| 污水灌区土壤盐分动态研究 |
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| 引用本文： | 蔡思义,郑振华,陆华,杨虹,张金凤.污水灌区土壤盐分动态研究[J].环境科学学报,1992,12(2):174-181. |
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| 作者姓名： | 蔡思义 郑振华 陆华 杨虹 张金凤 |
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| 作者单位： | 农业部环境保护科研监测所 天津300191
(蔡思义，郑振华，陆华，杨虹)，农业部环境保护科研监测所 天津300191(张金凤) |
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| 摘 要： | 以天津东郊污灌区(慢速渗滤系统)为试验点,总结了土壤盐分的变化规律,并以粮地、菜地、稻地为代表分析了土壤中盐分变化动态,用污灌区土壤盐分动态平衡公式C_K-C_h=C_B-C_O测算,结果表明,只要灌区排水条件好,加上合理的科学灌溉,污灌区土壤盐分变化趋势是脱盐占主导地位,土壤中的钠吸附比(SAR)有所改善,土壤质量有所提高.
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| 关 键 词： | 污水灌溉 慢速渗滤系统 土壤盐分 |
| 收稿时间： | 1990/11/15 0:00:00 |
THE DYNAMICS OF SOIL SALINITY IN A SEWAGE IRRIGATION AREA |
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| Cai Siyi,Zheng Zhenhu,Lu Hu,Yang Hong and Zhang Jinfeng.THE DYNAMICS OF SOIL SALINITY IN A SEWAGE IRRIGATION AREA[J].Acta Scientiae Circumstantiae,1992,12(2):174-181. |
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| Authors: | Cai Siyi Zheng Zhenhu Lu Hu Yang Hong and Zhang Jinfeng |
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| Institution: | Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, 300191,Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, 300191,Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, 300191,Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, 300191 and Institute of Agro-Environmental Protection, Ministry of Agriculture, Tianjin, 300191 |
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| Abstract: | The study was carried out in east suburb at Tianjin during the
period of 1988-1989. The variation in a slow rate infiltration system of sewage irrigation area was summed up. Meanwhile, according to the results of analysis, the dynamic variations of soil salinity in crop field (corn-wheat), vegetable field (eggplant-chinese cabbage) and rice field, and the continuous monitoring, the dynamic balanced formula of soil salinity in sewage irrigation area is CK-Ch = CB-Co. The eventual result is: if the condition of drainage is good and irrigation is reasonable, the variation trends of soil salinity would be desalted. Moreover, the SAR of soil and the soil quality are improved. |
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| Keywords: | sewage irrigation slow rate system soil salinity sodium adsorption rate |
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