xerosphere

English

Etymology

xero- +‎ -sphere

Noun

xerosphere (plural xerospheres)

1. A region with extremely arid conditions; a desert environment.
   • 1984, The Daffodil Journal - Volumes 21-22, page 136:

     We do use the latter across the brook where they make a "lawn" on a rock on rock lateral moraine under big sugar maples, and where absolutely nothing else will grow but the invading pioneers of the xerosphere such as brambles.

   • 2001 April 13, Don K., “What Would You Do?”, in misc.consumers.frugal-living (Usenet):

     What about a xerosphere? Be the first on your block to fill the yard with sand, rocks and ocotillo.

   • 2009, Rajan Kumar Gupta, Mukesh Kumar, Deepak Vyas, Soil microflora, page 252:

     They are the pioneer colonizers both in hydrosphere and xerosphere and occupy the base of the trophic pyramid.