Land Nexus Research Articles

‘100 large fruit trees cut down by ISAF’: land, infrastructure and military violence

This article examines the military violence of land use and infrastructure. The analysis discusses the case of the British Army’s Royal Corps of Engineers in 1860s British Columbia and in Helmand, Afghanistan following the post-2001 invasion. It charts how across British colonial and liberal military projects, military infrastructure activities have mobilised towards the goal of capitalist development. Drawing analytic lines between the Royal Engineers’ activities establishing the settler colony and colonial capitalism in British Columbia and their role in imposing liberal social, political and economic norms in Helmand, the article puts forward an account of why, how and with what effect military violence can include things such as the felling of trees, the issuing of private land title, the use of topsoil for road fill or prohibiting local farmers from growing tall crops near a roadway. The central argument of this article is that we should conceptualise and understand military activities such as these as violence. This analysis develops understandings of violence within scholarship addressing coloniality, liberal war, settler colonialism; and land, territory and infrastructure. Beyond the immediate analysis of specifically military violence, this discussion has broader implications for understanding the nexus of infrastructure, land and violence.

Sectoral Assessment of the Energy, Water, Waste and Land Nexus in the Sustainability of Agricultural Products in Cameroon

To ensure sustainable production and consumption in the agricultural sector, it is necessary to assess the contribution of each element of the nexus in the agricultural production chain. The aim of this study is to make a quantitative and qualitative analysis of the contributions of each element of the energy, water, waste and land nexus to agricultural products. A composite method approach combining aspects based on an input–output model and location quotient (LQ) as well as competitive position is adopted. A database of nexus elements over a period from 2009 to 2018 is used for Cameroon, with ten regions considered. The results show proportions of around 0.42% energy, 67.88% water withdrawal, 11.91% harvested area and 97.81% waste for agricultural products. The geolocation of harvested areas shows that the largest portion is in the far north (1,373,829 ha) and the smallest is in Adamawa (224,038 ha). Maximum production is in the central region (4,334,095 tons) and the minimum is in the Adamawa region (915,841 tons). The central, littoral and west regions are more representative of agricultural products. The analysis of the competitive position of agricultural products contributes to a better orientation of national strategies for agricultural sustainability according to the existing potentials.

How robust are current narratives to deal with the urban energy-water-land nexus?

Current energy, water, and land (EWL) nexus research treats all resources equally, causing bias in complicated nexus studies. To make the analysis robust, we consider resource endowment and significance. Here, we provide a methodological framework where the urban industrial resource nexus strength is constructed and assign weights to resources according to policies, describing resource efficiency and representing it in ternary diagrams to assess the urban industrial nexus innovatively. Results showed that energy drives urban development under all weights, with energy resource efficiency exceeding 60%. From consumption-based accounting, energy continues to dominate most industries under physical weightings but emphasizes the significance of water and land. While, under economic weightings, land supplants energy's dominance in specific sectors. Setting weights helps understand resource interaction, establish synergy based on urban development objectives, and minimize robustness. Our findings provide quantitative evidence for assessing urban resource efficiency to highlight priority sectors for intervention in urban decision-making.

Competing for space? A multi-criteria scenario framework intended to model the energy–biodiversity–land nexus for regional renewable energy planning based on a German case study

