功能性状驱动湿地植物对反硝化的促进作用

doi:10.1093/jpe/rtag023

Journal of Plant Ecology ›› 2026, Vol. 19 ›› Issue (4): 0-.DOI: 10.1093/jpe/rtag023

• • 下一篇

功能性状驱动湿地植物对反硝化的促进作用

收稿日期:2025-05-07 修回日期:2025-08-30 接受日期:2026-02-04 出版日期:2026-08-01 发布日期:2026-09-21

Functional traits explain the enhancement of denitrification by wetland plants

Yingji Pan^{1, 2, *†}, Lars Lønsmann Iversen^{3, †} and Peter M. van Bodegom²

1.Key Laboratory of Black Soils Conservation and Utilization, Key Laboratory of Wetland Ecology, Key Laboratory of Marsh Wetland Ecosystem Conservation and Restoration, National Forestry and Grassland Administration, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
2.Institute of Environmental Sciences (CML), Leiden University, Leiden 2333 CC, The Netherlands;
3.Department of Biology, McGill University, Montréal H3A 1B1, Québec, Canada
^*Corresponding author.E-mail:panyingji@iga.ac.cn
^†These authors contributed equally to this work.

Received:2025-05-07 Revised:2025-08-30 Accepted:2026-02-04 Online:2026-08-01 Published:2026-09-21
Supported by:
The establishment of the wetland trait database was first discussed and started in 2008 at the Vegfunction WG39, which was funded by the ARC-NZ Research Network for Vegetation Function. We would like to thank all additional contributors to this original workshop, including Paul Adam (U New South Wales, Sydney, AU), Margaret Brock (U New England, Armidale, USA), George Ganf (U Adelaide, Adelaide, AU), Irving A. Mendelssohn (Louisiana State U, Baton Rouge, USA), Eliska Rejma?nkova (U California, Davis, USA), Brian Sorrell (Aarhus U, Aarhus, DK), and Evan Weiher (U Wisconsin, Eau Claire, USA). We are grateful to the Editor and anonymous referees for providing valuable comments.

摘要/Abstract

摘要： <strong>摘要</strong> ：反硝化作用是湿地最为重要的生态功能之一，影响着养分循环、水质净化以及全球氮平衡。然而，由于“植物-微生物-基质”之间复杂的交互作用，湿地植物对于反硝化的影响仍不清楚。基于整合分析、全球湿地植物功能性状数据库和结构方程模型，本研究评估了25种湿地植物功能性状对反硝化的影响。结果显示，湿地植物直接和间接作用都对反硝化具有重要贡献。具体而言，湿地植物根系性状调控基质氧含量，从而通过氧气的抑制效应减弱反硝化作用；植物氮状况通过叶片及根系分泌物的有机氮输入促进反硝化作用；植物根系生物量通过与反硝化细菌竞争氮源，直接减弱反硝化作用。上述结果为研究植物性状对反硝化的影响提供了一个系统性视角，有助于更加深入理解植物对湿地生态系统功能的影响，并对反硝化作用的生态工程和生态管理提供实践启示。

关键词: 反硝化作用, 生态系统功能, 生态过程与途径, 植物功能性状, 植物-土壤(地下)互作, 结构方程模型, 基于功能性状的方法

Abstract: Denitrification is one of the most important ecosystem functions in wetland ecosystems, affecting nutrient cycling, water purification and the global nitrogen budget. However, the effects of wetland plants on denitrification remain unclear because of the complex plant-microbe-substrate interactions involved. In this study, we evaluated the effects of 25 wetland plant species traits on denitrification based on data from meta-analyses on denitrification, global wetland plant trait databases and structural equation modelling. We used plant functional traits as an indicator to quantitatively model the multifaceted ecological processes controlling denitrification as well as the overall denitrification enhancement by wetland plants. Our results revealed that both direct and indirect (i.e. the effect of one variable on another is mediated by a third variable) pathways strongly contribute to the overall enhancement of denitrification by wetland plants. Specifically, wetland plant root traits jointly controlled substrate oxygen availability, which reduced the enhancement of denitrification by wetland plants through oxygen inhibition effects. Plant nitrogen status facilitated denitrification enhancement probably through organic nitrogen input by plant leaves and root exudates. Root biomass directly decreased denitrification enhancement through competition for nitrogen uptake with denitrifying bacteria. Our results provide a systematic view of the effect of wetland plant traits on denitrification enhancement. The application of plant functional traits in revealing the complex denitrification processes helps us to better understand the impacts of plants on wetland ecosystem functioning and inspire new practices in ecological engineering and ecological management on denitrification through a trait-based perspective.

Key words: denitrification, ecosystem functioning, ecological processes and pathways, plant functional traits, plant-soil (below-ground) interactions, structural equation model (SEM), trait-based approaches

. 功能性状驱动湿地植物对反硝化的促进作用[J]. Journal of Plant Ecology, 2026, 19(4): 0-.

Yingji Pan, Lars Lønsmann Iversen, Peter M van Bodegom. Functional traits explain the enhancement of denitrification by wetland plants[J]. J Plant Ecol, 2026, 19(4): 0-.

[1]	. 树木多样性通过构型性状变异促进树冠互补性和冠层装配[J]. Journal of Plant Ecology, 2026, 19(4): 0-.
[2]	. 植物功能性状：理解与修复湿地生态系统结构和功能的关键[J]. Journal of Plant Ecology, 2026, 19(4): 1-.
[3]	. 入侵性本地植物重塑亚高山草甸植物-丛枝菌根真菌网络[J]. Journal of Plant Ecology, 2026, 19(3): 1-.
[4]	. 冠层与林下层结构多样性对温带森林生产力的相反调节作用[J]. Journal of Plant Ecology, 2026, 19(3): 1-.
[5]	. 海拔梯度调控草本植物入侵对牛皮杜鹃长期生长和气候敏感性的影响[J]. Journal of Plant Ecology, 2026, 19(2): 1-.
[6]	. 草原生态系统中慢生长策略植物对极端干旱的抵抗力更强[J]. Journal of Plant Ecology, 2026, 19(2): 1-.
[7]	. 非生物与生物因子共同影响中国莎草湿地地上生物量[J]. Journal of Plant Ecology, 2026, 19(1): 1-.
[8]	. 亚热带人工林叶片养分性状通过土壤养分与微生物群落调节土壤碳稳定性[J]. Journal of Plant Ecology, 2026, 19(1): 1-.
[9]	. 干扰驱动的湿地土壤特性、植物功能性状与生物多样性变化[J]. Journal of Plant Ecology, 2026, 19(1): 1-.
[10]	. 植物多样性驱动温带草原生态系统多功能性对放牧强度的响应[J]. Journal of Plant Ecology, 2025, 18(6): 1-40.
[11]	. 生态指标预测植物功能多样性对冰川退缩的响应特征[J]. Journal of Plant Ecology, 2025, 18(6): 1-37.
[12]	. 树木结构多样性塑造亚热带森林生物量的海拔梯度格局[J]. Journal of Plant Ecology, 2025, 18(6): 1-.
[13]	. 第三极草本植物生长与生长季长度之间的权衡关系[J]. Journal of Plant Ecology, 2025, 18(4): 1-11.
[14]	. 土壤养分通过植物功能性状驱动退化梯度上湿地生产力的空间变异性[J]. Journal of Plant Ecology, 2025, 18(2): 1-15.
[15]	. 温带森林地上生物量储量主要受林冠属性的调控[J]. Journal of Plant Ecology, 2025, 18(2): 1-14.

功能性状驱动湿地植物对反硝化的促进作用

Functional traits explain the enhancement of denitrification by wetland plants

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价