Biological indicators for evaluating soil quality improvement in a soil degraded by erosion processes
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Erosion is one of the main soil degradation problems. It diminishes soil biological activity and therefore its quality. The aim of the study was to evaluate if the application of two biostimulation processes could significantly increase biological activity, and therefore productivity, in soils deteriorated by erosion. This was done without synthetic fertilizers but with treatments accessible for farmers, in line with the 2030 Agenda for Sustainable Development. In particular, the addition of a soil microorganism suspension or Macrocystis pyrifera algae concentrate was evaluated.
Materials and methods
Soil samples were taken from a field area (Bihor County, Romania) affected by surface erosion processes. In particular, microbial mass, dehydrogenase activity (DHA), and the bacteria and fungi presence were analyzed for three soil uses (corn, black locust and uncultivated field with terracing) and in different locations (above a slope, at the midpoint and below it). A bio-stimulation process (addition of a microbial suspension or seaweed concentrate based on the Macrocystis pyrifera algae; incubation for 24 h) was used in order to improve the activity of the soil with the lowest values of activity.
Results and discussion
Statistical differences in DHA, bacterial numbers, and microbial biomass were found depending on field use and the areas from which the soil samples were gathered. Higher values of the biological parameters were in general recorded in the middle part of the slope, because they favor bioaccumulation processes (e.g., actual and potential dehydrogenase activity values of about 3 mg TPF/10 g dry soil). The use of microbial suspensions did not significantly stimulate DHA for the soils with a low biological potential. This activity was stimulated by adding the seaweed concentrate to the soil.
The use of the seaweed concentrate can be a good practice for improving activity in eroded soil. The study provides useful indications for better soil fertility management, in line with many of the goals of the 2030 Agenda For Sustainable Development.
KeywordsAlgae Dehydrogenase activity Microbial metabolism Seaweed concentrate
- Alef K (1995) Dehydrogenase activity. In: Alef K, Nannipieri P (eds) Methods in applied soil microbiology and biochemistry. Academic Press, London, pp 228–231Google Scholar
- Atlas RM (2004) Handbook of microbiological media, third edition. Taylor & Francis Inc, Boca Raton, USAGoogle Scholar
- Balser T, Kinzig A, Firestone M (2002) The functional consequences of biodiversity. In: Kinzig A, Pacala S, Tilman D (eds) The functional consequences of biodiversity. Princeton University Press, Princeton, pp 265–293Google Scholar
- Berlyn GP, Russo RO (1990) The use of organic biostimulants to promote root growth. Below Gr Ecol 1:12–13Google Scholar
- Blunden G, Morse PF, Mathe I, Hohmann J, Critchleye AT, Morrell S (2010) Betaine yields from marine algal species utilized in the preparation of seaweed extracts used in agriculture. Nat Prod Commun 5(4):581–585Google Scholar
- Brzezińska M, Stępniewski W, Stępniewska Z, Przywara G (2001) Effect of oxygen deficiency on soil dehydrogenase activity in a pot experiment with Triticale CV. Jago Veg Int Agrophysics 15:145–149Google Scholar
- Dincă L, Spârchez G, Dincă M (2014) Romanian’s forest soil GIS map and database and their ecological implications. Carpathian J Earth Environ Sci 9(2):133–142Google Scholar
- Eurostat (2017) Agri-environmental indicator - greenhouse gas emissions. Available at http://ec.europa.eu/eurostat/statistics-explained/index.php/Agri-environmental_indicator_-_greenhouse_gas_emissions. Accessed Dec 2018
- FAO (2015) Global guidelines for the restoration of degraded forests and landscapes in drylands: building resilience and benefiting livelihoods. Forestry paper no. 175. Rome: FAOGoogle Scholar
