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
考研
(46) U.S. farmers are planting more acres of crops using soil building and pollution fighting faming systems than traditional me
(46) U.S. farmers are planting more acres of crops using soil building and pollution fighting faming systems than traditional me
admin
2014-06-13
22
问题
(46)
U.S. farmers are planting more acres of crops using soil building and pollution fighting faming systems than traditional methods that rely on the plow or intensive tillage, according to a report due to be released early next month.
The report, titled "National Crop Residue Management Survey," shows a 6 million acre gain for environmentally friendly farming systems this year.
(47)
It also shows traditional farming methods, which result in greater soil erosion and run off from fields, declined by 4 million acres.
(48)
The survey, conducted on a county-by-county basis by USDA Natural Resources Conservation Service, indicates that farmers in Iowa, Illinois, South Dakota, Kansas, and Indiana contributed the most to the increase in acres grown with environmentally friendly farming systems known as conservation tillage systems.
These states accounted for 5 million of the 6 million acre increase in conservation tillage this year.
All conservation tillage systems, such as no-till, mulch-till, ridge-till, strip-till, and zone-till, rely on less tillage or less soil disturbance to plant and manage crops.
Farmers who use these systems leave plant materials stems, stalks, and leaves—on the surface of fields after harvest.
The plant materials, also called crop residues, serve as a blanket to protect the soil from erosion.
The crop residues slowly decompose to add organic matter to the soil much like mulching or composting add organic matter to a garden.
The survey results for 1997 indicate that conservation tillage systems now account for 109.8 million acres or fully 37 percent of the 294.6 million annually planted cropland acres in the United States.
In the meantime, traditional systems that rely on the plow or intensive tillage fell to 107.6 million acres this year.
The remaining acres are in an intermediate farming system known as reduced till.
(49)
The head of the nonprofit center that compiles and publishes the annual survey is calling on consumers and farmers alike to focus increased attention on conservation tillage systems.
"(50)
Independent research and practical application across the country show that these systems not only replenish and build organic matter in the soil for improved fu ture food productivity but they will also protect water quality and enhance wild life and the environment for future generations,
" says John Hebblethwaite, executive director of the Conservation Technology Information Center. "There is also growing evidence that these systems can even help us combat the potential for global warming," he adds.
Conservation tillage has long been credited for protecting water quality by reducing runoff from farm fields, according to Hebblethwaite.
He notes the latest research also indicates that soil enriched by crop residues offers natural protection for groundwater.
Conservation tillage systems save the farmer money by reducing trips through the field for planting and cultivation.
选项
答案
这份由美国农业部自然资源保护局以县为单位进行的调查报告指出,增加的采用环保型耕作法的土地大部分集中在爱荷华州、伊利诺斯州、南达科他州、堪萨斯州和印第安那州。这种环保型耕作法被称作保留式耕作法。
解析
句子的框架是The survey,…,indicates that farmers…contributed the most to the increase in acres grown with…farming systems known as conservation tillage systems。that引导的宾语从句,作indicates的宾语;过去分词结构conducted by…作定语修饰
转载请注明原文地址:https://kaotiyun.com/show/xgO4777K
0
考研英语一
相关试题推荐
Peopletodayallovertheworldarebeginningtohearandlearnmoreandmoreabouttheproblemofpollution.(46)Pollutionis
ReadthefollowingtextcarefullyandthentranslatetheunderlinedsegmentsintoChinese.ThetakingoftheBastillefortress
ReadthefollowingtextcarefullyandthentranslatetheunderlinedsegmentsintoChinese.ThetakingoftheBastillefortress
Inthefollowingtext,somesentenceshavebeenremoved.ForQuestions(41-45),choosethemostsuitableonefromthelistA-Gt
Inthefollowingarticle,somesentenceshavebeenremoved.ForQuestions41-45,choosethemostsuitableonefromthelistA-G
OnthegroundflooroftheFederalReservebuildinginWashington,DC,thereisanelectronicgamewhichtestsavisitor’sskill
"EqualJusticeUnderLaw",readsthemottoatoptheU.S.SupremeCourtbuilding.Thewordsarelofty,butforthethousandsofp
Inasense,thenewprotectionismisnotprotectionismatall,atleastnotinthetraditionalsenseoftheterm.Theoldprotec
Whatifarchitectscouldbuildlivingsystemsratherthanstaticbuildings—dynamicstructuresthatmodifytheirinternalande
Whatifarchitectscouldbuildlivingsystemsratherthanstaticbuildings—dynamicstructuresthatmodifytheirinternalande
随机试题
Ⅰ导联是正向波,Ⅲ导联是较深的负向波,电轴:()
岩石由于形成条件的不同,分为火成岩、水成岩及变质岩,其中变质岩包括()。
简述我国国际货运代理的业务特点。
关于甲状腺素的说法错误的是
男性,37岁。因流脑入院,住院过程中出现休克,无尿,皮肤黏膜及胃肠道出血,实验室检查:血蛋白80g/L,白细胞计数23.5×109/L,血小板10×109/L,凝血酶原时间延长,纤维蛋白原定量0.5g/L。根据上述结果可疑及下列哪种情况
张丽因与王旭感情不和,长期分居,向法院起诉要求离婚。法院向王旭送达应诉通知书,发现王旭已于张丽起诉前因意外事故死亡。关于本案,法院应作出下列哪一裁判?
下列各项中,会引起事业结余发生增减变动的有()。
《国务院办公厅关于进一步激发文化和旅游消费潜力的意见》指出,要引导演出、文化娱乐、景区景点等场所广泛应用互联网售票、二维码验票。()
唯物主义发展的历史形态有()。
我国《宪法》规定,对于公民的申诉、控告、检举,有关国家机关(),负责处理。任何人不得压制和打击报复。
最新回复
(
0
)