Environmental Values Research Articles

Women's preferences for associated species in cocoa-based agroforestry systems and their uses in the Kokumbo Sub-Prefecture (Côte d'Ivoire)

Due to their multiple uses, species associated with cocoa trees have an important socio-economic and environmental value for women in Central Côte d'Ivoire. Based on surveys followed by an inventory carried out in six villages of the Sous-Préfecture of Kokumbo, this study assesses women's preference for cocoa companion species using the pebble distribution method, in order to quantify the value accorded by the latter according to their various uses. A total of 79 plant species were identified, divided into 67 genera and 31 families. These species associated with cocoa trees have an explicit value for women, as they meet the vital needs of farming households, such as self-consumption (43.32%), sale (35.21%), shade (7.53%), timber and firewood (7.15%). Using the pebble distribution method, we have highlighted the most important species associated with cocoa trees for women. For self-consumption, we have Dioscorea spp with 29.47% and Musa paradisiaca (18%). They attribute a high commercial value to Musa paradisiaca (25%) and Persea americana (21%). They also prefer species that provide good shade for cocoa trees, such as Ceiba pentandra (19.74%) and Milicia excelsa (11.30%). Those that provide good firewood and energy, such as Milicia excelsa (28%) and Albizia zygia (19%). Domestication of the tree and shrub species most appreciated by farmers could stimulate their regeneration. The marketing of products from cocoa agroforests could enable women to acquire financial autonomy in order to improve the living conditions of their households in general and those of their children in particular.

Network Integration as a Tool for Sustainable Business Development

Business enterprises are required to adopt new economic models and business strategies in line with global trends such as the green agenda, the shortening of innovation cycles, digitalization (networking platforms) and socio-economic security. The models of network integrations (clusters, industrial symbioses, innovation ecosystems, etc.) are developing faster than other business models. Networking allows businesses to synergetically, based on the principles of collaboration, trust and self-organization, increase intellectual, innovative, social, and environmental values, which leads to economic growth and sustainable development. Through networking integration, the business performance of all participants in multi-company projects can be improved, regardless of their size and activities. The purpose of this study is to develop a methodological framework for assessing the synergistic effect and the level of collaborative maturity of participants in network industrial integration. This paper provides a comprehensive analysis and evaluation of network business integration efficiency. The authors’ methodology is based on the AHP hierarchy method, expert evaluation and Harrington’s level of desirability. The methodology is validated on Russian industrial integrations: industrial cluster of Nizhny Novgorod region; pipeline valve manufacturing cluster; South Ural industrial cluster producing spare parts and assembly units for roadbuilding, construction and agricultural vehicles. The results show that the level of collaborative maturity of business partners and the synergies from network integration effect the sustainability of business development. Recommendations for businesses are provided to improve their network integration and collaborative maturity. Furthermore, the findings allow the authors to define directions for further research, considering the interests of the business community, regional authorities, and financial institutions, and provide a framework for researchers to investigate the link between industrial network integration and economic growth.

Menumbuhkan Kreativitas dan Cinta Lingkungan Anak Pekerja Migran di Sanggar Bimbingan Kepong Malaysia dengan Proyek Pancasila Berbasis Zero Waste

This service aims to foster creativity and love for the environment in the children of migrant workers at the Kepong Guidance Center, Kuala Lumpur, through the Zero Waste-Based Pancasila Project. Children of migrant workers often face a variety of difficulties, such as lack of access to essential services and difficult economic conditions. This program provides formal and value-based education of Pancasila, which is integrated with the concept of zero waste. Through lecture and participatory methods, children are taught to utilize waste, especially paper, into products of economic value. This activity not only improves creative and critical thinking skills, but also in stills environmental sustainability values. The results of the program show the active participation and high enthusiasm of the children in the educational and practical process. In addition to increasing creativity, the program also strengthens children's awareness of the importance of an eco-friendly lifestyle and social responsibility. This program makes a positive contribution to improving the quality of life and future opportunities of migrant workers' children.

