免费精品AB,亚洲日韩性欧美中文字幕,鲁丝无码一区二区三区,精品久久久久久成人AV,看av免费毛片手机播放,精品国际久久久久999波多野,又黄又爽又刺激又色的视频,亚洲无线码一区二区三区在线观看

        Book on NE China wetland plants published

        Source: Xinhua| 2019-10-22 21:57:37|Editor: Li Xia
        Video PlayerClose

        CHANGCHUN, Oct. 22 (Xinhua) -- A book on wetland plants in northeast China has been published.

        The two-volume book, with 1.28 million words and color photos, depicts more than 700 varieties of wetland plants including their names, appearance, distribution areas and economic value.

        It is believed to be the first comprehensive book on wetland plant resources in northeast China, which includes the provinces of Liaoning, Jilin and Heilongjiang.

        Its author Zhou You, a life sciences researcher at Tonghua Normal University in Jilin Province, had traveled more than 200,000 km to visit hundreds of wetlands over the past 30 years, collecting over 5,000 specimens and taking around 200,000 photos of plants.

        "The book provides scientific proof and references for the research of wetland plants in northeast China and even the Northeast Asian region," said Liu Xingtu, an academician with the Chinese Academy of Sciences.

        Wetlands play a crucial role in water purification, flood control, and maintaining bio-diversity. China has more than 600 wetland nature reserves and over 1,000 national wetland parks.

        TOP STORIES
        EDITOR’S CHOICE
        MOST VIEWED
        EXPLORE XINHUANET
        010020070750000000000000011100001384940851