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
2023-08-25
56
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] 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-diversity value)为前提,结果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:http://tihaiku.com/zcyy/2955577.html
相关试题推荐
ShouldCollegeEnrollUnqualifiedTalents?1.大学破格录取人才的现象越来越普遍2.人们对其意见不一3.我认为……
ShouldPeoplePlayGamesWhileonDuty?有些人上班时玩游戏1.有人认为这很正常2.也有人反对这种做法3.我的看法
ShouldGraduateSpendMuchonJobHunting?1.目前大学生在求职上花的钱越来越多2.人们对此看法不一3.我的看法
WeShouldBalanceOurLove1.现在有很多人关心下一代超过关心上一代2.这一现象带来什么问题3.你认为应该怎么做?
WeShouldn’tTotallyTurntotheInternet1.现在不少人一遇到问题就上网搜答案2.这种现象可能产生的影响3.你认为
Usingacomputermayprotectagainstmemorylosslateinlife,aslongasyo
Usingacomputermayprotectagainstmemorylosslateinlife,aslongasyo
Usingacomputermayprotectagainstmemorylosslateinlife,aslongasyo
Usingacomputermayprotectagainstmemorylosslateinlife,aslongasyo
Usingacomputermayprotectagainstmemorylosslateinlife,aslongasyo
随机试题
[originaltext]M:IamreallygettingworriedaboutMargaret.She’llsitinfor
元广建设集团是一大型建筑公司,根据《中华人民共和国安全生产法》和《中华人民共和国
疫苗的分类方法中属于按性质划分的是A.液体疫苗 B.提纯疫苗 C.减毒活疫苗
具有弹性和可逆性的印模材料是A.藻酸盐类 B.琼脂 C.聚醚橡胶 D.印模
计划生育技术服务专家委员会由哪些专家组成()。A.从事计划生育技术服务专家
房屋区分所有权是指在整体的房屋建筑中有不同的所有者,该房屋建筑可由所有权人()
放置宫内节育器术中及术后的处理错误的是()。A.术中随时观察受术者的情况 B.
1,4,8,13,16,20,( )。A.20 B.25 C.27 D.
男,28岁,水肿伴腰酸5年,血压160/100mmHg,尿蛋白(+++),血浆白
10个月的婴儿。虚胖,毛发稀疏发黄,面色及口腔黏膜苍白,表情淡漠,运动发育落后。
最新回复
(
0
)