c8j2ZpT1kShs-13i.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202205/01/-7Qjfk-c208ZwT1kShs-13i.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202205/01/-7Qjfk-c8j2ZpT1kShs-13i.jpg[/img]