Environmental Monitoring and Assessment最新文献

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Habitat suitability distribution and fragmentation of Camellia oleifera in China under current and future climate scenarios based on MaxEnt and Fragstats 基于MaxEnt和Fragstats的当前和未来气候情景下中国油茶生境适宜性分布与破碎化研究
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-13 DOI: 10.1007/s10661-025-14597-z
Xiaojun Wang, Guangxu Liu, Shumei Xiao, Mingying Quan
{"title":"Habitat suitability distribution and fragmentation of Camellia oleifera in China under current and future climate scenarios based on MaxEnt and Fragstats","authors":"Xiaojun Wang,&nbsp;Guangxu Liu,&nbsp;Shumei Xiao,&nbsp;Mingying Quan","doi":"10.1007/s10661-025-14597-z","DOIUrl":"10.1007/s10661-025-14597-z","url":null,"abstract":"<div><p>Applying the MaxEnt model to simulate vegetation distribution and its response to climate change has garnered significant scientific attention. However, existing studies lack in-depth exploration of habitat fragmentation, a research gap that can be effectively addressed by adopting landscape indices. This study integrates the MaxEnt model with bioclimatic, topographic, edaphic factors, and landscape indices to assess spatiotemporal changes in habitat suitability and fragmentation patterns of <i>Camellia oleifera</i> — subtropical woody oleaginous plants—from 1970 to 2100. The results are as follows: (1) Key factors and their ranges affecting the habitat suitability of <i>Camellia oleifera</i> include precipitation of the driest quarter exceeding 50 mm, annual precipitation exceeding 1000 mm, mean temperature of the coldest quarter exceeding 4 °C, and root depth exceeding 13 cm, with a combined contribution rate of over 90%. (2) The optimal habitat regions for <i>Camellia oleifera</i> are primarily distributed in southern China, specifically south of the Yangtze River and east of the Yunnan-Guizhou Plateau. The largest areas of the optimal and suitable habitat regions occurred in the 2030s85 and 2070s45. The habitat suitability changes of <i>Camellia oleifera</i> exhibited drastic fluctuations over time. (3) The fragmentation degree of <i>Camellia oleifera</i> habitat suitability, as indicated by landscape indices, is relatively high in southern China, particularly in the transitional zones between different habitat suitability levels. The degree of fragmentation shows a fluctuating upward trend over time. (4) Regions with high planting potential are the hilly regions of southern China, while future developable regions include the hilly regions of southwestern and northern China. Developing hilly areas is conducive to the rational utilization of regional resources in accordance with local conditions, thereby promoting economic development and improving residents’ living conditions. This study enhances to understanding of changes in habitat suitability and fragmentation of subtropical woody oleiferous plants under climate change. Additionally, it provides insights into the rational use of regional resources to boost the economy and improve living conditions in hilly regions based on local circumstances.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Metagenomic analysis reveals the influence of wastewater discharge on the microbial community structures and spread of antibiotic-resistant bacteria at Mohar river, Gujarat 宏基因组分析揭示了古吉拉特邦Mohar河污水排放对微生物群落结构和耐药菌传播的影响
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-12 DOI: 10.1007/s10661-025-14567-5
Shruti Sharma, Bhavisha Gajjar, Chirayu Desai, Datta Madamwar
