| 甘肃秦王川灌区土壤盐分特征及次生盐渍化预测 |
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| 引用本文： | 张明泉,曾正中.甘肃秦王川灌区土壤盐分特征及次生盐渍化预测[J].干旱区资源与环境,1993(2). |
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| 作者姓名： | 张明泉 曾正中 |
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| 作者单位： | 兰州大学地质系 兰州:730000
(张明泉)，兰州大学地质系 兰州:730000(曾正中) |
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| 摘 要： | 在秦王川灌区水文地质条件和土壤盐分含量特征调查研究的基础上,采用有限差分法建立了预测模型,对灌溉实施后1～5年间地下水位及其埋深变化进行了预测。结果表明,地下水位呈普遍抬升趋势,可导致约2000ha土地产生次生盐渍化。如果不及时采取防治措施,土壤次生盐渍化面积还会进一步扩大。
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| 关 键 词： | 干旱灌区 潜水蒸发 预测模型 土壤次生盐渍化 |
THE SOIL SALTS FEATURES AND THE FORECAST OF SECONDARY SOIL SALINIZATION IN QINWANG CHUAN IRRIGATION AREAS,GANSU PROVINCE |
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| Zhang Mingquan,Zeng Zhengzhong.THE SOIL SALTS FEATURES AND THE FORECAST OF SECONDARY SOIL SALINIZATION IN QINWANG CHUAN IRRIGATION AREAS,GANSU PROVINCE[J].Journal of Arid Land Resources and Environment,1993(2). |
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| Authors: | Zhang Mingquan Zeng Zhengzhong |
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| Institution: | Zhang Mingquan,Zeng Zhengzhong Department of Geology,Lanzhou University,Lanzhou: 730000 |
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| Abstract: | Based on the investigation of the hydrogeological condition and thesoil salts content in Qin Wang-Chuan arid irrigation areas, the forecastmodel has been built using finite difference method. The groundwaterlevels during irrigation in five years have been forecasted by the model.The results indicated that the groundwater levels in Qin Wang-Chuanirrigation areas will be going up widespreadly. About 2000ha cutivatedland will occur secondary salinization. If the preventive measures wouldnot adopt in good time, the areas of the secondary salinization of soilwould expand further. |
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| Keywords: | Arid Irrigation Groundwater Evaporation Forecast Model Secordary Salinization of Soil |
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