首页
登录
职称英语
To best protect threatened plants, inefficient national parks should be sold
To best protect threatened plants, inefficient national parks should be sold
游客
2023-08-27
13
管理
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." [br] According to Richard Fuller, the inefficient national parks are those _____.
选项
A、that cover areas which are too small
B、that cost too much on management
C、whose vegetation is not well maintained
D、whose protected vegetation is not diverse
答案
D
解析
解题关键在于读懂第1段最后一句。Fuller认为,只要更换掉1%的低效国家公园就能够增加受保护植被的种类数量(the number of vegetation types being protected)。由此可推断,那些低效的国家公园里的植被类型并不多。因此,本题应选D。
转载请注明原文地址:https://tihaiku.com/zcyy/2963328.html
相关试题推荐
Theissueofwhetherparentswhosechildrenareobeseshouldbechargedwith
Theissueofwhetherparentswhosechildrenareobeseshouldbechargedwith
Theissueofwhetherparentswhosechildrenareobeseshouldbechargedwith
A、Effectivelegislationsandlawsshouldbeimplemented.B、TheWHOshouldtalkp
Forthispart,youareallowed30minutestowriteashortessayentitledShould
Protectingjust42sitesacrossAsia,rangingfromtemperateforeststotrop
Protectingjust42sitesacrossAsia,rangingfromtemperateforeststotrop
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
Oneofthegreatestconcernsparentshavewhenfacinganinternationalmove
随机试题
Althoughgeneticmutationsinbacteriaandvirusescanleadtoepidemics,so
"Youwouldratherfollowthanlead"means______.[br]Ifoneenjoyslife,onei
九寨沟风景名胜区位于中国西部四川省阿坝藏族羌族自治州(AutonomousPrefecture)九寨沟县南坪镇。全区面积约720平方公里,大部分为森林
交变盐雾试验是一种综合盐雾试验,它主要用于()。A.空腔型的整机产品 B.线
胆囊结石的病因病理不包括()A.肝脏损伤 B.代谢因素 C.胆道异
红利支付导致公司借款需求的原因在于()。A.公司利润收入在红利支付与其他方
(2019年真题)根据《行政强制法》规定,下列有关冻结的说法中,正确的是
C
A. B. C. D.a=0
钢筋原材料进场检验项目中,预应力钢丝的检验项目有()。A.外观检查 B.拉力、
最新回复
(
0
)