BackgroundThe need to balance renewable energy supply with biodiversity conservation has become increasingly urgent in light of current climate, energy, and biodiversity crises. However, the development of wind and solar energy often presents trade-offs such as competing for land use and potentially impacting species and habitats. To address these concerns, ‘priority zones’ for bird and bat species have been proposed as spatial designations for early species protection in the regional planning process. However, there are concerns that the areas suitable for wind and solar energy may be limited further, making it difficult to meet state- and regional-specific spatial targets for renewable energy sites.ResultsTo help decision-makers deal with this challenge, a Multi-Criteria Scenario Framework has been developed and analyzed. It involves a habitat model of priority zones for species conservation and techniques from the intuitive logic scenario planning method. Through a regional case study, various planning criteria were analyzed according to scenarios, such as priority zones for species protection, settlement buffers, and forests. The framework indicates how criteria could be balanced to achieve wind energy spatial targets as well as targets for ground-mounted solar energy with the least possible impact. Results show that compared to other planning criteria, species priority zones had limited competition with spatial wind energy targets. Achieving these targets may require minimal adjustments, such as allowing wind energy in 1–3% of completely protected recreational landscapes. To reconcile land use demands in the energy transition, a balance between ‘green’ protected areas is necessary. Additionally, ground-mounted solar energy could replace some of the wind energy spatial targets while also meeting the overall solar development goals.ConclusionsThe framework provides transparency in assessing trade-offs between multiple objectives and helps quantify the ‘costs’ and ‘benefits’ in renewable energy planning. Adapting more flexible planning methods could help resolve the conflict between wind energy and species protection. Joint analysis of the areas needed for wind and solar energy and determining the optimal energy mix are gaining in importance. However, how the benefits of multi-criteria scenarios can be achieved within the confines of preoccupied and siloed organizations remains an ongoing research topic.

Valuing soil erosion control investments in Nigerian agricultural lands: A hedonic pricing model

The effects of climate change are often writ large in the nexus of water and land. In Nigeria, predominantly rainfed agriculture is confronting the consequences of climate extremes in the form of excessive rainfall, especially in the southern region. Relatedly, the hazard of soil erosion represents one of the most pressing forms of land degradation, thereby threatening agricultural production and farmers’ livelihoods. The objective of this analysis is to estimate the economic value of investing in a climate change adaptation strategy, specifically soil erosion control measures on agricultural lands in Nigeria. The analysis employs a hedonic pricing model, using household-level self-reported land values from the Nigeria Living Standards Measurement Survey, 2015–2016 and 2018–2019. Results indicate that undertaking soil erosion control facilities is heavily capitalized into Nigerian agricultural land values. The estimated marginal implicit price (MIP) for undertaking soil erosion control is approximately 26% of mean land values. This value represents around half the annual nominal median income of a Nigerian agrarian household. The estimated MIP of soil erosion control adoption is positive in areas that experience moderate rainfall. Results are maintained across a variety of robustness checks. Our findings suggest that soil erosion control adoption can be an important source of wealth creation among smallholder farmers who are mainly engaged in subsistence farming. Results support wider adoption of erosion control by landowners in accordance with highly variable weather patterns, and more broadly suggest the need to recognize the long-term gains from climate-smart agriculture (CSA) practices and target investment aid towards sustainable agriculture.

Multidimensional Role of Agrovoltaics in Era of EU Green Deal: Current Status and Analysis of Water–Energy–Food–Land Dependencies

The European Green Deal has set climate and energy targets for 2030 and the goal of achieving net zero greenhouse gas emissions by 2050, while supporting energy independence and economic growth. Following these goals, and as expected, the transition to “green” renewable energy is growing and will be intensified, in the near future. One of the main pillars of this transition, particularly for Mediterranean countries, is solar photovoltaic (PV) power. However, this is the least land-efficient energy source, while it is also highly competitive in food production, since solar parks are often developed in former agricultural areas, thus resulting in the systematic reduction in arable lands. Therefore, in the context of PV energy planning, the protection and preservation of arable lands should be considered a key issue. The emerging technology of agrovoltaics offers a balanced solution for both agricultural and renewable energy development. The sustainable “symbiosis” of food and energy under common lands also supports the specific objective of the post-2020 Common Agricultural Policy, regarding the mitigation of and adaptation to the changing climate, as well as the highly uncertain socio-economic and geopolitical environment. The purpose of this study is twofold, i.e., (a) to identify the state of play of the technologies and energy efficiency measures of agrovoltaics, and (b) to present a comprehensive analysis of their interactions with the water–energy–food–land nexus. As a proof of concept, we consider the plain of Arta, which is a typical agricultural area of Greece, where we employ a parametric analysis to assess key features of agrovoltaic development with respect to energy vs. food production, as well as water saving, as result of reduced evapotranspiration.

