Land Transformation Research Articles

Constructing ecological security pattern based on spatio-temporal evaluation of ecosystem services and ecological health in Chengdu, Southwest China

IntroductionWith the acceleration of urbanization, human population and built surface in urban areas have increased rapidly, triggering numerous environmental problems. Identification of ecological security pattern (ESP) can be helpful to optimize the interaction and relationship between ecological conservation and socioeconomic development in a given region. In this study, taking Chengdu City as an example, a methodology was used to analyze the city’s ESP.MethodologyEcological sources were identified based on their ecological security values, which were derived from the spatio-temporal evaluation of ecosystem services and ecological health. The ecological resistance surface was revised with nighttime light index. Linkage Mapper combined with circuit theory was used to extracted ecological corridors and key ecological nodes.Results:The results showed that the mean values of ecological security in Chengdu City presented a downward and then upward trend from 2000 to 2018. In 2018, the ESP in Chengdu City was formed by 140 ecological sources with the total area of 8,819.78 km2, 302 ecological corridors with the area of 456.91 km2, as well as 61 pinch-points and 17 barrier points. The ecological sources in Chengdu City were mainly distributed in or nearby Longmen Mountain and Longquan Mountain, two flanks of the Chengdu Plain, and connected each other with hundreds of ecological corridors. Most of ecological sources and corridors were composited of forests in mountainous areas and linpan units (wooded lots) in rural plain areas. On the contrary, pinch-points and barrier points were mainly distributed in the districts nearby the metropolitan urban center.ConclusionFinally, this study proposed that constructing ESP must adopt a dynamic and holistic approach in considering the change of restoring ecosystems, shift of urban demands for ecosystem services and transformation of urban-rural land use/cover. Restoring and managing corridors sustainably are important for improving the ecological connectivity of all over ecological sources in a city, all of which together, if functioning well, could further support the realization of sustainable urbanization.

Squeezed between Land and Water: Rupture, Frontier-Making, and Resource Conflicts at Cambodia's Lower Sesan 2 Hydropower Dam

Hydropower dam projects in the Lower Mekong Basin are part of long-term and interactive land and water transformations, displacement, and violence. Within these ongoing processes, dams represent intense and adverse episodes of disruption that escalate nature-society transformations. Drawing on research at Cambodia's Lower Sesan 2 Hydropower Dam (LS2 Dam), we examine how such episodes of nature-society rupture catalyze new waves of frontier-making and mobility that further intensify land and resource struggles. 1 In this ethnically diverse landscape, the abrupt hydrological changes caused by the LS2 Dam have escalated land struggles among various ethnic groups, especially migrants intent on claiming land and water resources, and Indigenous/minority groups displaced by the dam. We show how historical relations with land and socio-political marginalization by the state have produced differentiated opportunities, risks, and frictions among the four main ethnic groups present in this landscape: Indigenous Bunong, Lao, Cham, and Khmer. The LS2 Dam case shows how nature-society rupture reifies frontier dynamics by disrupting existing land/water relations, which precipitates in-migration, new resource claims, and associated conflict along ethnic lines.

Digital Transformation of Land and Building Tax Stimulus Granting Policy in Palembang City

Digital Transformation of Land and Building Tax Stimulus Granting Policy in Palembang City

Multi-decadal land transformation in South-Western Punjab, India: a case study using geospatial techniques

Multi-decadal land transformation in South-Western Punjab, India: a case study using geospatial techniques

The distribution and abundance of woody invasive alien plants in small towns in Eastern Cape Province, South Africa

Invasive alien plants (IAPs) are rapidly increasing around the world, mainly due to land transformation, climate change, and urbanisation. Whilst urban areas are highly susceptible to invasion by IAPs, crucial information on the distribution and abundance of woody invaders in small towns is limited. Here, we determined the distribution and abundance of woody IAPs across different suburbs and land use types in 12 small towns in the Eastern Cape province of South Africa. We enumerated 38 427 individual woody IAPs, and their abundance and distribution varied across surveyed towns. Although species such as Melia azedarach, Pinus elliotti, Jacaranda mimosifolia, Eucalyptus camaldulensis, and Ligustrum lucidum were the most distributed, species density varied across towns. More than half of the woody IAPs were identified in affluent (56%) suburbs compared to the townships (23%), Central business district (CBD) (16%), and low-income housing neighbourhoods (5%). There were significant differences in woody IAPs distribution across different land use types, with more than half (54%) found in the residential areas compared to road verges (32%) and public urban green spaces (14%). Some socio-economic and environmental predictors such as town population, mean temperature, unemployment rate, and Gross domestic product (GDP) showed significant and positive correlations with woody IAPs species richness and density. Our findings suggest an uneven spatial distribution and diversity of woody IAPs across the different small towns, suburbs, and land use types in the region. It is recommended that small towns in South Africa need financial and human resources support to effectively manage IAPs.

