József Lennert

Dr. József Lennert

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2019 in Cities
Verified
Journal Article
Closed access
Zoltán KovácsZoltán Kovács
Zoltán Kovács
JFJenő Zsolt Farkas
Jenő Zsolt Farkas
TETamás Egedy
Tamás Egedy
AKAttila Csaba Kondor
Attila Csaba Kondor
BSBalázs Szabó
Balázs Szabó
BKBalázs Kohán
Balázs Kohán

20 April 2020 in Sustainability
Verified
Journal Article
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JLJózsef Lennert
József Lennert
JFJenő Zsolt Farkas
Jenő Zsolt Farkas
AKAndras Donat Kovacs
Andras Donat Kovacs
AMAndrás Molnár
András Molnár
RMRita Módos
Rita Módos
Zoltán KovácsZoltán Kovács
Zoltán Kovács
The loss of farmland to urban use in peri-urban areas is a global phenomenon. Urban sprawl generates a decline in the availability of productive agricultural land around cities, causing versatile conflicts between nature and society and threatening the sustainability of urban agglomerations. This study aimed to uncover the spatial pattern of long-term (80 years) land cover changes in the functional urban area of Budapest, with special attention to the conversion of agricultural land. The paper is based on a unique methodology utilizing various data sources such as military-surveyed topographic maps from the 1950s, the CLC 90 from 1990, and the Urban Atlas from 2012. In addition, the multilayer perceptron (MLP) method was used to model land cover changes through 2040. The research findings showed that land conversion and the shrinkage of productive agricultural land around Budapest significantly intensified after the collapse of communism. The conversion of arable land to artificial surfaces increased, and by now, the traditional metropolitan food supply area around Budapest has nearly disappeared. The extent of forests and grasslands increased in the postsocialist period due to national afforestation programs and the demand of new suburbanites for recreational space. Urban sprawl and the conversion of agricultural land should be an essential issue during the upcoming E.U. Common Agricultural Policy (CAP) reforms.

20 July 2022 in Sustainability
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Journal Article
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GVGábor László Vasárus
Gábor László Vasárus
JLJózsef Lennert
József Lennert
Suburbanization is one of the most prominent processes of post-socialist urban development, leading to the deconcentration of people, capital, as well as productive and non-productive activities within the functional urban area. This phenomenon also has a significant impact on the traditional rural landscape and leads to environmental and social sustainability challenges. Outmigration from the city center to the rural municipalities of the agglomeration ring is already a thoroughly studied topic. However, less attention is given to migration processes not crossing municipal borders. In Hungary, a significant fraction of them is driven by similar motivations as “traditional” suburbanization. Such movements include flows to built-up residential areas that are physically separated from the urban core. Due to their peculiar development path, the inhabited outskirts can also become destinations for within-city migration. This kind of mobility can be considered suburbanization within the city limits. Because of the general lack of data, this phenomenon is seldom researched. However, this study attempts to address this gap. The prevalence of this process in Hungary is explored by analyzing national statistical data sources. Four case studies are selected for detailed examination—Győr, Zalaegerszeg, Kecskemét, and Szeged. GIS methods, field examinations, surveys, and expert interviews are used to get a detailed picture of the demographic and land cover change processes, as well as the distinctions between the destination areas of the case studies. A comparison of the results drawn from the different methods reveals that land use change in the study area is more widespread than what the land cover datasets indicate. The findings indicate that the Corine Land Cover categories describing mixed land use—especially complex cultivation patterns—are not able to capture the drastic function shift caused by intense suburbanization. Different environmental and social sustainability issues are identified depending on the economic status of the outmigrants. This paper also sheds some light on the urban planning considerations of this emerging challenge.

6 January 2024 in Horticulturae
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Journal Article
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JLJózsef Lennert
József Lennert
KKKatalin Kovács
Katalin Kovács
BKBálint Koós
Bálint Koós
NSNigel Swain
Nigel Swain
CBCsaba Bálint
Csaba Bálint
AKAndras Donat Kovacs
Andras Donat Kovacs
This paper aims to analyze comprehensively the climate exposure, sensitivity, perception, adaptive capacity, vulnerability, and resilience of the Hungarian agricultural sector, particularly focusing on fruit, vegetable, and grape producers. Four distinct Hungarian case studies were examined, representing different regions with diverse environmental and socioeconomic conditions. The research combined quantitative and qualitative methods, including statistical and GIS analysis of climate, agricultural, and socioeconomic data, as well as field research and semi-structured interviews. The study investigated exposure, sensitivity, perception, and adaptation, leading to the identification of key components and influencing factors. Qualitative research revealed that farms operating in geographically close proximity, in the same regulatory and support environment, can have different adaptive capacities. In the current state of the adaptation process, the extent to which farmers can rely on supportive professional networks and seek out and adopt new practices is crucial. Field experience suggests that without a strong and supportive producer organization (extension network), farmers may prefer to resort to extensification (afforestation) to mitigate production risks. From a development policy perspective, it is worthwhile to present good practices and provide information on possible adaptation techniques through existing local sectoral organizations.

1 January 2018 in Geographica Pannonica
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Journal Article
Open access
GVGábor László Vasárus
Gábor László Vasárus
PBPéter Bajmócy
Péter Bajmócy
JLJózsef Lennert
József Lennert
In the shadow of the city: demographic processes and emerging conflicts in the rural-urban fringe of the Hungarian agglomerations

1 January 2020 in Studia Obszarów Wiejskich
Verified
Journal Article
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JLJózsef Lennert
József Lennert
JFJenő Zsolt Farkas
Jenő Zsolt Farkas
This paper aspires to provide a thorough overview of the transformation of the Hungarian agricultural sector from 1990 through to 2020. After a brief historical outline, three decades of changes and the present state are discussed in the context of the legislative framework, farm and ownership structure, production structure, land use and ecological sustainability. The changing role played by agriculture in the Hungarian economy and rural societies is also taken into consideration, while the overarching effects of EU accession and the introduction of the CAP are also investigated. The establishment of a legislative framework for privatisation and compensation in respect of the former collectivisation proved one of the major challenges during the transition to a market economy. As a result, this evened out the shares of all agricultural land in private and legal holdings in the first decade, with the number of smallholders exceeding one million. However, the following two decades were characterised by concentration, as the overall number of private holdings fell quickly, while there was an increase in numbers of those with more than 10 ha of utilised agricultural land. Hungary’s political and economic transition was followed immediately by a dramatic decline in terms of production output. However, after the initial plunge, crop production started to rise again rapidly, so that by the early 2000s it had surpassed what had been achieved during the communist era. In contrast, the crisis in livestock production proved to be more prolonged.