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在盐性土壤中,沿着大米种植时间序列的土壤质量和作物生产率的变化

Bangyan Zhang¹, Jinmin Wu², Xiaolong Bai²

¹College of Forestry and Pratacuture, Ningxia University, Yinchuan, Ningxia, 750021, China.

Journal of environmental management

|November 4, 2025

概括

长期的米种植通过改善土壤质量指数 (SQI) 和增加大米产量,有效地恢复了盐的土壤. 这种生物修复策略增强了土壤有机碳,并随着时间的推移降低了土壤的盐度.

科学领域:

农业科学农业科学
环境科学环境科学
土壤科学土壤科学

背景情况:

盐化耕地对农业生产力构成重大挑战,特别是在赫塔奥平原等地区.
米种植被公认为盐土壤的生物修复方法,但其对土壤质量和作物表现的长期影响尚未完全理解.
了解大米种植的时间序列对于优化其在盐水环境中的好处至关重要.

研究的目的:

为了研究大米种植时间序列对大米生长特征,土壤质量指数 (SQI) 和化土壤作物产量的影响.
阐明大米种植时间,土壤改善和提高农业生产率之间的协同机制.
评估长期米种植对土壤特性和大米质量的影响.

主要方法:

进行了一项时间序列实地实验,种植时间为1,3,5,8年和10年.
测量包括大米生长参数 (植物高度,茎厚度,SPAD,PN,Fv/Fm),土壤特性 (pH,TDS,ESP),SQI以及作物产量和质量.
部分最小正方形路径建模 (PLSPM) 用于分析土壤因素,SQI和大米产量/质量之间的关系.

主要成果:

米种植显著改善了土壤质量,降低了土壤pH值,总溶盐 (TDS) 和可交换百分比 (ESP),随着种植时间的增加.
土壤质量指数 (SQI) 随着耕作时间的延长而大幅增加,特别是在上层土壤层.
农作物产量和头米率显著增加,而石灰质量下降,表明在长期米种植下提高了米质量和生产力.

结论:

长期种植是一种有效的策略,用于恢复盐土壤,提高赫塔奥平原的农业生产力.
该研究表明,延长水种植,改善土壤质量,提高作物产量和质量之间存在正相关性.
土壤营养积累和盐分压力降低是改善SQI的关键驱动因素,这对米产量产生了积极的影响.

关键词:

农作物生产率农作物生产率增长的特征增长的特征种植大米的种植方式盐化是一种盐化过程.土壤质量指数土壤质量指数

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