The “Department of Human Needs”: Renewable energy and the water–energy–land nexus in Zanzibar

AbstractIn designating its Sustainable Development Goals (SDGs), the United Nations invoked the “water–energy–land (WEL) nexus” to emphasize the interconnections between different policy sectors and accentuate the importance of an integrated approach to human and environmental welfare. Identifying the WEL nexus draws attention to the interplay of technical and moral values, the intersections or overlaps between these values, and the areas where values conflict, tradeoffs happen, and priorities are set or shifted. And within this WEL resource nexus, the development and expansion of renewable energy technologies has the potential to redefine and reorder the balance of values. The archipelago of Zanzibar, a semiautonomous protectorate within the East African nation of Tanzania, is currently making complex energy choices that highlight the significance and fragility of this resource nexus and the role of renewable energy in reshaping it. In this article, I draw on ethnographic research in peri‐urban Zanzibari communities to consider how the WEL nexus in Zanzibar is generated by and generative of complex gradations of value and to explore how the development of renewable energy technologies, particularly solar technology, is both entrenching and transforming the linkages between energy, water, and land in Zanzibar.

The Function of Money in Water–Energy–Food and Land Nexus

The water–energy–food (WEF) and land nexus is a basic element of prosperity. However, the elements of WEF are not equally distributed, and the dynamics of trading drives the distribution of goods. Money controls the trading, but money is just a convention and not a stable measure. Therefore, we have used the data of gross domestic product (GDP) and the price of electricity of each country in order to convert money to stable energy units. To evaluate the role of money in the WEF nexus, we also convert all the elements of the nexus, in energy units. In addition, we observe that land is the base of WEF and is positively correlated with all of its elements. However, we find that even the richest countries are facing critical deficits in WEF. Adding the money (GDP in energy units) to the WEF nexus, the balance becomes positive and we conclude that trading is necessary for both survival and prosperity. This may be obvious, but at present, global geopolitical conflicts which use economic sanctions as a tool transform the global balance of the WEF nexus, putting the global prosperity in jeopardy.

Gender and Water-Energy-Food Nexus in the Rural Highlands of Ethiopia: Where Are the Trade-Offs?

The introduction of modern bioenergy alternatives is promoted to address water–energy–food (WEF) security in the rural highlands of Ethiopia. While the role of women in WEF security is an essential component of these challenges, gender dimensions remain invisible in the nexus debate. This study explores the impact of gender-specific roles between female- and male-headed households on the nexus resources in the rural highlands of Ethiopia using an agent-based modeling approach. This includes capturing the gender-specific responses to modern bioenergy interventions to address current energy crises that may reduce or enhance synergies among nexus resources and whether the introduction of modern bioenergy technology would improve the quality of life for both men and women. Using the participatory gendered mental model of the food–energy–land nexus, a base ABM was developed to simulate the predicted effects under scenarios of population growth and labor reallocation. Initial simulation results show that there is low adoption of alternative bioenergy (i.e., biogas digesters), and the majority remain dependent on traditional energy sources (e.g., fuel wood and animal dung), suggesting further land degradation. Female-headed households that adopt biogas increase their burden of collecting water needed for the operation. Reallocation of labor from crop production to fuelwood collection would result in the reduction of crop yields. It is expected that male-headed households have better crop yields than female counterparts due to gender-specific roles. However, by shifting 10% of labor allocated from energy collection to crop production, yields (i.e., teff and wheat) produced by female-headed households would be comparable to their male counterparts, enhancing their food security. However, the reduced workloads for women resulting from the adoption of biogas digesters will not necessarily enhance their quality of life. This study suggests that trade-offs may arise between efficiency (in resource use) and social equity, which deserve to be further analyzed.

Water-Land-Food Nexus for Sustainable Agricultural Development in Main Grain-Producing Areas of North China Plain.

Stable and sustainable food production is an important guarantee for national security and social stability. The uneven distribution of cultivated land and water resources will threaten national food security. In this study, we adopt the Gini coefficient and water-land matching coefficient for exploring the water-land nexus in the main grain-producing areas of North China Plain (NCP) from 2000 to 2020. The water-land-food nexus considering grain crop production structure is further explored from spatial and temporal multi-scales. The results show the following: (1) The Gini coefficient presents an increasing trend in the NCP, indicating an increasing imbalance in the water-land matching degree among inter-regions. (2) There are significant differences in the WL nexus and WLF nexus among regions, showing a spatial pattern of "worse in the north and better in the south". (3) The cities which belonged to the low WL-low WLF and high WL-low WLF should be considered as key targets when formulating policies. (4) Adjusting the wheat-maize biannual system, optimizing the grain cultivation structure, promoting semi-dryland farming, and developing low water-consuming and high-yielding crop varieties are essential measures for these regions. The research results provide significant reference for the optimal management and sustainable agricultural development of agricultural land and water resources in NCP.

