Because of the cultural and political nature of contemporary human waste, Metabolic rifts in waste disposal become more delayed in time, more widespread in space, and less visible in process, more entropy, which produced many kinds of injustice and worsen the existing ecological crisis. Black Soldier Fly (Hermetia illucens L.) is a kind of insect that can process organic wastes such as food waste and livestock manure without secondary pollution, and produce high-quality organic fertilizers and animal protein which can improve soil quality and substitute imported resources. As a non-human agent, Black Soldier Fly plays an important role in organic waste treatment, entropy thrift and balance of nature maintenance, and also has high value in resource utilization of organic waste. The promotion of Black Soldier Fly biotechnology to treat organic waste can not only repair the injustice resulted from current waste disposal methods from the dimensions of time, space, ethnic group and species, and also repair multiple Metabolic rifts in knowledge and emotion. The (re) discovery of non-human ecological citizens such as Black Soldier Fly tells us that the nature has great power to repair itself, but it requires human scientific discovery, technological collaboration, and reorganizing of human lifestyle.

A comprehensive study of the movement trajectory and core driving factors of movement of center of gravity of Chinese-style modernization in the Yangtze River Economic Belt bears significant implications for optimizing resource allocation among provinces within the Belt in material and spiritual civilization construction driven by technological innovation. This endeavor not only facilitates the establishment of relations of production compatible with the new quality productive forces, thus providing robust support for further productivity development, but also promotes the high-quality development of the Yangtze River Economic Belt, injecting new vitality into regional economic prosperity and stability. Guided by the five characteristics of Chinese-style modernization and adhering to principles of scientific rigor, rationality, and foresight, a comprehensive evaluation index system for Chinese-style modernization in the Yangtze River Economic Belt has been constructed. Utilizing entropy method and first-order autoregressive model prediction, the comprehensive evaluation index of Chinese-style modernization in the Yangtze River Economic Belt for the period 2005 to 2035 has been statistically measured. Building upon this foundation, a profound analysis of the spatial evolution trends of Chinese-style modernization in the Yangtze River Economic Belt has been conducted using an improved Jenks natural breaks classification method and direction distribution method. Furthermore, employing a panel data spatial Durbin model with fixed effects, the core driving factors influencing the movement of center of gravity of Chinese-style modernization in the Yangtze River Economic Belt have been identified. The main conclusions drawn are: 1. Chinese-style modernization in the Yangtze River Economic Belt exhibits a gradient decline in spatial pattern from upstream to downstream; 2. During the study period, the movement of center of gravity of Chinese-style modernization in the Yangtze River Economic Belt has moved from the northeast direction towards the southwest, with coordinated development of material and spiritual civilization being the core driving factor for this movement. These findings hold significant theoretical value and practical implications for the tailored advancement of Chinese-style modernization in the provinces within the Yangtze River Economic Belt.

The geographical thoughts provide a solid theoretical support for the integration of the Carbon Peaking and Carbon Neutrality Goals education into the high school geography teaching. The connotation and realization path of Carbon Peaking and Carbon Neutrality Goals profoundly reflect the core concepts of geography, such as the coupling thought of geographical pattern and process, the holistic thought, the scale thought, and the man-land relationship. Based on the strong alignment between these two areas, this paper explores strategies for integrating geographical thought into high school geography teaching on Carbon Peaking and Carbon Neutrality Goals. The aim is to leverage the strengths of geographical thought to advance the realization of the Carbon Peaking and Carbon Neutrality Goals, cultivate students' awareness of Carbon Peaking and Carbon Neutrality Goals and lay the groundwork for addressing climate change and achieving sustainable development.

