Compared to Stipa Bungeana grasslandandfallowground, the volume weight was smaller, totalporosity and capillary porosity were higher, butnon-capillary porosity was lower.
小芨芨草，拉丁文名：Achnatherum caragana (Trin. et Rupr.) Nevski 禾本科、芨芨草属多年生，须根较粗韧，有时具砂套。秆直立，丛生，较细，光滑，叶鞘短于节间，平滑无毛；截平，顶端不规则齿裂且具细短纤毛；叶片纵卷，质地较硬，直立，粗糙。圆锥花序疏松开展，生于干旱石质山坡，海拔900-1200米。