The main wealth of the Ussuri Nature Reserve is a fair­ly large array of vir­gin liana conif­er­ous-broad-leaved forests, which are almost nonex­is­tent either in the Russ­ian Far East or in neigh­bor­ing coun­tries.
The reserve is named after Aca­d­e­mi­cian Vladimir Leon­tievich Komarov, the largest Russ­ian botanist and researcher of the flo­ra of East Asia. He was the first to describe this ter­ri­to­ry, vis­it­ing it in 1913.
The reserve was cre­at­ed back in 1932, since then its area has increased sig­nif­i­cant­ly, which now amounts to 40.4 thou­sand hectares.

The relief of the ter­ri­to­ry where the reserve is locat­ed is low-moun­­tain, formed by the south­ern spurs of the Sikhote-Alin (Przhe­val­sky Moun­tains). The aver­age height of the moun­tains is 300–400 meters above sea lev­el, some peaks reach 650–700 meters. The sources of moun­tain rivers in canyon-like nar­row val­leys are unique and beau­ti­ful. Here there are small water­falls and water boil­ers in the rocky ground, filled with clear cold water. The cli­mate in gen­er­al can be described as warm and humid in sum­mer with mod­er­ate­ly harsh win­ters with lit­tle snow. The cold­est month is Jan­u­ary (aver­age tem­per­a­ture ‑17.9ºС), the warmest is August (+19.7ºС). The absolute min­i­mum on the soil is ‑32ºС, max­i­mum +60ºС.

The flo­ra of the reserve is com­posed almost entire­ly of for­est species. These are main­ly cedar-broad-leaved forests. They are dis­tin­guished by high species diver­si­ty and in terms of this indi­ca­tor have no ana­logues either in Rus­sia or with­in the bor­ders of the for­mer USSR. There are often areas of cedar forests where up to 50–60 species of trees, shrubs and vines grow alone. The species rich­ness of the grass cov­er is even greater; it con­tains many rare plants, includ­ing gin­seng. In addi­tion to gin­seng, the Red Book species include hard juniper, moun­tain peony, Chi­nese prin­sepia and oth­er species. The fau­na of the reserve is typ­i­cal of conif­er­ous-decid­u­ous and broad-leaved forests. Wild boar, wapi­ti, musk deer, white-breast­­ed bear, and weasel live here. Com­mon birds include war­blers, blue nightin­gales, nuthatch, and hazel grouse. The largest bee­tle of Russ­ian fau­na — the relict long­horned bee­tle — lives here, large trop­i­cal but­ter­flies — Sat­ur­nia Artemis, Brah­mea Tan­cra, Maak’s tail-bear­er. Inter­est­ing­ly, sev­er­al attempts to “diver­si­fy” the species com­po­si­tion of the fau­na did not bring the expect­ed results. Thus, the release of Bar­guzin sables in the 60s to accel­er­ate the restora­tion of the range was not effec­tive. The intro­duc­tion of sika deer also did not bring results.

In the Ussuri Nature Reserve there is a reha­bil­i­ta­tion cen­ter for rais­ing orphaned bear cubs.