| 优化灌溉与秸秆还田防控黄淮海平原农田土壤次生盐渍害研究 |
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| 引用本文： | 余世鹏,杨劲松,刘广明.优化灌溉与秸秆还田防控黄淮海平原农田土壤次生盐渍害研究[J].灌溉排水学报,2009,28(3). |
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| 作者姓名： | 余世鹏 杨劲松 刘广明 |
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| 作者单位： | 中国科学院南京土壤研究所,南京,210008
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| 基金项目： | 中国科学院知识创新工程重大项目，国家科技支撑计划，中国科学院知识创新工程重要方向性项目，国家高技术研究发展计划(863计划)，国家自然科学基金 |
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| 摘 要： | 优化灌溉处理下玉米水分利用能力提高,根层下(40 cm)土壤含水量低、耗水快,剖面盐分淋洗降低效果明显,但引水花费大,且根层下土壤碱性增加危害作物生长;覆盖处理下土壤水分蒸发减少,作物水分利用率增加,玉米产量及品质最优,但根层下土壤含水量高、耗水慢,剖面盐分淋洗弱、积聚强,土壤次生盐渍害风险大。针对各处理对土壤水盐及作物产量影响的不同利弊权重,提出各处理交叉配合、扬利除弊,提倡秸秆还田覆盖措施下开展节水灌溉,适时进行优化灌溉淋洗盐分和土地深耕降碱,达到节水、增产和防控土壤次生盐渍害的多赢目标。
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| 关 键 词： | 黄淮海平原 优化灌溉 秸秆还田 土壤次生盐渍化 |
Study on Prevention and Control of Secondary Soil Salinization under Intensifying Irrigation and Straw Returning in Huang-Huai-Hai Plain Farmland |
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| YU Shi-peng,YANG Jin-song,LIU Guang-ming.Study on Prevention and Control of Secondary Soil Salinization under Intensifying Irrigation and Straw Returning in Huang-Huai-Hai Plain Farmland[J].Journal of Irrigation and Drainage,2009,28(3). |
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| Authors: | YU Shi-peng YANG Jin-song LIU Guang-ming |
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| Institution: | Institute of Soil Science;Chinese Academy of Science;Nanjing 210008;China |
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| Abstract: | Under the treatment of intensifying irrigation,the water using ability of corn enhanced,the soil water content under the root zone(40 cm) was the lowest and the soil water consumption therein was the fastest,the leaching of salt and decreasing of salinity in the soil profiles was the most intensive,but the cost of water drawing was increased and the soil alkalescence heightened which might harm crop growth.Under the treatment of straw returning,the soil water evaporation reduced but the water using ability ... |
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| Keywords: | Huang-Huai-Hai Plain intensifying irrigation straw returning secondary soil salinization |
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