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Article

Nitrogen Addition Effects on Wetland Soils Depend on Environmental Factors and Nitrogen Addition Methods: A Meta-Analysis

1
State Environmental Protection Key Laboratory for Wetland Conservation and Vegetation Restoration & Jilin Provincial Key Laboratory of Ecological Restoration and Ecosystem Management & Key Laboratory of Vegetation Ecology of Ministry of Education, School of Environment, Northeast Normal University, Changchun 130117, China
2
Heilongjiang Xingkai Lake Wetland Ecosystem National Observation and Research Station & Key Laboratory of Wetland Ecology and Environment & Jilin Provincial Joint Key Laboratory of Changbai Mountain Wetland and Ecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
*
Author to whom correspondence should be addressed.
Academic Editor: Abasiofiok Mark Ibekwe
Water 2022, 14(11), 1748; https://doi.org/10.3390/w14111748
Received: 12 May 2022 / Revised: 26 May 2022 / Accepted: 27 May 2022 / Published: 29 May 2022
(This article belongs to the Special Issue Coupled Ecohydrological and Biogeochemical Processes in Wetlands)
Identifying the effects of nitrogen (N) addition under key environmental factors and N addition methods can aid in understanding the paradigm of N addition in wetland ecosystems. In this study, we conducted a meta-analysis of 30 field studies of wetland ecosystems and selected 14 indicators. We found that the changes in soil TN and SOC contributed significantly to the changes in microbial community structure under N additions. The environmental factors and N addition methods altered the direction or size of N addition effects on wetland soil properties, microbial diversity and key C and N cycling genes. N-limited conditions and climate conditions determined the N addition effect direction on SOC, and saline-alkali conditions determined the N addition effect direction on microbial diversity and AOB abundance. Environmental heterogeneity and N addition methods determine the response of wetland soil to nitrogen application. Therefore, it is crucial to study the effects of environmental factors and N addition methods on the N deposition of wetland soils. View Full-Text
Keywords: nitrogen addition; meta-analysis; wetlands; soil microbial diversity; functional genes nitrogen addition; meta-analysis; wetlands; soil microbial diversity; functional genes
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MDPI and ACS Style

Yin, Z.; Yu, X.; Zou, Y.; Ding, S.; Zhang, J. Nitrogen Addition Effects on Wetland Soils Depend on Environmental Factors and Nitrogen Addition Methods: A Meta-Analysis. Water 2022, 14, 1748. https://doi.org/10.3390/w14111748

AMA Style

Yin Z, Yu X, Zou Y, Ding S, Zhang J. Nitrogen Addition Effects on Wetland Soils Depend on Environmental Factors and Nitrogen Addition Methods: A Meta-Analysis. Water. 2022; 14(11):1748. https://doi.org/10.3390/w14111748

Chicago/Turabian Style

Yin, Zeyao, Xiaofei Yu, Yuanchun Zou, Shanshan Ding, and Jingyao Zhang. 2022. "Nitrogen Addition Effects on Wetland Soils Depend on Environmental Factors and Nitrogen Addition Methods: A Meta-Analysis" Water 14, no. 11: 1748. https://doi.org/10.3390/w14111748

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