Redefining Excellence: Exploring the Influence of Social Comparison on Green Product Evaluation

ABSTRACTIn recent decades, green consumption has gained considerable attention among academic and business circles. While previous research has shown that green products combine environmental value and status symbols, the role of micro‐social environments has been insufficiently examined in studies exploring the antecedents of green consumption. Social comparison, a central feature of human social life, has been overlooked. Therefore, this research conducted five empirical studies to investigate the impact of social comparison on green product evaluations. We find that upward and downward comparisons positively influence consumers' attitudes, purchase intentions, and actual choices of green products. Notably, feelings of self‐threat mediate this effect in upward comparison situations, while authentic pride mediates this effect in downward comparison situations. Furthermore, the impact of social comparison on green product evaluations is moderated by consumers' self‐monitoring. Specifically, this effect is strengthened for consumers with high self‐monitoring and attenuated for those with low self‐monitoring. These findings offer novel perspectives on green consumption and marketing implications for managers.

Marsh restoration in front of seawalls is an economically justified nature-based solution for coastal protection

A marsh-fronted seawall is a hybrid nature-based coastal protection solution because it attenuates wave energy, reduces erosion, and provides ecosystem services. However, we still have a limited understanding of how to quantify the marsh wave attenuation benefits for economic analysis. Here, we incorporate a prediction of wave attenuation that accounts for species-specific morphology and structural stiffness into a 1-D wave model and validate it with field measurements. Our results show that the wave attenuation varies by a factor of two across different vegetation species. Further, we performed a benefit-cost analysis, in which the economic benefits represent the environmental services value and avoided seawall heightening cost that would otherwise be required to deliver the same overtopping rate without vegetation. We applied the model to a real-world, marsh-fronted seawall design at Juniper Cove, Massachusetts. Although the benefit of marsh-fronted seawalls is sensitive to discount rate, they have benefit-cost ratios greater than one, indicating that it is an economically justified nature-based solution. Further, we found that wave attenuation and benefit-cost ratio are more sensitive to water depth than wave height. Our study demonstrates the importance of considering the coastal protection of marshes and economic benefits in one framework.

Economic, Environmental, and Social Value of Virtual Care in Otolaryngology: Sustainability in Quality Improvement Framework.

Apply the Sustainability in Quality Improvement framework to virtual care for Otolaryngology-Head and Neck Surgery (OHNS) patients to understand the economic, environmental, and social impacts. This project consisted of retrospective analysis of anonymized data from all appointments that took place in three academic ambulatory OHNS clinics (pediatrics, head and neck, and otology/neurotology) from fiscal years of 2021 to 2023. Data were obtained from our institution's Virtual Care Dashboard. The following metrics were calculated: travel costs avoided with virtual appointments (economic value), fuel and carbon emissions avoided with virtual appointments (environmental value), and differences in Ontario Marginalization (ON-Marg) Index scores between patients seen virtually versus in-person (social value). A total of 41,343 visits occurred over the 2-year period (18.1% virtual). Nearly all virtual visits were by telephone (99.6%). The average cost savings per virtual care visit was $87.50, and total cost savings across all 3 clinics was $640,300. Total environmental savings were 82,500 L of fuel and 246.6 metric tons of carbon emissions. There were no statistical differences in monthly average marginalization (ON-Marg) indices in patients seen virtually compared to in-person. Virtual care demonstrated financial and environmental savings for OHNS patients that can accumulate over multiple appointments. No difference in ON-Marg indices between patients assessed virtually versus in-person suggests that virtual care was accessible for patients regardless of social background. Our data suggests that virtual care may be a viable complement for delivering OHNS care that leads to fiscal and environmental savings for patients and ensures equitable access to care.

Values Reflected in First Language Textbooks of Primary Education in West Bengal

Textbooks function as catalysts for societal change, influencing students’ values, beliefs, and cultural awareness from their primary level of education. Textbooks serve as key learning resources for students which significantly influences students’ character development. The creation of textbooks reflecting values is essential, and achieving this goal requires a comprehensive analysis of textbooks. The objectives of the study are focused on examining values are represented in the text and images found within Bengali language textbooks of Primary Education Board, School Education Departments, govt. of West Bengal, India was the publisher of the textbook. A Bengali textbook named “Patabahar” of class IV of the West Bengal Board of Primary Education has been chosen through the purposive sampling technique as a sample in this study. This study used qualitative and documentary research methods through content analysis. The findings demonstrate that social values, moral values, environmental values, and Personal values, emotional values, cultural values are more reflected and spiritual, aesthetic, humanistic, economic, historical, civic, peace, national, cognitive values were minimally reflected across the textbooks. The study results provide a basis for state or national policy changes that promote values-balanced content in educational media and ensure the development and implementation of guidelines that are beneficial to the development of textbook development agencies. Also, helpful for textbook authors and teachers in developing a value-alignment curriculum and creating more inclusive, culturally sensitive, and ethically grounded visual materials

