Monocultures negatively influence ecosystem services provided by roots, plant litter and soil C stocks in subtropical riparian zones

Cristhian dos Santos Teixeira (), Marcelo Malysz, Samir Savanciski, Ana Luisa Gayger, Ághata Comparin Artusi, Heliur Alves de Almeida Delevatti, Vanderlei Secretti Decian, Cláudia Petry, Cimélio Bayer and Tanise Luisa Sausen
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Cristhian dos Santos Teixeira: Universidade de Passo Fundo
Marcelo Malysz: Universidade Regional Integrada do Alto Uruguai E das Missões
Samir Savanciski: Universidade Regional Integrada do Alto Uruguai E das Missões
Ana Luisa Gayger: Universidade de Passo Fundo
Ághata Comparin Artusi: Instituto de Pesquisas Ecológicas
Heliur Alves de Almeida Delevatti: Instituto de Biologia, Universidade de Campinas
Vanderlei Secretti Decian: Universidade Regional Integrada do Alto Uruguai E das Missões
Cláudia Petry: Universidade de Passo Fundo
Cimélio Bayer: Universidade Federal do Estado do Rio Grande do Sul
Tanise Luisa Sausen: Universidade Regional Integrada do Alto Uruguai E das Missões

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2024, vol. 26, issue 6, No 43, 14729-14742

Abstract: Abstract Anthropogenic disturbances associated with land use and land cover changes negatively influence soil organic C, reducing ecosystem functionality. These adverse effects may be even more pronounced in Brazilian subtropical riparian zones due to recent changes in environmental legislation that reduced the size of these protected areas in small scale farms. This study evaluated how different land uses in riparian zones influence ecosystem services related to soil, litter, and roots C and N stocks. The field experiment was carried out in a drainage area with four land uses and cover: forest fragment (FF), plantation forest (PF), pasture (PA), and agriculture (AG). Soil, root, and litter C and N stocks were analyzed. Monocultures (PF, PA, and AG) had lower soil C and N stocks than FF. The FF and PF did not differ in litter and root C content, but FF had higher N values. Differences in the quality of plant residues were associated with a lower soil C: N ratio in FF. The lowest soil C and N stocks were observed in AG sites, and the conversion from AG to PF and PA seems to increase soil C and N stocks. Our findings indicate that, even in small forest patches, the higher quality of organic residues drives soil C and N storage, highlighting the negative effects of vegetation replacement to monocultures in riparian zones. Hence, the maintenance of riparian forests is essential for providing ecosystem services related to soil C and N cycling.

Keywords: Land use and cover; Organic residues; Soil organic carbon; C: N ratio (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10668-023-03214-z

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