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
59
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
Inthefollowingtext,somesentenceshavebeenremoved.ForQuestions(41-45),choosethemostsuitableonefromthelistA-Gt
ReadthefollowingtextcarefullyandthentranslatetheunderlinedsegmentsintoChinese.ThetakingoftheBastillefortress
ReadthefollowingtextcarefullyandthentranslatetheunderlinedsegmentsintoChinese.ThetakingoftheBastillefortress
ReadthefollowingtextcarefullyandthentranslatetheunderlinedsegmentsintoChinese.ThetakingoftheBastillefortress
Inthefollowingtext,somesentenceshavebeenremoved.ForQuestions(41-45),choosethemostsuitableonefromthelistA-Gt
Inasense,thenewprotectionismisnotprotectionismatall,atleastnotinthetraditionalsenseoftheterm.Theoldprotec
Inasense,thenewprotectionismisnotprotectionismatall,atleastnotinthetraditionalsenseoftheterm.Theoldprotec
Inasense,thenewprotectionismisnotprotectionismatall,atleastnotinthetraditionalsenseoftheterm.Theoldprotec
随机试题
A.斑蝥素B.胆酸C.麝香酮D.水蛭素E.牛磺酸结构类型为甾体的化合物是
什么是耗差分析法?
按照国家公务员申诉制度的规定,可以向有关部门提出申诉的情形是
小儿心率下列哪一项是错误的
当食管静脉曲张破裂出血时,最有效的止血方法是()。
针对不同用途的收益性物业可分为()。
按建设工程生产组织的特点,一个项目有不同参与单位承担不同的任务,而参与单位的()不同,因此就形成了不同类型的项目管理。属于业主方的项目管理的是()。
意识是人脑的机能对客观存在(物质世界)的反映。()
绑架妇女、儿童的,可以构成()。
科学研究不应寻求绝对的普遍真理——2012年英译汉及详解SincethedaysofAristotle,asearchforuniversalprincipleshascharacterizedthescientificen
最新回复
(
0
)