How did landscape poetry rise and develop?

The most commendable thing about poetry in the Northern and Southern Dynasties is the rise of landscape poetry. Before that, the description of mountains and rivers in poetry was only a foil, but at this time some poets took mountains and rivers as aesthetic objects and integrated them into their own poetry creation, just like Wen Xin Diao Long? As the Ming poem pointed out: "In the early Song Dynasty, there was a change in the style of writing. Zhuang Lao retired and the mountains and rivers were beautiful. "