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https://www.selleckchem.com/products/Adriamycin.html ion and interpret the uncertainty propagated from parameters, which was useful for predicting forest regeneration.Plots were set on the top, middle and bottom of the stony desert alluvial fan in the middle of southern foothills of the Tianshan Mountains. With plant height and crown size as indicators, the spatial heterogeneity of Ephedra przewalskii populations in the stony desert were studied using geostatistical methods. Understanding the spatial heterogeneity characteristics of E. przewalskii populations could provide scientific basis for vegetation protection and ecological restoration in stony deserts. The results showed that E. przewalskii had a patchy distribution at the top of the alluvial fan. At the middle and bottom of the alluvial fan, it showed a banded distribution. The band width in the middle was larger than that at the bottom. From the top to the bottom of the alluvial fan, the overall plant height and crown size of E. przewalskii populations decreased first and then increased. The average plant height on the top, middle and bottom of the alluvial fan was 40.34, 21.07, 36.96 cm, and the crown size were 1.09, 0.80, 1.43 m2, respectively. The best fitting models for plant height of E. przewalskii were the exponential model, the exponential model, and the linear model at the top, middle and the bottom of the alluvial fan, respectively, while the best fitting models for crown size were exponential model, spherical model, and linear model. From the top to the bottom of the alluvial fan, the fractal dimension value of plant height and crown size of E. przewalskii ranged from 1.909 to 1.889, indicating that the spatial pattern of E. przewalskii populations was simple and the spatial homogeneity was high. From the top to the bottom of the alluvial fan, the spatial distance of the anisotropy of plant height and crown size of E. przewalskii gradually shortened. At the top, middle and bottom of the alluvial

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