Hunt hopes to find ancient trees 英国开展古树调查
文章来源:未知 文章作者:meng 发布时间:2009-07-22 05:48 字体: [ ]  进入论坛

One of the UK's biggest landowners is embarking1 on a comprehensive survey to identify previously2 unrecorded ancient trees on its properties.


The UK has a high proportion of important ancient trees, like Newton
The UK has a high proportion of important ancient trees, like Newton's apple tree

The National Trust hopes to find 40,000 of them during the three-year project.

Ancients trees provide unique habitats that support a wide range of rare species, which will be at risk if the trees are allowed to die, say experts.

The data will be fed into a national record, managed by the Woodland Trust, which is available online.

"Ancient trees can be thought of as the cathedrals(大教堂) of the natural world," said Ray Hawes, the National Trust's head of forestry3.

"This new survey will provide us with the opportunity to understand more about these special trees in our care and map their exact location."

Volunteers will be used to survey the Trust's 25,000 hectares(公顷) of woodlands, 200,000 hectares of woodland, and 135 parks.

Famous finds

A number of famous trees will be listed in the findings, including the apple tree that was said to have inspired Isaac Newton to develop the "notion(观念,想法) of gravitation" in 1655, and a yew4(紫杉,水松) tree that featured in one of William Wordsworth's poems.

Apart from the stars of the aboricultural collection, the Trust's newly appointed ancient tree adviser5 Brian Muelaner said that it was an area that had been overlooked.

"Lots of individuals, particularly property staff, will know where their biggest trees are, and which ones are considered to be locally important," he told BBC News.

"But there has never been a co-ordinated assessment6 of all of them within the National Trust."

The UK has one of the highest proportion of ancient trees in Europe, and Mr Muelaner said that it was vital to effectively manage the unique habitats provided by the multi-centurions.

"These trees are remnants(剩余) of our primeval(原始的,远古的) forests," he explained.

"They are a direct link back to that time, so the biodiversity(生物品种) that is associated with those cannot be found anywhere else.

"If they are lost, then the dependent ecology(生态学) - lichen7(地衣,青苔), fungi8(菌类,蘑菇), deadwood invertebrates9(无脊椎动物) - will suffer."

It can take about 250 years for a tree to become a suitable host for some lichens10.

Farming fears

Once an ancient specimen11 has been identified, a management plan will be put in place to ensure it lives for as long as possible.

Mr Muelaner said the main threat facing these trees was often from farming.

"Too often, arable12(可耕的,适合种植的) fields are ploughed right up to the base of the trunk," he observed.

"Ploughing greatly damages the roots, while fertilisers will damage the mycorrhizal fungi(菌根真菌), which are essential for a tree's uptake(摄取,领会) of nutrients13 and water.

"Even pesticides14 and the use of pharmaceuticals15 in cattle can have an impact".

As well as protecting ancient specimens16, the Trust will also look at ways to ensure the dependent ecology is not lost.

"We need to get succession planting going very quickly if none is underway," Mr Muelaner stated.

"It takes hundreds of years to get the trees in the right conditions to support the rare and endangered species."


1 embarking 7f8892f8b0a1076133045fdfbf3b8512     
乘船( embark的现在分词 ); 装载; 从事
  • He's embarking on a new career as a writer. 他即将开始新的职业生涯——当一名作家。
  • The campaign on which were embarking was backed up by such intricate and detailed maintenance arrangemets. 我们实施的战争,须要如此复杂及详细的维护准备。
2 previously bkzzzC     
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
3 forestry 8iBxk     
  • At present, the Chinese forestry is being at a significant transforming period. 当前, 我国的林业正处于一个重大的转折时期。
  • Anhua is one of the key forestry counties in Hunan province. 安化县是湖南省重点林区县之一。
4 yew yew     
  • The leaves of yew trees are poisonous to cattle.紫杉树叶会令牛中毒。
  • All parts of the yew tree are poisonous,including the berries.紫杉的各个部分都有毒,包括浆果。
5 adviser HznziU     
  • They employed me as an adviser.他们聘请我当顾问。
  • Our department has engaged a foreign teacher as phonetic adviser.我们系已经聘请了一位外籍老师作为语音顾问。
6 assessment vO7yu     
  • This is a very perceptive assessment of the situation.这是一个对该情况的极富洞察力的评价。
  • What is your assessment of the situation?你对时局的看法如何?
7 lichen C94zV     
n.地衣, 青苔
  • The stone stairway was covered with lichen.那石级长满了地衣。
  • There is carpet-like lichen all over the moist corner of the wall.潮湿的墙角上布满了地毯般的绿色苔藓。
8 fungi 6hRx6     
  • Students practice to apply the study of genetics to multicellular plants and fungi.学生们练习把基因学应用到多细胞植物和真菌中。
  • The lawn was covered with fungi.草地上到处都是蘑菇。
9 invertebrates 7e45dc289993d00de9b9f14a70e51319     
n.无脊椎动物( invertebrate的名词复数 )
  • Insects and worms are all invertebrates. 昆虫和蠕虫都是无脊椎动物。 来自辞典例句
  • In the earthworm and many other invertebrates, these excretory structures are called nephridia. 在蚯蚓和许多其它无脊椎动物中,这些排泄结构称为肾管。 来自辞典例句
10 lichens 8ba13422ddec8ecf73fb1d0cb20f495f     
n.地衣( lichen的名词复数 )
  • The only plants to be found in Antarctica are algae, mosses, and lichens. 在南极洲所发现的植物只有藻类、苔藓和地衣。 来自辞典例句
  • Litmus: Mixture of coloured organic compounds obtained from several species of lichens. 石蕊:从几种地衣类植物中获取的带色有机化合物的混合物。 来自互联网
11 specimen Xvtwm     
  • You'll need tweezers to hold up the specimen.你要用镊子来夹这标本。
  • This specimen is richly variegated in colour.这件标本上有很多颜色。
12 arable vNuyi     
  • The terrain changed quickly from arable land to desert.那个地带很快就从耕地变成了沙漠。
  • Do you know how much arable land has been desolated?你知道什么每年有多少土地荒漠化吗?
13 nutrients 6a1e1ed248a3ac49744c39cc962fb607     
n.(食品或化学品)营养物,营养品( nutrient的名词复数 )
  • a lack of essential nutrients 基本营养的缺乏
  • Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》
14 pesticides abb0488ed6905584ea91347395a890e8     
n.杀虫剂( pesticide的名词复数 );除害药物
  • vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
  • There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》
15 pharmaceuticals be065c8a4af3a2d925d11969faac34cf     
n.医药品;药物( pharmaceutical的名词复数 )
  • the development of new pharmaceuticals 新药的开发
  • The companies are pouring trillions of yen into biotechnology research,especially for pharmaceuticals and new seeds. 这些公司将大量资金投入生物工艺学研究,尤其是药品和新种子方面。 来自《简明英汉词典》
16 specimens 91fc365099a256001af897127174fcce     
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人
  • Astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • The traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》
TAG标签: survey ancient tess