{"title":"Metagenomic analysis reveals the influence of wastewater discharge on the microbial community structures and spread of antibiotic-resistant bacteria at Mohar river, Gujarat","authors":"Shruti Sharma,&nbsp;Bhavisha Gajjar,&nbsp;Chirayu Desai,&nbsp;Datta Madamwar","doi":"10.1007/s10661-025-14567-5","DOIUrl":"10.1007/s10661-025-14567-5","url":null,"abstract":"<div><p>An extensive use of antibiotics has evolved bacterial antimicrobial resistance (AMR) and its spread through horizontal gene transfer within microbial communities of the natural environment. The water bodies receiving wastewater from sewage treatment plant (STP) serve as a conducive reservoir for the spread of antibiotic-resistant bacteria (ARB). This study revealed occurrence of multidrug-resistant and extended spectrum β-lactamase (ESBL) producing bacteria present in STP inlet (SI1), outlet (SO1), riverine environment receiving the STP wastewater (MP1), and control site (C1) of the river Mohar, Gujarat. Microbial community analysis revealed <i>Proteobacteria</i> and <i>Firmicutes</i> as dominating phyla in water samples of Mohar River sites<i>.</i> Shotgun analysis showed presence of antibiotic-degrading enzymes and pathways. The resistance profiling of ARBs showed the higher resistance towards cefotaxime at MP1 (77.4%), followed by SO1 (70.5%), SI1 (64.14%), and the least at C1 (57.13%). The highest ESBL isolates were observed at MP1 (96.42%), followed by SI1 (84.51%), SO1 (80.55%), and C1 (78.57%). Moreover, the RT-qPCR analysis for abundance of <i>intI1</i> gene (responsible for HGT) showed a descending pattern from SI1 to the C1. The abundance of <i>intI1</i> was found to correlate positively with mercury, chromium, and chlorine, and a negative correlation was observed with arsenic. The results obtained in this research suggest that AMR spreads and evolves in the water environment via discharge of wastewaters from STPs into the river ecosystems.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Integrating GIS–Fuzzy logic framework and remotely sensed climate data for drought vulnerability assessment across Africa 将gis -模糊逻辑框架与遥感气候数据相结合,用于非洲干旱脆弱性评估
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-11 DOI: 10.1007/s10661-025-14577-3
Amnah A. Alasgah, Imran Ahmad, Mithas Ahmad Dar, Youssef M. Youssef, Martina Zelenakova, Milashu Sisay, Getanew Sewnetu Zewdu, Yasmen Heiba
{"title":"Integrating GIS–Fuzzy logic framework and remotely sensed climate data for drought vulnerability assessment across Africa","authors":"Amnah A. Alasgah,&nbsp;Imran Ahmad,&nbsp;Mithas Ahmad Dar,&nbsp;Youssef M. Youssef,&nbsp;Martina Zelenakova,&nbsp;Milashu Sisay,&nbsp;Getanew Sewnetu Zewdu,&nbsp;Yasmen Heiba","doi":"10.1007/s10661-025-14577-3","DOIUrl":"10.1007/s10661-025-14577-3","url":null,"abstract":"<div><p>Drought is a complex and severe hazard, particularly in Africa, where precipitation underpins livestock and agriculture—the core of the continent’s economy. This study maps drought vulnerability across Africa using a Geographic Information System (GIS)–based Fuzzy Logic Framework, incorporating temperature, precipitation, wind speed, water vapor pressure, and solar radiation factors. Semivariogram modeling was employed to understand the spatial variability of these climatic factors. Semivariogram modeling was chosen for its ability to quantify spatial dependencies, ensuring accurate variability assessment over large regions. Unlike deterministic methods, it captures continuous spatial autocorrelation, enhancing precision in drought vulnerability mapping. Fuzzy membership scores, scaled from 0 to 1, were allocated according to the relative contribution of each variable to drought vulnerability. The final output was classified into five categories: very severe, moderate, mild, slight, and no drought. An explanatory regression analysis was then performed to determine the optimal model for quantifying the influence of climatic variables on drought vulnerability. Model 30 emerged as the optimal fit, demonstrating an adjusted R<sup>2</sup> value of 0.9777 and the lowest Akaike's Information Criterion (AICc) value of 4428.887. Despite high accuracy, data resolution constraints and regional climate variability may introduce biases, limiting predictive adaptability across diverse ecosystems and future climate shifts. Additionally, the spatial autocorrelation tool Moran's I was utilized to verify the uniform distribution of standard