Changes in leaf area index by tropical forest transformation to plantations increase below-canopy surface temperatures

Climate change affects life in tropical landscapes by increasing temperatures, among other impacts. In addition, land transformation from forest to other land cover types typically increases temperatures of surfaces exposed to direct solar radiation. In rural areas, however, many organisms including humans live sheltered below canopies, but little is known about below-canopy surface temperatures. We assessed canopy leaf area index (LAI) and below-canopy surface temperatures in a landscape of rural lowland Sumatra, Indonesia. In this region, land-use trajectories in the past decades led from forest to monocultural plantations. We found that LAI varied more than 10-fold, with the highest values observed in forest and low values in rubber and oil palm plantations. Below-canopy surface temperatures increased significantly with decreasing LAI. A decrease in LAI by one unit (m2 leaf area per m2 ground area) increased ground surface temperature by 0.95 °C (confidence interval: 1.07–0.83 °C) around noon. Likewise, the temperatures measured on peoples’ cap or hijab surfaces under the canopy was strongly affected. For a light-brown hijab, the average noon surface temperature increased by 4.0 °C from forest to oil palm. Thus, in addition to climate warming, land transformation and associated declines in canopy LAI significantly increased below-canopy surface temperatures. Strategies for mitigating such potentially adverse temperature effects may include the integration of more and densely foliated trees into landscapes.

Marxist past to speculative futures: migration, land markets, and political storytelling in Nepal’s Tarai

ABSTRACT In southeastern Nepal, international labor migration has led to complex socioeconomic changes, including expanding smallholder landownership, class differentiation, and the transformation of land from a productive to a speculative asset. Based on ethnographic research focusing on villagers’ narratives, this article finds that political imaginaries drawing on rural Marxist thought play a crucial role for interpreting recent historical experience but are losing purchase amidst increasingly dispersed, opaque, and contradictory processes of accumulation. It then identifies the emergence of a new speculative imaginary, through which villagers attempt to navigate but also reinforce these new constellations of inequality, capital, and labor.

Exploring equality and sustainability trade-offs of energy transition outcomes in the United States in 2050

With increasing focus on equitable and just energy transition, it is critical to understand the trade-offs of different decarbonization outcomes across economic, environmental, and social sustainability criteria. In this analysis, we use a multi-criteria decision analysis to quantify sustainability outcomes across 32 decarbonization outcomes in 2050 in the U.S. The economic sustainability criteria we use are system cost, national average retail rate, and electricity system employment. The environmental sustainability criteria we use are life cycle greenhouse gas emissions, life cycle water depletion, life cycle land transformation, and air pollution fatalities. The social sustainability (distributional impacts) criteria we use are retail rate equality across states, electricity employment equality across low-income households, and air pollution disparities across census tracts. We evaluate performance across these criteria under eleven different stakeholder preference scenarios. We find that decarbonization policies with indefinitely extended tax credits have the highest sustainability score under equal criteria weighting, with greater investments in renewable energy technologies, and result in better environmental, system cost, job, and air pollution disparities compared to mid-case scenarios, that only include current policies and CO2 reduction targets. We also see that our multi-criteria decision analysis identifies decarbonization outcomes that would not have been identified as optimal under a single objective, which highlights the importance of trade-off analyses to understand decarbonization outcomes more holistically.

Multi-scenario simulation and evaluation of the impacts of land use change on ecosystem service values in the Chishui River Basin of Guizhou Province, China

Changes in land-use patterns are the main driving factors of ecosystem service values (ESVs). The quantitative evaluation of ESVs is significant for the sustainable development of ecologically fragile areas. In this study, the Chishui River Basin (CRB) in China was selected as the study region, and an intensity map (IM) was used to analyze the transformation of land use/land cover (LULC). The modified equivalent coefficient value method was used to evaluate the ESVs based on the 2000, 2010, and 2020 land use datasets. The spatial and temporal distributions of ESV and its response to changes in LULC were analyzed using the Getis-Ord Gi* statistical method and Spearman’s rank correlation analysis. Moreover, spatial and temporal changes in LULC and ESV over the next 30 years in the four development scenarios were simulated using the Markov-PLUS model. The following results were obtained: 1) The farmland and forestland were the dominant LULC categories, and that the LULC pattern dramatically changed in the study area; 2) the total ESV of the CRB decreased significantly from 23.21 billion yuan in 2000 to 22.29 billion yuan in 2020; and 3) the ecological conservation scenario significantly promoted the total ESV, and the town development scenario was more conducive to the urbanization process. Therefore, although the ESV of the CRB showed a decreasing to slowly increasing trend in the context of a series of ecological restoration measures, scientific ecological protection and development policies must be continuously implemented to achieve harmony between ecological service improvement and urbanization development. Our results provide important information for making land-use decisions and facilitating sustainable development in ecologically protected basins.

