What are the records about Iquikul in history?

The paleontological excavation unearthed in 1947- 1949 was studied in the early stage. Strata and fossils were studied under the auspices of the Ministry of Geology and Minerals of Tunisia. Tunisia National Institute of Marine Geographic Science and Technology, University of London and University of Tunis * * * conducted environmental research in Yiqi Keul Lake. From 65438 to 0963, Tunisia cooperated with the University of London and the International Wetland and Waterfowl Research Institute to implement the Waterfowl Observation and Research Program. Park research institutions are scheduled to open the Ecological Museum in the tourist season 1989- 1990. Lake Iquikul and wetlands have become the stopping places for thousands of migratory birds, such as geese, ducks, storks and flamingos. A series of lakes that once crossed North Africa only left Lake Iquikul.

The national park established to protect Lake Iquikul is one of the most important wetlands in the Mediterranean region. This is especially important for many wintering waterfowl and various terrestrial and aquatic ecosystems in Palaearctic realm. At the same time, the park preserves mammal fossils of international importance. 1977 formulated a management plan, which was later incorporated into the national parks law. Subsequently, additional research plans for water area management were added. The whole protected area is divided into several parts. Including the central area of Lake Iquikul, the mountain area of Iquikul, the swamp environment area and the external buffer area of 6,000 hectares. The main goal is to control the water level and salt content of the lake, maintain the expansion of POTAMOGETON and provide food for migratory birds. Now it is necessary to build a sluice to control the salt content of the lake, limit the backflow of seawater and curb the loss of fresh water.

Because human activities have destroyed the ecosystem of Yiqikul, 1996 has been included in the world endangered heritage list. Two dams upstream reduce the fresh water entering the lake. 1996 the report issued by the Ministry of environment of Tunisia pointed out that the fresh water flowing into lakes has been seriously reduced, which leads to the increase of salt content in lakes and swamps, thus changing the food chain, because POTAMOGETON, the main food of waterfowl, has been greatly reduced in winter. The plants that birds can eat may be reduced by 20%. Reed by the lake completely disappeared, and the number of migratory birds decreased. Since 1996, flocks of wild ducks, beaked ducks and black-tailed snipes have disappeared. In winter, the number of waterfowl is decreasing, and the number of grey geese is also decreasing. All the birds that depend on reeds have disappeared. At the same time, the park faces institutional problems, such as the lack of independent institutions and budget funds. A large number of exposed stone and granite quarries occupy the southern slope of Mount Iquikul. Reduce the soil quality on the hillside. Residents in the park overgraze and cut down trees. Commercial fishing, logging and agricultural development pose another threat. 1995/ 1996 After the rainstorm, the ecosystem was partially restored. Although the number of grey geese and hunting birds is still small, the number of winter birds in the west of Kuer Lake in Yiqi has reached 100000. 1996/ 1997 There is little rainfall in winter, and the park may face a severe situation again.