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
2023-08-28
23
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-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://tihaiku.com/zcyy/2964846.html
相关试题推荐
Actingissuchanover-crowdedprofessionthattheonlyadvicethatshouldb
Actingissuchanover-crowdedprofessionthattheonlyadvicethatshouldb
Actingissuchanover-crowdedprofessionthattheonlyadvicethatshouldb
TheNationalAssociationofSecuritiesDealersisinvestigatingwhethersom
TheNationalAssociationofSecuritiesDealersisinvestigatingwhethersom
[audioFiles]audio_eusm_j02_001(20082)[/audioFiles]A、Sam’skneeshouldbebetter
Wethinkitimportantthat_______(医院将被感染的病人与其他居民隔离开来).thehospital(should)isol
Itisonlyrightthatthestarsshouldbepaidinthisway.Don’tthetopme
Itisonlyrightthatthestarsshouldbepaidinthisway.Don’tthetopme
Itisonlyrightthatthestarsshouldbepaidinthisway.Don’tthetopme
随机试题
WhatdomanySerbianimmigrantsworryabout?[br][originaltext]SomeSerbi
Ihiredacarpentertohelpme______anoldfarmhouse.A、recoverB、restoreC、regai
以下属于侵犯秘密行为的救济方式的有()A.民事救济途径 B.行政法上的救
以下估值方法中,估值结果与未来价值通常无必然联系的是()A.股权自由现金流
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
幼儿时期占优势的记忆类型是()。A.意义记忆 B.形象记忆 C.词语逻辑记
客户在办理一般产品业务时,如需要银行提供个人理财顾问服务,一般产品销售和服务人员
(2018年真题)中国古代收方最多,为研究复方用药提供珍贵资料的方书典籍是(
铺底流动资金一般按流动资金的()计算。A.30% B.20% C.35%
COPD患者呼吸道感染时,最常致病的革兰阴性杆菌为A.肺炎克雷白杆菌 B.流感
最新回复
(
0
)