| 不同灌水量对碱化土的影响 |
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| 引用本文： | 陈冰,蒋平安.不同灌水量对碱化土的影响[J].干旱区地理,2005,28(1):103-106. |
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| 作者姓名： | 陈冰 蒋平安 |
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| 作者单位： | 新疆农业大学资源环境学院,乌鲁木齐,830052;新疆农业大学资源环境学院,乌鲁木齐,830052 |
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| 基金项目： | 国家科技部“十五”攻关项目(2002BA517A-07、2004BA606A-10)，土壤学自治区重点学科基金资助 |
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| 摘 要： | 碱化土壤上不同定额灌水量试验研究表明，电导率与可溶性盐是成正比关系，电导率、可溶性盐与pH成反比关系。灌水量对土壤总盐及盐分组成中CT、SO4^2-的影响较人；随着灌水量的增加，表层土壤中HCO3^-增加，pH上升。灌水量必须大于一定的量才具有洗盐作用。
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| 关 键 词： | 灌水量 碱化土 可溶性盐分 pH |
| 文章编号： | 1000-6060(2005)01-0103-04 |
| 修稿时间： | 2004年7月20日 |
Effects of Irrigation with the Different Irrigation Water Volumes on Alkaline Soil |
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| CHEN Bing,JIANG Ping-an.Effects of Irrigation with the Different Irrigation Water Volumes on Alkaline Soil[J].Arid Land Geography,2005,28(1):103-106. |
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| Authors: | CHEN Bing JIANG Ping-an |
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| Abstract: | The Newly reclaimed soil in the Karamay Agricultural Development Region has high salt content, poorfertility, mucilaginous and heavy texture, and is seriously eroded by wind.It is difficult to plant crops if the soil isnot improved.The coverage of the desert natural vegetation dominated by Tamarix spp, Haloxylon ammodendron,Populus euphratica, etc., is low due to the shortage of water resources and the less in precipitation.In this paper,the effects of soil improvement by irrigation with the different irrigation water volumes in the KaramayAgricultural Development Region are analyzed so as to provide the scientific basis for rapidly improving thealkaline soil.The results show that there is a positive relationship between the EC value and soluble salt content,however, there is also a negative relationship between the EC value, soluble salt and pH value.The irrigationwater volume affects significantly the contents of total salt,Cl- and SO4 in soil;with increasing the irrigation 2-water volume,HCO3 content in topsoil and pH value are increased.Desalinization of the soil can be achieved by -increasing irrigation water volume. |
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| Keywords: | irrigation water volume alkaline soil soluble salt pH value |
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