EVALUATION AND VALORIZATION OF PERI-URBAN WASTELAND IN ALGERIA USING DATABASE INDICES

This study examined the transformation of fertile peri-urban land surrounding large Algerian cities. Khemis El Khechna municipality in Boumerdes province was a case study for this phenomenon. Researchers utilized remote sensing techniques through Geographic Information Systems (GIS) to quantify land-use change. Specifically, the Normalized Difference Vegetation Index (NDVI) contributed to finding regions with high biodiversity and healthy vegetation, while the Normalized Difference Built-up Index (NDBI) highlighted areas of concentrated buildings. This data was crucial in identifying wastelands or potential wastelands. The ultimate goal was to promote the development of such areas as an alternative to encroaching on productive farmland. The indexes and their database hold great promise for agriculture in the form of a national cadaster. The method could also be easily applied to other African countries, by promoting the utilization of wasteland and the adoption of precise farming methods.

Soil organic carbon as an indicator of land use impacts in life cycle assessment

PurposeAnthropogenic activities are a major driver of soil and land degradation. Due to the spatial heterogeneity of soil properties and the global nature of most value chains, the modelling of the impacts of land use on soil quality for application in life cycle assessment (LCA) requires a regionalised assessment with global coverage. This paper proposes an approach to quantify the impacts of land use on soil quality, using changes in soil organic carbon (SOC) stocks as a proxy, following the latest recommendation of the Life Cycle Initiative.MethodsAn operational set of SOC-based characterisation factors for land occupation and land transformation were derived using spatial datasets (1 km resolution) and aggregated at the national and global levels. The developed characterisation factors were tested by means of a case study analysis, investigating the impact on soil quality caused by land use activities necessary to provide three alternative energy supply systems for passenger car transport (biomethane, ethanol, and solar electricity). Results obtained by applying characterisation factors at local, regional, and national levels were compared, to investigate the role of the level of regionalisation on the resulting impacts.Results and discussionGlobal maps of characterisation factors are presented for the 56 land use types commonly used in LCA databases, together with national and global values. Urban and industrial land uses present the highest impacts on SOC stocks, followed by severely degraded pastures and intensively managed arable lands. Instead, values obtained for extensive pastures, flooded crops, and urban green areas often report an increase in SOC stocks. Results show that the ranking of impacts of the three energy systems considered in the case study analysis is not affected by the level of regionalisation of the analysis. In the case of biomethane energy supply, impacts assessed using national characterisation factors are more than double those obtained with local characterisation factors, with less significant differences in the other two cases.ConclusionsThe integration of soil quality aspects in life cycle impact assessment methods is a crucial challenge due to the key role of soil conservation in ensuring food security and environmental protection. This approach allows the quantification of land use impacts on SOC stocks, taken as a proxy of soil quality. Further research needs to improve the assessment of land use impacts in LCA are identified, such as the ability to reflect the effects of agricultural and forestry management practices.

Temporal analysis of land degradation and urban expansion in central Yunnan Province using remote sensing for supporting sustainable development goals 11/15

Monitoring land degradation and urban expansion is crucial for sustainable development and environmental stewardship. It helps protect arable land, ensure food security, mitigate climate change impacts, and guide urban growth while minimizing environmental harm, thus advancing the Sustainable Development Goals (SDG).This study focuses on the application of the Trends.Earth tool, following the UN-SDG indicator framework, to assess land changes, urban expansion, and drought vulnerability in the central east region of Yunnan Province, China, during the period 2000 to 2020.The analysis reveals significant trends in land transformation and urban growth. Notably, the central Yunnan region demonstrated a positive trajectory, with 69.58% experiencing land improvement and 8.55% undergoing degradation. Urban areas expanded dramatically, with Kunming City growing threefold from 2000 to 2015 raising concerns about sustainable land management. Drought vulnerability assessments unveil the temporal variation and the extent of impact on the population.This research underscores the importance of remote sensing and its role in achieving the SDGs. By providing a comprehensive assessment of land dynamics, urbanization patterns, and environmental vulnerability. As Yunnan Province grapples with both developmental aspirations and ecological conservation imperatives, this study serves as a foundation for informed decision-making to balance economic growth and environmental protection.

