Abies chensiensis ssp. chensiensis
|Scientific Name:||Abies chensiensis ssp. chensiensis|
|Taxonomic Source(s):||Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Assessor(s):||Farjon, A., Li, J.-y., Li, N., Li, Y., Carter, G., Katsuki, T., Liao, W., Luscombe, D, Qin, H.-n., Rao, L.-b., Rushforth, K., Yang, Y., Yu, S., Xiang, Q. & Zhang, D|
|Reviewer(s):||Thomas, P. & Christian, T.|
This subspecies has an extent of occurrence of more than 20,000 km2, and has a large population and although there are past and ongoing threats, it is listed here as Least Concern.
|Previously published Red List assessments:||
|Range Description:||Endemic to China; this subspecies has a fairly wide distribution being recorded from SE Gansu, Henan (Nexiang), W Hubei, S Shaanxi, and W Sichuan.|
Native:China (Gansu, Henan, Hubei, Shaanxi)
|Continuing decline in area of occupancy (AOO):||Yes|
|Estimated extent of occurrence (EOO) - km2:|
|Lower elevation limit (metres):||2100|
|Upper elevation limit (metres):||3000|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This subspecies is rare and is very scattered. A community inventory conducted for this species produced an estimate of 200,000 trees (Y. Yang pers. comm. 2010), but it is unsure what proportion of these were mature.|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||This variety occurs in high mountain ranges of the SW Plateau of China between 2,100 and 3,000 m asl, on grey-brown mountain podzols, brown earth or lithosols. The climate is cold and moist, with annual precipitation between 1,000 and 2,000 mm. It is a rare species, usually mixed with Picea spp., Abies fargesii var. sutchuenensis, Tsuga chinensis, Larix potaninii at high elevations, and Betula spp. at lower elevations; also as a pure forest in Tsin-ling Shan (Wang 1961).|
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Generation Length (years):||15|
|Use and Trade:||Timber has been used for general construction work.|
|Major Threat(s):||Logging and deforestation have depleted this most common and widespread subspecies. Logging was mostly a threat in the past.|
|Conservation Actions:||The Chinese Government has recently imposed a logging ban on old growth forest in western China. Occurs in protected areas. Need further research on the range and population status of this taxon.|
Farjon, A. 2010. Conifer Database (June 2008) In Species 2000 & ITIS Catalogue of Life: 2010 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., eds). Reading, UK. Available at: http://www.catalogueoflife.org/.
Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.
IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.2). Available at: http://www.iucnredlist.org. (Accessed: 10 November 2011).
Wang, C.W. 1961. The forests of China with a survey of grassland and desert vegetation. Maria Moors Cabot Foundation, Harvard University, Cambridge, MA.
|Citation:||Farjon, A., Li, J.-y., Li, N., Li, Y., Carter, G., Katsuki, T., Liao, W., Luscombe, D, Qin, H.-n., Rao, L.-b., Rushforth, K., Yang, Y., Yu, S., Xiang, Q. & Zhang, D. 2011. Abies chensiensis ssp. chensiensis. The IUCN Red List of Threatened Species 2011: e.T34117A9839215. . Downloaded on 09 October 2015.|
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