Examining the incentive effects of athlete compensation: a combined analysis using SEM and fsQCA

In the context of competitive sports, the evaluation of compensation incentive effectiveness is key to the optimization of compensation systems for athletes. This study creates a model of the athlete compensation incentive effect from single and multinomial grouping perspectives, combining empirical research (SEM) with fuzzy-set qualitative comparative analysis (fsQCA) based on a sample of 352 validated data. The results lead to two findings. First, athletes’ direct economic compensation, direct non-economic compensation, and indirect non-economic compensation have a significant positive effect on the incentive effect of compensation. Second, that the incentive effect of high compensation has two configurations, namely “economic value” and “economic environmental value.” It seems that the effective combination of compensation factors can enhance the motivation effect in a “different way.”

The concepts of sustainability value and the application of big data in enhancing the ability of sustainability marketing

PurposeWe seek to contribute to the literature by comparing and analyzing the relationship between Australian and Taiwanese students regarding environmental value attitude, action intention and green marketing intention. Specifically, by comparing the green marketing intention of hospitality and tourism (H&T) students in the East with that in the West.Design/methodology/approachA well-designed curriculum examines student thinking and behavior (learn). This study compares and analyzes the value and attitude and the application of big data to green marketing among Taiwanese and Australian university students using the stimulus-organism-response (S-O-R) model. Structural equation modeling (SEM) was used to test the hypotheses in a sample of 633 H&T students in Taiwan (389) and Australia (244).FindingsThis study also shows how the national differences between Australia and Taiwan have interference effects on the relationship between value attitudes and action intentions and between action intentions and the green marketing intention. We also combined the application of big data and related variables and estimated the mediating effect of related variables to evaluate the impact on action intentions and green marketing of big data applications.Practical implicationsThere are significant differences in the sustainable behavior and intentions of H&T higher education students that reflect the educational differences between the East and the West. These different results may be due to a lack of natural resources and the relatively smaller size of Taiwan. With the strengthening of environmental action intention (AI) and green marketing intention (GMI), Taiwanese hospitality and management (H&M) students' sense of crisis increases, and their performance in GMI is slightly higher than that in Australia.Originality/valueThese findings indicate that it is necessary to consider students' ecological concepts, environmental knowledge, environmental value attitude and environmental action intention to improve their intentions to engage in green marketing under the stimulus-organism-response (S-O-R) framework. We also found that environmental knowledge has a mediating effect on the relationship between ecological concepts and environmental value attitude.

Great ape surveys and the implications of long-term monitoring in the Djéké Triangle, Republic of Congo.

Existing protected areas are anchors for conservation. Safeguarding flora and fauna within their peripheral areas is essential to maintaining their integrity and to potential increases to the area under effective conservation. With the decline in tropical forests, initiatives to increase the area of undisturbed forests under strict protection, particularly those neighboring protected areas, is of critical importance. Applied research has informed such land-management decisions for areas surrounding the Nouabalé-Ndoki National Park (NNNP) in Republic of Congo since the park's inception three decades ago. Here, we present results of the first systematic line transect survey of great ape nests conducted in the Djéké Triangle, a 100 km2 unlogged continuous forest in the Kabo Forestry Management Unit adjacent to the NNNP. Distance sampling methods applied along 26 line transects on two different occasions (2016 and 2018, with total effort of 69.4km) provided density estimates of 0.75 (95% confidence interval (CI) 0.52-1.09) and 0.61 (95% CI 0.40-0.92) chimpanzees/km2 and 2.15 (95% CI 1.36-3.40) and 1.19 (95% CI 0.78-1.82) gorillas/km2 for each of the two surveys, respectively. Estimated ape densities were compared to others across the landscape. The findings provide a unique baseline in an area that supports ongoing behavioral research and future gorilla tourism opportunities in the Djéké Triangle. More importantly, results provided empirical evidence of the environmental value and strategic conservation importance supporting inclusion of the Djéké Triangle into the NNNP in 2023. These long-term monitoring results inform best-practice standards and ape tourism certification.

