首页
登录
职称英语
Impact of Urbanization The effects of urbanization: Example: in the U.S.only【L3
Impact of Urbanization The effects of urbanization: Example: in the U.S.only【L3
游客
2025-02-10
18
管理
问题
Impact of Urbanization The effects of urbanization: Example: in the U.S.
only【L31】________of land built on
loss of 【L32】________far larger
could impact on world【L33】________in future
Research methods:
a weather【L34】________ for clouds was used
land use divided into【L35】________.
data used to calculate the【L36】________of all areas
Results:
urban areas often built on the【L37】________
a second study confirmed that prime land is being converted 【L38】________of vegetation is lost per annum
The future:
countries such as【L39】________need to do investigations
stop investing in infrastructure in areas of fertile land
encourage people to move by giving them【L40】________. [br] 【L39】
Hi, good morning everyone. I’m here today to present my findings on the process of urbanization and its impact on the environment. As you know, urbanization involves the movement of people from the countryside to the cities. As this process continues, the cities of the world continue to grow. I will demonstrate how this growth is eating away at the planet’s most fertile land.
My research has focused on two studies that looked at land use in the United States. These have shown that since its independence,
only three per cent of all land in the United States has been built on.
However, the same studies have also shown that the resulting
loss of productive land is comparatively much, much greater.
This isn’t so much of a problem in America as it has a relatively low ratio of people to land. However, most other countries are not so blessed, the impact of which could have dire consequences for the future. The real danger here is if this pattern were to be repeated by developing countries, it could have a major
effect on the world’s food supplies in the next 50 years.
In order to reach this conclusion, several research methods were adopted. A group of scientists in the United States
used a weather satellite
that normally maps moonly cloud cover at night. However, on nights when there were no clouds, they used the satellite to map the generation of heat from city lights. They then took the data and
divided land use into three categories:
urban, semi-urban and non-urban land use. Next, they calculate how active the vegetation is in each region by using different satellites. When they combined this information with previous statistics and weather conditions, they
came up with a number for total productivity for all areas.
So what did the results of this process of land classification show? Well, firstly, they proved that although only a tiny percentage of the land in the United States is urbanized, and 29% of land is used for agricultural purposes,
the land which has been built on actually has the best soils.
These were independently cooperated by a second team of scientists in San Francisco, whose results show that this process is happening even faster in the southeastern corner of the United States. This means that land is extremely productive from an agriculture point of view, is being taken over by lawns, golf courses and a few scattered trees. As a direct result of urbanization, the researchers in San Francisco calculated that every year
1 million tonnes of plants are ’lost’ in the U.S.
So what does this mean for the future? Well, I have come up with some of my own ideas for practical solutions. Countries should calculate whether urbanization is happening on their fertile lands too especially if they have large populations compared to the amount of land available,
1ike India and China,
for example. If it is, then every effort should be made to stop the process from happening This can be done in many ways. One of them is to stop investing in the infrastructure of those areas If people don’t have the facilities they need, they won’t want to live there. But in my opinion, the main solution here is to
offer people financial incentives
to move away from fertile land to areas that are less valuable in agricultural terms.
I hope you’ve enjoyed my presentation this morning. Thanks for your kind attention. I will now take any questions...
选项
答案
India, China
解析
录音中的calculate whether urbanization…对应题目中的do investigations,一些人口较多而相对可使用土地较小的国家可以对他们在城市化过程中的土地使用情况进行调查统计,尤其是印度和中国。
转载请注明原文地址:https://tihaiku.com/zcyy/3950546.html
相关试题推荐
ImpactofUrbanizationTheeffectsofurbanization:Example:intheU.S.only【L3
ImpactofUrbanizationTheeffectsofurbanization:Example:intheU.S.only【L3
ImpactofUrbanizationTheeffectsofurbanization:Example:intheU.S.only【L3
ImpactofUrbanizationTheeffectsofurbanization:Example:intheU.S.only【L3
ImpactofUrbanizationTheeffectsofurbanization:Example:intheU.S.only【L3
UniversityGeographyFieldTripExampleTime:nextweek(atwo-daytrip)Destina
UniversityGeographyFieldTripExampleTime:nextweek(atwo-daytrip)Destina
UniversityGeographyFieldTripExampleTime:nextweek(atwo-daytrip)Destina
UniversityGeographyFieldTripExampleTime:nextweek(atwo-daytrip)Destina
HealthclubcustomerresearchExampleName:DanielTaylorOccupation:
随机试题
Anupsurgeofnewresearchsuggestsanimalshaveamuchhigherlevelofbrai
Themakingofclassificationsbyliteraryhistorianscanbeasomewhatris
Thattrumpetplayerwascertainlyloud.ButIwasn’tbotheredbyhisloudness__
Thewayinwhichpeopleusesocialspacereflectstheirsocialrelationships
开工预付款应在进度付款证书的累计金额达到签约合同价()之后,开始按工程进度
关于子宫内膜癌手术治疗,下述哪项是正确的A.先行盆腔淋巴结清扫,再切除子宫 B
正常人抗人球蛋白试验呈A.强阳性 B.弱阳性 C.阴性 D.阳性 E.弱
妊娠期小腿下半部出现水肿的孕妇,正确的处理措施是A.严格限制盐的摄入 B.严格
女婴,出生6天,其母换尿片时发现其阴道流出少量血性分泌物而向护士咨询。护士正确的
请画出在本侧工频信号变成高频信号向对侧输送框图。
最新回复
(
0
)