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生物炭和炭的应用影响土壤氨挥发和盐受影响的土壤中溶解的有机物质

Yaxin Ma¹, Wenping Xie², Rongjiang Yao²

¹Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

The Science of the total environment

|March 23, 2024

概括

在盐土中,碳水化合物 (HBC) 的高应用率增加了氨气挥发和溶解的有机物. 焦炭 (PBC) 和较低的HBC水平减少了氨的损失,影响了土壤生态系统.

科学领域:

土壤科学土壤科学
环境科学环境科学
农业学是一种农业学.

背景情况:

生物炭,包括火炭 (PBC) 和水炭 (HBC),用于改善盐土.
关于PBC和HBC对盐水土中氨挥发和溶解有机物 (DOM) 的影响的了解有限.

研究的目的:

研究沼泽衍生的PBC和HBC对 (NH3) 挥发和DOM在盐水土中的影响.
评估不同应用率 (0.5%和1.5% w/w) 对这些土壤特性的影响.

主要方法:

一个土壤柱实验是使用盐水土进行的.
使用PBC和HBC的比率分别为0.5%和1.5% (w/w).
测量了氨的挥发和溶解有机物 (DOM). 平行因子分析 (PARFAC) 模拟的DOM光.

主要成果:

一个1.5% (w/w) 的HBC应用显著增加了56.1%的NH3挥发.
PBC和0.5% (w/w) 的HBC降低了NH3挥发率 (2.4%12.1%).
洪水水的电导率 (EC) 被确定为NH3排放的关键因素. 较高的DOM光被观察到与1.5% (w/w) HBC.

结论:

高应用率的HBC可以加剧土壤NH3损失和DOM漏在盐的米土壤.
PBC和较低的HBC率显示了缓解NH3挥发的潜力.
这些发现为管理盐水田生态系统中的生物碳修正提供了关键的见解.

关键词:

氨的挥发是氨的挥发.生物炭是一种生物炭.溶解有机物 (DOM) 是一种有机物.炭化水化合物是一种碳化水化合物.盐水的土壤是盐水的土壤.

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