| 宁夏引黄灌区盐渍化发展变化趋势及治理对策 |
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| 引用本文： | 张伟,沈振荣.宁夏引黄灌区盐渍化发展变化趋势及治理对策[J].甘肃农业科技,2005(11):40-43. |
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| 作者姓名： | 张伟 沈振荣 |
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| 作者单位： | 1. 宁夏回族自治区农业综合开发办公室,宁夏,银川,750001
2. 宁夏回族自治区农垦管理局农业综合开发办公室,宁夏,银川,750001 |
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| 摘 要： | 采用先进的“3S”信息技术,应用GIS先进的空间图层叠加分析功能对宁夏引黄灌区各级盐渍化耕地分布规律和灌区土壤盐渍化的演变规律调查的基础上,提出宁夏引黄灌区土壤盐渍化的治理对策是:进一步完善的灌排体系与防渗措施;对灌区干渠进行砌护防渗治理;加强排水,调控地下水位;平田整地减少灌溉量;耕作培肥,提高土壤肥力;农艺栽培措施的运用;实施动态监测,加强预测预报。
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| 关 键 词： | 引黄灌区 土壤盐渍化 3S 分布规律 演变规律 防治对策 宁夏 |
| 文章编号： | 1001-1463（2005）11-0040-04 |
| 收稿时间： | 2005-08-15 |
| 修稿时间： | 2005年8月15日 |
Development and Change Trend of Salinization in Yellow River Irrigation Area of Ningxia and Countermeasures for Its Control and Improvement |
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| ZHANG Wei,SHEN Zhen-rong.Development and Change Trend of Salinization in Yellow River Irrigation Area of Ningxia and Countermeasures for Its Control and Improvement[J].Gansu Agricultural Science and Technology,2005(11):40-43. |
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| Authors: | ZHANG Wei SHEN Zhen-rong |
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| Institution: | 1. Ningxia Agricultural Comprehensive Development Office, Yinchuan Ningxia 750001,China;2. Ningxia Bureau of Agricul- tural Reclamation, Yinchuan Ningxia 750001,China |
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| Abstract: | The distribution law of salinized farmland of various grades and evolution law of soil salinization in the Yellow River Irrigation Area of Ningxia were surveyed using advanced"3S"information technology and advanced overlay function of GIS The countermeasures for control of the soil salinization in the Yellow River Irrigation Area were put forward: further improvement of irrigation and drainage system and seepage control measures;control of seepage through lining of the main canals in the irrigation area;strengthening drainage and regulating underground water;leveling the farmland and reducing irrigation volume;improving soil fertility through tillage and nourishment;adopting agronomical and cultivation measures;implementing dynamic monitor and strengthening forecast. |
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| Keywords: | Yellow River irrigation area Soil salinization 3S Distribution law Evolution law Countermeasures for control Ningxia |
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