Challenges and opportunities of knowledge co-creation for the water-energy-land nexus

The pressure on natural resources including water, energy and land is continuously growing through changes in climate and land use. Representatives of academia, industry, governments and society need to join forces in order to develop new pathways towards sustainable natural resource use and management. Such pathways start from the basic idea that natural resources are finite and interlinked and that human activities can affect these resources and links, with partly irreversible effects. We combine the water–energy–land nexus and the climate services concept and present a cross-sectoral approach of knowledge co-creation to inform natural resource use and management. The approach is tested in three case studies across Europe that face different challenges resulting from climate and socio-economic change. We present the process, applied methods and major results of knowledge co-creation for sustainable natural resource use and management, and we reflect on the challenges and opportunities from engaging multiple stakeholders. Even if a comprehensive, cross-sectoral approach encourages embedding the water–energy–land nexus into climate services and allows the development of pathways towards sustainable natural resource use and management, maintaining these achievements and partnerships beyond the lifetime of a research project remains challenging.

Cross-sectoral urban energy–water–land nexus framework within a multiscale economy: The case of Chinese megacities

Energy, water, and land (EWL) are finite, critical, and intertwined resources in urban system, and the resource management of EWL plays a key part in urban sustainable development. Previous studies lacked a general framework and a deeply cross-sectoral analysis that simultaneously considered all the sectors within the urban economic system of multiple resources. This study introduced an urban ternary multidimensional nexus (UTMDN) framework for modelling complex urban EWL nexus, connecting in- and trans-boundary interactions by the environmental extended multiscale input–output (EE-MSIO) model. We applied this approach to a comparative study of four Chinese megacities in different economic sectors. Results showed that the top-consuming sectors of EWL were heterogeneous and the impacts of urban consumption-oriented behaviour extended beyond the urban boundaries. In particular, the sectors of construction, electricity, gas & water, and others were the main consumption-based energy consumers. The agriculture and food sectors were the major consumption-based water and land consumers. These sectors mostly relied on domestic imports for the four megacities. By contrast, Chongqing's embodied water and land flows in the agriculture sector relied more on local (in-boundary) supply. The obtained results proved that this framework could constitute a solid foundation for assessing the cross-sectoral, in- and trans-boundary EWL nexus of critical sectors centred on cities. These sectoral-based analyses can support industrial restructuring and collaborative management of EWL resources for future urban development.

Threats in Water–Energy–Food–Land Nexus by the 2022 Military and Economic Conflict

The formation of societies is based on the dynamics of spatial clustering, which optimizes economies of scale in the management of the water–energy–food (WEF) nexus. Energy and food are determinant measures of prosperity. Using the WEF nexus as an indicator, we evaluate the social impacts of the current (2022) conflict and in particular the economic sanctions on Russia. As Russia and Ukraine are major global suppliers of energy sources, food, and fertilizers, new threats arise by their limitations and the rally of prices. By analyzing related data, we show the dramatic effects on society, and we note that cities, which depend on a wider area for energy and food supplies, are extremely vulnerable. This problem was substantially worsened due to the large-scale urbanization in recent decades, which increased the distance from food sources. We conjecture that the Western elites’ decision to sanction Russia dramatically transformed the global WEF equilibrium, which could probably lead to the collapse of social cohesion.

