Journal of Environmental Management最新文献

{"title":"Quantifying microbial necromass contributions to soil carbon sequestration under diverse cropland management practices: A meta-analysis","authors":"Peng Wang ,&nbsp;Yakov Kuzyakov ,&nbsp;Yueying Wang ,&nbsp;Ying Liu ,&nbsp;Ji Liu ,&nbsp;Zhiming Qi ,&nbsp;Yong He ,&nbsp;Qianjing Jiang","doi":"10.1016/j.jenvman.2025.126008","DOIUrl":"10.1016/j.jenvman.2025.126008","url":null,"abstract":"<div><div>Under the dual challenges of global climate change and agricultural sustainability, cropland soils, as critical carbon (C) sinks, have garnered significant attention regarding the stabilization mechanisms of their organic C pools. Existing studies indicate that the stable organic C pool in cropland soils primarily originates from the accumulation of microbial necromass, a process strongly influence by agricultural management practices. However, there remains a notable knowledge gap regarding how various management strategies influence microbially turnover and necromass formation mechanisms. This study integrates 1082 globally distributed paired experimental datasets to establish the quantitative framework linking microbial necromass dynamics with multi-scale management practices. The results showed that the greatest increase in microbial necromass C (MNC) content (42 %) was obtained when mineral and organic fertilizers were combined. Individually, the application of manure, straw, and green manure boosted MNC by 28 %, 9 %, and 31 %, respectively. Conservation tillage and crop rotation increased MNC by 20 % and 14 %, respectively. A pivotal advancement lies in elucidating the lagged formation of microbial necromass relative to living biomass turnover and demonstrating the superior coupling effects of integrated management strategies over singular practices. Interactions among climatic, soil physicochemical and microbial properties regulated the necromass formation pathways and organic C accumulation. Appropriate management strategies can boost C sequestration in cropland soils by facilitating microbial necromass accumulation, offering potential benefits at both regional and global scales.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 126008"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Navigating climate threats in forestry across five European regions: Stakeholder's adaptive management and policy strategies to resilience","authors":"Tahamina Khanam ,&nbsp;Marina Peris-Llopis ,&nbsp;Mari Selkimäki ,&nbsp;Gediminas Brazaitis ,&nbsp;Blas Mola-Yudego ,&nbsp;Henrik Hartmann ,&nbsp;Alexandru Lucian Curtu ,&nbsp;Aureliu-Florin Hălălișan ,&nbsp;Žaklina Marjanovic ,&nbsp;Leena Leskinen ,&nbsp;Anastasia Pantera ,&nbsp;Marc Djahangard ,&nbsp;Rasoul Yousefpour ,&nbsp;Gailene Brazaityte ,&nbsp;Lana Kukobat ,&nbsp;Goran Trivan ,&nbsp;Zhun Mao ,&nbsp;Jo Van Brusselen ,&nbsp;Frank Berninger","doi":"10.1016/j.jenvman.2025.125903","DOIUrl":"10.1016/j.jenvman.2025.125903","url":null,"abstract":"<div><div>This study explores the perspectives and adaptive strategies of forest stakeholders across five regions of Europe, North to South—Finland, Lithuania, Romania, Serbia, and Greece—regarding climate change challenges in forestry. 129 stakeholders were surveyed, including forest owners, professionals, environmental NGOs, government representatives, and recreationists, who pointed at soil quality, biodiversity, carbon sequestration, and timber production as the main concerns. Regional threats varied, with storms and pests prevailing in Finland, illegal logging in Lithuania, Romania and Serbia, and fires and unsustainable grazing in Greece. Proposed solutions emphasise active forest management, stakeholder engagement and policy reforms. While Finland and Serbia are optimistic about future forest resilience, Lithuania and Romania are neutral. Greece shows mixed reactions, mainly due to concerns about the political will to implement effective forest policy. The study highlights nuanced regional responses to climate-related forest challenges and the need for region-specific approaches to forest management and policy, with broader implications for environmental governance strategies.