Carbon and nitrogen dynamics in a successional agroforestry system in the Neotropics
DOI:
https://doi.org/10.20873/jbb.uft.cemaf.v9n2.nardotoPalabras clave:
carbon stable isotopes, foliar nitrogen resorption, litter decomposition, nitrogen stable isotopes, soil nitrous oxide emissionResumen
The present study aimed to assess the effect of fourteen years of implementation of a successional and biodiverse agroforestry system (AFS) in a degraded agricultural field located in the Cerrado region of Central Brazil on the carbon and nitrogen dynamics. To track short term soil N dynamics we sampled instantaneous soil N rates in four seasonal periods (wet-dry, dry, dry-wet, wet) and to track long term C and N dynamics we measured C and N stable isotopes in the plant-litter-soil system. As additional data we determined the aboveground biomass; resorption rates of foliar and, soil C and N stocks. The measured aboveground biomass was 19.2 Mg C ha-1. The mean resorption rate of foliar N was 49.3%. C:N ratio was 20.4 ± 1.4 and 14.2 ± 0.32 in the litter layer and the topsoil, respectively. Soil N-NH4+ was predominant over N-NO3-. After 40 days, the cumulative N-N2O emission was 0.33 kg ha-1. The mean C and N stocks were 3.8 Mg N ha-1 and 43.6 Mg C ha-1, respectively. The averaged soil δ15N was 6.8‰. Soil δ13C was -20.3‰. After 14 years of implementation, approximately 40% of the total C in the topsoil (0-20 cm depth) was derived from the AFS biomass input, predominantly from the C3 photosynthetic pathway. The studied biodiverse AFS that replaced a degraded agricultural field in the Cerrado region showed to be responsive both in terms of soil and plant C and N pools and fluxes.
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Aerts R. Nutrient resorption from senescing leaves of perennials: are there general patterns? Journal of Ecology, v. 84, n. 4, p. 597– 608, 2013.
Alluvione F, Bertora C, Zavattaro L. Grignani C. Nitrous Oxide and Carbon Dioxide Emissions Following. Soil Science Society of America Journal v. 74, p. 384–395, 2010.
Alves BJR, Smith KA, Flores RA, Cardoso AS, Oliveira WRD, Jantalia CP et al. Selection of the most suitable sampling time for static chambers for the estimation of daily. Soil Biology and Biochemistry, v. 46, p. 129-135, 2012.
Amazonas NT, Martinelli LA, Piccolo MC, Rodrigues RR. Nitrogen dynamics during ecosystem development in tropical forest restoration. Forest Ecology and Management, v. 262, p. 1551–1557, 2011.
Assad ED, Pinto HS, Martins SC, Groppo JD, Salgado PR, Evangelista B et al. Changes in soil carbon stocks in Brazil due to land use: paired site comparisons and a regional pasture soil survey. Biogeosciences, v. 10, p. 6141– 6160, 2013.
Balesdent J, Wagner GH, Mariotti A. Soil organic matter turnover in long‑term field experiments as revealed by carbon-13 natural abundance. Soil Science Society of America Journal, v. 52, p. 118-124, 1988.
Bayer C, Gomes J, Zanatta JA, Vieira FCB, Piccolo MC, Dieckow J et al. Soil nitrous oxide emissions as affected by long-term tillage, cropping systems and nitrogen fertilization in Southern Brazil. Soil and Tillage Research, v. 146, p. 213-222, 2015.
Booth MS, Stark JM, Rastetter EA. Controls on nitrogen cycling in terrestrial ecosystems: a synthetic analysis of literature data. Ecological Monographs v. 75, n. 2, p. 139–157, 2005.
Brasil. Decreto n. 8.952, de 9 de janeiro de 2017. Diário Oficial da República Federativa do Brasil, Brasília, DF, 2017.
Bustamante MMC, Nardoto GB, Pinto AS, Resende JCF, Takahashi FSC, Vieira LCG. Potential impacts of climate change on biogeochemical functioning of Cerrado ecosystems. Brazilian Journal of Biology, v. 72, n. 3, p. 655-671, 2012.
Bustamante MMC, Martinelli LA, Silva DA, Camargo PB, Klink CA, Domingues TF et al. 15N natural abundance in woody plants and soils of central Brazilian savannas (cerrado). Ecological Applications, v. 14, p. 200-213, 2004.
