三级aa视频在线观看-三级国产-三级国产精品一区二区-三级国产三级在线-三级国产在线

Global EditionASIA 中文雙語Fran?ais
Lifestyle
Home / Lifestyle / News

Yangtze River gets its annual checkup

China Daily | Updated: 2023-05-20 09:40
Share
Share - WeChat
A research boat with monitoring devices. [Photo/Xinhua]

After obtaining the samples, researchers separate aquatic life, such as algae and benthic invertebrates, from water or mud. For 25-year-old Xiong Shaokai, it is a task that needs patience and care.

"Inside a mud sample, there is a microworld and benthic invertebrate communities are an important indicator in water health assessment," Xiong says.

The benthic invertebrate community is sensitive to disturbance and is a valuable indicator of the overall health of estuarine ecosystems.

Stretching more than 6,300 kilometers, the Yangtze is a deeply significant waterway in the history, culture and development of the Chinese nation and the central government has intensified efforts to protect the river environment.

Adopted in late 2020, the Yangtze River Protection Law went into effect in March 2021.

Researchers separate and analyze aquatic life-forms from a river sample. They provide a clear indication of the biological health of the river and its environs. [Photo/Xinhua]

Measures were also rolled out to ramp up the treatment of wastewater in industrial parks along the river, as well as to enhance the management of tailings ponds (mixtures of water, sand, clay and residual bitumen left over from the process of separating oil from sand and clay) in mines and the phosphorus sector. To preserve Yangtze biodiversity, China started a 10-year fishing moratorium along the river, protecting more than 4,300 types of aquatic life.

According to the latest statistics from the Ministry of Ecology and Environment, the water quality of the river's primary course has remained Grade II since 2020.

Under the country's six-tier quality system for surface water, Grade III and above is classified as "fairly good".

|<< Previous 1 2 3 4 5 Next   >>|
Most Popular
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 91麻豆久久久 | 久久99精品久久久久久欧洲站 | 日本特黄特色大片免费视频高清 | 国产最新自拍视频 | 97理论三级九七午夜在线观看 | 亚洲综合丁香 | 热久久影院| 亚洲第一成年免费网站 | 国产成人午夜极速观看 | 超级97碰碰碰碰久久久久最新 | 免费视频日本xvideos | 日本欧美一区二区三区免费不卡 | 国产一区二区三区免费视频 | 人与牲动交xxxxbbbb | 国产情侣自拍在线 | 手机看片日韩欧美 | 欧美成人精品第一区首页 | 在线播放一区二区精品产 | 精品一区二区三区在线视频 | 天堂毛片 | 国产农村精品一级毛片视频 | 91精品国产色综合久久不卡蜜 | 777福利 | 麻豆视频官网 | 成年啪啪网站免费播放看 | 色男人的天堂久久综合 | 91正在播放极品白嫩在线观看 | 国内精品一区二区三区最新 | 永久福利盒子日韩日韩免费看 | 久久99精品久久久久久 | 国产精品亚洲玖玖玖在线靠爱 | 看黄色录像一级片 | 午夜激情福利视频 | 日韩免费观看的一级毛片 | 国产成人精品免费大全 | 国产成人啪午夜精品网站男同 | 亚洲 欧美 自拍 卡通 综合 | 亚洲国产第一区二区香蕉日日 | 一本伊大人香蕉高清在线观看 | 国产精品久久久久久久久免费 | 国产69页 |