The social integration of the floating population has emerged as a central issue in the context of China's new urbanization. Urban villages, as a primary type of migrant settlement, exert complex influences on migrants' integration experiences. However, the mechanisms through which residential conditions in urban villages affect social integration remain underexplored. Moreover, existing studies predominantly emphasize local integration processes, often overlooking the role of trans-regional interactions. Drawing on original survey data collected in Guangzhou, this study introduces a social capital perspective and develops a theoretical framework linking urban village residence-social capital–social integration. A moderated mediation model is employed to systematically examine: (1) the direct effects of residing in urban villages on social integration; (2) the mediating role of social capital, including relational networks, trust, and reciprocity norms; and (3) the moderating influence of return migration frequency. The findings indicate that: (1) living in urban villages significantly lowers the level of social integration among the floating population, reaffirming the spatial segregation effect; (2) social capital serves as a key mediating mechanism, with relationship networks, trust, and reciprocity acting as distinct transmission pathways; and (3) a higher frequency of returning to one's hometown mitigates the adverse effects of urban village residence on both social capital and social integration, by providing emotional, social, and material support from origin communities. This reveals the moderating function of cross-regional social ties in the integration process. This study advances current understandings of how urban village residential environments influence migrant integration, while extending the application of social capital theory within migration studies. It further highlights the potential of urban villages as spaces for social capital reconstruction and emphasizes the importance of migrants' sustained linkages between their hometowns and host cities. These insights contribute to promoting more inclusive and human-centered urbanization strategies.

Flood resilience reflects the comprehensive response ability of communities and regions in the face of flood disasters. With the acceleration of global climate change and urbanization, the risk of flood disasters is increasing. In this context, it is of great significance to carry out the assessment of flood resilience. In this paper, taking Guangdong Province in 2020 as an example, the evaluation index of flood resilience is constructed based on PSR model. Using Game Theory to combine subjective and objective weights, TOPSIS method is used to evaluate the flood resilience of 21 prefecture level cities in Guangdong Province, and its spatial characteristics and obstacle factors are analyzed. The results show that the level of flood resilience of most cities in Guangdong Province is not high, and there is a gap between different cities. On the whole, the level of flood resilience of cities in the Pearl River Delta is higher than that of other cities; Spatially, the level of flood resilience shows a spatial pattern with Guangzhou as the center, high in the South and low in the East, West and North, and there is a significant level of spatial aggregation; The main obstacle factors affecting flood resilience are: medical conditions, risk response ability and communication ability. The research results of this paper can provide the corresponding theoretical basis for the construction and management of urban flood resilience.

Since its publication at the end of 1960s, Hardin's theory of "The Tragedy of the Commons" has solicited a lot of criticisms. Some scholars pinpoint that a lot of indigenous people hold their traditions and practices to respond to the overuse of natural resources. In recent years, discussion on the concept of "commoning" has emerged in political ecology, as scholars expand the meaning of "commoning" from a narrow framework of resource management to the broader issue of exploring an anti-capitalist space. As a word, "commoning" emphasizes the process of "value struggle", in which "common value" transcends commodity value. However, some western scholars lay hope on the community, a third way between state and market, as a site of "commoning", but pay little attention to state-led practices of "commoning". In Inner Mongolia, after the implementation of the "grassland and livestock double-contracted responsibility" policy, pastoralists had to endure the "the tragedy of the private" that featured the degradation of pastures and rise of production expenses. Now, several Gachas started to establish collective economy. This paper explores the two cases in which party branch took the lead to set up cooperatives in Xilingol League. Situated in a historical context of "collectivization-decollectivization-recollectivization", the two cases reveal how new collective economies expand ecological and social commons to help pastoralists achieve common prosperity. The "commoning" practices in China emphasize how government can play a key role leading to ecological "holistic productivity" and common economic prosperity, offering unique experience to the management of "commons" for the Global South.

Energy is the foundation and driving force of human civilization's progress and is related to human survival and development. It is of great importance to promote economic and social development and enhance people's well-being. Household energy consumption has important contributions to reducing energy consumption and improving the environment, and its spatial heterogeneity is particularly significant, but traditional methods have limited spatial analysis. The introduction of spatial econometric methods has brought a new research perspective to this field, enabling a more accurate understanding of the spatial heterogeneity of household energy consumption and its impacts and helping to formulate energy-related policies from a geographical perspective. This paper uses the CiteSpace software and traditional literature research methods to systematically review and critique the research on household energy consumption based on spatial econometric methods. First, a literature co-citation analysis of research hotspots shows that in recent years, carbon emissions, energy consumption, energy demand, and urban and rural areas are the research hotspots for household energy consumption. Second, the study found that scholars have gradually shifted from macro-scale analysis to micro-and meso-level discussions involving village surveys, residential family behavior, and cultural characteristics. Third, the research progress was analyzed from the perspectives of the spatial pattern and differences in household energy consumption, the changes in household energy consumption and their influencing factors, and policy responses and environmental effects. Finally, the paper looks forward to the theoretical framework of China's household energy consumption based on spatial econometric methods, policy evaluation energy conservation and emission reduction, and interdisciplinary integrated research from the perspectives of geography, spatial econometrics, economics, and other disciplines.