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 125903"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Short-term spatial prediction of algal blooms in Lake Taihu via machine learning and GOCI observations","authors":"Zehui Huang ,&nbsp;Ronghua Ma ,&nbsp;Haoze Liu ,&nbsp;Kun Xue ,&nbsp;Minqi Hu ,&nbsp;Xiaoqi Wei ,&nbsp;Hanhan Li","doi":"10.1016/j.jenvman.2025.125964","DOIUrl":"10.1016/j.jenvman.2025.125964","url":null,"abstract":"<div><div>Harmful algal blooms are critical issues in eutrophic lakes worldwide. However, predicting the spatial distribution of algal blooms at the pixel level is still a challenge. In this study, floating algae cover (FAC) was used to extract algal coverage via the Geostationary Ocean Color Imager (GOCI) and GOCI-II satellites. Three novel indices, the floating algae cover index (FACI), distance index (DI), and algae around index (AAI), were developed. Including these three indices and environmental factors, a total of 12 input features were utilized to predict the short-term spatial variations in algal blooms via random forest (RF), support vector regression (SVR), extreme gradient boosting (XGBoost), and deep neural network (DNN) algorithms through hour-by-hour iterations. The results indicated that the RF model exhibited better performance (R² = 0.91, RMSE = 9.08 %, N = 88,791) than the SVR model (R² = 0.79, RMSE = 13.97 %), the XGBoost model (R² = 0.84, RMSE = 12.11 %), and the DNN model (R² = 0.67, RMSE = 17.39 %). The RF model was then applied to predict the spatial distribution of FAC in Lake Taihu. The FAC values at the pixel level were predicted to have an average R² of 0.67 across the six subregions of Lake Taihu, as well as satisfactory performance (R² = 0.83, RMSE = 1.39 %, N = 68) in predicting the overall FAC of Lake Taihu after 7 h, which indicated that the model maintains a high level of accuracy at the pixel level and in overall predictions. The iterative FAC prediction model promotes the efficiency of spatial prediction of algal blooms and enables the location and intensity of bloom outbreaks to be determined hours in advance, which provides valuable technical support for the ecological management of eutrophic lakes.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 125964"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated constructed wetland-river (ICWR) system for efficient nitrogen removal from secondary effluent: Performance, cost and carbon footprint analysis","authors":"Xiaoxue Yin ,&nbsp;Cancan Jiang ,&nbsp;Xiaoxu Zheng ,&nbsp;Ping Lv ,&nbsp;Yu Qin ,&nbsp;Yabo Wang ,&nbsp;Yun Chen ,&nbsp;Jing Liu ,&nbsp;Yuan Zhou ,&nbsp;Shengjun Xu ,&nbsp;Xuliang Zhuang ,&nbsp;Huanzhen Zhang","doi":"10.1016/j.jenvman.2025.125984","DOIUrl":"10.1016/j.jenvman.2025.125984","url":null,"abstract":"<div><div>To address the challenge of balancing high efficiency and cost-effectiveness in nitrogen removal from secondary effluent, a novel integrated constructed wetland-river (ICWR) system was developed in this study. This system comprised four sequential units: a first-stage constructed wetland (CW1), a first-stage river reach (R1), a second-stage constructed wetland (CW2), and a second-stage river reach (R2), arranged as CW1-R1-CW2-R2. The performance of ICWR system in purifying real secondary effluent from a wastewater treatment plant (WWTP) as well as its cost-effectiveness and carbon footprint were evaluated. The ICWR system achieved an annual average TN removal rate of 65.0 % for secondary effluent with a low C/N ratio (2.06) and TN concentrations of 7.74–16.90 mg/L. Compared to conventional tertiary treatment processes like denitrification biofilters (DNBFs) and standalone constructed wetlands (CWs) under similar conditions, the ICWR system demonstrated 26.62 % and 28.05 % higher TN removal rates, respectively. It also maintained strong performance during cold season, with a TN removal rate of 54.6 %, about 40.0 % higher than standalone CWs. Seasonal synergy was evident, with CW1 contributing most in warm periods and R2 dominating in cold seasons. Moreover, the ICWR system reduced treatment costs by 78.6 % and 64.0 % compared to DNBFs and CWs, and lowered carbon emissions by 55.4 % on average relative to DNBFs. This study presents an innovative and practical solution for efficient, economical, and eco-friendly advanced nitrogen removal, particularly suitable for cold climates and economically disadvantaged regions. It serves as an alternative to traditional grey tertiary treatment processes within WWTPs, offering a nature-based engineering approach that is implemented outside the WWTP.