Zhagana in Gansu province possesses the ecological heritage of both karst landforms and ancient glacial landforms, which is extremely rare on the Qinghai-Tibet Plateau. The region’s unique landforms and distinctive natural environment have nurtured abundant and diverse flora and fauna resources. It boasts the highest plant species density among mountainous forest ecosystems at the same latitude globally, and it is one China’s richest regions in terms of diversity of seed plant species in temperate forest vegetation.