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
2016-08-29
72
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/KlG7777K
0
大学英语六级
相关试题推荐
Mostpeopledon’twakeupinthemorning,combtheirhair,andwalkoutthefrontdoorandontotheworldstage.ButBritain’sP
A、Allwhalingisbad.B、Commercialwhalingisimmoral.C、Whalingshouldbelimitedonlyforfood.D、TheIWCshouldbereplaced.
A、Englanddidn’thaveprivateuniversitiesasAmericadid.B、Americanhighereducationwasbetterinquality.C、Englandhadmore
A、TheUniversityfaculty.B、TheStudentAssociation.C、TheAlumniAssociation.D、ThePresidentoffice.C女士说组织该活动的是校友联合会,故选C。听到什么
A、Itcombinesdifferentfeelingstogether.B、Itcanexpresssomeveryconfusingfeelings.C、Itexaggeratessomespecialfeelings
Newtechnologylinkstheworldasneverbefore.Ourplanethas【B1】______.It’snowa"globalvillage"wherecountriesareonlysec
Cosmeticorplasticsurgeryoftenevokesimagesoffamouspersonalitieswantingtoaltertheirappearancesthrough【B1】______surg
ItiscommonlybelievedintheUnitedStatesthatschooliswherepeoplegotogetaneducation.Nevertheless,ithasbeensaidthatto
CertainphrasesonecommonlyhearsamongAmericanscapturetheirdevotiontoindividualism."Doyouownthing?""Ididitmyway
Overacenturyafteritended,theCivilWarremainsthefundamental【B1】_____inAmericanhistory.Itproducedalossoflife【B2】
随机试题
强化传热速率的途径有哪些?
以下关于DVH图的描述,不正确的是
《执业医师法》规定未经批准擅自开办医疗机构的应承担法律责任,下列法律责任中在该法没有规定的是
“属心而络于胞中”的经脉是
孙某因招摇撞骗罪被判处有期徒刑缓刑。根据《刑事诉讼法》的规定,对孙某缓刑应如何执行?()
工程监理人员发现工程设计不符合建筑工程质量标准或者合同约定的质量要求的,应当要求设计单位改正。()
性质介于砂土和黏性土之间的土是()。
锯子:木头()
4
Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReadingPassage1below.William
最新回复
(
0
)