| 引用本文: | 曹萌豪,陈 林,庞丹波,等.宁夏压砂地种植年限对土壤代谢产物的影响[J].灌溉排水学报,0,():-. |
| caomenghao,chenlin,pangdanbo,et al.宁夏压砂地种植年限对土壤代谢产物的影响[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】为探讨压砂地连作对土壤代谢产物的影响，揭示压砂地土壤退化的机制。【方法】本研究以宁夏不同种植年限压砂瓜地土壤为研究对象，以未种植压砂瓜土壤为对照组（V），对连续种植3a（W）、7a（X）、15a（Y）和37a（Z）的压砂瓜土壤进行代谢物和代谢通路分析。【结果】V vs W组共检测到差异代谢物559种，其中428种上调，131种下调，V vs X组共检测出差异代谢物293种，其中215种上调，78种下调，V vs Y组共检测出差异代谢物730种，其中575种上调，155种下调，V vs Z组共检测出差异代谢物666种，其中479种上调，187种下调；随着种植年限的增加，糖类物质含量明显下降，有机酸含量在上升，改变了土壤环境，影响了植物的生长发育；另外KEGG代谢通路显示随着种植年限的增加土壤内的代谢活动减少，尤其是氨基酸的代谢，这直接影响到植物的正常生理活动。【结论】随着压砂地种植年限的增加，土壤中有机酸积累增加，糖类物质含量下降，导致了土壤退化，严重影响了作物的生长，多年压砂种植的土地已不适宜种植作物。 |
| 关键词: 压砂地;西瓜;种植年限;代谢通路;差异代谢物 |
| DOI： |
| 分类号:A |
| 基金项目:宁夏农林科学院农业高质量发展和生态保护科技创新示范项目(NGSB-2021-16)；宁夏自然科学(2020AAC03105)；国家自然科学(31960359)；宁夏重点研发计划项目(2021BEG02005)；第三批宁夏青年科技人才托举工程项目(TJGC2018068)。 |
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| LC-MS Analysis of Soil Chemical Components in Compacted Sandy Land with Different PlantingYears in Ningxia |
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caomenghao, chenlin, pangdanbo, hewenqiang, majinpeng, wanhongyun, zhangyaqi
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College of Ecological Environment, Ningxia University
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| Abstract: |
| 【Objective】 In order to investigate the effect of continuous cropping in pressed sand on soil metabolites and to reveal the mechanism of soil degradation in pressed sandland. 【Methods】 In this study, the soil of pressed sand melon with different planting years in Ningxia was taken as the research object, and the soil without pressed sand melon was used as the control group (V) to analyze metabolites and metabolic pathways in the soil of pressed sand melon continuously planted with 3a(W), 7a(X), 15a(Y) and 37a(Z). 【Results】 A total of 559 different metabolites were detected in V vs W group, of which 428 were up-regulated and 131 were down-regulated, 293 different metabolites were detected in V vs X group, of which 215 were up-regulated and 78 were down-regulated, 730 different metabolites were detected in V vs Y group, of which 575 were up-regulated and 155 were down-regulated, and 666 different metabolites were detected in V vs Z group, of which 479 were up-regulated and 187 were down-regulated. With the increase of planting years, the content of carbohydrates decreased significantly, and the content of organic acids increased, which changed the soil environment and affected the growth and development of plants. In addition, the KEGG metabolic pathway shows that the metabolic activity in the soil decreases with the increase of planting years, especially the metabolism of amino acids, which directly affects the normal physiological activities of plants. 【Conclusion】 With the increase of planting life in pressed sand, the accumulation of organic acids in the soil increases, and the content of carbohydrates decreases, which leads to soil degradation and seriously affects the growth of crops. |
| Key words: Sand-pressed land; Watermelon; Planting years; Metabolic pathways; Differential metabolites |
