Forests double Fung Shan, Han Shan, Asan-based, only Han Shan, Katayama two forest area reached 30 million mu, with pine tree species, Populus, Betula, Salix, Sophora dominated.

• 林区以双风山、罕山、牙山为主，仅罕山、方山两个林区面积就达30万亩，树种以松、杨、桦、柳、槐为主。