在杂交作物系统下的受污染的土壤中,三种阿马兰太家族植物的植物修复和环境影响
Rong Huang1, Chen Xing1, Yuanru Yang1
1Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410221, China.
The Science of the total environment
|January 10, 2024
概括
交叉种植Amaranthus hypochondriacus和Celosia argentea显著增强了污染土壤中的植物提取. 这种农业战略促进了植物生物质和土壤微生物活动,以有效地改善土壤.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 植物疗法 (Phytoremediation) 是一种植物疗法.
背景情况:
- 杂交作物是一种常见的农业实践,但其对蓄电厂对重金属的植物提取的影响尚不清楚.
- 了解植物与土壤的相互作用对于优化污染环境中的植物修复策略至关重要.
研究的目的:
- 在单一作物和交叉作物系统下调查三种阿玛兰氏植物 (Amaranthus hypochondriacus,Celosia argentea和Pfaffia glomerata) 的植物提取效率.
- 评估杂交作物的对植物生物质,重金属吸收和土壤环境因素的影响.
主要方法:
- 实地实验比较了A. hypochondriacus,C. argentea和P. glomerata的单一作物和交叉作物的作物.
- 植物生物质的量化, (Cd) 的吸收,以及土壤特性分析,包括可交换金属,营养水平,微生物生物质和总有机碳 (TOC).
- 统计分析以确定土壤因素在重金属吸收中的作用.
主要成果:
- 间作物显著改变了生物量分布;A.hypochondriacus生物量减少,而C. argentea和P. glomerata生物量与单一作物相比增加.
- 插入A.hypochondriacus和C. argentea相比各自的单一栽培,Cd植物提取效率大幅增加361.2%和52.0%.
- 土壤因素,如可交换的Cd,Pb,Cu,Zn,K,P,N-NO3-,N-NH4+,TOC和微生物生物量 (包括状菌根真菌) 被交叉作物显著影响,并在金属吸收中发挥了关键作用.
结论:
- 插入A. hypochondriacus和C. argentea是一种高度有效的策略,可以增强污染土壤中的去除.
- 在交叉种植植物的根系球中观察到的土壤微生物生物质的增加表明植物修复的协同效益.
- 这种交叉作物模型显示了在田间范围内对污染土壤的修复有很大的潜力.
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