| 内蒙古河套灌区碱化土壤的发生原因和特性 |
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| 引用本文： | 桑以琳.内蒙古河套灌区碱化土壤的发生原因和特性[J].土壤学报,1996,33(4):398-404. |
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| 作者姓名： | 桑以琳 |
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| 作者单位： | 内蒙古农牧学院水利工程系 |
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| 摘 要： | 本文简述了内蒙古河套灌区自然概况，盐渍化演变过程和碱化土壤的改良现状。着重揭示灌区内碱化土壤的发生原因、类型、性质和特点。该地区碱化土壤发生原因：１．灌区内最严重的碱化土壤大部分因地下水含大量残余碳酸钠，在干旱气候条件下经强烈蒸发而成。主要特点是通体碱化度高，改良难度大。２．地下水和地表水中的钠离子，受各种因素影响在土体中富集并进入土壤吸收性复合体而使土壤碱化。这部分碱化土壤一般表层碱化度较高，而
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| 关 键 词： | 内蒙古河套灌区 灌区 碱化土壤 类型 性质 土壤 |
| 收稿时间： | 1995/12/26 0:00:00 |
FORMATION PROPERTIES AND CHARACTERISTICS OF ALKALIZED SOIL IN THE HETAO IRRIGATION DISTRICT OF NEI MONGOL |
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| Sang Yilin.FORMATION PROPERTIES AND CHARACTERISTICS OF ALKALIZED SOIL IN THE HETAO IRRIGATION DISTRICT OF NEI MONGOL[J].Acta Pedologica Sinica,1996,33(4):398-404. |
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| Authors: | Sang Yilin |
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| Affiliation: | Hydraulic Engineering Department of Inner Mongolia College of Agriculture and Animal Husbandry, 010018 |
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| Abstract: | This paper briefly introduces the nature conditions, salinization and current amelioration situation of alkalized soils in the Hetao irrigation district, Nei Mongol. Formation, properties and characteristics of the alkalized soil in the district are revealed in the paper Formation of alkalized soils in the district are summarized as follows: 1. Most of the seriously alkalized soils in the district were formed due to large quantity of residual sodium carbonate and intense evaporation of ground water under arid climatic conditions, being characterized by high degree of alkalization of whole soil profile. 2. Sodium ions contained in ground and surface water were concentrated by absorbing complexs in the soils under the influences of various factors. The soil surface are commonly found with a high degree of alkalization. 3. Some low-lying land soils were alkalized as a result of biological actions. |
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| Keywords: | The Hetao irrigation district of Nei Mongol Soil Alkalization Formation Characteristics |
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