生物炭对垃圾填埋场土壤中植物和微生物群落的影响

IF 4.8 2区农林科学 Q1 SOIL SCIENCE

Applied Soil Ecology Pub Date : 2024-11-20 DOI:10.1016/j.apsoil.2024.105749

Jiaxin Liao , Guangcun Hao , Haowen Guo , Hongqi CHEN

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引用次数: 0

摘要

由于不利的土壤条件，垃圾填埋场的生态恢复面临着巨大挑战。我们开展了一项为期三个月的实地研究，以评估生物炭对垃圾填埋场覆盖层中植物演替和细菌群落的影响。覆盖层的表层土壤分别添加了 0%、5% 和 10%（v/v）的花生壳生物炭。测量结果表明，加入生物炭后，土壤的 pH 值、营养成分和有机物含量提高了 2 倍，促进了植物的生长。在添加生物炭的情况下，细菌的丰富度和多样性得到了提高，微生物群落的异质性也增加了。然而，在生物炭改良的土壤中，植物多样性降低，域内植物物种发生了变化。生物炭的应用通过提高土壤化学性质加强了真菌群落与香附之间的相互作用。这项研究证明了生物炭对土壤-植物-微生物相互作用的影响，可用于指导垃圾填埋场覆盖层的生态修复。

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Effects of biochar on plant and microbial communities in landfill soil

Ecological restoration in landfills encounters a significant challenge attributed to unfavourable soil conditions. A three-month field study was conducted to evaluate biochar effects on plant succession and bacterial community in a landfill cover. The topsoil of the cover was amended with 0, 5, and 10 % (v/v) peanut shell biochar. According to the measured results, adding biochar improves the soil pH, nutrition content, and organic matter up to 2 times, promoting plant growth. Bacterial richness and diversity were enhanced, and the heterogeneity of microbial communities was increased in biochar-amended cases. However, the plant diversity was reduced, and the domain plant species changed in biochar-amended soil. Biochar application strengthens the interaction between fungal communities and Cyperus rotundus L. by enhancing soil chemical properties. This study demonstrates biochar effects on soil-plant-microbe interactions for guiding the ecological restoration of landfill covers.

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来源期刊

Applied Soil Ecology 农林科学-土壤科学

CiteScore

9.70

自引率

4.20%

发文量

363

审稿时长

5.3 months

期刊介绍： Applied Soil Ecology addresses the role of soil organisms and their interactions in relation to: sustainability and productivity, nutrient cycling and other soil processes, the maintenance of soil functions, the impact of human activities on soil ecosystems and bio(techno)logical control of soil-inhabiting pests, diseases and weeds.