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

US EUROPE AFRICA ASIA 中文
China / Society

Tall grass to help protect Three Gorges Dam

(chinadaily.com.cn) Updated: 2012-04-24 16:09

Tall grass to help protect Three Gorges Dam

Workers water tall grass planted along the water-fluctuation belt to protect the Three Gorges Dam in Hubei province on April 23, 2012. About 34,000 square meters will be planted with tall grass. [Photo/Xinhua]

Tall grass known as vetiver are being planted to protect the Three Gorges Dam at its water-fluctuation belt in Hubei province, Xinhua.net reported.

Water-fluctuation belt is the land between high and low water levels along the bank of a reservoir. The Three Gorges Dam has a 4-million-square-kilometer water-fluctuation belt, which is, in turn, soaked in water and exposed to sunlight every year, causing severe losses in water and soil. Plants with long roots such as the tall grass can take root more than 5 meters deep in the soil and survive after five months.

The project manager Wang Yunyao said 34,000 square meters of tall grass "will be planted at the dam's water-fluctuation belt. If the experiment goes well, the whole belt hopefully will be planted with tall grass, which will result in a beautiful green belt along the reservoir."

Highlights
Hot Topics
...
主站蜘蛛池模板: 国内自拍小视频 | 国产性做久久久久久 | 免费永久国产在线视频 | 成年视频在线 | 亚洲美女福利视频在线 | 久久综合日韩亚洲精品色 | 久久精品国产一区二区三区日韩 | 黑人一级片| 欧美成人高清手机在线视频 | 特级淫片日本高清视频 | 日韩在线 中文字幕 | 午夜国产高清精品一区免费 | 中国性猛交xxxxx免费看 | 国内精品伊人久久 | 目韩一区二区三区系列片丶 | 岛国在线永久免费视频 | 亚洲国产精品久久精品成人 | 日韩欧美毛片免费看播放 | 精品国产系列 | 久久久久久久99视频 | 亚洲精品国产第一区二区多人 | 在线aaa | 美女黄频网站 | 高清一级毛片免免费看 | 成人网18免费网站 | avtt加勒比手机版天堂网 | 高清国产在线播放成人 | 香蕉久久夜色精品国产 | 一区二区伦理 | 精品久久久久久久久久中文字幕 | 欧美高清性色生活片免费观看 | 国产91精品高清一区二区三区 | 爱综合 | 欧美成人精品福利在线视频 | 在线看片中文字幕 | 日韩一区视频在线 | 欧美视频在线观看免费精品欧美视频 | 亚洲一区免费在线 | 91国内视频在线观看 | 怡红院免费的全部视频 | 2021国产精品自拍 |