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Updated: Jun 14, 2025

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生物炭的应用调节有机分数和农田土壤中可用的的释放

Xing Liu¹, Chenran Wu^1,2, Dongqi Jiang^1,3,4

¹Institute of applied Ecology, Chinese Academy of Sciences, Shenyang, China.

Journal of the science of food and agriculture

|September 5, 2024

概括

生物炭的应用对土壤 (P) 分数和酶活性在不同类型的土壤中产生不同的影响. 这项研究揭示了由土壤特性和P可用性影响的多种有机P循环机制.

科学领域:

土壤科学土壤科学
生物地质化学生物地质化学
环境化学环境化学

背景情况:

(P) 酶活性与有机P循环之间的相互作用尚未完全理解,特别是生物炭修正案.
现场实验的目的是研究这些关系在Phaeozem和Luvisol土壤.

研究的目的:

为了检查不同的生物炭应用率如何影响土壤有机P分数.
评估生物炭对土壤酸酶活动的影响.
阐明不同类型的土壤中生物炭对有机P循环的反应机制.

主要方法:

实地实验使用不同的生物炭应用速率 (0,22.5,67.5,112.5 t ha-1).
使用31P核磁共振 (NMR) 光谱分析土壤有机分数.
测量酸单酶 (AcP),性单酶 (AlP),无机酸酶 (IPP) 和聚酶 (PD) 的活性.
结构方程建模以确定营业额机制.

主要成果:

生物炭的应用通常会增加土壤有机碳 (SOC),酸盐 (pyro) 和正酸盐 (ortho) 含量.
在Phaeozem中观察到土壤有机P (OPa),无机P (IP),单和pH的增加,以及增强的AlP和PD活动.
卢维索尔显示出降低了体,聚酸盐 (聚) 含量,降低了IPP和AcP活动,而AcP和PD活动则呈相反的趋势.
土壤类型显著影响了P分数和酶活动对生物炭的反应.

结论:

生物炭的应用改变了土壤的P分数和酶活性,其影响因土壤类型而异 (Phaeozem与Luvisol).
该研究增强了对生物炭修订下有机P周转机制的理解.
这些发现与优化农业生产中的生物炭使用有关,特别是在中国东北部.

关键词:

31P 核磁共振光谱法核磁共振光谱法生物炭是一种生物炭.有机转化有机转化酸酶的活性活动.

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相关概念视频

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.