clayey       
adjective uk/ˈkleɪ.i/ us/ˈkleɪ.i/
 黏土含量高的
containing a lot of clay
  clayey soil 黏质土 
 The horses hooves made a slapping sound as they walked through the thick, clayey mud. 马走过厚厚的黏土地,马蹄发出啪嗒声。 
 See: clay
 - More examples
 - Perhaps the soil is too clayey or insufficiently drained.
 - The clayey earth was as cracked as the face of an old oil painting.
 - Wild garlic poked out through the clayey bank.