Campanha MM, Oliveira AD de, Marriel IE, Ribeiro FP, Landau C, Gontijo Neto MM et al. Effect of soil tillage and N fertilization on N2O mitigation in maize in the Brazilian Cerrado. Science of the Total Environment, v. 692, p. 1165-1174, 2019.
Carvalho AM, Oliveira WRD de, Ramos MLG, Coser TR, Oliveira AD de, Pulrolnik et al. Soil N2O fluxes in integrated production systems, continuous pasture and Cerrado. Nutrient Cycling in Agroecosystems, v. 108, p. 69-83, 2017.
Carvalho AM, Bustamante MMC, Coser TR, Marchão RL, Malaquias JV. Nitrogen oxides and CO2 from an Oxisol cultivated with corn in succession to cover crops. Pesquisa agropecuária brasileira, v. 51, p. 1213-1222, 2016.
Catão ECP, Lopes FAC, Rubini MR, Nardoto GB, Prosser JI, Krüger RH. Short-term impact of soybean management on ammonia oxidizers in a Brazilian savanna under restoration as revealed by coupling different techniques. Biology and Fertility of Soils, v. 52, p. 401–412, 2016.
Coletta LD, Nardoto GB, Latansio-Aidar SR, Rocha HRD, Ometto JPHB. Isotopic view of vegetation and carbon and nitrogen cycles in a cerrado ecosystem, southeastern Brazil. Scientia Agricola, v. 66, n. 4, p. 467–475, 2009.
Craine JM, Elmore AJ, Wang L, Augusto L, Baisden WT, Brookshire ENJ et al. Convergence of soil nitrogen isotopes across global climate gradients. Scientific reports, v. 5, p. 8280, 2015.
Craine JM, Elmore AJ, Aidar MP, Bustamante MMC, Dawson TE, Hobbie EA et al. Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability. New Phytologist, v. 183, n. 4, p. 980–992, 2009.
Davidson EA, Carvalho CJR, Figueira AM, Ishida FY, Ometto JPHB, Nardoto GB et al. Recuperation of nitrogen cycling in Amazonian forests following agricultural abandonment. Nature, v. 447, n. 7147, p. 995-998, 2007.
Faria SM, Lewis GP, Sprent JI, Sutherland JM. Occurrence of nodulation in the Leguminosae. New Phytologist, v. 111, n. 4, p. 607–619, 1989.
Faria SM, Lima HC. Additional studies of the nodulation status of legume species in Brazil. Plant and Soil, v. 200, n. 2, p. 185–192, 1998.
Figueiredo CC, Oliveira AD, Santos IL, Ferreira EAB, Malaquias JV, Carvalho AM. Relationships between soil organic matter pools and nitrous oxide emissions of agroecosystems in the Brazilian Cerrado. Science of the Total Environment, v. 618, p. 1572-1582, 2018.
Fontes AG, Gama-Rodrigues AC, Gama-Rodrigues EF, Sales MVS, Costa MG, Machado RCR. Nutrient stocks in litterfall and litter in cocoa agroforests in Brazil. Plant and soil, v. 383, n. 1-2, p. 313–335, 2014.
Gibbs, H. K., Ruesch A. S., Achard, F., Clayton, M. K., Holmgren, P., Ramankutty, N., Foley, J. A. (2010). Tropical forests were the primary sources of new agricultural land in the 1980s and 1990s. Proceedings of the National Academy of Sciences, 107(38), 16732–16737.
Godfray HCJ, Beddington JR, Crute IR, Haddad L, Lawrence D, Muir JF, et al. Food security: the challenge of feeding 9 billion people. Science, v. 327, n. 5967, p. 812–818, 2010.
Heerwaarden LM, Toet S, Aerts R. Current measures of nutrient resorption efficiency lead to a substantial underestimation of real resorption efficiency: facts and solutions. Oikos, v. 101, n. 3, p. 664–669, 2003.
Hunke P, Mueller EM, Schroder B, Zeilhofer P. The Brazilian Cerrado: assessment of water and soil degradation in catchments under intensive agricultural use. Ecohydrology, v. 8, p. 1154–1180, 2015.
