Biofuel Agriculture May Import Invasive Species

Switchgrass is a non-invasive species that is being grown for biofuel production in some parts of the United States.

The rush to plant crops for biofuel production threatens to spread invasive plant species that could unleash environmental and economic havoc, according to a new report.

The Kenya-based Global Invasive Species Program (GISP) warns in the report Biofuel Crops and Non-Native Species: Mitigating the Risk of Invasion, that some plants being brought into unique ecosystems can overwhelm native species, threatening the livelihoods and health of those living nearby.

GISP points to the increasing use of the giant reed Arundo donax, which can soak up 500 gallons of water per square yard during its growing period, causing ecological stress in dry regions.

The plant is also naturally flammable and increases the possibility of wildfires.

Brazil’s use of the African oil palm for biodiesel production has turned areas of forest with mixed biodiversity into a homogenous layer of palm trees, the report says.

Photo: USDA
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