Compilation of Functional Soil Maps for the Support of Spatial Planning and Land Management in Hungary

Pásztor, László; Laborczi, Annamária; Takács, Katalin; Szatmári, Gábor; Fodor, Nándor; Illés, Gábor; Farkas-Iványi, Kinga; Bakacsi, Zsófia; Szabó, Jácint

doi:10.1016/b978-0-12-805200-6.00009-8

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…The GlobalSoilMap initiative (Arrouays et al, 2014;Sanchez et al, 2009) significantly inspired the DOSoReMI.hu (Digital, Optimized, Soil Related Maps and Information in Hungary) project (Pásztor et al, 2017), which was started intentionally for the renewal of the national spatial soil data infrastructure in Hungary. The main objectives of the work have been to broaden the possibilities, how demands on spatial soil-related information could be satisfied in Hungary.…”

Section: The Renewed National Spatial Soil Data Infrastructure In Hungarymentioning

confidence: 99%

Earth observation and geospatial big data management and engagement of stakeholders in Hungary to support the SDGs

Mihály¹,

Remetey-Fülöpp²,

Kristóf

et al. 2021

Big Earth Data

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To support the monitoring and reporting processes during implementation of the Sustainable Development Goals, well-developed, commonly recognized Earth observations and geospatial data, methods, innovations, committed professionals, and strong sustainability policies are necessary. This article informs the readers on the Earth observation and geoinformation developments and innovations, and on the engagement of profession, academy and governance to support implementation of the Sustainable Development Goals in Hungary.Description, analyses and critical assessments are given on the elements selected from Hungarian sustainable-oriented Earth observation and geospatial novelties: (a) Working Group for Sustainable Development mission and national sustainabilitypolicy, (b) international partnerships, domestic activities and achievements, (c) status of the professional education, (d) spatial databases and services to support implementation of the sustainable development, (e) a case study on the internationally recognized soil geoinformation system, (f) national Earth Observation Information System and perspectives of its applications for monitoring the sustainability.The article conclusion strongly advises the Hungarian realization of (a) institutionalization of the Earth observation and geospatial tools and capacity for sustainable development, (b) their use in integration with statistical data, (c) establishment of national spatial information infrastructure and (d) development and spreading of the use of big data.

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Section: The Renewed National Spatial Soil Data Infrastructure In Hungarymentioning

confidence: 99%

Earth observation and geospatial big data management and engagement of stakeholders in Hungary to support the SDGs

Mihály¹,

Remetey-Fülöpp²,

Kristóf

et al. 2021

Big Earth Data

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“…A hazai szakirodalmi források is jellemzően agrokémiai szempontból vizsgálják a talaj NH4 + tartalmát, azonban döntően a kicserélhető formában jelen lévő NH4 + mennyiségére fókuszálnak (HOFFMANN, 1991;NÉMETH, 2002;NÓTÁS et al, 2002;GULYÁS et al, 2014;MONOSTORI, 2016), a fixált NH4 + meghatározása -közvetett hatása révén -nem tartozik a rutin mérési eljárások közé. A talaj szervetlen nitrogéntartalmának környezetvédelmi vonatkozásait is számos hazai tanulmány vizsgálta, itt ugyanakkor döntően a nitrát-ion került a kutatások fókuszpontjába (KÁDÁR és NÉMETH, 1993;NÉMETH, 1995;IZSÁKI és IVÁNYI, 2005;JAKAB et al, 2017;PÁSZTOR et al, 2017).…”

Section: Bevezetésunclassified

A talaj fixált ammónium-ion tartalmának hatása a talajvíz tisztulási folyamataira a szennyezőforrás felszámolását követően települési környezetben

