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Abstract <p>Suburban forests play a crucial role in maintaining the ecosystem functions and the biogeochemical cycling of elements within urban landscapes. The input of carbon and nitrogen with litterfall, their accumulation in forest litter and soils of suburban forests of Voronezh were assessed. The study was performed in the old-growth pine and oak forests. It was found that twice as much carbon (12.70 t/ha) and five times more nitrogen (0.35 t/ha) were supplied in oak forests than in pine forests (6.48 t C/ha and 0.06 t N/ha) during the summer–autumn season. Nevertheless, element stocks in forest litter were the highest in pine forests, reaching 13.70 t C/ha and 0.35 t N/ha, due to the low decomposition rate of coniferous litter. Finally, the total soil carbon stocks in the one-meter column of Gleyic Phaeozems (Arenic) of oak forests (118.2 t/ha) were significantly higher than in Someric Phaeozems (Arenic) of pine forests (65.6 t/ha). Comparative analysis revealed that the primary cause of these differences in forest soils was related to the litterfall quality and its decomposition rate across different forest types. The results highlight the leading role of forest vegetation in soil formation and carbon storage in forest soils in the urban landscape.</p>

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Carbon and Nitrogen Inputs from Litterfall to the Soils of Suburban Forests of Voronezh City

  • 期刊论文

  • 发表日期：

    2025年4月30日

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  • S. S. Sheshnitsan,
  • I. V. Golyadkina,
  • T. L. Sheshnitsan,
  • E. N. Tikhonova,
  • N. S. Gorbunova,
  • A. A. Safonova

摘要

Abstract

Suburban forests play a crucial role in maintaining the ecosystem functions and the biogeochemical cycling of elements within urban landscapes. The input of carbon and nitrogen with litterfall, their accumulation in forest litter and soils of suburban forests of Voronezh were assessed. The study was performed in the old-growth pine and oak forests. It was found that twice as much carbon (12.70 t/ha) and five times more nitrogen (0.35 t/ha) were supplied in oak forests than in pine forests (6.48 t C/ha and 0.06 t N/ha) during the summer–autumn season. Nevertheless, element stocks in forest litter were the highest in pine forests, reaching 13.70 t C/ha and 0.35 t N/ha, due to the low decomposition rate of coniferous litter. Finally, the total soil carbon stocks in the one-meter column of Gleyic Phaeozems (Arenic) of oak forests (118.2 t/ha) were significantly higher than in Someric Phaeozems (Arenic) of pine forests (65.6 t/ha). Comparative analysis revealed that the primary cause of these differences in forest soils was related to the litterfall quality and its decomposition rate across different forest types. The results highlight the leading role of forest vegetation in soil formation and carbon storage in forest soils in the urban landscape.