How did the Mekong river get polluted?
The pollution is due in part to the expansion of rice fields from 3.2 million hectares in 1995 to 3.9 million hectares this year and the increased use of fertilizers and pesticides. Another reason is pond expansion to grow pangasius (basa and tra).
Why is the Mekong River at Risk?
Two main risks include the obstruction of the estimated 600 migratory fish species that swim to their spawning ground and the trapping of sediment by dams upstream that prohibits the replenishment of the delta’s nutrients.
Is the Mekong River delta sinking?
“The Mekong delta is sinking and shrinking because countries have not factored the paramount role of natural sediment replenishment into their decisions on hydropower and sand mining,” said Marc Goichot, WWF Freshwater Lead in the Mekong.
Is the Mekong River dying?
Laos’ Don Sahong, the newest of dozens of Mekong dam projects, began generating electricity close to the Laos-Cambodia border in November. “Those dams and more than 70 others now operational in Laos and China all contribute to deteriorating downstream conditions. …
What is the problem with the Mekong River?
Population growth, poor land-use planning and economic policies that encourage the unsustainable use of natural resources are among the factors increasing deforestation and biodiversity loss across the Greater Mekong region.
How do human activities affect the Mekong River?
Tens of millions of people directly depend on the river and its delta for their livelihoods in farming and fishing. … The natural flood pulses due to the monsoon climate have been altered as a result, and a sediment starvation effect has been induced downstream from the Upper Mekong River.
What is the main effect of climate change in Mekong Delta Viet Nam?
The Mekong River is considered to be one of the most bio-diverse rivers in the world and is greatly affected by distinct wet and dry seasons. Climate change has resulted in the flooding of Vietnam’s rice fields.