ould more efficient utilization of ecosystem services improve soil quality indicators to allow sustainable intensification of Amazonian family farming

Autor(es)

de Moura, Emanoel G. ^[1] ; de Sousa, Rafael M. ^[1] ; Campos, Lorena S. ^[1] ; Cardoso-Silva, Anagila J. ^[2] ; Mooney, Sacha J. ^[3] ; Aguiar, Alana das C. F. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Maranhao, Agroecol Program, BR-65054970 Sao Luis, Maranhao - Brazil

^[2] Univ Fed Maranhao, Biol Dept, Portugueses Ave 1966, BR-65080805 Sao Luis, Maranhao - Brazil

^[3] Univ Nottingham, Sch Biosci, Div Agr & Environm Sci, Sutton Bonington Campus, Loughborough LE12 5RD, Leics - England

• Tipo de documento: Artigo Científico
• Fonte: ECOLOGICAL INDICATORS; v. 127, AUG 2021.
• Citações Web of Science: 0

Resumo

In the Amazonian periphery, there are sources of numerous disservices, including deforestation, loss of wildlife habitat and biodiversity erosion. However, there are great opportunities to adopt appropriate agricultural management practices to take advantage of the benefits of ecosystem services for sustainable agricultural intensification. Thus, the aim of this work was to evaluate the effects of certain ecosystem services provided by combined use of legumes with residue of low- and high-quality on soil quality indicators, nitrogen use efficiency and sustainability of maize grain yield in infertile tropical soil. The overarching objective is to determine how ecosystem services can contribute to the improvement of land-use policy to ensure the sustainability of cultivated lands, in such a way that forest can be preserved by avoiding deforestation of other new areas through shifting cultivation systems. Four leguminous tree species were used, two with high-quality residues Leucaena leucocephala (leucaena) and Gliricidia sepium (gliricidia) and two with low-quality residues Clitoria fairchildiana (clitoria) and Acacia mangium (acacia). Maize grain yield was evaluated between 2011 and 2017 in these treatments. In 2018, to assess how ecosystem services affect crop performance, the treatments were divided into ten treatments with and without urea. We conclude that increased uptake of inorganic and organic N by maize resulting from improvement of the soil quality indicators may allow agricultural intensification. This improvement can help meet the challenges of sustainability and feasibility of agroecosystems of the Amazonian periphery by making the agroecosystem more productive year by year. Therefore, our results confirm that the utilization of an ecosystem services style approach can help meet the challenges of sustainability and feasibility in agrosystems of the Amazonian periphery. In addition, these results can contribute to the development of land-use policy in the Amazonian periphery, aiming for the intensification of agriculture in cropped areas to avoid deforestation of new areas from shifting cultivation systems. (AU)

• Processo FAPESP: 15/50305-8 - A virtual joint centre to deliver enhanced nitrogen use efficiency via an integrated soil-plant systems approach for the UK & Brazil
• Beneficiário: Ciro Antonio Rosolem
• Modalidade de apoio: Auxílio à Pesquisa - Temático