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 125984"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel synergy remediation of solubilization adsorption coupled with oxidation by cyclodextrin-magnetic biochar assisted persulfate for benzo(a)pyrene-contaminated soil","authors":"Lei Wu ,&nbsp;Yuan Gao ,&nbsp;Zhendong Wang ,&nbsp;Rock Keey Liew ,&nbsp;Bin Bai ,&nbsp;Tiantian Liu ,&nbsp;Jiansheng Xiao ,&nbsp;Su Shiung Lam ,&nbsp;Jun Zhou","doi":"10.1016/j.jenvman.2025.126013","DOIUrl":"10.1016/j.jenvman.2025.126013","url":null,"abstract":"<div><div>During biochar (BC) assisting persulfate (PS) in remediating organic contaminated soils, challenges include low electron transfer efficiency and a limited adsorption-oxidation interface, which hinder pollutant degradation under complex environmental conditions. This study prepared a biochar-based composite activator (CDMBC) by introducing iron oxides onto the biochar surface and grafting <em>β-</em>cyclodextrin (<em>β</em>-CD), and examined CDMBC's role in facilitating PS oxidation to remediate benzo(a)pyrene (BaP)-contaminated soil under mild conditions. Results showed that CDMBC had a loose surface structure with partially uniform active components, strong oxidative capacity, and enhanced electron transfer ability. Under the optimal conditions of 1.00 wt% of CDMBC addition, 0.75 wt% of PS addition, 35 °C of remediation temperature, 1:2.5 of solid-liquid ratio, and 800 °C of biochar preparation temperature, the BaP removal with a maximum of 98.97 % in contaminated soil was obtained after 120 min. Of this total BaP removed, 2.74 % was via the aqueous phase, 12.41 % through adsorption on the BC surface, and 83.82 % through oxidative degradation in the soil. CDMBC exhibited stable performance during repeated recycling and significantly reduced soil toxicity after remediation. CDMBC's loose structure, conductive magnetic particles, and solubilizing <em>β</em>-CD enhanced electron transfer and BaP adsorption, promoting BaP desorption from soil particles into the aqueous phase. Through the combined actions of solubilizing adsorption, reactive oxygen species (ROS) oxidation, singlet oxygen (¹O₂) - electron transfer - surface active groups oxidation, BaP in contaminated soil was decomposed into CO₂, H₂O, etc., hence facilitating significant remediation. Overall, this synergistic effect of solubilizing adsorption - oxidation provides a novel approach for BC-assisted PS remediation of organic-contaminated soils with substantial potential for practical applications.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 126013"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Balancing the ban: Navigating the economic and environmental trade-offs of single-use plastics in Ghana","authors":"Ebenezer F. Amankwaa ,&nbsp;Michael Danquah","doi":"10.1016/j.jenvman.2025.126020","DOIUrl":"10.1016/j.jenvman.2025.126020","url":null,"abstract":"<div><div>As bans on single-use plastics gain momentum as a policy tool to combat plastic pollution, debates continue among scholars and policymakers regarding their environmental efficacy and economic consequences. This paper empirically examines the socio-economic and environmental trade-offs of a potential single-use plastic ban in Ghana, guided by the central research question: What are the key considerations and implications of such a policy? Employing a mixed-methods approach, the study draws on quantitative and qualitative data from plastic manufacturers, retailers and households across Accra, Kumasi, Sekondi-Takoradi, and Tamale. The findings reveal a stark divide in stakeholder perspectives: while households overwhelmingly support the ban, citing perceived environmental, aesthetic, and public health benefits, manufacturers and retailers oppose it, pointing to the absence of viable alternatives, weak regulatory enforcement, a thriving black market, and the economic significance of the plastic industry. A ban could lead to significant economic disruptions, including an estimated GHC3.5 million ($648,148) in weekly labour income losses, translating to over GHC14.4 million ($2.6 million) monthly, and an estimated GHC5.4 million ($1 million) in weekly tax revenue losses. These disruptions risk undermining export volumes, foreign exchange earnings, and overall economic stability by decreasing the production and export of plastic-related products while increasing dependence on more expensive imported alternatives, ultimately straining Ghana's trade balance and fiscal space. Rather than an outright ban, the paper recommends a multi-pronged, cross-sectoral policy approach that prioritizes circular economy principles, incentivizes sustainable business innovation, and fosters community-driven voluntary initiatives that promote environmental stewardship. This balanced strategy offers a more economically viable and environmentally sustainable pathway for managing single-use plastics in Ghana.