Tuesday, June 10, 2008

See posted comments (0) Post a Comment

Lake Tonga

Tunisia, Algeria
Image does not exist Image does not exist
These two images show the dramatic human induced changes in and around Lake Tonga over the past 12 years. The damming of the feeder rivers of Lakes Tonga and Oubeira (shown in the bottom part of the 2000 image) has resulted in increasing irrigation around the dams and a drastic reduction in the volume of water entering the lake. The 2000 image was acquired during the rainy season, showing an increase in the water volume after the 1999 drought, which had left the lake virtually dry. The widespread ecological changes caused by the construction of dams around Lake Tonga should serve as an eye-opener to the community. Environmental Impact Assessments of the area could assist African policymakers with information to make informed choices about future projects. View detailed information

No comments: