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
2013-08-12
65
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."
What does Richard Fuller regard as the most important factor when a protected site is established?
选项
A、Its economic value.
B、Its historic value.
C、Its bio-diversity value.
D、Its environmental value.
答案
C
解析
题目问,在设立保护区方面,Fuller认为什么才是最重要的因素。从第2段Fuller的话中我们知道,许多保护区的设立并不是以生物多样性的价值(not for their bio-divemity value)为前提,结果是导致自然保护区效率低下。就此推断,Fuller认为bio-diversity value比其他因素更重要,选C。
转载请注明原文地址:https://kaotiyun.com/show/CH97777K
0
大学英语六级
相关试题推荐
A、Becausetheyneedmedicaladvice.B、Becausesomepatientswanttobuytheirpaintings.C、Becausetheyareaskedtogivelectur
A、Chocolateflavored.B、Garlicflavored.C、Mintflavored.D、Fruitflavored.D对话中,男士面对种类众多的冰激凌时,决定尝试一种新的口味;女士则决定还是选择她最喜欢的水果口味。因此水
A、Disorderdecreaseswithtime.B、Orderincreasewithtime.C、Disorderincreaseswithtime.D、Orderdecreasewithtime.C
A、Advertisers.B、Manufacturers.C、Customers.D、Sellers.C男士提出做广告的花销是由厂家来承担的,女士对此又提出了异议。她告诉对方广告费用已被附加到了商品的价格上,因而是消费者在为广告买单,故选C。
A、She’shavingahardtimefollowingtheprofessor’slectures.B、Shedoesn’tlikethewaytheprofessorlectures.C、Sheisnoti
Aproblemmorespecifictoschoolsthemselvesispervasivestudentpassivity—alackofactiveparticipationinlearning.Thispr
Atonetime,scientiststhoughtthespacebetweenEarthandSunwasavacuum.Butwenowknowthatthesunfillsitwithgustso
Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontotheworld
SuggestionsforYourWorkAnnieisalongtimesecretary/receptionistfortwoseniorvicepresidentsatabigcompany.Theyh
Thesmallcompanyis____________(面临着市场份额的激烈竞争).
随机试题
案例十一:表2~10是红日公司2008年7月1日的有关财务信息,假设该公司在7月31日的股价为52元。根据案例十一,回答下列题目:调整前的当前市盈率是( )。
下列关于全国银行间市场债券质押式回购交易的说法,正确的是()。
A、B两村庄分别在一条公路L的两侧,A到L的距离|AC|为1公里,B到L的距离|BD|为2公里,C,D两处相距6公里,欲在公路某处建一个垃圾站,使得A,B两个村庄到此处处理垃圾都比较方便,应建在离C处多少公里?()
基尼是美国加利福尼亚州的一个小女孩。她母亲双目失明,丧失了哺育孩子的基本能力:父亲讨厌她,虐待她。基尼自婴儿期起就几乎没听到过说话,更不用说有人教她说话了。除了哥哥匆匆地、沉默地给她送些食物外,可以说,基尼生活在一间被完全隔离的小房里。她严重营养不良,胳膊
构成生产关系的基础并决定其性质的是()。
某县政府有关部门制定2013年烟草工作考核办法,将全年烟草销售任务分派到各乡镇,下列对这一做法的评价,正确的有()。
用户程序的逻辑地址可以不连续的存储管理方式是()。
情景:小明今天因为感冒没来上课。班里组织星期天去草地公园(theGrassPark)郊游,你做为小明的好朋友到他家通知他,碰巧小明去医院打针了,只有小明的奶奶在家。任务:请你用英语给他写一张50词左右的便条。告诉他:你们班
Imeant(buy)______aneveningpaperformydadbutIdidn’tseeanyonesellingthem.
Springisthemostbeautifulseason.Sweetflowersandgreengrassgreetyoueverywhere.Everythingisfresh.Closingyoureyes,
最新回复
(
0
)