Long-term land transformation alters potential ecological corridors and increases functional connectivity cost among nature reserves in Guangdong, China

Long-term land transformation alters potential ecological corridors and increases functional connectivity cost among nature reserves in Guangdong, China

Research on Green Infrastructure-Oriented Urban Vacant Land Transformation from the Perspective of One Health

Research on Green Infrastructure-Oriented Urban Vacant Land Transformation from the Perspective of One Health

РОЛЬ ВОЗОБНОВЛЯЕМЫХ ИСТОЧНИКОВ ЭНЕРГИИ В СОВРЕМЕННОМ МИРЕ

This article provides an extensive overview of the prospects and development of renewable energy sources in the context of the modern world. Special attention is given to the analysis of the human impact of human activities on the environment, identifying the effects of the destruction of biodiversity and the transformation of forest lands into lifeless spaces. The article makes an important conclusion about the urgent need to use renewable energy sources for sustainable development. It is noted that the application of green technology can play a key role in mitigating adverse impacts on the ecosystem by promoting a balance between human needs and environmental well-being. This article also raises the important question of prospects and transition to energy sustainability, as well as the challenges and opportunities that lie ahead in the introduction of renewable energy sources on the way to environmentally responsible development of our society.

Effects of management, habitat and landscape characteristics on biodiversity of orchard meadows in Central Europe: A brief review

Increasing agricultural intensification, combined with land transformation and fragmentation, poses significant threats to biodiversity. While extensively cultivated landscapes serve as vital refuges against biodiversity loss, they are modified by land abandonment and intensification. Orchard meadows in Central Europe represent traditional extensive land management systems, exhibiting high biodiversity. Comprising cultivated grasslands and scattered fruit trees, orchard meadows feature structures rich in different habitats supporting a diverse flora and fauna. However, their decreasing economic importance in recent decades has resulted in severe degradation or abandonment. Despite their importance for biodiversity conservation, there remains no comprehensive overview of orchard meadow biodiversity and management in Central Europe. This review aims to summarize existing knowledge on orchard meadows’ role in biodiversity conservation and the effects of management practices on habitat diversity and quality at both smaller (structure and microhabitats, local scale) and larger scales (surrounding landscape, regional scale). The first part focuses on orchard meadow biodiversity, including both plants and animals and their link to landscape-scale factors. Biodiversity in orchard meadows is predominantly affected by patch size, determining species richness and composition, and connectivity to neighbouring orchard meadows, influencing species migration and recolonization success. The second part evaluates management impacts, illustrating differences in the benefits of mowing versus grazing across taxonomic groups. An intermediate management intensity for orchard meadows determines their conservation value in terms of species composition, varying among different taxonomic groups. To prevent area loss and abandonment of orchard meadows, we advocate for political and public support, along with incentives for farmers to maintain their biodiversity.

Tourism Investment and Land Use Change in the Northern Piedmont of the Western High Atlas (1989-2022)

This study aimed to investigate the profound influence of tourism investment on the Northern Piedmont of the western High Atlas over 34 years in response to the escalating global trend of tourism-driven land-use changes, particularly in the Marrakesh region. In this context, the driving forces behind the significant transformation of agricultural land and bare soils into tourism-driven investments were evaluated as well as the critical role of accessibility in shaping spatial shifts. The method used high-resolution (10 m) satellite images from Spot 1 (1989), Spot 5 (2003 & 2010), and Sentinel 2 (2022) through remote sensing methods to investigate the historical land-use changes over 34 years. The results showed significant transformations in land-use based on the correlation between improved transportation infrastructure and the growth of tourism ventures, underscoring the role of roads and facilities as catalysts. The analysis suggested the need for reflection on the consequences of unregulated tourism growth, aiming to balance economic benefits with environmental and socio-cultural challenges in sensitive regions. Although tourism significantly contributed to economic development and employment opportunities, it also posed risks when not managed prudently. This underscored the need to strike a harmonious equilibrium between economic prosperity as well as preserving the unique natural beauty and cultural heritage of the region. The insights provided in this analysis had broader implications for responsible planning and management of tourism development in sensitive ecological and cultural regions. In conclusion, a thoughtful and sustainable approach was needed to safeguard the delicate balance between economic prosperity and environmental preservation.

