The shores of many places along China's Yellow Sea are green as algae growth has spread over an area of almost 30,000 square kilometres.
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A view shows an algaecovered public beach in Qingdao, northeast China's Shandong province on July 4, 2013. AFP
China hit by largest-ever algaegrowth
BEIJING: The seas off China have been hit by their largest ever growth of algae ocean officials said, with vastwaves of green growth washing onto the shores of the Yellow Sea.
Pictures showed beachgoers swimming and playing in the green tidein the eastern city of Qingdao, while bulldozers shovelled up tonnes of algaefrom the sand.
A Chinese man lies on the algaecovered public beach in Qingdao. AFP
The State Oceanic Administration said on its website that the algae enteromorpha prolifera, started to appeara week ago and had spreadacross an area of 28,900 square kilometres.
The previous largest growth was in 2008 when it affected around 13,000 square kilometres, it said.
Qingdao officials said they had removed around 7,335 tonnes of algae the official Xinhua news agencyreported.
Chinese beachgoers walk by an algaecovered public beach yesterday in Qingdao. AFP
The algal phenomenon is usually caused by an abundanceof nutrients in the water, especially phosphorus, although the triggers for the enormousblooms which began to appearin the Yellow Sea in 2007 remain uncertain.
The China Daily quoted professor Bao Xianwen, of the Qingdao-based Ocean University of China, as saying: “It must have something to do with the change in the environment but we are not scientifically sure about the reasons.”
The algaeare not toxicnor detrimentalto water quality but lead to extreme imbalances in marineecosystems by consuming large quantities of oxygen and creating hydrogen sulphide. AFP
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abundance: a large quantity that is more than enough - ความอุดมสมบูรณ์, ความมากมาย
algae: very simple plants, such as seaweed, that have no real leaves, stems or roots, and that grow in or near water - สาหร่าย
appear: to be seen - ปรากฏ
bloom: a thin layer that forms on the surface of something -
bulldozer: a powerful vehicle with a broad steel blade in front, used for moving earth or knocking down buildings - รถดันดิน
consume: to eat, drink or use something - บริโภค
detrimental: harmful - ซึ่งก่อให้เกิดอันตรายหรือความเสียหาย
ecosystem: all the plants and animals in a particular area, considered as a system with parts that depend on one another - ระบบที่เกิดจากความสัมพันธ์ระหว่างสิ่งมีชีวิตและสิ่งแวดล้อม
enormous: extremely large - มหาศาล
environment: the place in which people or animals live including all the physical conditions that affect them - สภาพแวดล้อม, สิ่งแวดล้อม
imbalance: a situation in which the balance between two things is not equal or fair - ความไม่สมดุล, การขาดความสมดุล
marine: relating to the sea and creatures that live in it - เกี่ยวกับทะเล
news agency: an organisation that collects news and supplies it to newspapers and television and radio companies - สำนักข่าว, องค์กรรวบรวมข่าวให้สื่อมวลชน
nutrient: a substance that is needed to keep a living thing alive and to help it to grow - ธาตุอาหาร, สารอาหาร
phenomenon (plural phenomena): something that exists and can be seen, felt, tasted, etc., especially something which is unusual or interesting - ปรากฏการณ์
quality: the standard of something when it is compared to other things like it; how good or bad something is - คุณภาพ
quantity: a particular amount of something - ปริมาณ, จำนวน
quote: to repeat the words that someone else has said or written - ยกคำพูดมา
remove: to take something away - เอาออกจาก
shore: the land along the edge of the sea or ocean, a lake or another large area of water - ชายฝั่ง
shovel: to lift and move earth, stones, coal, etc. with a shovel - ขุดด้วยเสียมหรือพลั่ว, ตักด้วยพลั่ว, แซะด้วยพลั่ว
spread: to gradually affect or cover a larger area - แพร่กระจาย
tide: a large amount of something unpleasant that is increasing and is difficult to control - สิ่งที่เกิดขึ้นโดยเฉพาะสิ่งที่ไม่ดี
toxic: poisonous and harmful to people, animals or the environment - เป็นพิษ
trigger: something that is the cause of a particular reaction or development, especially a bad one - ตัวนำ, การชักนำ
vast: extremely large in area, size, amount, etc. - กว้างใหญ่, มหาศาล
wave: a line of something that moves across an area - คลื่น
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