แม่น้ำ Minjiang ในจีน ถูกผักตบชวาคุกคามอย่างรุนแรง

แม่น้ำ Minjiang ในจีน ถูกผักตบชวาคุกคามอย่างรุนแรง
ปลาในแม่น้ำเริ่มตายเพราะขาดอ๊อกซิเจนหายใจ

A ship clears water hyacinth near the Shuikou hydropower station on the Minjiang River in East China's Fujian province, August 2, 2011. [Photo/Xinhua]

A ship clears water hyacinth near the Shuikou hydropower station on the Minjiang River in East China's Fujian province, August 2, 2011. [Photo/Xinhua]

An excavator clears water hyacinth on the dike of the Shuikou hydropower station on the Minjiang River in East China's Fujian province, August 2, 2011. [Photo/Xinhua]

A man deals with water hyacinth collected from the water near the Shuikou hydropower station on the Minjiang River in East China's Fujian province, August 2, 2011. [Photo/Xinhua]

A fish farmer shows fish choked to death by water hyacinth at his fish farming area on the Minjiang River in East China's Fujian province, July 13, 2011. [Photo/Xinhua]

Water hyacinth blankets the upper reach of the Shuikou hydropower station on the Minjiang River in East China's Fujian province, August 2, 2011. The invasive plant, which can double its area in 10 to 15 days, is also floating on about 10 km of the lower reach of the power station, affecting transportation and depriving fish of oxygen. [Photo/Xinhua]

A fish farming area is threatened by the fast growing water hyacinth on the Minjiang River in East China's Fujian province, August 2, 2011. [Photo/Xinhua]

Fish farming areas are surrounded by water hyacinth on the Minjiang River in East China's Fujian province, August 2, 2011. [Photo/Xinhua]

Ships moor amongst water hyacinth on the Minjiang River in East China's Fujian province, August 2, 2011. [Photo/Xinhua]

River users battle invasive water hyacinth|China|chinadaily.com.cn