Drought-Induced Challenges and Different Responses by Smallholder and Semicommercial Livestock Farmers in Semiarid Limpopo, South Africa—An Indicator-Based Assessment

Increased seasonal climatic variability is a major contributor to uncertainty in livestock-based livelihoods across Southern Africa. Erratic rainfall patterns and prolonged droughts have resulted in the region being identified as a climate ‘vulnerability hotspot’. Based on fieldwork conducted in the dry seasons in a semiarid region of South Africa, we present an interdisciplinary approach to assess the differential effects of drought on two types of livestock systems. Organic matter digestibility, faecal crude protein, C/N ratio and the natural abundance of faecal 15N and 13C isotopes were used as ecophysiological feed quality indicators between smallholder and semicommercial systems. These measurements were complemented with qualitative surveys. In a novel approach, we tested the potential of the isotopic signature to predict feed quality and present a significant relationship between organic matter digestibility and isotopic ratios. Indicators assessed smallholder feed quality to be significantly higher than semicommercial feed. However, animals from semicommercial farms were in significantly better condition than those from smallholding farms. Differential access to feed resources suggests that a complex feed–water–land nexus pushes smallholders into high reliance on off-farm supplements to bridge drought-induced feed deficits. The paper thus offers a contribution to intersectional work on drought effects on livestock keepers of semiarid South Africa and illustrates how ecophysiological indicators mirror socioeconomic differences.

A politics of reminding: Khoisan resurgence and environmental justice in South Africa’s Sarah Baartman district

ABSTRACT In the wake of colonial fragmentation and genocide, Indigenous ‘Khoisan resurgence’ movements in South Africa have mobilised subversive forms of authenticity, including heteroglossic and inventive translanguaging from fragments of Khoekhoegowab. In our analysis of video ethnographic texts produced in collaboration with the Gamtkwa Khoisan Council (GKC) in Hankey, the birthplace of Sarah Baartman, we explore how memory, language politics, and environmental activism are interwoven in acts of linguistic citizenship that constitute the ‘rememorying’ of a history that has remained persistently obscured. We argue that rememorying advances a politics of reminding which counters the Rainbow Nation’s institutionalised politics of forgetting, as well as anthropological accounts that consider Indigenous activist invocations of history as merely ‘therapeutic’. Through an engagement with the memory activism of the GKC, we identify how reconstructing word-histories, reliving historical traumas, retelling histories of sites of memory, seeing oneself mirrored in one’s ancestors, and the nexus of land, memory, and time form the basis for shared meaning-making, bringing impetus, focus, and intergenerational continuity to struggles for environmental and land justice.

The Spatial and Temporal Assessment of the Water–Land Nexus in a Changing Environment: The Huang-Huai-Hai River Basin (China)

In addition to agriculture, the water–land nexus (WLN) also profoundly affects the sustainable development of industry and residents’ lives. However, little research has been designed to assess the water–land nexus from the perspective of industry development and people’s quality of life. In the current paper, Wi, a regional industrial water–land nexus matching index, and Wd, a matching index of the domestic water–land nexus, were proposed for evaluating the water–land nexus from the industry development and quality of life perspectives separately in the current paper. Furthermore, climate change and human activities have significant impacts on the water–land nexus. The WLNs were assessed spatially and temporally for the first time based on these two indexes in 128 municipalities in the Huang-Huai-Hai River Basin of China from 1951 to 2017 to analyze the impacts of the changing environment on them. The impact of changing environment was explored based on changes of some climate factors and land use. The value of Wi are higher in the eastern and southern cities than the western and northern cities, while Zhenjiang city in Jiangsu Province has the highest Wi. For Wd, there are two low Wd zones across the basin, while the minimum values occurred in Linxia Hui Autonomous Region (Wd = 35.34 mm). Wi and Wd in most cities in the basin showed a significant downward trend, and some cities in the southwest of the basin have the fastest-decreasing of Wd. Wt and Wa were also calculated to assess the total and agricultural water–land nexus separately based on existing research. The Wt for the Huang-Huai-Hai River Basin gradually increases from northwest to southeast, and its spatial distribution characteristics are similar to precipitation in the river basin. In addition, the government should simultaneously implement water transfer plans to reduce the agricultural water pressure in Ningxia and Gansu provinces. Dynamic driving factors of change of the four assessment indexes (Wt, Wa, Wi, Wd) are briefly analyzed in the end of the paper.

