| The Saline Soil Was Improved by Engineering Techniques |
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| 作者姓名： | 刘虎俊 王继和 杨自辉 纪永福 贺访印 |
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| 作者单位： | 西北师范大学生命学院，甘肃省治沙研究所，甘肃省治沙研究所，甘肃省治沙研究所，甘肃省治沙研究所 甘肃兰州，730070 甘肃省治沙研究所，甘肃武威，733000，甘肃武威，733000，甘肃武威，733000，甘肃武威，733000，甘肃武威，733000 |
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| 基金项目： | 国家“十五”科技攻关项目(2002BA517A09)资助 |
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| 摘 要： | 在河西走廊的盐渍化土地上,建立明沟排水、井排和干排(植物)的排水系统,将深耕、客土等农艺措施与淡水洗盐结合,应用地表覆盖、免耕和沟植技术形成了盐渍化土地的工程治理系统。应用减产系数法计算工程治理的效益,治理区的减产系数下降了0.40个百分点,即土壤的总体质量提高了60%,其中粮食产量增加了69.13%,种植面积增加了49.44%,取得了良好的效果。
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| 关 键 词： | 干旱区 盐渍化土地 工程治理 |
The Saline Soil Was Improved by Engineering Techniques |
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| Authors: | Liu Hujun Wang Jihe Yang Zihui JI Yongfu |
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| Institution: | (1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu; 2Gansu Desert Control Research Institute, Wuwei, 733000,Gansu, China) |
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| Abstract: | An improving engineering techniques system for saline soil was established with open channel, well and botanic drainage system, combined depth tillage with eluviations by fresh water in saline land of Hexi Corridor. The reduction coefficient of output is used to calculate benefit of engineering improved saline soil after nine years. The reduction coefficient of output decrease 0.40, which means the quality of land to increases 60%. At all of amount of the yield of grain increases 69.13%, the area of cultivation increases 49.44%. A good result shows by the improving saline soil system of engineering techniques. |
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| Keywords: | Arid zone Saline soil Engineering improvement |
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