1. 
   Sandhill
   A sandhill is a type of ecological community or xeric wildfire-maintained ecosystem. It is not the same as a sand dune. It features very short fire return intervals, one to five years. Without fire, sandhills undergo ecological succession and become more oak dominated. Entisols are the typical sand...
   Found op http://en.wikipedia.org/wiki/Sandhill
   
   
2. 
   sandhill
   1) Dune
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/sandhill/1
   
   

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