From a long-term perspective, the impact of transport development on regional economic growth should distinguish between fundamental and direct causes. This paper proposes that the induced spatial changes in economic activities are one of the fundamental reasons why transport development affects regional economic growth. The spatial changes in economic activities induced by transport development manifest as two interrelated processes: the expansion and deepening of economic activity spaces. These changes influence regional economic growth through scope effects, competition effects, and innovation effects. By selecting the average passenger travel distance as a variable to describe the spatial changes in economic activities, and using iterative GMM estimation, spatial lag models, and spatial GMM estimation methods, the analysis based on provincial panel data from China shows that the output elasticity of the average passenger travel distance on per capita GDP ranges between 0.08 and 0.12. This indicates that transport development positively promotes regional economic growth by expanding the space of economic activities. This conclusion provides new insights for a deeper understanding and utilization of the role of transport development in regional economic growth.

Political ecology is an interdisciplinary theoretical paradigm that emerged in the 1970s‒1980s, aiming to analyze power relations in environmental issues and uncover the underlying injustices and inequalities. This paper systematically elucidates the theoretical connotation of political ecology and constructs its theoretical profile through three dimensions: ideological origins, theoretical purports, and value orientation. The escalating environmental crisis has exposed the theoretical and practical limitations of traditional "human-excluded" ecology, giving rise to "human-included" or "political" ecology. The critiques of Malthusian population theory by Marx and Engels played a significant role in the formation of political ecology. Political ecology can also be regarded as an "expanded" ecology and a "specialized" political economy. Theoretically, political ecology focuses on power dynamics in environmental issues, employs cross-scale analytical methods, emphasizes practice-oriented case studies, and engages with discourse analysis or deconstruction of dominant narratives In terms of value orientation, political ecology fundamentally seeks to expose injustices and inequalities in environmental problems. From the perspective of its intellectual character, political ecology combines the deconstructive function of an "axe" with the constructive potential of a "seed", striving to advance fairness, justice, and sustainable development in environmental governance.

Political ecology emerged in the 1970s and has evolved in response to the intensifying global ecological crisis. Over the past five decades, it has become a vital theoretical framework and practical tool for understanding and addressing global environmental challenges. Unlike the more mainstream Anglophone tradition, German political ecology has developed along a distinct intellectual trajectory shaped by different theoretical traditions, social contexts, and modes of public engagement. These factors have led to unique methodological approaches, analytical perspectives, and research agendas. This paper reviews key literature in German-language political ecology, explores its distinctive contributions to the broader field of political ecology, and highlights existing limitations, aiming to offer new theoretical insights for future research.

编者按：亚历山大·墨菲（Alexander Murphy）是俄勒冈大学地理学荣休教授，以其在政治、文化与环境地理学领域的深刻洞察力享誉国际学界。2025年6月3日，在华南师范大学地理科学学院举办的讲座“流动与互联世界中领土的持久魅力（Territory’s Continuing Allure in a Fluid，Interdependent World）”中，墨菲教授深入剖析了全球化背景下“领土”这一经典概念所展现出的复杂性与持续影响力。本次访谈将延续这一主题，围绕4个核心议题展开：领土的持久吸引力、全球化与领土逻辑的现实案例、亚洲情境下的领土动态，以及对青年学者的研究建议。这场访谈不仅是一次思想的碰撞，也为理解当下的地缘政治热点提供了理论工具和现实观察。

