首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
To best protect threatened plants, inefficient national parks should be sold off and the proceeds used to buy more cost-effectiv
To best protect threatened plants, inefficient national parks should be sold off and the proceeds used to buy more cost-effectiv
admin
2017-06-29
40
问题
To best protect threatened plants, inefficient national parks should be sold off and the proceeds used to buy more cost-effective ones. So says Richard Fuller at the University of Queensland in St. Lucia, Australia, who reckons that replacing 1 per cent of Australia’s protected areas could significantly increase the number of vegetation types being protected.
Worldwide, there are 100,000 regions dedicated to bio-diversity maintenance, covering 12 per cent of countries’ land and territorial waters. "Historically, a lot of these areas were designated because we couldn’t use them for economic or agriculture purposes, not for their bio-diversity value," says Fuller. "Consequently, many species and habitats remain inadequately protected." For example, up to 83 per cent of threatened plants are found outside protected areas.
Fuller says environmentalists who try only to increase the number of protected sites are effectively "adding to an inefficient system". Instead, he says, governments should sell off expensive land of low conservation value and buy new sites instead.
Fuller’s team has developed a mathematical model to test their theory in Australia. The group divided the country’s landmass (国土) into around 65,000 sections before assigning each a "conservation value" based on the rarity of the vegetation type within it: higher values were given to areas where more native vegetation has been lost. They then divided each section’s conservation value by its financial value, enabling them to rank currently protected areas in terms of cost-effectiveness. In the model, the least cost-effective areas were sold off and the funds used to buy more cost-effective sites.
For a vegetation type to be considered as "protected" in the team’s model, 15 per cent of the land area it covered must lie in protected areas. Currently, only 18 out of 60 Australian vegetation types are protected by this measure. Replacing just 1 per cent of the least cost-effective areas boosted the number to 54. "We get an enormous increase in efficiency without spending more money," says Fuller.
"It’s a logical approach with obvious benefits for protected bio-diversity," says Jon Nevill, an environmental consultant in Hampton, Victoria, Australia. "But I have no confidence that governments could effectively manage such a difficult programme." Martin Taylor, a protected areas policy manager at environmental campaign group WWF-Australia, is less complimentary. He says the idea of "trading off protected areas to buy theoretically better ones" is "quite horrifying". Sacrificing a protected area based solely on vegetation types without consideration of native animals or local geography is troublesome, he says. "No area can be written off so lightly as these authors do."
Fuller defends his approach, saying the study is just a demonstration. "If this idea was to be put into practice you would need to consider these other values."
Which of the following protected areas is taken as the most cost-effective by Fuller?
选项
A、An area of low conservation value and low financial value.
B、An area of low conservation value but high financial value.
C、An area of high conservation value and high financial value.
D、An area of high conservation value but low financial value.
答案
D
解析
首先要理解题干中的cost-effective的意思,该词意为“划算的,有成本效益的”。文章第3段第2句提到Fuller建议应把值钱但保护价值低(expensive land of low conservation value)的区域卖掉。由此可推断,与此相反的“效率最高的”保护区应该是便宜但保护价值高的区域。因此,本题应选D。
转载请注明原文地址:https://kaotiyun.com/show/w8U7777K
0
大学英语六级
相关试题推荐
A、Therewillbetwomorepeoplethanexpected.B、Therewillbemuchfoodleftbecauseofacouple’sabsence.C、Thenumberofgue
A、Unlimitedweekdayminutes.B、1,000freeanytimeminutes.C、1,000freeweekdayminutes.D、1,000freeweekendminutes.C对话提到,这个手
A、Hewastoldtoboardthewrongplane.B、Hewasnotallowedtoboardtheplane.C、Hearrivedattheairportonlytofindhisti
A、Tochecktheaccuracyofscales.B、Tocalculatethedensityofothermetals.C、Toobservechangesintheatmosphere.D、Tomeas
ItisnoteasytotalkabouttheroleofthemassmediainthisoverwhelminglysignificantphaseinEuropeanhistory.Historyan
A、Inanoffice.B、Inarestaurant.C、Inadepartmentstore.D、Inafactory.D男士问:“谁将糖果装入盒子里?”,女士话中的“自动计数”,“机器”以及“我马上带你去看”,表明对话发生
A、Gettingrichquickly.B、Distinguishingoneself.C、Respectingindividualrights.D、Doingcredittoone’scommunity.B录音结尾提到,大部分
ImprovingthebalancebetweentheworkingpartofthedayandtherestofitisagoalofagrowingnumberofworkersinrichWe
A、Itislessening.B、Itisgrowing.C、Ithasn’tchanged.D、Itisslowlychanging.B短文开头介绍,在1986年出台了禁止商业捕鲸的政策之后,鲸鱼的死亡数字每年都呈上升趋势,故
汉字蕴含古代中国人的智慧,体现中国悠久的历史。书写汉字有助更好地理解传统文化,因为每一个汉字都有其独特的文化内涵。但近年来,随着电脑和手机的普及,越来越多的人习惯于电子输入。人们普遍认为,很多人手写汉字的能力有了明显的下降。人们已开始意识到用纸和笔来手写文
随机试题
什么是虚拟存储器?它有什么特点和作用?
患者要求引产,以下何种方式最安全引产后,采用何种避孕措施为宜
关于基础体温测定,下列哪项不恰当
不属于体外检测尿液HCG的方法是
行心脏DSA,显示二尖瓣瓣口的最佳投射位置是
《注册土木工程师(岩土)执业及管理工作暂行规定》规定,注册土木工程师(岩土)在执业过程中,应及时、独立地在规定的岩土工程技术文件上签章。以下哪项岩土工程技术文件不包括在内?()
按照《火灾统计管理规定》(公安部、劳动部,1997年)规定,这起事故按严重程度应定为()事故。该商厦存在的火灾隐患是()。
质量控制点的重点控制对象主要包括10个方面的内容,其中不属于特殊地基或特种结构方面内容的是()。
•Readthefollowingletter.•Choosethebestwordtofilleachgap.•Foreachquestion(19-33),markoneletter(A,B,CorD)o
A、Hisbossmightaskhimtostayuplate.B、Thewomanwillrecordtonight’sprogram.C、Hemayhavetopreparefortomorrow’sbus
最新回复
(
0
)