- 1、本文档共8页,可阅读全部内容。
- 2、原创力文档(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
群文阅读与练习13
突发性干旱与农业
突发性干旱发展迅速,甚至可以摧毁一个地区的农业。
主题语境:自然环境篇幅:359词建议用时:7分钟
1Flashdroughtsdevelopfast,andwhentheyhitatthewrongtime,theycanruinaregion‘sagriculture.They’realsobecomingincreasinglycommonastheplanetwarms.InastudypublishedinthejournalCommunicationsEarthEnvironment,wefoundthattheriskofflashdroughts,whichcandevelopinthespanofafewweeks,isonpacetoriseineverymajoragriculturalregionaroundtheworldinthecomingdecades.
2InNorthAmericaandEurope,croplandthathada32%annualchanceofaflashdroughtafewyearsagocouldhaveagreaterchanceofaflashdroughtbythefinaldecadesofthiscentury.Thatresultwouldputfoodproduction,energy,andwatersuppliesunderincreasingpressure.Thecostofravagewillalsorise.AflashdroughtintheDakotasandMontanain2017caused$2.6billioninagriculturaldamageinAmericaalone.
3Alldroughtsbeginwhenrainfallstops.What‘sinterestingaboutflashdroughtsishowfasttheyreinforce(加強)themselves,withsomehelpfromthewarmingclimate.Whentheweatherishotanddry,soillosesmoisturerapidly.Dryairextractsmoisturefromtheland,andrisingtemperaturescanincreasethisevaporative(蒸发的)demand.Thelackofrainduringaflashdroughtcanfurthercontributetothefeedbackprocesses.Undertheseconditions,cropsandvegetationbegintodiemuchmorequicklythantheydoduringtypicallongtermdroughts.
4Inourstudy,weusedclimatemodelsanddatafromthepast170yearstoassessthedroughtrisksaheadunderthreeconditionsforhowquicklytheworldtakesactiontoslowthepaceofglobalwarming.Ifgreenhousegasemissionsfromvehicles,powerplants,andotherhumansourcescontinueatahighrate,wefoundthatcroplandinmuchofNorthAmericaandEuropewouldhavea53%annualchanceofflashdroughts,respectively,bythefinaldecadesofthiscentury.Globally,thelargestprojectedincreasesinflashdroug
您可能关注的文档
- 群文阅读与练习15--2025届高三英语上学期一轮专题复习.docx
- 群文阅读与练习14-2025届高三英语上学期一轮专题复习.docx
- -2025届高三英语上学期作文写作专项复习:概要写作.docx
- 时文阅读与练习9-2025届高三英语上学期一轮专题复习.docx
- 中考模拟作文写作:“这一次,我全力以赴”导写及范文赏析.docx
- 中考模拟作文写作:“一步一步往前走”思路导引及范文赏析.docx
- 时文阅读与练习8-2025届高三英语上学期一轮专题复习.docx
- 群文阅读练习与写作6-2025届高三英语上学期作文写作专项复习.docx
- 中考作文写作提升课堂:作文审题技法--审类型+审内容+审题眼+审限制词.docx
- 中考模拟作文写作:话题作文“守常”写作指津及范文赏析.docx
文档评论(0)