| 地膜覆盖对耕层土壤盐分影响的研究 |
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| 引用本文： | 刘子英,刘保明,孟艳玲,李季. 地膜覆盖对耕层土壤盐分影响的研究[J]. 安徽农业科学, 2005, 33(6): 995-995,1019 |
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| 作者姓名： | 刘子英 刘保明 孟艳玲 李季 |
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| 作者单位： | 河北工程学院农学院,河北,邯郸,057150;中国农业大学资源与环境学院,北京,100094;河北工程学院农学院,河北,邯郸,057150;中国农业大学资源与环境学院,北京,100094 |
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| 摘 要： | 利用定期取土样测定其土壤全盐量及离子组成的方法,监测了地膜覆盖后土壤耕层盐分的变化。结果表明:①覆盖地膜后,0～5cm土壤脱盐率达50%左右,且随着覆盖时间的延长,表层脱盐率有增加的趋势。②覆膜抑盐效果最明显的离子组分为:阴离子为氯离子,阳离子为钙离子,其占全盐量的比例分别比对照区降低了18.7%和4.6%。
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| 关 键 词： | 地膜覆盖 土壤盐分 抑盐效果 脱盐率 |
| 文章编号： | 0517-6611(2005)06-0995-01 |
Study on Effectings of Salt Content in Farmland Covered by Plastic Film |
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| LIU Zi-ying et al. Study on Effectings of Salt Content in Farmland Covered by Plastic Film[J]. Journal of Anhui Agricultural Sciences, 2005, 33(6): 995-995,1019 |
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| Authors: | LIU Zi-ying et al |
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| Abstract: | By means of determining salt content and its composition,the salinity variation is monitored in the field plot experiments.The results were as follows:①Covered by plastic film,the salinity in surface layer decreased by 50 % or so.And the longer it is covered,the more reductions it has.②The ion which is reduced most is Cl- and Ca2+.The number is 18.7 % and 4.6 % individually. |
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| Keywords: | Covered with plastic film Soil salinity |
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