In Uzbekistan, Ephedra distachya L., E. equisetina Bunge, E. foliata Boiss. ex C. A. Mey., E. lomatolepis Schrenk, and E. strobilacea Bunge show species specificity for habitat environments and physical and chemical characteristics of habitat soils. Furthermore, the relationship between soil characteristics and ephedrine and pseudoephedrine contents was examined. E. distachya was found growing from 80 to 200 m above sea level (a.s.l) in the Plateau Ustyurt on the desert steppe of cliffs on soil having relatively higher loss on ignition (19.8–33.8%) and water-soluble cations (Ca²⁺, 5.14–133.13; Mg²⁺, 0.85–3.18; and Na⁺, 2.27–8.33 mmol/100 g dry soil weight) than for other Ephedra habitats. E. strobilacea was found growing on the flat sandy Kyzylkum desert at 94 m a.s.l. and had habitat soil that was the driest with the lowest loss on ignition (2.9%) and highest Na⁺ (9.05 mmol/100 g dry soil weight) of all the Ephedra habitat soils. On dry steppe from 1054 to 1819 m a.s.l., E. foliata, E. lomatolepis, and E. equisetina formed not only a single community but also a complex community on constantly collapsing sandy gravel slope with relatively higher Ca²⁺ (3.40–17.44 mmol/100 g dry soil weight) soil content. Notably, E. equisetina grew on the dry steppe of constantly collapsing sandy gravel slopes, in rocky areas, on sandy gravel floodplains of rivers, and on stable humus soil at the base of coniferous trees in a wide range of habitats from dry steppe to coniferous forest zones at altitudes ranging from 1392 to 1819 m a.s.l., as reflected in the greater variability than for other Ephedra habitats in the parameters of loss on ignition (1.4–34.8%), pH (7.1–9.6), NO₃⁻ (0.08–35.17 mmol/100 g dry soil weight), Ca²⁺ (0.24–17.44 mmol/100 g dry soil weight), Mg²⁺ (not detected–1.25 mmol/100 g dry soil weight), and Na⁺ (0.13–5.19 mmol/100 g dry soil weight). Ephedrine alkaloids were not detectable in E. strobilacea, E. foliata, and E. lomatolepis. Almost all E. distachya contained only pseudoephedrine (1.25–1.59% of dry weight, %DW), while E. equisetina contained from 1.31 to 2.05%DW ephedrine and from 1.29 to 2.80%DW pseudoephedrine. Ephedrine and pseudoephedrine in E. equisetina showed a statistically significant negative correlation with soil Cl⁻ and Mg²⁺, respectively.

在乌兹别克斯坦，Ephedra distachya L.，E。equisetina Bunge，E。foliata Boiss。来自CA Mey。，E。lomatolepis Schrenk和E. strobilacea Bunge显示了栖息地环境的物种特异性以及栖息地土壤的物理和化学特征。此外，研究了土壤特性与麻黄碱和伪麻黄碱含量之间的关系。在高原Ustyurt的沙漠悬崖草原上的土壤中，发现了E. distachya从海拔80至200 m上升，其着火损失（19.8–33.8％）和水溶性阳离子（Ca ²⁺，5.14–133.13； Mg 2 ⁺，0.85–3.18；和Na ⁺，比其他麻黄生境还少2.27–8.33 mmol / 100 g干土重）。E. strobilacea发现在94 m左右上平沙质Kyzylkum沙漠生长并且有土壤栖息地，这是最干燥的与点火（2.9％）和最高的Na最低损耗⁺所有的（9.05毫摩尔/ 100克干土重量）在麻黄栖息地的土壤。干草原1054至1819年m左右，E. foliata，E. lomatolepis，和E.木贼不仅形成一个社区也对不断折叠砂砾斜率具有相对较高的钙的复合社区²⁺（3.40-17.44毫摩尔/ 100 g干土重量）的土壤含量。值得注意的是，E。equisetina从不断塌陷的砂砾砾石坡地的干旱草原，河流地区的砂砾砾石漫滩，针叶树基部稳定的腐殖质土壤上生长，从高寒草原到针叶林地区从1392到1819 m asl，反映在燃烧损失参数（1.4–34.8％），pH（7.1–9.6），NO ₃ ⁻（0.08–35.17 mmol / 100 g ）方面，与其他麻黄生境相比，其变异性更大干燥土壤重量），Ca ²⁺（0.24–17.44 mmol / 100 g干燥土壤重量），Mg ²⁺（未检测到–1.25 mmol / 100 g干燥土壤重量）和Na ⁺（0.13–5.19 mmol / 100 g干燥土壤重量）土壤重量）。麻黄碱测不出来的E. strobilacea，E .叶和E. lomatolepis。几乎所有的狄氏肠球菌仅含有伪麻黄碱（占干重的1.25–1.59％，％DW），而马马链球菌则含有1.31至2.05％DW麻黄碱和1.29至2.80％DW伪麻黄碱。麻黄碱和在伪E.木贼表现出与土壤氯统计学显著负相关^-和Mg ²⁺分别。