| 引用本文: | 赵守强,宋纪斌,刘春成,等.再生水灌溉引发土壤次生盐渍化的研究进展[J].灌溉排水学报,2024,43(2):47-53. |
| ZHAO Shouqiang,SONG Jibin,LIU Chuncheng,et al.再生水灌溉引发土壤次生盐渍化的研究进展[J].灌溉排水学报,2024,43(2):47-53. |
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| 摘要: |
| 中国水资源供需矛盾突出，在农业用水上尤为严重，合理利用再生水灌溉对于缓解我国农业用水紧张具有重要的现实意义。然而，再生水中含有盐分，存在引发土壤次生盐渍化的潜在风险。本文以国内外再生水灌溉相关文献为基础，从灌溉方式、土壤类型、作物种植、灌溉年限及其他处理模式共5个方面对再生水灌溉引发土壤次生盐渍化的风险进行分析与总结。研究认为，长期再生水灌溉下引发土壤次生盐渍化的研究不足，缺乏交互因子的影响研究，系统化不强，改良再生水措施对土壤次生盐渍化研究相对较少。研究建议，加强开展长期再生水灌溉下灌溉方式、土壤类型、作物种植、农艺措施等方面结合对土壤次生盐渍化影响的大田试验研究；还要加强改良再生水灌溉对引发土壤次生盐渍化风险调控等方面的研究。 |
| 关键词: 再生水；灌溉；次生盐渍化；影响因素 |
| DOI：10.13522/j.cnki.ggps.2023065 |
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| A review on secondary soil salinization caused by reclaimed water irrigation |
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ZHAO Shouqiang, SONG Jibin, LIU Chuncheng,
LI Xiaotong, LIU Yuan, HUANG Pengfei, LI Zhongyang
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1. Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China;
2. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China;
3. National Research and Observation Station of Shangqiu Agro-ecology System, Shangqiu 476000, China
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| Abstract: |
| Water scarcity is a major challenge facing agricultural production in China. Unconventional water resources such as reclaimed wastewater can be used as a complimentary resource for irrigation. However, reclaimed wastewater is rich in salt and its long-term use for irrigation could lead to secondary soil salinization. In this review, we analyze the factors that have potential effects on accumulation of salt in soil. They include irrigation method, soil texture, crop types and crop variety, irrigation time, and reclaimed wastewater modification. Results show that our current understanding of the effect of long-term reclaimed water irrigation on soil salt accumulation is still unclear. As a result, more systematic studies are needed to elucidate the main factors that affect salt accumulation in soil. While reclaimed water modification is promising, more studies are required before it can be widely implemented. We suggest that future research on reclaimed water irrigation should focus on field experiments to systematically study how irrigation method, soil texture, crops, agronomic management and reclaimed water modification interactively affect salt accumulation in soils irrigated with reclaimed wastewater. |
| Key words: reclaimed water; irrigation; secondary salinization; influence factor |
