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橘子色水污染与治理英文论文

作者:高考题库网
来源:https://www.bjmy2z.cn/gaokao
2021-01-20 01:35
tags:

8210-橘子色

2021年1月20日发(作者:黑势力)

















The reasonable solution of water pollution in China



















































Author
:李煜哲





































































































Abstract


This paper make a description and analysis about the present situation of water resources and
pollution in our country, using the method of state governance, and puts forward personal views and
opinions.


Key words
:
Current situation


laws

Introduction
The national polluted water emissions increased by 31.5 billion tons in 1980 to 63.1 billion tons in 2002.
Most urban groundwater polluted
to some extent, and has a tendency to increase year by year
. The use of
the
increasingly
serious
water
pollution
not only
reduces the water functions,
further
aggravated the
contradiction of water
resource
shortage,
but
also
a
serious threat to
urban
residents
drinking water
safety and health. For our life source being polluted, how should we respond?

1.

The water resources and pollution situation in our country
1.1

Water resources situation in our country
From
The first national water resources census bulletin

By the end of 2011,there are 45000
reasons basin area of 50 square kilometers above,
total length of 1.5085 million km. There are 22900
reasons basin area of 100 square kilometers above. There are 2865 natural lakes water is greater
than 1 square kilometers wi
t
h a total area of 7.8 square kilometers. The country has about 98000
reservoirs, with a
total capacity of 98000 cubic meters. The national total of 638900 lakes water inlet,
the earth's surface and underground water source is respectively 1.17 and 1847
.
China's per capita water resources is only 2100 cubic meters, only 28% of the world's per capita.
In the northern region, water resource is very shortage, the Yellow River
, huaihe river
, haihe river
three per capita water resources quantity respectively for the national average of only 30.1%, 21.6%
and 12.9%.
China's per capita fresh water resources is only a quarter of the world's average, ranked 110 in
the world, is one of the poorest countries in the world per capita water resources. Available water
resources per capita is only 900 cubic meters, and unevenly distributed. The end of the 20th century,
the presence of more than 400 ci
t
ies in more than 600 cities has water supply shortage problem, the
serious water shortage
city more than 110,
the national total water shortage of
6 billion cubic meters.
[2]

1.2

Situation of water pollution in China
China's top ten river basin water quality success rate is 2/3, Local wate
r quality is worrying

overall


Through years of efforts, we have improved water quality in China, the top ten overall for watershed
water quality mild pollution, but at local area, the
water quality of local water
environment pollution is
still
serious.
Recently
published
in
domestic
academic
journal

bulletin
according to
an

8210-橘子色


8210-橘子色


8210-橘子色


8210-橘子色


8210-橘子色


8210-橘子色


8210-橘子色


8210-橘子色



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