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| 脱硫石膏改良碱土5年后稳定性跟踪研究 | |
| 引用本文： | 其力格尔,李跃进,崔智勇,包金泉,景宇鹏.脱硫石膏改良碱土5年后稳定性跟踪研究[J].内蒙古农业科技,2012(3):73-76. |
| 作者姓名： | 其力格尔 李跃进 崔智勇 包金泉 景宇鹏 |
| 作者单位： | 1. 内蒙古农业大学生态环境学院,内蒙古呼和浩特,010019 2. 呼伦贝尔市农业技术推广服务中心,内蒙古海拉尔,021008 3. 呼伦贝尔市海拉尔区农业技术推广中心,内蒙古海拉尔,021000 |
| 摘 要： | 选择土默川平原草甸碱土为研究区域,以脱硫石膏改良碱土保持放牧草地利用5年后为研究对象,通过定位监测小区试验的方法,探索改良碱土效果的稳定性。结果表明:土壤碱化度,各改良处理0~20cm土层碱化度保持基本稳定;20~40cm土层碱化度呈现回升趋势,但是明显低于对照区,仍然保持一定的改良效果。土壤pH值各改良处理0~20cm土层都有所回升,但均小于9.0,仍然低于对照区,依然保持改良效果;20~40cm土层pH值变化比较平缓,稳定性较好。土壤全盐量各改良处理0~20cm土层都有所下降;保持持续的改良效果;20~40cm土层全盐量各处理下降与回升表现有所差异,表明不同处理呈现不同的改良效果与稳定性;0~40cm土层含盐量,2011年结果仍然低于2006年含盐量。 |
| 关 键 词： | 脱硫石膏 改良碱土5年 稳定性 |
The Study of Alkaline Soil stability Track after 5 Years Improved by Desulphurization Gypsum |
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| Institution: | Qiligeer(College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Hohhot 010018,China) |
| Abstract: | The study area was conducted in meadow Alkaline soil at the Tumochuan plain.The research target grassland was improved by desulphurization gypsum before 5 years and kept grazing to now.The saline-alkali soil characteristics and stability were analyzed concretely.Effect in improvement of alkaline soil were analyzed through the method of plot experiment with located monitoring.The results showed: the degree of alkalization of each treatment kept essence of stabilization in the 0cm~20cm soil layer and 20cm~40cm showed the rising tread,but it was less than the control;it is obvious effect that was improved.All of the soil pH values were rising at 0cm~20cm layer and there were less that 9.0 that it was still lower than control.The pH values change very slowly that it had a better stability.The total salt of each improved treatment are decreased at 0cm~20cm soil layer and 20cm~40cm soil layer has different trends.It indicates different treatments showed different improved effect and stability.In the 0cm~40cm soil layer,the content of salt results is lower in 2011 than 2006,it is more validate S2 is the optimum treatment area. |
| Keywords: | Desulphurization gypsum Improved alkaline Stability |
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