| Impact ID | 9343 |
| Impact Type | Habitat Alteration |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In South Africa and the southwestern United States, dense stands of Arundo donax reduce the carrying capacity of waterways by narrowing water channels. |
| Reference | 42844 |
| Cost | |
| Location | South Africa and Southwestern U.S.A |