Among them, the Luan River watershed area is 353.4 square kilometers, the Yinma River watershed area is 372.4 square kilometers, and the Qili Sea watershed area is 486.6 square kilometers.
Among them, the area of the river basin is 353.4 square kilometers, the basin area of the drinking horse river system is 372.4 square kilometers, and the seven-mile sea water basin area is 486.6 square kilometers.
Among them, Luanhe River drainage area is 353.4 square kilometers, Yinma River drainage area is 372.4 square kilometers, Qili sea water drainage area is 486.6 square kilometers.<br>