residuals, ensuring the model's reliability. The study effectively presents the spatial extent of drought vulnerability across various African countries, highlighting the regions most at risk. This comprehensive analysis provides valuable insights into the geographic distribution of drought vulnerability, offering a robust framework for future research and practical applications in drought management and mitigation strategies. The results emphasize the significance of incorporating advanced GIS methodologies and fuzzy logic to improve the understanding of drought dynamics and to guide targeted measures aimed at reducing their impacts. Furthermore, the proposed model contributes to the development of early warning systems, precision drought interventions, and policy-driven resilience planning.\u0000</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Short-term field effects of a flumioxazin-based herbicide on soil enzyme activities, microbial biomass, respiration, and nitrogen dynamics 氟恶嗪类除草剂对土壤酶活性、微生物生物量、呼吸和氮动态的短期田间影响
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-11 DOI: 10.1007/s10661-025-14503-7
Carlos Filipe Camilo-Cotrim, Eliane Andreia Santos Oliveira, Samantha Salomão Caramori, Virgínia Damin, Luciane Madureira Almeida
{"title":"Short-term field effects of a flumioxazin-based herbicide on soil enzyme activities, microbial biomass, respiration, and nitrogen dynamics","authors":"Carlos Filipe Camilo-Cotrim,&nbsp;Eliane Andreia Santos Oliveira,&nbsp;Samantha Salomão Caramori,&nbsp;Virgínia Damin,&nbsp;Luciane Madureira Almeida","doi":"10.1007/s10661-025-14503-7","DOIUrl":"10.1007/s10661-025-14503-7","url":null,"abstract":"<div><p>Herbicides are widely recognized for their potential to affect soil microbiota, yet field data assessing the impacts of flumioxazin remain scarce. To address this gap, we evaluated short-term field effects of a flumioxazin-based herbicide (Sumisoya®; 100 g ai ha<sup>−1</sup>) on key biochemical and microbial soil indicators, including enzyme activities (<i>α</i>- and <i>β</i>-glucosidase, acid phosphatase, glycine aminopeptidase, arylsulfatase), microbial biomass carbon (MBC), basal soil respiration (BSR), metabolic quotient (<i>q</i>CO<sub>2</sub>), and inorganic nitrogen forms (N-NH<sub>4</sub><sup>+</sup> and N-NO<sub>3</sub><sup>−</sup>). Application of flumioxazin significantly reduced <i>β</i>-glucosidase activity across the experimental period (<i>p</i> &lt; 0.05) and temporarily decreased arylsulfatase activity shortly after application (<i>p</i> &lt; 0.001). No significant effects were observed for α-glucosidase, acid phosphatase, and glycine aminopeptidase. Regarding nitrogen cycling, initial N-NH<sub>4</sub><sup>+</sup> concentrations were lower in treated soils than in the control (<i>p</i> &lt; 0.0001). Following herbicide application, N-NH<sub>4</sub><sup>+</sup> increased and stabilized in the treated plots but consistently remained below control levels, with a significant difference observed at 28 days (<i>p</i> &lt; 0.05). MBC increased in treated soils at 14 (<i>p</i> &lt; 0.0001) and 28 days (<i>p</i> &lt; 0.01), BSR increased transiently at day 7 (<i>p</i> &lt; 0.05), and <i>q</i>CO<sub>2</sub> decreased significantly at days 14 and 28 (<i>p</i> &lt; 0.0001), indicating altered microbial metabolic efficiency. Multivariate analysis confirmed significant interactions of treatment and time (<i>p</i> &lt; 0.01). These findings highlight that flumioxazin application induces short-lived but measurable disturbances in soil biological processes.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
See Salt: Recommendations for engaging oyster growers in community-based coastal monitoring programs 参见盐:让牡蛎种植者参与社区海岸监测项目的建议
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-11 DOI: 10.1007/s10661-025-14560-y
Natalie G. Nelson, Marcelo Ardón, Tal Ben-Horin, Eric Herbst, Whitney Knollenberg, María Menchú-Maldonado, Christopher L. Osburn