Circular Consumption in Everyday Life: Drawing Insights into the Creation of a Circular City

AbstractAlthough individual consumption is the biggest contributor to cities’ carbon footprints, the link between personal actions and building a circular city remains narrowly researched. Similarly, the implications of the circular economy in individuals’’ everyday lives are not yet well known. This study bridges these research gaps by examining the impacts of circular consumption on urban neighborhood inhabitants’ everyday lives and by considering the relationship between individual consumption and the creation of a circular city. This qualitative research relies on interviews conducted with inhabitants, companies and a school of Tammela neighborhood. Results derived from a directed content analysis suggest that circular consumption is an advisable instrument for living in accordance with environmental values and promotes economic inclusion for individuals. However, circular consumption requires more consumption work from consumers compared to linear consumption. In conclusion, at the city level mainstreaming circular consumption might be achieved with policies aiming at (a) increasing environmental awareness and teaching circular skills and (b) enhancing convenient circular systems of provision to attract people with various values to engage in circular consumption, while considering the amount of consumption work required by the consumer.

Adapting Sustainability Certification Systems for Historic Buildings: A Qualitative Comparative Study in Denmark

Historical buildings are unique assets in any society, embodying cultural significance and architectural heritage. Denmark, with its rich architectural background, has taken steps to preserve these values. As the imperative of sustainability continues to grow, recognizing the social, economic, and environmental values of historic buildings is becoming increasingly important. As an important step towards adapting sustainability certification systems for historic buildings in order to identify and preserve their historical values, this paper aims to conduct a comparative analysis between the GBC and HB (Green Building Council–Historic Building), which has been adapted for historic buildings in Italy and the Danish GBC system (GBC-DK or so-called DGNB-DK). The study is based on a theoretical framework underpinned by a systematic approach utilizing a qualitative comparative analysis (QCA) alongside the triangulation method. This includes a systematic literature review comparing the GBC-DK and GBC-HB systems and an analysis of an actual building renovation project at a municipal hospital in Aarhus, Denmark. The findings indicate a notable absence of criteria and sub-criteria pertaining to the protection of tangible and intangible values in the application of the GBC-DK system. It is justified that in order to improve the sustainability of historic buildings in Denmark, a broader and more in-depth study on the adaptation of the GBC-DK system for historic buildings is needed.

An integrated approach to sustainable mine wastewater treatment: Magnesium recovery with anion exchange membranes

With recent emphasis on sustainable and efficient mineral valorization, novel approaches to treating mineral wastewater in natural settings bring both environmental and economic value. This paper presents the results of an applied research to develop an integrated approach to sustainable wastewater treatment that includes an ion exchange process to recover copper and cobalt from mine wastewater, followed by the membrane recovery of magnesium. The paper investigates magnesium hydroxide crystallization process employing an anion exchange membrane (AEM) cell. This process involves the penetration of OH- ions from the alkaline solution through the AEM to the feed solution in exchange for Cl- ions and precipitation of Mg(OH)2 as solid particles. The wastewater was sampled from different mine waste sources from the copper mine tailings dam in South Australia, all containing significant amounts of critical metals, including magnesium, copper, and cobalt. The results have demonstrated the potential for sustainable magnesium hydroxide recovery methods. The findings suggest that the most influential process parameters for magnesium hydroxide recovery and purity are magnesium concentration in the feed solution and sodium hydroxide to magnesium ratio in the alkaline solution and feed solution, respectively. It was also established that the overall recovery of cobalt, copper and magnesium in a combination of ion exchange and AEM processes was achieved at a level near 100 %. The purity of magnesium hydroxide precipitate was achieved in the range of 90–96.6 % and depends mainly on the presence of impurities in brine.

Elucidating synergistic effects and environmental value enhancement in infrared-Assisted Co-Pyrolysis of coal and polyvinyl chloride

Co-pyrolysis of high-alkali coal and polyvinyl chloride (PVC) through infrared heating is a promising approach for managing escalating PVC waste and converting low-grade coal resources efficiently. The synergistic effects during co-pyrolysis and thermal degradation of PVC were studied through thermogravimetric analysis (TG-FTIR) and spectral analysis. Furthermore, chlorine migration and chemical transformation integral to the process, along with catalytic interactions, were explored through chlorine mass balance assessment, employing X-ray photoelectron spectroscopy and ion chromatography to establish a groundbreaking understanding of these phenomena. The results of products exhibited a trend of initially increasing and then decreasing with increasing temperatures and mixing ratios. The maximum oil yield was 14.62 %, achieving at 600 °C and 20 %. Meanwhile, the content of aromatic hydrocarbons remained high level through the synergistic interaction of Lewis and Brønsted acid sites, nearly exceeding 60 %. The results showed that the Artificial Neural Network model had a high prediction accuracy with an R2 value of 0.99, while the decarboxylation effect dissociated the metal, resulting in an increase in the fixation of inorganic chlorine from 1 % to 66 % and a decrease in the chlorine content in the liquid phase. Innovatively, the study employs an ANN model for predicting the behavior of co-pyrolysis, exemplifying high accuracy in understanding complex thermal conversions of PVC and coal. Notably, the work challenges existing constraints by applying sophisticated analytical methods to elucidate the thermodynamics and kinetics of the co-pyrolysis processes, thereby enhancing the energetic and environmental value of the products.