Fengshui ponds, a type of semi-enclosed static water body artificially excavated or modified, hold unique cultural significance in the Lingnan region. Heavy metal contamination in sediments of rural fengshui ponds (water ponds for geomantic purposes) is crucial for ecological security construction. This study focuses on a typical rural Fengshui pond in Guangdong Province, where water quality ecological restoration has been conducted in recent years. To evaluate the effectiveness of ecological restoration, sediment cores and surface samples were systematically collected. Concentrations of heavy metals (Cr, Mn, Co, Cu, Zn, As, Pb) were determined using ICP-MS. The pollution degree, ecological risk, and health risk were comprehensively assessed using the geo-accumulation index (I_geo), potential ecological risk index (RI), and human health risk assessment models, respectively. Pollution sources were explored via Pearson correlation analysis. The results indicated that concentrations of all measured heavy metals in the sediment cores were significantly higher than the continental crust background values, exhibiting an increasing trend from the bottom to the top layer. Significant positive correlations (r>0.500, P<0.001) among Zn, Mn, As, Co, Cu, and Pb suggested a common source. Analysis of surface sediments from designated restoration zones and untreated controls revealed that the average concentrations of Co, Cu, Zn, As, and Pb in the restoration zones significantly decreased over time, indicating that aquatic phytoremediation had effectively reduced the load of these target heavy metals. As and Pb were identified as the primary enriched pollutants, posing the highest ecological risks. Health risk assessment identified Cr, Mn, and As as the main contributing factors, with dermal contact being the dominant exposure pathway. Children faced higher health risks than adults. This study addresses a research gap in the evaluation of remediation effects in small-scale, culturally significant artificial water bodies, providing a scientific basis for using aquatic plant remediation technology to manage heavy metal pollution in Fengshui ponds, control pollution input and accumulation, and mitigate ecological risks

The grain size characteristics of lake sediments serve as a critical proxy for reconstructing sedimentary dynamics and paleoenvironmental changes. However, traditional studies often rely on bulk grain size parameters, which may obscure signals from mixed depositional processes. This study focuses on the multi-modal grain size distribution of sediments from a 49-cm core (SSL core) collected at the center of the Thirty-Six Feet Lake, a small closed lake on Pingtan Island, Fujian Province, China. Using laser granulometry and log-normal distribution modeling, three distinct grain size components were identified: a dominant coarse-grained component (mode sizes of p1: 25~70 μm), a secondary fine-grained component (mode sizes of p2: 5~12 μm), and a minor ultra-fine component (mode sizes of p3: 0.6~1.5 μm). Unlike typical lake-center deposits in larger lakes, where fine-grained components dominate, the SSL core exhibits a "lakeshore-like" depositional pattern, with p1 accounting for 48.6%~70.9% of the total volume. This anomaly is attributed to the lake's small size (2.1 km²), shallow depth (mean 4~5 m), and proximity to the shore (0.37 km from the center), which enhance hydrodynamic intensity at the lake center, enabling coarse particles to be transported via saltation. The p2 component is deposited under weaker hydrodynamics through suspension. By deconvoluting multi-modal grain size components, this study demonstrates that separating depositional signals from mixed processes enhances the accuracy of environmental proxies. The findings underscore the necessity of considering lake morphology and hydrodynamic conditions when interpreting grain size data, particularly for small lakes. This work provides a theoretical framework for optimizing sedimentological proxies in paleoenvironmental reconstructions and highlights the unique sedimentary dynamics of small closed lakes.

Continental red beds serve as crucial archives for paleoclimatic and paleoenvironmental data, facilitating analog studies of ancient environments and planetary geological evolution. Within these deposits, white spots are localized bleached reduction zones that typically appear as grayish-white to gray-green spheroidal, ellipsoidal, or banded structures. In biogeochemistry they preserve signatures of the early deep subsurface biosphere. In addition, their mineralogical and spectral characteristics have potential as indicators in the search for extraterrestrial life. Their genesis has long been debated, involving complex interactions among pore-fluid infiltration, organic matter degradation, and microbial processes. Despite this, the formation mechanism remains a subject of debate, necessitating further quantitative analysis and research. This study employed scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), to conduct a comparative analysis of the elemental and mineralogical compositions of the white patches and surrounding continental red-layer deposits.The XPS results indicate a slightly elevated Fe²⁺/Fe³⁺ ratio (~1.00) within the white spots, implying mildly reducing conditions and partial reduction-mobilization of Fe^3+. Concurrent enrichment of Al is consistent with feldspar alteration and clay mineralization processes. SEM observations reveal widespread carbonate cementation, chloritization, and alteration of Cr-Fe-Ti-bearing heavy minerals within pore spaces and fractures, reflecting the penetration of acidic reducing fluids. These findings suggest that the formation of white spots resulted from coupled interactions between pore fluids and detrital heavy minerals, with microorganisms likely serving as catalytic agents in local reductive bleaching. The study provides mineralogical and redox evidence for understanding reduction-oxidation dynamics and potential subsurface microbial activity in continental sedimentary environments.

