Abstract: Taking the annual Sorghum plants (Sorghum bicolor (L.) Moench. cv. Hunnigreen, Sorghum bicolor × S. sudanense cv. Everlush, and Sorghum sudanense (Piper) Stapf cv. Xinjiang) as test materials, a pot experiment was conducted to study their root vitality, leaf proline content, and leaf- and root cell membrane permeability under the stress of different concentration soil cadmium (Cd). When the soil Cd concentration was higher than 25 mg·kg^-1, the root vitality of the Sorghum plants decreased significantly (P<0.05), and in all treatments with Cd, the leaf proline content had a significant increase (P<0.05), and the leaf- and root cell membrane permeability increased to some extent.

Key words: Spatial neighboring characteristics, Oasis, Ecological security, Jinta County