Lilienfein, J, Wilcke, W. Element storage in native, agri-, and silvicultural ecosystems of the Brazilian savanna. Plant and Soil, v.254, p. 425-442, 2003.
Lilienfein J, Wilcke W, Zimmermann R, Gerstberger P, Araújo GM, Zech W. Nutrient storage in soil and biomass of native Brazilian Cerrado. Journal of Plant Nutrition and Soil Science, v. 164, n. 5, p. 487–495, 2001.
Lilienfein J, Wilcke W, Vilela L, Ayarza MA, Lima SDC, ZechW. Soil fertility under native cerrado and pasture in the Brazilian savanna. Soil Science Society of America Journal, v. 67, n. 4, p. 1195–1205, 2003.
Martinelli GC, Schlindwein MM, Padovan MP, Vogel A, Ruviaro CF. Environmental performance of agroforestry systems in the Cerrado biome, Brazil. World Development, v. 122, p. 339–348, 2019.
McGill WB, Cole CV. Comparative aspects of cycling of organic C, N, S and P through soil organic matter. Geoderma, v. 26, p. 267–286, 1981.
Miranda SDC, Bustamante M, Palace M, Hagen S, Keller M, Ferreira LG. Regional variations in biomass distribution in Brazilian savanna woodland. Biotropica, v. 46, n. 2, p. 125–138, 2014.
Moreira FMS, Silva MF, Faria SM. Occurrence of nodulation in legume species in the Amazon region of Brazil. New Phytologist, v. 121, n. 4, p. 563–570, 1992.
Nardoto GB, Bustamante MMC. Effects of fire on soil nitrogen dynamics and microbial biomass in savannas of Central Brazil. Pesquisa Agropecuária Brasileira, v. 38, n. 8, p. 955–962, 2003.
Nardoto GB, Bustamante MMC, Pinto AS, Klink CA. Nutrient use efficiency at ecosystem and species level in savanna areas of Central Brazil and impacts of fire. Journal of Tropical Ecology, v. 22, n. 2, p. 191-201, 2006.
Olson JS. Energy storage and the balance of producers and decomposers in ecological systems. Ecology, v. 44, n. 2, p. 322–331, 1963.
Pereira OJR, Ferreira LG, Pinto F, Baumgarten L. Assessing Pasture Degradation in the Brazilian Cerrado Based on the Analysis of MODIS NDVI Time-Series. Remote Sensing, v. 10, n. 11, p. 1761, 2018.
Pinheiro-Alves R, Couto Junior AF, Martins ES, Nardoto GB. Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil. Pesquisa Agropecuária Brasileira, v. 51, n. 9, p. 1241-1251, 2016.
Pinto AS, Bustamante MMC, Kisselle K, Burke R, Zepp R, Viana LT et al. Soil emissions of N2O, NO, and CO2 in Brazilian Savannas: Effects of vegetation type, seasonality, and prescribed fires. Journal of Geophysical Research: Atmospheres, v. 107, n. D20, LBA 57, 1-9, 2006.
R Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria, 2016
Santos IL, Oliveira AD, Figueiredo CC, Malaquias JV, Santos JDDG, Ferreira EAB et al. Soil N2O emissions from long-term agroecosystems: Interactive effects of rainfall seasonality and crop rotation in the Brazilian Cerrado. Agriculture, Ecosystems & Environment, v. 233, p. 111–120, 2016.
Sano EE, Rosa R, Brito JLS, Ferreira LG. Land cover mapping of the tropical savanna region in Brazil. Environmental Monitoring and Assessment, v. 166, p. 113-124, 2010.
Sato JH, Carvalho AM, Figueiredo CC, Coser TR, Sousa TR, Vilela, L et al. Nitrous oxide fluxes in a Brazilian clayey oxisol after 24 years of integrated crop-livestock management. Nutrient Cycling in Agroecosystems, v. 108, p. 55-68, 2017.
Sato JH, Figueiredo CC, Marchão RL, Oliveira AD, Vilela L, Delvico FMS et al. Understanding the relations between soil organic matter fractions and N2O emissions in a long-term integrated crop-livestock system. European Journal of Soil Science, v. 70, p. 1183-1196, 2019.
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