A notable land form in the flat areas is "thermokarst", which is a landscape of pothole lakes caused by upheaving domes of underground ice that leave a depression when they thaw in the summer.
There are rocky outcrops in places, although most of the flat lands are built on Quaternary pebbles and smaller sediments.
This ecoregion is an area of inland plains surrounded by low hills and the Greater Khingan mountain range.
The main forest-forming trees are dahurian larch (Larix gmelinii) and white birch (Betula papyrifera.
There are areas of nemoral forest in the flatter lands, featuring linden, maple, elm, and barberry.
[7] The animal life of the reserve includes representatives of four faunal zones: Eastern Siberia, Okhotsk-Kamchatka, Amur, and Daur-Mongolian.
As a result, the Nora protected area includes 43% of all mammal species of the Amur and Primorsky (maritime) regions of the Russian Far East.