草地学报

碳输入与氮添加对草地生态系统丛枝菌根真菌影响的研究进展

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草地学报 | 专论与进展 2026,34(9): 3141-3151

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草地学报 |专论与进展 2026 , 34 (9) : 3141 -3151

碳输入与氮添加对草地生态系统丛枝菌根真菌影响的研究进展

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刘思彤^1,2, 高英志²

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刘思彤(1996-),女,满族,吉林长春人,博士,主要从事草地生态学方向研究,E-mail:liust@gzhu.edu.cn

Research Progress on the Effects of Carbon Inputs and Nitrogen Addition on Arbuscular Mycorrhizal Fungi in Grassland Ecosystems

LIU Si-tong^1,2, GAO Ying-zhi²

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doi: 10.11733/j.issn.1007-0435.2026.09.001

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丛枝菌根真菌（AMF）是草地植物获取养分、维持土壤结构的关键共生微生物。本文从碳输入类型、氮添加及其交互作用的角度，总结了草地AMF在定殖、菌丝生长、群落组成和共生网络等方面的研究进展。大气CO₂富集主要通过增加植物地下碳分配促进AMF菌丝生长和生物量积累；生物炭和有机肥能改善土壤孔隙结构与养分保持条件，提升AMF定殖和群落恢复能力；可溶性碳输入的效果则受植物功能群及氮磷供给的共同调节。长期或高强度氮添加通常抑制AMF，这与土壤酸化、植物菌根碳投入减少及群落重组密切相关。碳氮交互作用受碳源类型、氮遗留效应和土壤有效养分供给制约。因此，未来需加强碳输入类型可比性研究，明确碳源、施氮强度与持续时间共同调控AMF响应的边界条件，为草地土壤养分调控和退化草地恢复提供科学参考。

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丛枝菌根真菌 / 草地生态系统 / 碳输入 / 氮添加 / 菌根共生

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Arbuscular mycorrhizal fungi （AMF） are key symbiotic microorganisms that support nutrient acquisition by grassland plants and contribute to soil structure maintenance. This review synthesizes current progress on how different forms of carbon input， nitrogen addition， and their interactions influence AMF in grassland ecosystems， focusing on colonization， hyphal growth， community composition， and symbiotic network structure. Elevated atmospheric CO₂ mainly promotes AMF hyphal growth and biomass accumulation by increasing belowground carbon allocation in plants. Biochar application and organic fertilizer addition improve soil physical properties and nutrient retention， thereby facilitating AMF colonization and community recovery. In contrast， the effects of soluble organic carbon inputs are moderated by plant functional group identity and nitrogen-phosphorus availability. Long‑term or high‑intensity nitrogen addition generally suppresses AMF， a response closely associated with soil acidification， reduced carbon allocation to mycorrhizae， and reorganization of AMF communities. The interactive effects of carbon inputs and nitrogen addition are constrained by carbon source characteristics， nitrogen legacy effects， and the availability of soil nutrients. Future research should increase the comparability of carbon input studies， clarify the combined regulatory roles of carbon source， nitrogen addition intensity and duration on AMF responses， and provide theoretical support for soil nutrient management and degraded grassland restoration.

Key words

Arbuscular mycorrhizal fungi / Grassland ecosystem / Carbon input / Nitrogen addition / Mycorrhizal symbiosis

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刘思彤, 高英志. 碳输入与氮添加对草地生态系统丛枝菌根真菌影响的研究进展. 草地学报, 2026 , 34 (9) : 3141 -3151 . DOI: 10.11733/j.issn.1007-0435.2026.09.001

LIU Si-tong, GAO Ying-zhi. Research Progress on the Effects of Carbon Inputs and Nitrogen Addition on Arbuscular Mycorrhizal Fungi in Grassland Ecosystems[J]. Acta Agrestia Sinica, 2026 , 34 (9) : 3141 -3151 . DOI: 10.11733/j.issn.1007-0435.2026.09.001

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中央引导地方科技发展资金 (ZYYD2025QY07)

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2026年第34卷第9期

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doi: 10.11733/j.issn.1007-0435.2026.09.001

接收时间：2026-01-07
首发时间：2026-09-23

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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