As significant source of greenhouse gases, urban river has wide ranges of N₂O and CH₄ emission rates because of various environmental conditions and different monitoring methods. A typical unban river, the Wei River in Xinxiang City, was selected to monitor the emission rates of N₂O and CH₄ at the river water—air interface in spring. Both the floating static chamber method and the diffusion model method were applied to conduct the experiment, and comparison between their results was carried out. The influences of water quality and other environmental factors on the emission rates were also analyzed. The results showed that the Wei River behaved as continued source of N₂O and CH₄, and both the concentrations and the emission rates of N₂O were significantly related to nitrate (P<0.01), ammonia (P<0.01), dissolved organic carbon (P<0.01) and redox potential (P<0.05), and the air temperature and dissolved inorganic carbon were only related to N₂O emission rates (P<0.05). The concentrations of CH₄ were significantly correlated to dissolved organic carbon (P<0.01) and redox potential (P<0.05), while CH₄ emission rates were significantly correlated to water temperature (P<0.01) and redox potential (P<0.01). The average daily emission rates of N₂O and CH₄ obtained by the diffusion model method were 59.15% and 68% of those measured using the floating static chamber method, respectively. Moreover, the emission rates of the gases calculated from the two methods were significantly correlated (P<0.01), demonstrating that the diffusion model method is suitable for shallow and slow urban rivers. The daily average emission rates obtained by the diffusion model method were 59.15% (N₂O) and 68.74% (CH₄) of the static box method, respectively, reflecting that the contribution of CH₄ bubbling emission in the Wei River was low in spring, while N₂O may have a higher bubbling emission flux.

Chronological Study is of Great Significance in Exploring Environmental Changes in the Salawusu River Basin. This study utilized single-grain optically stimulated luminescence (OSL) dating techniques to determine the ages of quartz and potassium feldspar minerals from surface sediment samples collected in the Salawusu River. For the two collected samples, the quartz and potassium feldspar mineral fractions were separated. The equivalent dose (D_e) of the quartz was measured using the single-aliquot regenerative-dose (SAR) procedure. The D_e of the potassium feldspar was measured using the post-infrared infrared stimulated luminescence (pIRIR) procedure with a two-step infrared excitation protocol. The test results indicate that: (1) The quartz OSL signals from the tested samples were very weak, making quartz unsuitable for OSL dating of fluvial sediments from this location. (2) The pIRIR₁₇₀ protocol was applied to measure the D_e of potassium feldspar in the two modern samples (SCH-QT-M01 and LJB-MR-01). Most recycling ratios fell between 0.9 and 1.1, and recuperation was generally less than 10%, indicating the reliability of the measurement procedure. (3) The anomalous fading rates (g-values) for the IRSL₅₀ signals of the two samples were 1.88±0.11 and 1.79±0.17, respectively. The anomalous fading rates for the pIRIR₁₇₀ signals were 0.18 ± 0.07 and 0.19 ± 0.15, respectively, indicating that anomalous fading of the potassium feldspar pIRIR₁₇₀ signal is negligible. (4) The Minimum Age Model (MAM) ages obtained from the potassium feldspar pIRIR₁₇₀ signals for the two river surface sediment samples were 90 ± 20 years and 50±10 years, respectively. This indicates that the surface sediments of the Salawusu River primarily consist of mixed accumulations deposited over the last century by processes including flowing water and wind. Considering the associated errors, these results demonstrate that the single-grain potassium feldspar pIRIR₁₇₀ technique is suitable for dating fluvial sediments in the Salawusu River.