亚洲精品1234,久久久久亚洲国产,最新久久免费视频,我要看一级黄,久久久性色精品国产免费观看,中文字幕久久一区二区三区,久草中文网

US EUROPE AFRICA ASIA 中文
China / China

Invasive plant chokes Pearl River

(chinadaily.com.cn) Updated: 2011-07-18 09:59
Invasive plant chokes Pearl River

Large amounts of water hyacinth choke areas of the Pearl River near Guangzhou, Guangdong province, photo taken on July 17, 2011. Without control, water hyacinth can be an invasive plant, which can cover lakes and ponds entirely, impacting on water flow, blocking sunlight from reaching native aquatic plants, and starving the water of oxygen, often killing fish. [Photo/Xinhua]

Previous Page 1 2 3 4 Next Page

Highlights
Hot Topics

...