不同生物炭添加量对草甸土壤碳氮含量及细菌群落变化的影响

IF 3.6 4区环境科学与生态学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Environmental Pollutants and Bioavailability Pub Date : 2023-10-16 DOI:10.1080/26395940.2023.2268272

Pingnan Zhao, Xiaoyuan Gao, Dong Liu, Yuxuan Sun, Ming Li, Song Han

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引用次数: 0

摘要

草甸土是重要的农业土壤类型之一，生物炭是一种很好的土壤改良剂，但生物炭添加对草甸土碳氮含量及细菌群落的影响研究较少。通过为期一年的室内培养试验，研究了1种氮添加率(不添加、0.2%添加)和2种生物炭添加模式(不添加、1%添加、3%添加)对草甸土壤碳氮含量及细菌群落的影响。生物炭的添加增加了变形菌门、绿菌门和拟杆菌门的相对丰度。生物炭与氮源的组合显著提高了草甸土壤的总有机碳、铵态氮、硝态氮和全氮含量。因此，在草甸土壤中添加适量的生物炭可以作为土壤改良的一种形式，有助于可持续生态农业。

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Effect of different biochar additions on the change of carbon nitrogen content and bacterial community in meadow soils

Meadow soils are one of the important agricultural soil types, biochar is a good soil amendment, whereas the studies on the effects of biochar additions on carbon and nitrogen contents, as well as bacterial communities of meadow soils, were seldom carried out. The effects of one nitrogen addition rates (no addition, 0.2% addition) and two biochar addition patterns (no addition, 1% addition, 3% addition) on the carbon and nitrogen contents, as well as bacterial communities of meadow soils, were investigated by conducting a one-year indoor incubation experiment. Biochar addition increased the relative abundance of Proteobacteria, Chloroflexi and Bacteroidota. The combination of biochar and nitrogen source significantly increased the total organic carbon, ammonium nitrogen, nitrate nitrogen and total nitrogen content of the meadow soil. Therefore, the addition of moderate amounts of biochar to meadow soils can contribute to sustainable ecological agriculture as a form of soil improvement.

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来源期刊

Environmental Pollutants and Bioavailability Chemical Engineering-Chemical Health and Safety

CiteScore

4.30

自引率

3.00%

发文量

审稿时长

13 weeks

期刊介绍： Environmental Pollutants & Bioavailability is a peer-reviewed open access forum for insights on the chemical aspects of pollutants in the environment and biota, and their impacts on the uptake of the substances by living organisms. Topics include the occurrence, distribution, transport, transformation, transfer, fate, and effects of environmental pollutants, as well as their impact on living organisms. Substances of interests include heavy metals, persistent organic pollutants, and emerging contaminants, such as engineered nanomaterials, as well as pharmaceuticals and personal-care products as pollutants.