Climate services for sustainable resource management: The water—energy—land nexus in the Tărlung river basin (Romania)

Decision-makers need tailored information regarding future climate, land use, forest management and societal scenarios for sustainable watershed management. Such information can be attained by integrating the water-energy-land nexus approach with climate services. To support decision-makers from Brașov metropolitan area (Romania), we co-developed land use, forest management and societal scenarios and analysed their impact on the water-energy-land nexus under climate change. We applied the Soil and Water Assessment Tool (SWAT) to the Săcele reservoir from the Tărlung river basin in order to spot the interrelations between nexus components under different climate and societal scenarios. In particular, we applied four bias-corrected GCM & RCM model combinations for two climate scenarios RCP4.5 and RCP8.5, nine land use and forest management scenarios, and twelve societal scenarios. Modelling results were analysed between 2020 and 2099. The results for the study area indicate that the projected average annual precipitation is close to historical averages in most climate scenarios explored, while the projected average annual temperature is increasing. Furthermore, the analysed data suggest an increase in severe dry intervals from approximately 6% (for the period 1961–2013) to 12% by the end of the 21st century, indicating that precipitation variability may change considerably. The SWAT model results show no significant changes in the water flow under different forest management scenarios. In contrast, model results for scenarios that imply forests' clearcutting and their replacement with pastures or meadows indicate that water quality is affected by increased sediment flow. Regarding the number of months with water scarcity in the Săcele reservoir (i.e. water demand exceeds water supply), we found an increase from 0.4 months in 2020 to 1.5 months in 2099. The model results also revealed that climate change significantly influences the water supply in the reservoir. To conclude, the regional stakeholders highly value the model results for the co-developed scenarios, which have been already used to promote sustainable resource management.

Community Innovation and Regional Sustainability: A Case Study of Environmental Health Education in Siaogang Hospital, Kaohsiung Medical University

Kaohsiung Municipal Siaogang Hospital is located in southern Kaohsiung City, a major nexus of land, sea, and air transportation. Thus, the hospital is on the frontlines of strengthening Kaohsiung International Airport's epidemic prevention measures and preventing the spread of COVID-19 and other epidemic viruses to Taiwan from other countries. Kaohsiung Medical University integrates on-campus academic research, teaching services, and medical institution resources and has long promoted community care plans in conjunction with the public sector. A disused public sector space repurposed by the university into a distinctive day care center is being further used as a service-learning platform linking medical education to communities, allowing university students to enter the community and apply what they have learned to improve quality of life, community health, and well-being. "Happy Kaohsiung Healthy City-Siaogang District Environmental Education and Health Promotion Sustainable Development Plan", which responds to the issues and needs of air pollution and health promotion in the city's Siaogang District, designates Kaohsiung Municipal Siaogang Hospital as the core base of local practice, connecting multidisciplinary schools and units as well as cross-regional resources to promote practical programs such as air quality talent education, environmental testing and research, campus health education and publicity, air pollution syllabus, and community care and care, fulfilling the university's social responsibilities.

Advances and Challenges in the Water Footprint Assessment Research Field: Towards a More Integrated Understanding of the Water–Energy–Food–Land Nexus in a Changing Climate

Today, human activities are highly dependent on fossil fuels and industrialized forms of agriculture and have reached a level that could damage the Earth’s systems [...]

Land Grabbing and Jatropha in India: An Analysis of ‘Hyped’ Discourse on the Subject

In the early 2000s, powerful narratives (re-)emerged around the food–fuel–land nexus, which, combined with the financial, food, and fuel crises of 2007–08, sparked new concerns about the finiteness of our resources and triggered, as well as partially justified, the then following land rush. Around the same time, a hyped debate also developed around biofuels as a potential fix to some of the global scarcity problems in which jatropha held a particularly prominent position as a new miracle crop. This study examines the concurrence of jatropha and the land grabbing hype in India, the leading promotor of the plant globally, and asks what effect the global land grab discourse had on actual jatropha investments in the country. To do so, an extensive literature review, discourse analysis, and qualitative survey were conducted, with a specific focus on jatropha investors. The study found that both hyped discourses have impacted investor decisions, but the impact varied depending on the types of company. This study adds a yet underrepresented investor perspective to the global land grabbing discourse and highlights a need to also consider the role of small and medium enterprises in land grabbing processes.