| 杨永霞,董志多,赵玉鹏,冯耀祖,扁青永,付彦博,李鑫月.增氧灌溉对土壤环境和棉花苗期耐盐性的影响[J].农业环境科学学报,2025,44(10):2550-2559. |
| 增氧灌溉对土壤环境和棉花苗期耐盐性的影响 |
| Effects of aerated irrigation on soil environment and salt tolerance of cotton seedlings |
| 投稿时间：2024-11-05 |
| DOI：10.11654/jaes.2024-0958 |
| 中文关键词: 增氧滴灌 土壤盐渍化 棉花苗期 抗氧化酶 生理指标 土壤盐分 |
| 英文关键词: aeration drip irrigation soil salinization cotton seedling stage antioxidant enzymes physiological indexes soil salinity |
| 基金项目:新疆维吾尔自治区自然科学基金重点项目（2022D01D45）；国家自然科学基金地区项目（32260448）；国家自然科学基金地区项目（32260066）；农业基础性长期性科技工作观测监测任务（NAES098SQ37） |
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| 中文摘要: |
| 为研究不同盐胁迫条件下增氧灌溉对土壤环境及棉花苗期耐盐性的影响，设置两种灌溉方式（常规灌溉和增氧灌溉）、4个土壤盐分（0、0.3%、0.6%、0.9%）以及两种土壤质地（壤土和黏土），共计16个处理，每个处理3次重复，研究不同处理对棉花苗期土壤盐分、生理生长指标的影响，系统评估增氧灌溉在盐碱环境下对棉花耐盐性的调控效果。结果表明：增氧灌溉有效抑制了0~20 cm土层盐分积累，促进了土壤盐分向20~40 cm土层迁移。随着土壤盐分增加，增氧灌溉显著影响了两种土壤中的主要离子含量，且盐浓度、灌溉方式与土壤类型之间的交互作用在离子的动态变化中发挥了关键作用。增氧灌溉处理下壤土、黏土的干物质量分别增加了 12.40、18.37 mg，叶片中超氧化物歧化酶（SOD）和过氧化物酶（POD）活性平均分别增加了 23.70、40.98 U·L-1和31.44、28.82 mU·L-1，而丙二醛（MDA）含量分别下降了45.28、41.95 nmol·L-1。研究表明，增氧灌溉在盐渍化地区具有广泛的应用潜力。 |
| 英文摘要: |
| In order to study the effects of aeration irrigation on soil environment and salt tolerance of cotton seedlings under different salt stress conditions, two irrigation water oxygen concentrations（conventional irrigation and aeration irrigation）, four soil salinity gradients（0, 0.3%, 0.6%, 0.9%）and two soil textures（loam and clay）, a total of 16 treatments, each treatment was repeated 3 times, to study the effects of different treatments on soil salinity and physiological growth indexes of cotton seedlings, and to systematically evaluate the regulatory effect of aerated irrigation on cotton salt tolerance in saline-alkali environment. The results showed that aeration irrigation effectively inhibited the accumulation of soil salt in the 0-20 cm soil layer and promoted the migration of soil salt to the 20-40 cm soil layer. With the increase of soil salt concentration, aeration irrigation significantly affected the main ion content of the two soils, and the interaction between salt concentration, irrigation method and soil type played a key role in the dynamic change of ions. The dry matter mass of loam and clay increased by 12.40 mg and 18.37 mg, respectively. The superoxide dismutase（SOD）activity in leaves increased by an average of 23.70 U· L-1 and 40.98 U·L-1 in loam and clay soil, respectively. The peroxidase（POD）activity increased by an average of 31.44 mU·L-1 and 28.82 mU·L-1, respectively. In contrast the content of malondialdehyde（MDA）decreased by 45.28 nmol·L-1 and 41.95 nmol·L-1, respectively. Studies have shown that aerated irrigation has a wide range of application potential in salinized areas. |
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