| 词条 | West Siberian broadleaf and mixed forests |
| 释义 |
|name = Ecoregion: West Siberian broadleaf and mixed forests |image = Буготакские сопки. Вид с сопки Лысая, недалеко от поселка Горный.jpg |image_size = 300 |image_alt = |caption = Bugotak Hills Protected Area, Novosibirsk Oblast |map = Ecoregion PA0444.png |map_size = 300 |map_alt = Ecoregion territory (in purple) |map_caption = Ecoregion territory (in purple) |ecozone = Palearctic |biome = Temperate Broadleaf and Mixed Forests |animals = |bird_species = |mammal_species = |border = |borders = |area = 223516 |country = |countries = Russia |state = |region_type = |elevation = |coordinates = |geology = |seas = |rivers = |climate = |soil = |conservation = |global200 = |habitat_loss = |habitat_loss_ref = |protected = |protected_ref = }} The West Siberian broadleaf and mixed forests (also 'Western Siberian Hemiboreal forest') ecoregion (WWF ID:PA0444) is a thin band of mixed forest along the southernmost edge of the taiga (coniferous forests) in Western Siberia, just north of the forest-steppe region and south of the West Siberian taiga. The biodiversity of the zone is the highest in Siberia, due to its transitional position between many different ecoregions. The area acts as a long corridor for migration of animals along the east-west axis. The ecoregion is in the Palearctic ecozone, with a Humid Continental climate. It covers {{convert|223516|km2|sqmi|abbr=on}}.[1] Location and descriptionThe ecoregion is an east-west strip, stretching {{convert|2000|km|mi}} from Chelyabinsk in the west to Krasnoyarsk in the east. The zone is only {{convert|150|km|mi}} from north to south. [2] The Ob River and Irtysh River, and tributaries of those rivers, cross the region from south to north. The southeast of the region breaks up into low mountains. ClimateThe region has a Humid continental climate (cool summer sub-type). The cool summer subtype is characterized by mild summers (no month averaging over 22 C), cold winters and less precipitation than the hot summer sub-type. Mean temperatures range from -24° C (January) to +25° C (August). Average annual precipitation is 390 mm. {{climate chart| Climate at 56.25 N, 76.75 E |-10.4|5.7|.8 |-8.6|9.2|.5 |3.4|22.8|.5 |27.2|43.4|.8 |39.9|62.2|1.2 |51.3|73.5|2 |55.8|76.6|2.7 |51.1|71.4|2.4 |41|60.3|1.4 |28.2|42.8|1.3 |8.8|22.9|1.1 |-5.8|10.2|.9 |float = right |clear = right |units = imperial |source = GlobalSpecies.org[3] }} Flora and faunaThe forests of the region are dominated by Siberian fir (Abies sibirica), Siberian spruce (Picea obovata), Siberian pine (Pinus sibirica), Scots pine (Pinus sylvestris), and small-leafed Linden (Tilia cordata). Recently, grassy areas have been covered by more Silver birch (Betula pendula) and Aspen (Populus tremula). About 20 percent of the region is swamp, most of which are eutropic. The canopy in these areas is White birch (Betula alba).[2] ProtectionsThere are no large federally protected areas in the region, and has been heavily affected by human activities.[2] See also
References1. ^{{cite web|title=West Siberian broadleaf and mixed forests|url=https://www.globalspecies.org/ecoregions/display/PA0444|website=Ecoregions of the World|publisher=GlobalSpecies.org|access-date=June 25, 2018}} 2. ^1 2 {{cite web|title=Western Siberian hemiboreal forests|url=https://www.worldwildlife.org/ecoregions/pa0444|publisher=World Wildlife Federation|access-date=June 26, 2018}} 3. ^{{cite web|title=Climate, 56.25/76.75|url=https://www.globalspecies.org/weather_stations/climate/514/293|publisher=GlobalSpecies.org|access-date=June 26, 2018}} External links 3 : Ecoregions of Russia|Palearctic ecoregions|Ecoregions of Asia |
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