- Muller A, Bautze L, Meier M, Gattinger A, Gall E, Chatzinikolaou E, Meredith S, Ukas T, Ullmann L (2016) Organic farming, climate change mitigation and beyond. IFOAM EU. Available at: http://www.ifoam-eu.org/sites/default/files/ifoameu_advocacy_climate_change_report_2016.pdf. Accessed Dec 2018
- Munteanu I (1997) Review of soil and terrain data, human-indiced soil degradation and soil vulnerability assessment in Romania. In: BatjesNH, Bridges EM (Eds). Implementation of a soil degradation and vulnerability database for central and Eastern Europe (SOVEUR project). Proceedings of an international workshop Wageningen, 1–3 October 1997. FAO and ISRIC, pp. 69–72. Available at http://www.isric.org/sites/default/files/2017-03/SOVEUR_Proc97.PDF (Accessed April 2018)
- Nannipieri P, Grego S, Ceccanti B (1990) Ecological significance of the biological activity in soil. In: Bollag JW, Stotzky G (eds) Soil biochemistry, vol 6. Marcel Dekker Inc, New York, USA, pp 293–355Google Scholar
- Nielsen MN, Winding A (2002) Microorganisms as indicators of soil health. National Environmental Research Institute, Denmark. Technical Report No. 388, 82Google Scholar
- Onet A, Teusdea A, Boja N, Domuta C, Onet C (2016) Effects of common oak Quercus robur L. defoliation on the soil properties of an oak forest in Western plain of Romania. Annal Forest Res 59(1):33–47Google Scholar
- Possinger AR (2013) Using seaweed as a soil amendment: effects on soil quality and yield of sweet corn Zea mays L. Open access master’s theses. Paper 78Google Scholar
- Schumacher BA (2002) Methods for the determination of total organic carbon toc. in soils and sediments. Ecological Risk Assessment Support Center. US. Environmental Protection Agency pp. 23Google Scholar
- Setboonsarng S, Gregorio EE (2017). Achieving sustainable development goals through organic agriculture: empowering poor women. ADB Southeast Asia working paper series no. 15. Available at: https://www.adb.org/sites/default/files/publication/384836/swp-15.pdf. Accessed Dec 2018
- Stolte J, Tesfai M, Øygarden L, Kværnø S, Keizer J, Verheijen F, Panagos P, Ballabio C, Hessel R (2016) Soil threats in Europe: status, methods, drivers and effects on ecosystem services. A review report, deliverable 2.1 of the RECARE projec EUR 27607 EN. JRC Technical Reports 206 pp. Available at https://esdac.jrc.ec.europa.eu/public_path/shared_folder/doc_pub/EUR27607.pdf. Accessed Sept 2018
- Tóth G, Stolbovoy V, Montanarella L (2007) Soil quality and sustainability evaluation an integrated approach to support soil-related policies of the European Union – a JRC position paper. European Commission, Joint Research Centre, Institute for Environment and Sustainability. EUR 22721 EN. Office for Official Publications of the European Communities, Luxembourg, 40 pp. Available at http://eusoils.jrc.ec.europa.eu/ESDB_Archive/eusoils_docs/other/EUR22721.pdf. Accessed Dec 2018
- United Nations (UN) 2015. Transforming our world: the 2030 agenda for sustainable development. Resolution adopted by the general assembly on 25 September 2015, A/RES/70/1. UN General Assembly: New YorkGoogle Scholar
- Van Veen JA, Van Overbeek LS, Van Elsas JD (1997) Fate and activity of microorganisms introduced into soil. Microbiol Mol Biol Rev 61(2):121–135Google Scholar
- Wolińska A, Stępniewska Z (2011) Microorganisms abundance and dehydrogenase activity as a consequence of soil reoxidation process. In: Miransari M (ed) Soil tillage & microbial activities. Research Singpost, Kerala, India, pp 111–143Google Scholar
- Wolińska A, Stępniewska Z (2012) Dehydrogenase activity in the soil environment, dehydrogenases. Canuto RA (ed) InTech, https://doi.org/10.5772/48294. Available at: https://www.intechopen.com/books/dehydrogenases/dehydrogenase-activity-in-the-soil-environment. Accessed Dec 2018