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
Eight thousand years ago, forests covered more than 23 million square miles, or about 40 percent of Earth’s land surface. Today,
Eight thousand years ago, forests covered more than 23 million square miles, or about 40 percent of Earth’s land surface. Today,
admin
2011-01-10
31
问题
Eight thousand years ago, forests covered more than 23 million square miles, or about 40 percent of Earth’s land surface. Today, almost half of those forests have fallen to the ax, the chain saw, the matchstick, or the bulldozer.
A map unveiled in March by the Washington-based World Resources Institute not only shows the locations of former forests, but also assesses the condition of today’s forests worldwide. Institute researchers developed the map with the help of the World Conservation Monitoring Center, the World Wildlife Fund, and 90 forest experts from a variety of universities, government organizations, and environmental groups.
Only one-fifth of the remaining forests are still "frontier forests", defined as a relatively undisturbed natural forests large enough to support all of their native species. Frontier forests offer a number of benefits: They generate and maintain biodiversity, protect watersheds, prevent flooding and soil erosion, and stabilize climate.
Many large areas that have traditionally been classified as forest land don’t qualify as "frontier" because of human influences such as fire suppression and a patchwork of logging. "There’s surprisingly little intact forest left," says research associate Dirk Bryant, the principal author of the report that accompanies the new map.
In the report, Bryant, Daniel Nielsen, and Laura Tangley divide the world into four groups: 76 countries that have lost all of their frontier forest; 11 nations that are "on the edge"; 28 countries with "not much time"; and only eight—including Canada, Russia, and Brazil—that still have a "great opportunity" to keep most of their original forest. The United States is among the nations said to be mining out of time: In the lower 48 states, says Bryant, "only 1 percent of the forest that was once there as frontier forest qualifies today."
Logging poses the biggest single threat to remaining frontier forests. "Our results suggest that 70 percent of frontier forests under threat are threatened by logging," says Bryant. The practice of cutting timber also creates roads that cause erosion and open the forest to hunting, mining, firewood gathering, and land clearing for farms.
What can protect frontier forests? The researchers recommend combining preservation with sustainable land use practices such as tourism and selective timber extraction. It’s possible to restore frontiers," says Bryant, "but the cost and time required to do so would suggest that the smart approach is to husband the remaining frontier forest before it’s gone.
All the following organization are involved in the development of the map except ______.
选项
A、the World Conservation Monitoring Centre
B、the United Nations Development Program
C、the World Wildlife Fund
D、the World Resources Institute
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/6JcO777K
本试题收录于:
NAETI中级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI中级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Forsomepeople,thelightofhumanattentionhasanunbearablebrilliance.Likeivyalongthedimedgeofagarden,theyprefer
Lifeinsurance,beforeavailableonlytoyoung,healthypersons,cannowbeobtainedforquitealargeproportionoftheelderly
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromtheearthinthelastfiftyyears?Shouldwebeconcerned
OfalltheemployedworkersintheUnitedStates,12.5millionarepartofatemporaryworkforce.TheUnitedStatesBureauofLa
Inthepopularmind,theInternetistherealizationoftheglobalvillage,wheretheflowofinformationandideasisunimpeded
Becauseitisnotaseriousproblem,wearenotnecessarytotakestrictmeasuresagainstthestudent.
Oneofthethingswehavetodotopreventapandemicistomakesurepeopleunderstandandknowwhattheycandotominimizeth
Hiscomplaintaboutourmanagementwasnotwithoutreasons.
Sinceshewasten,shehasbeenlargelyenamouredwithpoemsandliterature,whichhascertainlypavedthewayforheraccomplis
A、Hikers,B、Bankers.C、Fishermen.D、Internetserviceproviders.C将选项内容迅速与原文对照。该题中特定信息的找寻非常简单,不用推理判断,只需听者迅速对原文中某些职业名作出反应即可。
随机试题
润滑油着火时宜用高压柱状水扑救,不可用砂土、酸碱、泡沫干粉及1211灭火器扑救。
催化以RNA为模板合成DNA的酶是催化以DNA为模板合成RNA的酶是
甲公司为从事石油化工及投资的大型企业。甲公司下属子公司乙公司于2007年在香港成功发行股票并上市。2010年9月乙公司购入总部位于英国的丙公司4.2%的股份。经过与丙公司的接触,乙公司认为,全面收购丙公司符合其长远发展目标。丙公司在尼日利亚的全资子公司是
儿童和青少年的健康成长离不开德育。()
【2015年辽宁特岗.单选】多元智能理论的提出者是()。
村里有两家因为宅基地问题发生械斗事件,你是村支书,如何处理?
Theriseofmultinationalcorporations(跨国公司),globalmarketing,newcommunicationstechnologies,andshrinkingculturaldifferen
温饱工程
实现程序可将磁盘中的一个文件复制到另一个文件中,两个文件的文件名在可执行命令的命令行中(相当于copy命令),假定文件在当前目录下。请补全程序。#include<stdio.h>voidmain(intargc,char*argv[])
Alllivingcreaturespassoninheritedtraitsfromonegenerationtoother.
最新回复
(
0
)