www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Global EditionASIA 中文雙語(yǔ)Fran?ais
China
Home / China / Innovation

Chinese scientists plant corals undersea

Xinhua | Updated: 2017-10-23 14:07
Share
Share - WeChat

 

Huang Hui observes corals in the laboratory.[Photo/Sina]

HAIKOU - Deep in the silent sea, Huang Hui can hear only bubbles gurgling from her oxygen tank. She can only see a few meters around her, feeling small and alone.

She plants corals, the size of her palm, on the seafloor, hoping they one day become a forest.

If her dream is realized, the forest will have vivid colors, with fish weaving in and out.

A coral biologist with the South China Sea Institute of Oceanology under the Chinese Academy of Sciences, Huang has studied coral for around 20 years. Now she and her team are building a large pilot zone and a demonstration area for coral planting in the South China Sea.

Coral is hailed as rain forest or life engine of the sea. Though it covers less than two thousandths of the seafloor area, it is the habitat of nearly 30 percent of marine species, making coral reefs among the most diverse ecosystems on the planet.

Globally coral provides a living for half a billion people, generating billions of dollars of revenue from tourism and fishing. The South China Sea accounts for 2.57 percent of the resources around the globe, ranking eighth in the world.

Corals require precise living conditions: water can neither be too hot nor too cold, the ideal temperature ranging from 23 to 27 degrees centigrade; hydraulic pressure cannot be too high; salinity must be moderate and stable; and the environment must be clean.

Corals have a symbiotic relationship with zooxanthellae algae, which live in coral and give it nutrition and color. If the environment is unsuitable, the zooxanthellae algae leave, and the coral turns white and dies.

Coral reef degradation tolls the alarm bell of climate change. More than a third of the world's coral reefs are severely degraded. Contributing factors include warmer waters, ocean acidification, seawater pollution, increased UV radiation, destructive fishing and offshore construction. Scientists once predicted corals would be wiped out within 50 years, triggering a breakdown of the entire ocean ecosystem.

Huang still remembers the first time she went underwater. It was in 2002 in the South China Sea, and she saw thickets of corals, dotted with fish, lobsters, holothurians and echinus. "It was stunning and exciting," she recalls.

Her team has investigatedall the coral reefs in China. They have corrected and added to many records. They found China has almost 300 kinds of coral.

1 2 Next   >>|
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: 亚洲精品片 | 亚洲天堂视频在线免费观看 | 亚洲精品中文字幕一区 | 国内自拍偷拍视频 | 日本肥老妇色xxxxx日本老妇 | 欧美激情亚洲色图 | 欧美18毛片免费看 | 日韩欧美中文字幕在线视频 | 一本伊大人香蕉高清在线观看 | 毛片国产 | 欧美一级在线毛片免费观看 | 中文字幕一区二区三区免费视频 | 亚洲精品中文字幕一区 | 成人午夜爽爽爽免费视频 | 国产一级小视频 | 99精品视频在线在线视频观看 | 欧美日韩精品一区二区三区视频 | 免费日韩一级片 | 国产一区精品在线 | 色天使影院 | 欧美在线播放成人a | 手机在线看a | 久久午夜影视 | 欧洲乱码伦视频免费 | 精品免费久久 | 亚洲一区免费视频 | 手机看片成人 | aaaaaa精品视频在线观看 | 成年午夜一级毛片视频 | 精品午夜寂寞黄网站在线 | 可以免费看黄色的网站 | 成年女人黄小视频 | 国产成人精品综合在线 | 亚洲国产精品欧美日韩一区二区 | 日韩久久久精品中文字幕 | 免费看成人毛片 | 国产成人精品日本亚洲网站 | 久久99亚洲精品一区二区 | 不卡一级aaa全黄毛片 | 成人国产三级在线播放 | 欧美日韩一区二区三 |