?? ???????????:???? ???????????????
![](http://n.sinaimg.cn/default/1_img/upload/3933d981/700/w900h600/20190204/zb6R-hsmkfyp5530033.jpg)
????:1?????????:???????????
2????????
3??????
4???????
5????????
??????????????????????2?15??????? (???????? ???????????????)2??14?????,???(???)(????“???????????”)??????????????????2???????????????,????,?,?????????????????,??????????????????1.2??
![](http://i2.chinanews.com.cn/simg/ypt/2025/250215/3b93c1ee-a361-42c6-b7c8-ac69915b3e73_zsite.jpg)
2025?2?8??????????,????????2??????,??????????
??,?????????????????,???????????????3.2???????LiDAR??????????????????????,???????????????????????60??????????????????,????5????
?????1148.17?,???????593.72?????,???554.45?,?40????-60???????????????????,?,???283?????????,?42.7??????908??(?????????????????1162?),?296??????,??????????????????2562.8?????,???????18???????????????????283????????????????????,??????????????????????306?,??????417??
![](http://i2.chinanews.com.cn/simg/ypt/2025/250215/c30ea673-a580-49e6-8a08-0b4c521e83f9_zsite.jpg)
?????(???)???????????????2010?(DEM),???????5???????????????????????????????????????DEM?????????,?????????????,???????????DEM??????????0.1??????????????(?????????????????DEM???)?“??,?,????????????DEM?,???????????”?????????,????0.5?????????
???????????????????,?DEM??????DEM????,????????????????,?58.7???????????????,??????????????????????22.4???????????????
![](http://i2.chinanews.com.cn/simg/ypt/2025/250215/92d04853-ab3e-4a93-893d-d1dadf264a09_zsite.jpg)
????????????,???????????35.3?,???????????57.7?????,???????(?????)
??:???????