{"title":"See Salt: Recommendations for engaging oyster growers in community-based coastal monitoring programs","authors":"Natalie G. Nelson,&nbsp;Marcelo Ardón,&nbsp;Tal Ben-Horin,&nbsp;Eric Herbst,&nbsp;Whitney Knollenberg,&nbsp;María Menchú-Maldonado,&nbsp;Christopher L. Osburn","doi":"10.1007/s10661-025-14560-y","DOIUrl":"10.1007/s10661-025-14560-y","url":null,"abstract":"<div><p>Aquatic monitoring of estuarine and coastal waters remains limited due to steep maintenance requirements for in situ hardware stemming from rapid biofouling and harsh environmental conditions. Monitoring sites will also ideally span a mix of shoreline and open water locations, and the need to travel to remote locations can strain resources and limit the geographic footprint of coastal monitoring programs. To overcome these limitations, we explored opportunities to partner with aquatic industry professionals who work on the water and may be able to incorporate routine site visits for sensor maintenance as part of their day-to-day routines. We specifically focused on collaborating with oyster growers to collect continuous salinity and water level observations on their farms, as part of a community-enabled monitoring program we named “See Salt.” In this short communication, we present the See Salt program as a case study and provide recommendations for others who may be interested in establishing a similar community-supported coastal monitoring program. Our recommendations include the following: (1) establish multi-method evaluation strategies to gain insights on program improvement, (2) invest in hardware that can go long durations without recalibration and cleaning, and (3) provide participants with the equipment and training needed to maintain sensors and validate measurements on their own. While we focus on our experiences monitoring salinity and water levels with oyster growers, the recommendations are not specific or unique to these variables or this partner population; our findings are broadly applicable to aquatic monitoring performed in partnership with non-academic professionals.\u0000</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10661-025-14560-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Removal of toxic metals in contaminated water by adsorption using filters with a combination of nanomaterial and biomass 纳米材料与生物质复合过滤器吸附去除污染水中的有毒金属
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-11 DOI: 10.1007/s10661-025-14526-0
Luma Rodrigues Blanc, Luiz Fernando Oliveira Maia, Cristiano Agenor Oliveira de Araújo, Camila Neves Lange, Bruno Lemos Batista, Jairo Lisboa Rodrigues
{"title":"Removal of toxic metals in contaminated water by adsorption using filters with a combination of nanomaterial and biomass","authors":"Luma Rodrigues Blanc,&nbsp;Luiz Fernando Oliveira Maia,&nbsp;Cristiano Agenor Oliveira de Araújo,&nbsp;Camila Neves Lange,&nbsp;Bruno Lemos Batista,&nbsp;Jairo Lisboa Rodrigues","doi":"10.1007/s10661-025-14526-0","DOIUrl":"10.1007/s10661-025-14526-0","url":null,"abstract":"<div><p>The presence of toxic metals in water represents an environmental and public health challenge on a global scale, due to the persistence of these elements in ecosystems, their toxicity, and the risk of bioaccumulation in the food chain. Among the various remediation technologies, adsorption stands out for its cost-effectiveness. This study evaluated various filters composed of activated carbon (AC), δ-FeOOH (iron oxyhydroxide), K-jarosite, rice husk biomass, and banana peel biomass, alone and in combinations, for their ability to remove contaminants As<sup>5+</sup>, Cd<sup>2+</sup>, Cu<sup>2+</sup>, and Pb<sup>2+</sup> from solutions. The filters were constructed in 50-mL Falcon® tubes, filled with specific adsorbent materials and tested using standard metal solutions at two concentration levels (30 and 300 µg L<sup>−1</sup>). Filters combining AC with δ-FeOOH (F6) and banana peel biomass with δ-FeOOH (F11) showed high efficiency. F11 was the most effective, achieving 100% removal of As<sup>5+</sup> and