natural self-purification
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesnoun
natural self-purification capacity of the environment
Technical term in environmental science describing the ability of environmental media (air, soil, water) to reduce pollutant concentrations and restore unpolluted conditions through physical, chemical, and biological processes without human intervention.
Shī湿
dì地
shēng生
tài态
xì系
tǒng统
jù具
yǒu有
hěn很
qiáng强
de的
zì自
jìng净
zuò作
yòng用
。
Wetland ecosystems possess a strong capacity for natural self-purification.
Hé河
liú流
de的
zì自
jìng净
zuò作
yòng用
xū需
yào要
yí一
dìng定
de的
shí时
jiān间
cái才
néng能
wán完
chéng成
。
The self-purification process of a river requires a certain amount of time to complete.
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Wǒ我
men们
yào要
bǎo保
hù护
dà大
zì自
rán然
de的
zì自
jìng净
zuò作
yòng用
，
jiǎn减
shǎo少
wū污
rǎn染
wù物
pái排
fàng放
。
We must protect nature's self-purification capacity while reducing pollutant emissions.
Zhè这
zhǒng种
tǔ土
rǎng壤
de的
zì自
jìng净
zuò作
yòng用
hěn很
ruò弱
，
róng容
yì易
shòu受
dào到
zhòng重
jīn金
shǔ属
wū污
rǎn染
。
This type of soil has very weak self-purification capabilities and is susceptible to heavy metal contamination.