Vegetation Dynamics Studies Based on Ellenberg and Landolt Indicator Values: A Review

Understanding the dynamics and system of interrelationships between habitats and plant communities is key to making reliable predictions about sustainable land use, biodiversity conservation and the risks of environmental crises. At the same time, assessing the complex of environmental factors that determine the composition, structure and dynamics of plant communities is usually a long, time-consuming and expensive process. In this respect, the assessment of habitats on the basis of the indicator properties of the plants is of great interest. The aim of our study was to carry out a comprehensive review of vegetation dynamics studies based on the Ellenberg and Landolt indicator values in the last five years (2019–2023). We identified their strengths and priority areas for further research, which will contribute to improving the ecological indicator values for studying vegetation dynamics. The analysis of publications was carried out based on the recommendations of PRISMA 2020 and the VOSviewer software(version 1.6.18). The wide geographical range and high reliability of Landolt and Ellenberg indicator values for the study of different plant communities and variations in their dynamics are demonstrated. At the same time, the application of these environmental indicator values has its peculiarities. For example, the Ellenberg indicator values show a wider research geography and are more often used to study the dynamics of forest ecosystems than the Landolt indicator values, which are more often used to study disturbed landscapes and the dynamics of individual species. However, these methods have been used with almost the same frequency for grasslands, wetlands and coastal vegetation. The citation analysis confirmed the high interest in the environmental indicator values and their widespread use in research, but also revealed the weak development of a network of relationships. This suggests that modern researchers are not well aware of, and rarely use, the results of research carried out in recent years, especially if they are based on indicator values other than those used by them. At the same time, a number of unresolved issues are clearly identified, which require additional research and a consolidation of research teams if they are to be addressed more successfully. We hope that the results of this meta-analysis will provide the impetus for further development of the concept of environmental indicators and help researchers to overcome the current questions around applying indicator values in the study of vegetation dynamics, as well as help researchers to understand the strengths of this methodology.

The bibliometric survey of the valuation of environmental and heritage resources

Natural resources are essential for the development of capitalist societies, and for a long time, there was a belief that, due to their abundance and the false notion that they were inexhaustible, the scientific production concerning the limits of their use was neglected. Environmental valuation emerges as a tool to assign economic value to natural resources and ecosystem services, facilitating financial compensation for their degradation and encouraging sustainable practices. This article analyzes the methods of environmental and heritage valuation, focusing on scientific publications between 2012 and 2022, using data from CAPES and BDTD. The research employs keywords to identify and analyze relevant publications, offering a comprehensive overview of techniques and trends in the field.

Design and performance evaluation of a solar-assisted biogas and air-source heat pump hybrid system for radiant heating applications

Energy and environmental crises have become critical challenges, making the efficient use of clean energy a focus of public attention. Although emerging clean energies have high economic and environmental values, these single energy sources are not well-developed. In colder climates, maintaining a stable fermentation temperature can be difficult, leading to the idling of many biogas digesters. Furthermore, despite extensive research on solar-assisted air-source heat pumps, these systems perform poorly in cold climates with low solar irradiance. To address these issues, this study investigates the integration of a solar-assisted biogas and air-source heat pump hybrid heating system (SBHP-HHS) for capillary radiant heating in rural North China, specifically adapted to local conditions. The system aims to utilize the combined benefits of various clean energy sources to improve system reliability in harsh climates. By combining experimental analysis with TRNSYS simulation, the system performance during the heating season in rural northern China was evaluated. Experimental results show that the hybrid system, utilizing the radiant capillary terminal, is capable of maintaining room temperatures above 20 °C, demonstrating its effectiveness. Simulation results show that the air-source heat pump achieves a coefficient of performance (COP) of 4.6. This efficiency level is generally favorable, ensuring stable operation. Additionally, the system achieves a solar-biogas hybrid utilization rate exceeding 75 % and a primary energy-saving rate of 78 %. Economically, the system offers an 8.23-year dynamic payback period and annual cost savings of 3055 CNY. Environmentally, it reduces CO2 emissions by 4263.6 kg annually. This study provides a solid experimental foundation for further research, offering empirical evidence to optimize system performance.

