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生物炭的潜在迁移和残留成分:对黑土壤吸附性能和储存能力的影响

Ping Xue¹, Renjie Hou¹, Qiang Fu¹

¹School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China.

|June 21, 2023

概括

衰老的生物炭 (TB) 可以分解,释放影响土壤营养素的分量. 与原始或分解的生物炭相比,残留生物炭 (RB) 显示出优越的吸附和储存能力,改善了土壤营养调节.

科学领域:

土壤科学土壤科学
环境化学环境化学
材料科学材料科学材料科学

背景情况:

生物炭增强了土壤的营养储存,但老龄化导致分解和潜在的营养物质出.
了解生物炭分量的行为对于预测土壤营养动态至关重要.

研究的目的:

研究不同生物炭分量的吸附特性和迁移潜力.
在黑土中比较原始生物炭 (TB),分解生物炭 (DB) 和残留生物炭 (RB) 的性能.

主要方法:

超声波将生物炭分成DB和RB.
对元素组成和孔隙特征的分析.
在黑土中应用生物炭分量,并使用动力和异热吸附模型进行评估.
研究pH值和对吸附的共存离子效应.
评估出水的潜力.

主要成果:

剩余生物炭 (RB) 含有更高的O和H含量,并且比原始生物炭 (TB) 更芳香.
吸附能力按照以下顺序进行:SRB > SDB > STB > SCK.
剩余生物炭 (RB) 显示出最佳的吸附 (1.6741 mg g-1) 和储存能力,在pH梯度和共存离子的情况下表现出色.
分解生物炭 (DB) 显示,对土壤迁移的抑制有限.

结论:

剩余生物炭 (RB) 是对吸附和土壤保留最有效的分量.
生物炭分化对于了解其长期的土壤应用效应至关重要.
这些发现有助于优化生物炭利用,以改善土壤营养管理和减少损失.

关键词:

吸附方式吸附方式吸附方式生物炭是一种生物炭.是一种的物质.可能迁移的组件组件.剩余组件组件的剩余部分

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