英语翻译IntroductionThe estuaries of south-east England (Suffolk,Essex andnorth Kent) are internationally significant conservationareas,because of their importance for migrating andoverwintering birds.Recent erosion of saltmarsh vegetationhas bee

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英语翻译IntroductionThe estuaries of south-east England (Suffolk,Essex andnorth Kent) are internationally significant conservationareas,because of their importance for migrating andoverwintering birds.Recent erosion of saltmarsh vegetationhas bee

英语翻译IntroductionThe estuaries of south-east England (Suffolk,Essex andnorth Kent) are internationally significant conservationareas,because of their importance for migrating andoverwintering birds.Recent erosion of saltmarsh vegetationhas bee
英语翻译
Introduction
The estuaries of south-east England (Suffolk,Essex and
north Kent) are internationally significant conservation
areas,because of their importance for migrating and
overwintering birds.Recent erosion of saltmarsh vegetation
has been extensive,up to 44% was lost from some
estuaries in the 15 years prior to 1988 (Burd 1992).The
loss of saltmarsh has important consequences for coastal
defence against rising sea level,as vegetation offers
some protection to the sea walls that protect much of the
coast of south-east England.The reasons for the loss of
the vegetation are not known (see Hughes 1999),but
may be exacerbated by the absence,or rarity,of intertidal
Zostera spp.,particularly Z.marina which declined as
a consequence of the wasting disease that began in the
1930s.Little formal research has been conducted in
these estuaries and data concerning the effects of the
wasting disease on these habitats are lacking.In the seagrass
beds that remain (see below) there is overlap in the
vertical distribution of both intertidal Zostera species
and the pioneering saltmarsh plants Salicornia europaea
and Spartina anglica.It has been presumed,without direct
evidence,that the seagrasses may help sediment accretion,
by slowing water movement and binding sediment
with their roots,and promote successional development
of saltmarsh vegetation.Beardall et al.(1988) estimated
that the loss of Z.marina led to a loss of 15 million
m3 of sediment from the River Stour and increased
its tidal volume by 30%.There are informal accounts of
some intertidal mud-flats being covered by eelgrass with
blades in excess of 1 m in length (M.Dixon,personal
communication).These accounts clearly refer to Z.marina,
and not to the much smaller Z.noltii,which is now
the more common species in these estuaries.An unknown
effect of the loss of intertidal Z.marina has been
of the loss of protection it afforded to the saltmarshes,
which are now eroding rapidly.Further,these intertidal
seagrasses were important as a food for brent geese
(Branta bernicla bernicla),a protected species,which
have become an increasing nuisance to some

英语翻译IntroductionThe estuaries of south-east England (Suffolk,Essex andnorth Kent) are internationally significant conservationareas,because of their importance for migrating andoverwintering birds.Recent erosion of saltmarsh vegetationhas bee
导言
河口东南英格兰(萨福克,埃塞克斯和
北肯特)是具有国际意义的保护
地区,因为他们的重要性,迁移和
越冬鸟类.最近的侵蚀盐沼植被
已广泛,达到44 %是失去了一些
河口,在15年前的1988年( burd 1992年) .那个
损失的盐沼,具有重要的后果沿海
抵御海平面上升,植被提供
一些保护向海墙保护大部分的
华南沿岸-东英格兰.原因损失
植被不为人所知(见休斯1999年) ,但
可能会加剧情况下,或稀有,潮间带
zostera最高人民检察院,尤其是Z的游艇,其中下降
一个后果,浪费的疾病,开始在该
20世纪30年代.小正式进行了研究,在
这些河口和数据的影响,该
浪费疾病对这些栖息地缺乏.在海草
病床仍然存在(见下文)有重叠,在
垂直分布双方间zostera物种
和开拓盐沼植物蓬欧洲
和大米草.它已推定,没有直接
证据显示,该海草可能有助于泥沙堆积,
减缓水的运动和有约束力的泥沙
与自己的根,促进演替发展
对盐沼植被.beardall等人.( 1988年)估计
这一损失对Z的玛丽娜,导致损失1500万
立方米泥沙从河stour和增加
其潮气量由30 % .有非正式的帐目
一些间泥单位所涵盖的eelgrass与
叶片在超过1米的长度(米狄克逊,个人
通信) .这些帐目清楚,是指到Z码头,
而不是向小得多Z的noltii ,这是现在
较为常见的物种在这些河口.未知
的影响,损失的潮间带Z的玛丽娜已
的损失,保护它给予该saltmarshes ,
现正迅速侵蚀.此外,这些间
海草被作为一个重要的食物布伦特鹅
( branta bernicla bernicla ) ,受保护的物种,其中
已成为越来越多的滋扰,一些

引言
河口东南英格兰(萨福克,埃塞克斯和
北肯特)是具有国际意义的保护
地区,因为他们的重要性,迁移和
越冬鸟类。最近的侵蚀盐沼植被
已广泛,达到44 %是失去了一些
河口,在15年前的1988年(1992年) 。那个
损失的盐沼,具有重要的后果沿海
抵御海平面上升,植被提供
一些保护向海墙保护大部分的
华南沿岸-东英...

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引言
河口东南英格兰(萨福克,埃塞克斯和
北肯特)是具有国际意义的保护
地区,因为他们的重要性,迁移和
越冬鸟类。最近的侵蚀盐沼植被
已广泛,达到44 %是失去了一些
河口,在15年前的1988年(1992年) 。那个
损失的盐沼,具有重要的后果沿海
抵御海平面上升,植被提供
一些保护向海墙保护大部分的
华南沿岸-东英格兰。原因损失
植被不为人所知(见休斯1999年) ,但
可能会加剧情况下,或稀有,潮间带
最高人民检察院,尤其是Z的游艇,其中下降
一个后果,浪费的疾病,开始在该
20世纪30年代。小正式进行了研究,在
这些河口和数据的影响,该
浪费疾病对这些栖息地缺乏。在海草
病床仍然存在(见下文)有重叠,在
垂直分布双方间物种
和开拓盐沼植物蓬欧洲
和大米草。它已推定,没有直接
证据显示,该海草可能有助于泥沙堆积,
减缓水的运动和有约束力的泥沙
与自己的根,促进演替发展
对盐沼植被。 ( 1988年)估计
这一损失对Z的玛丽娜,导致损失1500万
立方米泥沙从河stour和增加
其潮气量由30 % 。有非正式的帐目
一些间泥单位所涵盖的蔓草与
叶片在超过1米的长度(米狄克逊,个人
通信) 。这些帐目清楚,是指到Z码头,
而不是向小得多Z的 ,这是现在
较为常见的物种在这些河口。未知
的影响,损失的潮间带Z的玛丽娜已
的损失,保护它给予该盐沼,
现正迅速侵蚀。此外,这些间
海草被作为一个重要的食物布伦特鹅
受保护的物种,其中
已成为越来越多的滋扰,

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