Compared with the ramet population in the semi-fixed dunes ,the ramet population in the fixed dunes exhibited higher ramet density and longer rhizome internode,but smaller average ramet spacing.

• 2)固定沙丘的羊柴分株种群与半固定沙丘比具有较大的密度和较长的根状茎节间，较小的平均株距，但两种生境中的分株高度是相似的。