About the Caspian sea area today:

  • The south is very lush with the subtropical forests of the Iranian provinces of Gilan, Mazandaran and Golestan (although less "tropical" in Golestan)
  • The west tends to be lush with subtropical (?) thicket and also forests around Baku and lots of thicket at least up to Derbent
  • The north is pretty much part of the Euroasian Steppe but might not have been until the rise of the Khazar empire or earlier --- Scythian empire in the region which might have caused significant deforestation although still has some rich thicket/grove areas left today

And yet, the eastern coast of the Caspian sea seemed to me from almost any image as a dry "wasteland", with almost no thicket and certainly nothing I would name "a forest".

Why are the south, the west and the north of the Caspian sea lush but its east completely dry?


1 Answer 1


The mountains.

Caspian see

The south has a steep relief, as well as the west. That means that there is much precipitation. The clouds throw every drop on these mountains, so almost nothing is left. The east is pretty low, so the remaining clouds (not much left) just fly over. In fact, deserts are generally not steep and they are usually behind the mountains. That is right what happens here. On the north, the effects of the west are still felt, so it isn't so dry, but it is pretty low, too. Also, I wouldn't say that it's lush : )

  • $\begingroup$ +1 The lowest part around the Caspian Sea locates near Aktau, Kazakhstan which has an elevation of about 110 meters below sea level. $\endgroup$ Aug 9, 2023 at 21:03
  • $\begingroup$ I don't understand why you write "remaining" clouds and "not much left". Left from what? If the clouds form above the sea and go east, they aren't "remaining" but newly formed. It's highly unlikely the clouds go west first, rain down over the Caucasus and remaining ones then go to the east shore of the Caspian Sea. Or what do you mean? $\endgroup$
    – user29677
    Sep 26, 2023 at 10:10

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.