China

The negative impacts of residential and commercial development on conifers is so severe that it has led to conifer species becoming Critically Endangered. Ironically, the very system put in place to protect biodiversty, such as national parks, can have a negative impact on biodiversity. Here the most detrimental impacts can be from the visiting public by bringing an increased risk of fire and the introduction of harmful pests and diseases. As a result of an explosive growth rates in the human population over the last 50 years there has been a steady drift of people from the city centres into urban areas. It is estimated that 60% of the Earth's population will live in urban areas by 2030. Hence these increasing population densities and mounting development pressures are causing large tracks of land in the immediate surroundings of urban areas undergoing a process of what is known as urbanisation. This phenomenon directly alters forest ecosystems by removing or fragmenting forest cover. It indirectly alters forest ecosystems by modifying hydrology, altering nutrient cycling, modifying disturbance regimes, and changing atmospheric conditions. 

<em>Tetraclinis articulata</em>, Malta

Tetraclinis articulata, Malta© M.Gardner, RBGE

Taxa in the category - China:

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Amentotaxus argotaenia var. brevifolia K.M.Lan & F.H.Zhang

This variety has a restricted range in southern China with a small population that is thought to be threatened by deforestation 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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Cathaya argyrophylla Chun & Kuang

Native to China with a small population which is estimated to be no more than 1000 mature individuals. Read full species entry >

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Cephalotaxus fortunei var. alpina H.L.Li

A poorly known variety from the mountains in SW China. Deforestation is likely to have had an impact within its restricted range and therefore it has been assessed as Near Threatened. Read full species entry >

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Cephalotaxus hainanensis H.L.Li

Restricted to the island of Hainan, China where the main threat has been exploitation of the bark and leaves for the valuable medicinal extracts. Habitat conversion and deforestation are now the most current threats Read full species entry >

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Cephalotaxus lanceolata K.M.Feng

Endemic to NW Yunnan in China where forests have been exploited for timber and the habitat is being reduced due to forest clearance for expanding agricultural areas. Read full species entry >

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