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| 宁夏银北灌区排水沟水的化学特征及其灌溉效应 | |
| 引用本文： | 王少丽,许 迪,杨建国,万树星. 宁夏银北灌区排水沟水的化学特征及其灌溉效应[J]. 水利学报, 2011, 42(2) |
| 作者姓名： | 王少丽 许 迪 杨建国 万树星 |
| 作者单位： | 1. 中国水利水电科学研究院水利研究所,北京,100048 2. 宁夏农林科学研究院农业资源与环境研究所,宁夏银川,750002 3. 宁夏水文水资源局,宁夏银川,750004 |
| 基金项目： | 国家“十一五”科技支撑计划(2006BAD11B06); 国家自然科学基金项目(51079162) |
| 摘 要： | 摘要：以宁夏银北灌区5个沟水利用点为例，分析评价排水沟水的化学特征、沟水灌溉的盐渍化风险及灌溉后的土壤环境效应。分析表明，暖泉农场排水沟水为重碳酸盐钠型水，其它均为氯化物钠型水。灌溉中后期排水沟水各项盐渍化指标明显小于灌溉初期，除前进农场外，沟水灌溉的盐渍化危害程度较轻。土壤中盐类主要成分为钠、钙的氯化物一硫酸盐；土壤质地对灌后的盐渍化有明显影响，质地较轻的沙壤土不易积盐；长期淹灌种植水稻，地下水位较高，为保持土壤性状良好，宜改为水旱轮作方式。采用与耐盐作物轮作、引山洪水冲洗及实行水旱轮作等，能 |
| 关 键 词： | 沟水灌溉；矿化度；盐渍化；化学特征 |
Chemical characteristics and its irrigation effect of drainage water in ditchesof Yinbei Irrigation Districts |
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| WANG Shao-li,XU Di,YANG Jian-guo and FANG Shu-xing. Chemical characteristics and its irrigation effect of drainage water in ditchesof Yinbei Irrigation Districts[J]. Journal of Hydraulic Engineering, 2011, 42(2) | |
| Authors: | WANG Shao-li XU Di YANG Jian-guo FANG Shu-xing |
| Affiliation: | WANG Shao-li1,XU Di1,YANG Jian-guo2,FANG Shu-xing3(1.China Institute of Water Resources and Hydropower Research,Beijing 100048,China,2.Institute of Agricultural Resources and Environment,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 750002,3.Hydrology bureau of Ningxia,Yinchuan 750004,China) |
| Abstract: | This paper analyzed the chemical characteristics of drainage water in ditches,saline-alkaline hazard and its impact of drainage reuse on soil in Yinbei irrigation districts,Ningxia.The result showed that the hydro-chemical type of drainage water is CNa at the Nuanquan Farm and ClNa at other four plots.Every alkaline index in drainage water was obviously smaller during the middle-late irrigation than those during the early irrigation.Except for the Qianjin Farm,the saline-alkaline hazard of drainage reuse fo... |
| Keywords: | Drainage reuse for irrigation Mineralization Saline-alkaline Chemical characteristics |
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