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 126020"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Embedded carbon emissions in the inter-industrial sectors of China: A new analysis of total factor productivity and capacity utilization","authors":"Shuai Xu ,&nbsp;YuHan Song ,&nbsp;YuPeng Yang","doi":"10.1016/j.jenvman.2025.125970","DOIUrl":"10.1016/j.jenvman.2025.125970","url":null,"abstract":"<div><div>The proposal of carbon neutrality has highlighted the growing significance of synergizing carbon reduction and total factor productivity (TFP) growth in China's industrial sectors. This paper introduces a theoretical innovation by incorporating the energy and carbon emissions (CEs) space into the Cobb-Douglas (C-D) production function as a measurement indicator, which avoids the potential bias in TFP measurement that may arise when considering only direct CEs. It fills a gap in the measurement of TFP, which includes both implied and direct CEs. It complements theoretical models of TFP. The TFP indicator can be measured more accurately, which helps to fully account for environmental costs and resource use in economic activities. In this paper, an extended model for measuring TFP is constructed using the non-competitive input-output model (NCIO model) and the Manquist-Luenberger index (DML) based on the directional distance function. These models provide a systematic analysis of the TFP and capacity utilization of China's industrial sectors from an embodied perspective. The findings of the study are as follows: (1) The growth of TFP from the embodied perspective (IDML) in China's industrial sector is 7.97 %. (2) TFP growth from the direct perspective (SDML) in China's industrial sector is 4.16 %, which is lower than that of IDML. (3) The capacity utilization rate of industrial sectors from 2002 to 2017 was 63.4 %, showing a general tendency toward an upward trajectory, despite fluctuations. In light of these findings, the study provides a valuable reference for effectively promoting the sustainable development of industrial sectors and economic growth in alignment with the goal of carbon neutrality.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 125970"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical oxidation of polycyclic aromatic hydrocarbons in soil co-contaminated with arsenic","authors":"Kim Johansson ,&nbsp;Azariel Ruiz-Valencia ,&nbsp;Ivan Carabante ,&nbsp;Timothy M. Vogel ,&nbsp;Erkki Lindberg ,&nbsp;Jurate Kumpiene","doi":"10.1016/j.jenvman.2025.125978","DOIUrl":"10.1016/j.jenvman.2025.125978","url":null,"abstract":"<div><div>The wood preservation industry has contaminated numerous sites with polycyclic aromatic hydrocarbons (PAH). The aim of this study was to investigate the use of electrochemical oxidation (EO), without chemical additives, for <em>in situ</em> degradation of PAHs in soil co-contaminated with arsenic. Two 1 m³ boxes, each containing a 20 cm layer of contaminated sand overlaid with 20 cm of peat, were equipped with iron electrodes and placed outdoors. EO was applied using a pulsating direct current with alternating polarity, and its impact on PAH concentrations in soil and soil solution, as well as on the associated microbial community was assessed. Soil solution was sampled from the boxes over two seasons and analysed for PAH16 concentrations, showing an average decrease of 82 % by the end of the second season. This reduction was mainly observed in the medium and high molecular weight PAH fractions, suggesting that EO can effectively degrade more recalcitrant PAH compounds. The least reduction was seen in the low molecular weight PAH16, likely due to the replenishment from PAHs sorbed to the soil. Soil samples were taken from 12 different locations within the boxes, showing that PAH16 concentrations significantly decreased in 10 out of 12 sampling points, with a greater average reduction in sand (84 % decrease) compared to peat (69 % decrease). Microbial analyses of the soil samples revealed no significant changes in DNA concentrations across all taxa over time, with <em>Gammaproteobacteria</em> remaining the most abundant microorganisms in all samples, suggesting its ability to persist complex contamination.