Mester

Cavalli

Balla

et al. 2020

Agrokem

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Growing NH4+ content of groundwater results in increasing exchangeable and fixed ammonium ion content of the soil. NH4+ bond in the soil may go again into solution parallel with the dilution of the soil solution but at a slower rate than fixing. This process influences significantly the NH4+ content of the soil. In settlements with no sewerage system the high NH4+ content of sewage flowing out of uninsulated septic tanks may increase the fixed NH4-N content of the soil that could have a significant effect on the quality of groundwater even after the potential disappearance of pollution sources.In this study the effects of the fixed NH4-N content of the soil around an uninsulated residential septic tank on the purification processes of the groundwater were investigated. The septic tank in the study area was dismantled in 2014 after 27 years of operation as a sewerage system was constructed. When the tank was still in operation in 2012 and 2013, very high, 55–75 mg l-1 NH4+ content was measured in the water of the monitoring well 1 metre from the tank in the course of seasonal sampling. When sewage outflow was terminated in 2014 concentrations decreased right away but even 5 years after pollutant supply was stopped, concentrations (35–57 mg l-1) highly exceeding the pollution limit (0.5 mg l-1) were measured. Considering this very high concentration, it can be assumed that great amount of NH4+ is still released into the groundwater.In order to prove this, the exchangeable and fixed NH4-N and NO3-N contents of the soil were determined by 20 cm down to a depth of 4 metres (2019). The measurements indicated the significant accumulation of exchangeable and fixed NH4-N in the zone between 220 and 400 cm. Highest fixed NH4-N concentrations of 457 mg l-1 were found between 220 and 240 cm suggesting that sewage outflow was most intense at this depth. Slow decrease in concentrations can be observed in deeper zones but concentrations higher than 350 mg l-1 were measured between 220 and 380 cm. Based on correlation analyses, the quantity of fixed NH4-N shows no correlation with the soil texture thus it can be stated that the vertical pattern of NH4-N content is determined dominantly by sewage outflow and its depth. In the unsaturated zone of the borehole a significant accumulation of NO3-N was also identified. The maximum of NO3-N was found in the zone between 100 and 140 cm. The peak nitrate calculated for NO3- ion with a value >1300 mg kg-1 is 2.5 times the limit set for the nitrate content of the geological medium.Based on the results, exchangeable and fixed NH4-N contents in the soil are still very high, 5 years after sewage outflow was stopped. The continuous solution of this component still contributes to the high NH4+ content of the groundwater. As a result, the contaminated soil in the immediate environment of the septic tank is still a pollution source.

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“…Digital soil mapping (DSM), which has become a successful sub-discipline of soil science with an active research output [10], aims to provide spatial soil information for a wide range of studies, such as precision agriculture [11,12], hydrology [13][14][15], environmental sciences [16,17], conservation biology [18,19] or spatial planning [20,21]. For this purpose, geostatistical techniques are widely used, which have been complemented by machine learning algorithms in the past decade.…”

Section: Introductionmentioning

confidence: 99%

Elaborating Hungarian Segment of the Global Map of Salt-Affected Soils (GSSmap): National Contribution to an International Initiative

et al. 2020

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Recently, the Global Map of Salt-affected Soils (GSSmap) was launched, which pursued a country-driven approach and aimed to update the global and country-level information on salt-affected soils (SAS). The aim of this paper was to present how Hungary contributed to GSSmap by preparing its own SAS maps using advanced digital soil mapping techniques. We used not just a combination of random forest and multivariate geostatistical techniques for predicting the spatial distribution of SAS indicators (i.e., pH, electrical conductivity and exchangeable sodium percentage) for the topsoil (0–30 cm) and subsoil (30–100 cm), but also a number of indices derived from Sentinel-2 satellite images as environmental covariates. The importance plots of random forests showed that in addition to climatic, geomorphometric parameters and legacy soil information, image indices were the most important covariates. The performance of spatial modelling was checked by 10-fold cross validation showing that the accuracy of the SAS maps was acceptable. By this study and by the resulting maps of it, we not just contributed to GSSmap, but also renewed the SAS mapping methodology in Hungary, where we paid special attention to modelling and quantifying the prediction uncertainty that had not been quantified or even taken into consideration earlier.

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Compilation of Functional Soil Maps for the Support of Spatial Planning and Land Management in Hungary

Cited by 10 publications

References 35 publications

Earth observation and geospatial big data management and engagement of stakeholders in Hungary to support the SDGs

Earth observation and geospatial big data management and engagement of stakeholders in Hungary to support the SDGs

A talaj fixált ammónium-ion tartalmának hatása a talajvíz tisztulási folyamataira a szennyezőforrás felszámolását követően települési környezetben

Elaborating Hungarian Segment of the Global Map of Salt-Affected Soils (GSSmap): National Contribution to an International Initiative

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