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首页> 外文期刊>Environmental Monitoring and Assessment >Soil water, salt, and groundwater characteristics in shelterbelts with no irrigation for several years in an extremely arid area
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Soil water, salt, and groundwater characteristics in shelterbelts with no irrigation for several years in an extremely arid area

机译:极端干旱地区多年不灌溉的防护林带中的土壤水,盐和地下水特征

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摘要

This paper is based on long-term monitoring data for soil water, salt content, and groundwater characteristics taken from shelterbelts where there has been no irrigation for at least 5 years. This study investigated the distribution characteristics of soil water and salt content in soils with different textures. The relationships between soil moisture, soil salinity, and groundwater level were analyzed using 3 years of monitoring data from a typical oasis located in an extremely arid area in northwest China. The results showed that (1) the variation trend in soil moisture with soil depth in the shelter-belts varied depending on soil texture. The soil moisture was lower in sandy and loamy shelterbelts and higher in clay shelterbelts. (2) Salinity was higher (about 3.0 mS-cm~(-1)) in clay shelterbelts and lower (about 0.8 mS cm~(-1)) in sandy shelterbelts. (3) There was a negative correlation between soil moisture in the shelterbelts and groundwater level. Soil moisture decreased gradually as the depth of groundwater table declined. (4) There was a positive correlation between soil salinity in the shelterbelts and the depth of groundwater table. Salinity increased gradually as groundwater levels declined.
机译:本文基于长期监测数据,这些数据来自于至少五年没有灌溉的防护林带中的土壤水分,盐分和地下水特征。本研究调查了不同质地土壤中水分和盐分的分布特征。利用来自西北极干旱地区典型绿洲的3年监测数据,分析了土壤水分,土壤盐分和地下水位之间的关系。结果表明:(1)防护林带土壤水分随深度的变化趋势随土壤质地的变化而变化。沙质和壤质防护林土壤水分较低,而粘土质防护林土壤水分较高。 (2)粘土防护林的盐度较高(约3.0 mS·cm〜(-1)),而砂质防护林的盐度较低(约0.8 mS·cm〜(-1))。 (3)防护林中的土壤水分与地下水位之间呈负相关。随着地下水位下降,土壤水分逐渐下降。 (4)防护林土壤盐分与地下水位深度呈正相关。随着地下水位下降,盐度逐渐增加。

著录项

  • 来源
    《Environmental Monitoring and Assessment》 |2013年第12期|10091-10100|共10页
  • 作者单位

    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;

    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;

    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;

    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;

    State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Shelterbelts; Soil moisture; Soil salinity; Groundwater level;

    机译:防护林;土壤湿度;土壤盐分;地下水位;

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