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: 国产午夜精品久久久久九九 | 久草中文在线视频 | 国产亚洲自拍一区 | 亚洲欧美日韩中文字幕在线一 | 在线观看不卡一区 | 亚洲精品专区一区二区三区 | 一级做a爱| 日本在线视频播放 | 国产在线不卡视频 | 精品一区二区三区免费爱 | 国产在线观看一区二区三区四区 | 一级毛片 在线播放 | 亚洲一区二区三区免费观看 | 国产一区二区在免费观看 | 亚洲男人的天堂在线 | 亚洲成a人v | 日韩一级视频在线观看播放 | 美女视频网站免费播放视 | 黄色视影 | www.日本在线| 亚洲tv成人天堂在线播放 | 国产一区二区三区亚洲欧美 | 五月天激激婷婷大综合蜜芽 | 欧美精品做人一级爱免费 | 97国产精品视频观看一 | 成人a毛片久久免费播放 | 久久精品国产这里是免费 | 国产精品久久久久久久久免费观看 | 欧美一级毛片欧美大尺度一级毛片 | 国产精品一区二区丝瓜 | 欧美a级毛片免费播敢 | 国产成人精品视频 | 男人的天堂在线观看视频不卡 | 欧美午夜网 | 国产精品麻豆一区二区三区v视界 | 精品国产精品国产 | 精品亚洲成a人在线观看 | 日本一级在线播放线观看免 | 黄色三级三级三级免费看 | 黄色日韩网站 | 亚洲午夜在线播放 |