title: How to download SoilGrids250m globally at one time?
body: <p>I have tried so many ways, the most efficient one is the <em>soil_world</em> function of <em>geodata</em> package in <em>R</em> environment. I successfully downloaded all the global data <strong>except</strong> <em>clay at the 0-5 cm depth</em>, cause the raster pixels were all null values by applying the function, something went wrong but I couldn't figure it out. So I must find another approach to download <em>clay at the 0-5 cm depth</em>.</p>
  <p>On <a href="https://soilgrids.org/" rel="nofollow noreferrer">https://soilgrids.org/</a>, you can only choose one tile (limited within 2°*2°) each time, and the tutorial of <em>R</em> on the WebDAV (<a href="https://www.isric.org/explore/soilgrids/soilgrids-access" rel="nofollow noreferrer">https://www.isric.org/explore/soilgrids/soilgrids-access</a>) didn't work for me.</p>
  <p>It seems the only way is to download the global <strong>VRT</strong> file, but I'm not sure how to process a <strong>VRT</strong> file in <em>R</em>, like, how to convert it to the GTiff format for next processing?</p>
  <blockquote>
  <p>Hope there's someone had experience downloading SoilGrids250m globally
  at one time, really appreciate your help!</p>
  </blockquote>