Effects Of Different Ways To Improve The Effect Of Saline Soil Improvement And Growth Of Bamboo Willow

This paper focuses on making improvements experiment on soil of Tuoketuo County highway greening project with different soil improvement mode, and conducting impact greening trees (bamboo willow) growth generated by analysis, soil survey of soil conditions of each observation period, bamboo willow growth conditions within one year, in order to study the gypsum and humic acid making improvement on effect of saline-alkali soil, and to take physical improvement (overburden pressure base,drainage) way to effect improvement of saline-alkali soil analysis, and then provide a reference for soil improvement greening projects. Specific performance in the following aspects:1. Changes in soil chemical properties. pH:Soil pH value of the improved Zone 1, Zone 2, Zone 3 is less than 9, and are significantly lower than the same period of the control area; Alkalinity:Soil alkalinity of Zone 1, Zone 2, Zone 3 declines significantly, is lower than the control area, and in 20%,10% or less during the individual; Total Salt: Zonel and Zone 2 soil total salt content was significantly higher in the first, last and gradually decreased, total salt content of the soil in Zone 3 fell significantly, and zone 3 has been lower than the control area. Soil test results from the last point of view, Zone 1, Zone 2, Zone 3 soil total salt content in 1.8g/kg or less; Ion Condition:Zone 1 and Zone 2 soil calcium, sulfate ion increased significantly, Zonel, Zone2, Zone3 soil sodium, chloride significantly reduced, carbonate ions was little, bicarbonate ions lower than the control Area; Overall, the degree of soil salinization, alkalization degree in Zone 1, Zone 2, Zone 3 lower than the control area.2. Changes in soil nutrients. After soil improvement, the content of Zonel and Zone 2 of soil total N, P and K higher than the control zone, Zone 3 did not change significantly.3. Effect of bamboo willow growth. Zone 1, Zone 2, Zone 3 bamboo willow survival rate was significantly higher than the control area, Zone 1, Zone 2, Zone 3 survival rate of bamboo willow were 85.34%,82.10%,77.73%, Willow bamboo DBH, diameter greater than the control zone, lush foliage degree were significantly higher than the control area.