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应用砂培试验对苇状羊茅盐胁迫下的生理效应进行了研究，通过对苇状羊茅盐胁迫下的相对鲜重、相对干重、根冠比、脯氨酸含量、叶绿素含量及根系活力进行测定，表明：低浓度的盐处理下，苇状羊茅生长未表现出受不利因素影响，但此时羊茅已对外界高渗溶液做出生理反应，叶片中脯氨酸含量成倍增加；随着盐胁迫浓度的增大，羊茅相对鲜重、相对干重、根系活力均降低，生长和生理上都表现出盐害效应，同时叶片中脯氨酸和叶绿素含量增加，反映了羊茅自身为抵御外界不良盐渍环境所做出的适应性生理效应。羊茅根冠比随着盐胁迫浓度的增加而增大，二者呈显著正相关，表明了ＮａＣｌ胁迫对羊茅地上部分的危害大于地下部分。
The sand culture experiment was conducted to study the physiological effects of salt stress on the reed fescue. The effects of salt stress on the relative fresh weight, relative dry weight, root / shoot ratio, proline content, chlorophyll content and root system The results showed that under low salt treatment, the growth of tall fescue did not appear to be affected by unfavorable factors, but at this time, fescue had physiologically responded to the external hypertonic solution and the content of proline in leaves was doubled Increased; With the increase of salt stress, Fescue relative fresh weight, relative dry weight, root activity decreased, the growth and physiology showed salt damage effect, at the same time proline and chlorophyll content increased, reflecting Fescue itself to resist the adverse external environment made by the adaptive physiological effects. The ratio of root and shoot of Forsythia pseudoacacia increased with the increase of salt stress concentration. The two showed a significant positive correlation, indicating that the damage of NaCl stress to the aerial part of fescue was more serious than the underground part.