Indochina

Direct exploitation occurs through general logging (deforestation), selective logging or the use of forest non-timber products (FNTP’s). General logging is the biggest threat to conifer species whereby forest habitats are often replaced by plantations, settlements or agricultural land. Selective logging involves the removal of individual tree species for their valuable timber, for charcoal production or fire wood. This practise is often considered to be a sustainable alternative to clear-cutting however, for every tree removed 30 more will become severely damaged because the practise of selective logging is inherently destructive. Conifers play an important role in the production of non-timber products, one example is the use of the foliage and bark of Taxus species for the production of the anti-cancer drug taxol. Although over-exploitation can lead to local extinction, the sustainable commercial and domestic use have the potential of increased incentives for forest conservation.

Fitzroya cupressoides

Fitzroya cupressoides© M.Gardner, RBGE

Taxa in the category - Indochina:

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Abies delavayi subsp. fansipanensis (Q.P.Xiang) Rushforth

This subspecies, described in 1997, is restricted to a single mountain in Northern Việt Nam. The main threats are its small population size and restricted distribution which make it potentially susceptible to stochastic events.  Read full species entry >

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Amentotaxus argotaenia (Hance) Pilg

A widespread species that only ever occurs in small isolated populations. It is currently assessed as Near Threatened due to range wide deforestation. Read full species entry >

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Amentotaxus hatuyenensis T.H.Nguyên

This species was described in 1996 from the karst limestone areas of Hagiang province in northern Việt Nam. Recent field work and molecular research indicates that this taxon is conspecific with Amentotaxus yunnanensis. Consequently it is due to be removed from the IUCN Redlist. Read full species entry >

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Amentotaxus poilanei (Ferré & Rouane) D.K.Ferguson

Amentotaxus poilanei has only been recorded from a single locality on the Ngoc Linh massif in Kontum province. General deforestation and trans national road building may be threats in the near future. Read full species entry >

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Amentotaxus yunnanensis H.L.Li

Distributed in China, Loa PDR and Việt Nam where it is threatened by general deforestation and selective logging. Read full species entry >

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Calocedrus macrolepis Kurz

A widespread species that has been exploited for timber and resin. Difficulties in estimating the extent of its decline and a lack of information about its staus is some parts of its range have resulted in an assessment of Near Threatened. Read full species entry >

Foliage
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Calocedrus rupestris Aver.,T.H.Nguyên & P.K.Lôc

Calocedrus rupestris was first described in 2008 from Việt Nam: prior to this Calocedrus trees occurring on limestone karst  were wrongly identified as Calocedrus macrolepis.  In 2011 C. rupestris was discovered in Guangxi. Threats include selective logging for timber, deforestation and forest degradation. Read full species entry >

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Cephalotaxus mannii Hook. f.

Although widely distributed in southeastern Asia it is often targeted for its timber. Futher threats include the conversion of its habitat to agriculture land which has resulted in severe forest fragmentation. Read full species entry >

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