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 125978"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New insights of NaClO induced polyvinyl chloride microplastics affect sewage treatment in activated sludge","authors":"Jin Xu ,&nbsp;Xiuhong Liu ,&nbsp;Yimai Zhou ,&nbsp;Shiyong Zhang ,&nbsp;Jiaxin Li ,&nbsp;Qing Yang","doi":"10.1016/j.jenvman.2025.125848","DOIUrl":"10.1016/j.jenvman.2025.125848","url":null,"abstract":"<div><div>The microplastics (MPs) are often exist as cumulative state in the bioreactor (especially MBR) of wastewater treatment plants (WWTPs). NaClO is a common chemical cleaning agent which will inevitably enter the MBR membrane pool and contact with the accumulated MPs in the membrane pool during membrane cleaning process. Therefore, the focus of this study is the toxicity mechanism of NaClO and MPs co-exposure to activated sludge. In this study, the COD, TN, and TP removal efficiencies decreased at first several cycles, and then gradually recovered without NaClO stress. While the nutrient removal efficiency showed a continuous declination trend with NaClO stress and have no recovery trend. Meanwhile, the key enzymes (such as AMO, NXR, NIR and NAR), which could echo the trend of nutrient metabolism. The dominate bacteria related to nitrogen removal including nitrification (<em>Saccharimonadales</em>) and denitrification (<em>Tessaracoccus</em>, <em>Mobilicoccus</em>, <em>vadinHA17</em>, <em>Mesorhizobium</em> and <em>Hyphomicrobium</em>) were both inhibited with NaClO and PVC-MPs co-exposed. This study also confirmed that NaClO stress could change the types of MPs leachate and enhance the release of main additives (BPA) from MPs. The NaClO and MPs co-exposure could enhance the level of oxidative stress, which led to the broken of cell membrane. The toxicity mechanism of NaClO and MPs co-exposure to activated sludge is as follows: NaClO can increase the oxidative stress level of microplastics, which has nothing to do with the release of trace additives.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 125848"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative assessment of vegetation carbon sequestration in typical natural secondary forests of the Loess Plateau: Incorporating the influences of human activities and climate variations","authors":"Xinying Wang ,&nbsp;Zheng Gong ,&nbsp;Jincheng Liu","doi":"10.1016/j.jenvman.2025.126000","DOIUrl":"10.1016/j.jenvman.2025.126000","url":null,"abstract":"<div><div>The Ziwuling region, the biggest surviving natural secondary forest area on the Loess Plateau (LP), is essential to controlling the climate and preserving the ecological balance of western China. To accurately capture the spatiotemporal dynamics of vegetation carbon sequestration and the impacts of climate change and human activities in the Ziwuling region, this study proposes an improved CASA model-based framework for estimating vegetation carbon sequestration capacity. By estimating vegetation net primary productivity (NPP) from 2001 to 2021 and calculating the weight of vegetation carbon sequestration (W_C), the study employs a combination of statistical methods to analyze the spatiotemporal variation characteristics and driving factors. Our study results show that: (1) From 2001 to 2021, the vegetation W_C in the Ziwuling region increased significantly, the annual average W_C increased from 903.77 g/m²a in 2001 to 1185.35 g/m²a in 2021, reflecting a growth of approximately 31.1 %; (2) In the future, there is a possibility of a decrease in vegetation W_C in the northern region, which accounts for approximately 59.2 % of the study area, while the central region may remain relatively stable; (3) In the Ziwuling region, human activities (HA) have greater influence on vegetation W_C than climate variations (CV) do in most places,and the increase in W_C in 88.7 % of the study area is attributed to human activities. The research findings contribute to understanding the vegetation carbon sequestration response mechanisms in natural forest areas under China's ecological engineering initiatives. Additionally, they provide recommendations for vegetation protection in the Ziwuling region and ecological restoration of the Loess Plateau.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"388 ","pages":"Article 126000"},"PeriodicalIF":8.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}