E-commerce and Mobile Application Development in the Sports Industry

In order to achieve user recommendations that best match their current contextual needs, the author proposes a mobile service QoS (Quality of Service) hybrid recommendation model based on sports user situational awareness. Cluster the users and service items covered by mobile users based on their location contextual information according to the classification principle of autonomous systems, forming a collaborative filtering and recommendation mechanism for mobile user service items; In response to the cold start problem of new users and new projects in traditional QoS recommendation methods, prediction and recommendation of missing QoS attribute preference values are based on User based and Item based CF; In response to the problem of difficult determination of mixed recommendation weights caused by massive data and uneven distribution of service QoS attribute values in mobile network environments, MapReduce based ant colony neural network weight training is used for CF mixed recommendation. Experimental results have shown that the Hadoop sports industry has improved the operational efficiency of algorithms and reduced the time for global QoS preference prediction; And by comparing the operation results of the 10% and 100% sub datasets, it can also be seen that the acceleration ratio of the algorithm will continuously improve with the increase of data volume, thereby improving the operational efficiency of the recommendation algorithm. It has been proven that the MapReduce based ant colony neural network weight training method significantly reduces the global computation time of the algorithm and improves the operational efficiency of the recommendation system.

Spectrophotometric determination of zinc in blood and food samples using an air-assisted rapid synergistic-cloud point extraction method based on deep eutectic solvents

At room temperature, an air-assisted rapid synergistic cloud point extraction (AA-RS-CPE) method based on deep eutectic solvent (DES) was presented to determine Zn (II) traces in various samples. Nonanoic acid and L-menthol formed the synergistic reagent (DES) in a 2:1 mole ratio to reduce both time and cloud point temperature. Air cycles were used to maximize recovery and accelerate cloudy solution formation. The 4,4-dimethyl-2,6-dioxo-N-phenylcyclohexanecarbothioamide (DDPCCTA) and TritonX-100 were used as ligand and surfactant, respectively. The validation parameters, including the calibration curve linearity (0.2-900µgL-1), the limit of detection (LOD = 0.10µgL-1), the enhancement factor (EF = 120), and the preconcentration factor (PE = 100), were calculated. Additionally, the accuracy of the AA-RS-DES-CPE approach was proved by two certified reference materials (CRMs). Finally, the three greenness tools, the Blue Applicability Grade Index (BAGI), the Sample Preparation Metric of Sustainability (SPMS), and the Analytical Greenness Metric for Sample Preparation (AGREEprep), were used to evaluate the environmental sustainability values, health hazards, and applicability of this method. This approach was improved to be safer and more environmentally friendly than existing methods, with high application potential.

Comprehensive evaluation of the physicochemical properties and pyrolysis mechanism of products from the slow pyrolysis of waste coffee shells

Slow pyrolysis is an efficient method for converting agricultural and forestry wastes into valuable resources, thereby addressing energy shortage and environmental pollution. In this study, a slow-pyrolysis experiment of coffee shells (CS) at 450–850 °C was conducted in a tube furnace. The resulting pyrolysis products were comprehensively characterized via FTIR, Raman spectroscopy, nitrogen adsorption analysis via BET theory, SEM, XPS, and PY-GC-MS. Moreover, the pyrolysis reaction mechanism and N transformation pathway of CS were proposed. The results showed that with the increase in pyrolysis temperature, the yield of biochar gradually decreased, and the yield of biogas gradually increased. At 850°C, the yields of biochar, bio-oil and biogas of CS were 27.13, 35.16 and 37.71 %, respectively (on a dry, ash-free basis). The bio-oil yield was highest at 550 °C, reaching 35.7 %. Notably, biochar exhibited favorable characteristics such as high specific surface area and porosity, demonstrating its potential as both a biomass fuel and an adsorption material. Acetone (78.30 %) and caffeine (8.29 %) was the predominant substance in bio-oil. Biogas was predominantly composed of CO2, CO, CH4 and H2. The pyrolysis process of CS mainly involved the degradation of macromolecules into small molecules, the repyrolysis of small molecules, dehydrogenation, deoxygenation, alkylation, isomerization, and self-condensation. These results provide a theoretical basis for the recycling of waste biomass CS, which has environmental protection significance and economic value.