| 词条 | Chukchi Peninsula tundra |
| 释义 |
|name = Ecoregion: Chukchi Peninsula tundra |image = Красота - panoramio.jpg |image_size = 300 |image_alt = |caption = Town of Pevek, on Chaunskaya Bay |map = Ecoregion PA1104.png |map_size = 300 |map_alt = Ecoregion territory (in purple) |map_caption = Ecoregion territory (in purple) |ecozone = Palearctic |biome = Tundra |animals = |bird_species = |mammal_species = |border = |borders = |area = 298367 |country = |countries = Russia |state = |region_type = |elevation = |coordinates = {{coords|67.75|170.25|display=it}} |geology = |seas = |rivers = |climate = |soil = |conservation = |global200 = |habitat_loss = |habitat_loss_ref = |protected = |protected_ref = }} The Chukchi Peninsula tundra ecoregion (WWF ID:PA1104) is an ecoregion that covers the northern coast of Russia along the East Siberian Sea, a marginal sea of the Arctic Ocean. The climate is somewhat milder than would be expected for its latitude, but the moderating effects of the East Siberian Sea and Bering Sea permits summer daytime temperatures above {{convert|50|F|C}}. Many colonies of migrating birds visit the area. The ecoregion is in the Palearctic ecozone, and Tundra biome. It has an area of {{convert|298367|km2|mi2}}.[1] [2]Location and descriptionThe ecoregion stretches 700 km from the mouth of the Lena River in the northwest to the eastern tip of the Chukchi Peninsula in the east. The terrain is mostly treeless Arctic plains on alluvial deposits and widespread groundwater saturation. There are some small mountains reaching up to 1,000 meters. ClimateThe region has a Tundra (Koppen classification ET). This climate is characterized by long, cold winters and very short summers with at least one month averaging over {{convert|0|C|F}} so that snow or ice might melt, but no month averages over {{convert|10|C|F}}. Mean precipitation in Pevek, on the north coast, averages 184 mm/year, with mean temperatures of {{convert|-26.9|C|F}} in January, and {{convert|8.7|C|F}} in July. Flora and faunaThe ecoregion lies north of the treeline, with only scattered communities of brush among the widespread tundra floral cover. Over 400 species of lichen and moss have been recorded.[3] ProtectionsBeringia National Park is a significant nationally protected area in this ecoregion. See also
References1. ^{{cite web|title=Chukchi Peninsula tundra|url=https://www.globalspecies.org/ecoregions/display/PA1104|publisher=GlobalSpecies.org|language=en|access-date=November 20, 2018}} 2. ^{{cite web|title=Chukchi Peninsula tundra|url=https://www.worldwildlife.org/ecoregions/pa1104|publisher=World Wildlife Federation|language=en|access-date=November 20, 2018}} 3. ^{{cite web|title=Chukotka's Natural heritage at a Glance (PDF) |url=http://d2ouvy59p0dg6k.cloudfront.net/downloads/chukotka_brochure.pdf| publisher=World Wildlife Federation (WWF) |language=en|access-date=December 13, 2018}} 2 : Palearctic ecoregions|Ecoregions of Russia |
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