[1][2] The region has a Humid continental, cool summer climate (Koppen classification (Dwb)).

This climate is characterized by high variation in temperature, both daily and seasonally; with dry winters and cool summers.

[2] The maritime influence moderates the climate, precipitation is high enough to support rich forests, and the region is a boundary area between mountains, river flat lands, and sea coast.

[5][6] The forests of the region are dominated by Korean pine (Pinus koraiensis), Mongolian oak (Quercus mongolica), Larix gmelinii, Larix sibirica, Larix × czekanowskii, Juniperus communis, Betula dahurica, Betula pendula, Pinus sibirica, Pinus sylvestris, Picea obovata, Abies sibirica, Quercus acutissima, Ginkgo biloba, Prunus serrulata, Prunus padus, Tilia amurensis, Salix babylonica, Acer palmatum, Populus tremula, Ulmus davidiana, Ulmus pumila, Pinus pumila, Haloxylon ammodendron, Elaeagnus angustifolia, Tamarix ramosissima, and Prunus sibirica.

Notable protected areas of the Russian Federation in the ecoregion include: These are all IUCN class Ia "strict ecological reserves" (zapovedniks).