South Caspian Lowland

South Caspian Lowland

 

a low-lying region along the southern coast of the Caspian Sea in northern Iran. The lowland measures 525 km in length and 2–6 km in width, broadening to 40 km at the deltas of the Safid and other rivers. Spits, beach barriers, and swamplands are found along the coast. Farther from the sea a plain slopes gently up to the foothills of the Elburz Mountains.

The region has a subtropical climate with more than 1,000 mm of precipitation a year. It has forest sectors of oak, hornbeam, and alder with a lush undergrowth of hawthorn and the cherry plum Prunus divaricata. Lianas also occur. In the river deltas, lagoons, and swamps there are cane and reed thickets and wintering sites for waterfowl.

The lowland has deposits of petroleum, fuel gas, and hard coal. An important agricultural region, it produces rice, tea, cotton, grains, and fruit, including grapes and citrus fruits. The Caspian coast within the lowland is called the Persian Riviera. The most important cities are Rasht, Sari, and Enzeli.