Change pattern and stability of oasisization land in Mu Us Sandy Land.

Understanding land structure change and stability in the process of oasisization is particularly important for the desertification control in sandy land. Based on land use data of eight periods from 1980 to 2020, we extracted the spatial distribution information of oasis land in Mu Us Sandy Land, and analyzed the spatio-temporal variations of land transformation patterns and stability of oasis land with overlay analysis and grid analysis. The results showed that desertification in the Mu Us Sandy Land had reversed, with a significant process of oasis. The area of forest and grassland increased from 10.2% in 1980 to 73.7% in 2020, while the area of oasisization land increased from 32500 km2 in 1980 to 33900 km2 in 2020. The area of extremely severe, severe, and moderate desertification significantly decreased, while the area of non-desertification and mild desertification obviously increased. The four patterns of oasisization land transformation, including stability, fluctuation, expansion, and retreat, which accounted for 78.7%, 12.2%, 6.2%, and 2.9% of the oasisization land area in 2020, respectively. The oasisization land with low change intensity (the cumulative change intensity less than 0.12) in the Mu Us Sandy Land accounted for 82.7% of the total oasisization area, and the oasisization land in the sandy land was generally stable. Zoning management strategies should be applied according to the stability of sand belt and transformation pattern of oasisization land to achieve the goal of efficient system management and improvement, including eliminating sand hazards at desertification expansion areas with strong wind and sand activities, consolidating sand resources at oasisization areas where ecologically fragile desertification was frequent, and sustainably managing and utilizing sand resources at stable expansion of oases in forest- and grass-rich oasisization areas.

Examining the transformation of postindustrial land in reversing the lack of urban vitality: A paradigm spanning top-down and bottom-up approaches in urban planning studies

A distinct rise of global interest in the role of cultural and creative industries in post-industrial urban development calls for the transformation of our industrial heritage into creative clusters. Despite many factories being removed in deindustrialization, some enterprises still preserve and reuse the former industrial lands. However, the inconclusive judgments on the performances of creative clusters call for an in-depth examination of the underlying mechanism of transforming dilapidated urban industrial spaces. In addition, few empirical studies have revealed the commonalities and differences of market entities employing both the top-down and bottom-up approaches during the redevelopment.In this article, a multilevel transformation, and the consequent spatial performance in three postindustrial lands in Beijing have been examined based on big data analysis, field observation and in-depth interviews. We reached three conclusions. First, in addition to the angle of participatory planning, the deep exploration of specific market entities as an intermediate joint among different parties in protecting and reusing the postindustrial lands uncovers a distinct perspective of urban revitalization. Second, the finding of the enterprises' role in mitigating the conflicts between bottom-up and top-down approaches further testifies to a less-dichotomous perspective in urban regeneration studies. Last, though the examination of the multilevel transformation mechanism reflecting the difference between state and nonstate enterprises in property-led management, a generic paradigm behind the trend of relying on enterprises in revitalizing the large-scale postindustrial lands is revealed.

Islamic Law in the Rule of Sadd Adz-Dzari'ah on the Transfer of Agricultural Land Function to Housing in Grobogan

This research provides an in-depth exploration of Islamic legal aspects related to the conversion of agricultural land into residential areas, with a focus on the principle of Sadd Adz-Dzari'ah. This principle serves as the primary foundation for the research, playing a crucial role in regulating the land transformation process and establishing legal boundaries that must be adhered to. Through a case study conducted in the Grobogan Regency, this research aims to evaluate the application of the Sadd Adz-Dzari’ah principle in the context of agricultural land conversion. The research methodology employs a qualitative approach, utilizing in-depth interviews and document analysis. The collected data is analyzed using content analysis techniques to identify patterns and key themes related to the implementation of the Sadd Adz-Dzari’ah principle in land conversion. The main objectives of this study include gaining a profound understanding of the principle, evaluating its implementation in the conversion of agricultural land to residential areas in Grobogan Regency, analyzing the social, economic, and environmental impacts of the land-use changes, and presenting policy recommendations to enhance justice and sustainability, considering Islamic values. The research found that Islam with its sadd adz-dzariyat concept does not prohibit the conversion of agricultural land into housing as long as it provides maslahat for the community and is carried out based on existing statutory provisions and instead encourages the utilization of agricultural land for various purposes so that the land is not neglected and eventually dies without being utilized. Thus, this research is expected to significantly contribute to understanding the relevance and implementation of the Sadd Adz-Dzari’ah principle in the context of changing land use in rural communities. It also aims to provide a foundation for better policies aligned with Islamic values.