| 农田耕作与土壤盐分的变化 |
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| 引用本文： | 雷玉平,田魁祥,孙景玉,山崎 素直,但野 利秋. 农田耕作与土壤盐分的变化[J]. 中国生态农业学报, 1995, 3(3): 71-74 |
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| 作者姓名： | 雷玉平 田魁祥 孙景玉 山崎 素直 但野 利秋 |
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| 作者单位： | 中国科学院石家庄农业现代化研究所 石家庄 050021;中国科学院石家庄农业现代化研究所 石家庄 050021;中国科学院石家庄农业现代化研究所 石家庄 050021;日本东京大学 东京都 113;日本北海道大学 札幌市 060 |
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| 摘 要： | 采用原状土隔离池进行了盐分运移的定位试验。结果表明：含盐量0.11-0.28%的轻盐渍化或脱盐潮土处在不断脱盐过程中，平均年脱盐速率为0.0125%；小麦种植期，土壤处于返盐过程，盐分在上层积累；夏玉米种植期，土壤处于脱盐过程；盐分运动是一个盐离子的层次间传递过程，不同盐离子传递的强度不同，以氯根和纳离子变动最大，而硫酸根和钙离子变幅较小，碳酸根较稳定。
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| 关 键 词： | 农田耕作 土壤盐分含量 脱盐 |
| 收稿时间： | 1995-04-17 |
Crop Cultivation and the Changing of Soil Salt Contents |
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| Lei Yuping,Tian Kuixiang,Sun Jingyu,Sunao Yamazaki and Toshiaki Tadano. Crop Cultivation and the Changing of Soil Salt Contents[J]. Chinese Journal of Eco-Agriculture, 1995, 3(3): 71-74 |
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| Authors: | Lei Yuping Tian Kuixiang Sun Jingyu Sunao Yamazaki Toshiaki Tadano |
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| Affiliation: | Institute of Agricultural Modernization,CAS,Shijiazhuang 050021;Institute of Agricultural Modernization,CAS,Shijiazhuang 050021;Institute of Agricultural Modernization,CAS,Shijiazhuang 050021;Tokyo University,Tokyo 113 Japan;Hokkaido University,Sapporo 060 Japan |
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| Abstract: | Location tests on soil salt movement was carried out by using isolated pool with undisturbed soil.Results showed that during crop cultivation period the mildly salinized or desalted Chao soil with salt content of 0.11-0.28% went on desalination at rate about 0.0125% per year.During the winter wheat season soil salt moved upward and accumulated on top layer of soil,during summer maize season the soil salt moved downwards to deeper layer of soil.Salt movement can be taken as thetransfer of salt ions among soil layers,and the intensity of movement for different salt ion is difference with that of CL- and Na+ being more than SO4-2 and Ca+2,while CO3-2 rarely moves. |
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| Keywords: | Crop cultivation Soil salt content Desalting |
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