首页
登录
学历类
Forests give us shade,quiet and one of t
Forests give us shade,quiet and one of t
最全题库
2022-08-02
48
问题
Forests give us shade,quiet and one of the larder callenges in the fight against climate change.Even as we humans count on forests to soak up a good share of the carbon dioxide we produce,we are threatening their ability to do so.The climate change we are hastening could one day leave us with forests that emit more carbon than they absorb.Thankfully,there is a way out of this trap-but it involves striking a subtle balance.Helping forests flourish as valuable“carbon sinks”long into the future may require reducing their capacity to absorb carbon now.California is leading the way,as it does on so many climate efforts,in figuring out the details.The state’s proposed Forest Carbon Plan aims to double efforts to thin out young trees and clear brush in parts of the forest.This temporarily lowers carbon-carrying capacity.But the remaining trees draw a greater share of the available moisture,so they grow and thrive,restoring the forest’s capacity to pull carbon from the air.Healthy trees are also better able to fend off insects.The landscape is rendered less easily burnable.Even in the event of a fine,fewer trees are consumed.The need for such planning is increasingly urgent.Already,since 2010,drought and insects have killed over 100 million trees in California,most of them in 2016 alone,and wildfires have burned hundreds of thousands of acres.California plans to treat 35,000 acres of forest a year by 2020,and 60,000 by 2030-financed from the proceeds of the state’s emissions-permit auctions.That’s only a small share of the total acreage that could benefit,about half a million acres in all,so it will be vital to prioritize areas at greatest risk of fire or drought.The strategy also aims to ensure that carbon in woody material removed from the forests is locked away in the form of solid lumber or burned as biofuel in vehicles that would otherwise run on fossil fuels.New research on transportation biofuels is already under way.State governments are well accustomed to managing forests,but traditionally they’ve focused on wildlife,watersheds and opportunities for recreation.Only recently have they come to see the vital part forests will have to play in storing carbon.California’s plan,which is expected to be finalized by the governor next year,should serve as a model.To maintain forests as valuable“carbon sinks,”we may need to_______.《》()A.preserve the diversity of species in themB.accelerate the growth of young treesC.strike a balance among different plantsD.lower their present carbon-absorbing capacity
选项
A.preserve the diversity of species in them
B.accelerate the growth of young trees
C.strike a balance among different plants
D.lower their present carbon-absorbing capacity
答案
D
解析
转载请注明原文地址:https://tihaiku.com/xueli/2700321.html
本试题收录于:
英语二研究生题库研究生入学分类
英语二研究生
研究生入学
相关试题推荐
Forestsgiveusshade,quietandoneoft
Forestsgiveusshade,quietandoneoft
Forestsgiveusshade,quietandoneoft
Forestsgiveusshade,quietandoneoft
Forestsgiveusshade,quietandoneoft
随机试题
WhattypeofWebsiteisbeingadvertised?[br][originaltext]LookingforaWeb
WallStreetStocksaremixedwithbluechipsreboundingfrom(1).Rightnow
Whatdoesthemansayaboutthenewintelligenthouse?[br][originaltext]W:B
在无禁忌的情况下,治疗慢性收缩性心力衰竭的药物包括()。A.洋地黄制剂 B.
采取()方式投资形成的股权或资产,由国家授权经营机构依法行使出资人权利。A:直
患者因急性失血性休克出现急性肾衰竭,下列哪项叙述是正确的A.属于肾前性的肾功能损
长的进化过程中,食物匮乏一直是人类面临的首要威胁。由于食物供应的不确定性和食物不
求助者一般资料:女性,14岁,中学学生。 案例介绍:求助者的父母因为感情不和
2020年3月高先生办理提前退休手续时,距离法定退休年龄还差2年,公司按照
负荷计箅中电焊机的设备功率应为()。A.额定负载持续率下的视在功率;C.负载持
最新回复
(
0
)