| 冬小麦田咸水灌溉与土壤盐分调控试验 |
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| 引用本文： | 郭会荣,靳孟贵,高云福.冬小麦田咸水灌溉与土壤盐分调控试验[J].地质科技情报,2002,21(1):61-65. |
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| 作者姓名： | 郭会荣 靳孟贵 高云福 |
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| 作者单位： | 中国地质大学工程学院,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目 ( 4 9972 0 83)，教育部高等学校骨干教师资助计划项目 |
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| 摘 要： | 利用浅层咸水灌溉，可使浅层咸水分布区无效降水转化为有效水资源，缓解北方水资源紧缺的矛盾；通过王瞳试验场进行的咸水灌溉与土壤盐分调控试验表明，利用3g/L左右的微咸水连续灌溉5a，根层土壤溶液浓度未超过小麦的耐盐能力，且作物增产；多年盐分变化趋势为：1994－1997年1m深度内土壤总含盐量在一定范围内波动，总体变化不大，连续干旱的1997－1998年略呈上升趋势；麦秸覆盖和施有机肥能减少根层土壤盐分，对土壤盐分具有有利的调控作用，具有增产效果。
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| 关 键 词： | 咸水灌溉 土壤盐分调控 覆盖 有机肥 冬小麦 水质 |
| 文章编号： | 1000-7849(2002)01-0061-05 |
| 修稿时间： | 2001年9月19日 |
EXPERIMENTS ON IRRIGATION WITH BRACKISH GROUNDWATER AND MANAGEMENT OF SOIL SALT IN WINTER WHEAT FIELDS |
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| GUO Hui rong,JIN Meng gui,GAO Yun fu.EXPERIMENTS ON IRRIGATION WITH BRACKISH GROUNDWATER AND MANAGEMENT OF SOIL SALT IN WINTER WHEAT FIELDS[J].Geological Science and Technology Information,2002,21(1):61-65. |
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| Authors: | GUO Hui rong JIN Meng gui GAO Yun fu |
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| Abstract: | Irrigation with brackish groundwater can promote the transform of precipitation into available water resources in area of shallow saline water and relax water shortage in Northern China.As a case study of brackish groundwater irrigation in arid and semi arid areas, experiments in Wangtong experimetal area are discussed in detail. After continuous 5 years' irrigation by brackish groundwater (TDS of 3-4 g/L) in Wangtong experiment area, the salt accumulated in the soil does not go beyond the crop salt tolerance and the crop yield has increased. The balance of soil salinity is maintained during 1994-1997, but soil salinity tends to rise in 1997-1998 because of little rainfall in 1997. While wheat straw mulching and fertilization treatment can decrease soil salinity in root zone and increase crop yields,which may favour the beneficial to management of soil salt while irrigation by brackish groundwater. |
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| Keywords: | irrigation with brackish groundwater management of soil salt mulching organic fertilizer |
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