Agropyron cristatum (L.) Gaertn is a dominant perennial grass in Otindag Sandland, China. The survival and distribution of A. cristatum mainly depends on the mechanisms ensuring germination and seedling development at the right time and in a suitable place. We investigated the sand water content from April to October in Otindag Sandland and the responses of seed germination, seedling emergence and seedling growth in A. cristatum to sand water content (1, 2, 3, 4, 6, 8, 12, 16 and 20%). Results showed that t...