研究论文
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
污水灌区土壤盐分动态研究
- THE DYNAMICS OF SOIL SALINITY IN A SEWAGE IRRIGATION AREA
- 基金项目：
- 作者
- 单位
- 蔡思义
- 农业部环境保护科研监测所, 天津 300191
- 郑振华
- 农业部环境保护科研监测所, 天津 300191
- 陆华
- 农业部环境保护科研监测所, 天津 300191
- 杨虹
- 农业部环境保护科研监测所, 天津 300191
- 张金凤
- 农业部环境保护科研监测所, 天津 300191
- 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CK-Ch=CB-CO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.
- Abstract：The study was carried out in east suburb at Tianjin during theperiod 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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