Pb<sup>2+</sup>, 99.95% of Cd<sup>2+</sup>, and 85.88% of Cu<sup>2+</sup> in the lower concentration range and complete removal of several contaminants across both tested concentrations (30 µg L<sup>−1</sup> e 300 µg L<sup>−1</sup>). At the same concentration (30 µg L<sup>−1</sup>), F11 also removed 53.58% of Cd<sup>2+</sup> and 69.17% of Cu<sup>2+</sup>. Filter F6 also demonstrated remarkable performance in the lower concentration range (30 µg L<sup>−1</sup>) removing 100% of As<sup>5+</sup>, 95.31% of Cd<sup>2+</sup>, 95.12% of Cu<sup>2+</sup>, and 89.27% of Pb<sup>2+</sup>. The δ-FeOOH component was particularly effective for As<sup>5+</sup> removal due to its surface properties, while banana peel biomass excelled in Pb<sup>2+</sup> and Cu<sup>2+</sup> removal due to its oxygen-rich functional groups. Field tests with water samples from the Doce River in Brazil further demonstrated the practical potential of the F11 filter in significantly reducing toxic metal concentrations, showcasing its promise as a low-cost, efficient solution for water purification.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
A novel Bi-weight Mid Correlation Coefficient Divergence (BMCCD) approach for multi-model ensemble-based drought assessment 一种基于多模式组合的双权重中相关系数散度(BMCCD)新方法
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-11 DOI: 10.1007/s10661-025-14578-2
Mahrukh Yousaf, Laraib Shafique, Sadia Qamar, Muhammad Shakeel, Farman Ali, Zulfiqar Ali
{"title":"A novel Bi-weight Mid Correlation Coefficient Divergence (BMCCD) approach for multi-model ensemble-based drought assessment","authors":"Mahrukh Yousaf,&nbsp;Laraib Shafique,&nbsp;Sadia Qamar,&nbsp;Muhammad Shakeel,&nbsp;Farman Ali,&nbsp;Zulfiqar Ali","doi":"10.1007/s10661-025-14578-2","DOIUrl":"10.1007/s10661-025-14578-2","url":null,"abstract":"<div><p>Drought is a complex natural disaster that has persisted for decades. It significantly impacts ecosystems, water resources, and agricultural sustainability. Global climate models (GCMs) are widely recognized as forecasting tools for climate processes. However, variations among the GCMs limit the reliability of individual models. To overcome this limitation, the Multi-Model Ensemble (MME) approach provides a more robust framework compared to single-model analyses. Therefore, the main objective of this study is to introduce a novel “Bi-weight Mid Correlation Coefficient Divergence (BMCCD)” weighting scheme that surpasses existing methods in efficiency and reliability. The performance of BMCCD is compared with the traditional Simple Model Averaging (SMA) and the more recent weighted ensemble (WE) approaches. Results reveal that BMCCD has the highest average correlation value of 0.749 with the referenced data. Moreover, the mean error value of BMCCD, which is 1.332, is the least among all three approaches. The data aggregated using BMCCD was then utilized to develop the Standardized Bi-weight Divergence Index (SBDI), which serves as a key tool in this study. The BMCCD-aggregated data was projected for the period from 2015 to 2100 using linear regression under three different future scenarios. The standardized projected data were analyzed across seven time scales and three Shared Socio-economic Pathways (SSP) to evaluate the long-term characteristics of drought. The results indicate that extreme drought (ED) and extreme wet (EW) events have low probabilities under all SSP scenarios. However, despite their low probability, these high-impact events necessitate attention from policymakers when designing strategies to mitigate future risks.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Nitrogenous fertilizers affect Cd accumulation in the soil-mulberry-silkworm system: implications for safe utilization of contaminated farmland 氮肥对土壤-桑蚕系统Cd积累的影响:对污染农田安全利用的启示
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-11 DOI: 10.1007/s10661-025-14588-0
Yongbing Jiang, Xiyun Yang, Shimeng Jiang, Armel Tientega, Hui Cao, Zhangbao Li, Ming Wang, Renzhi Huang, Tangzhong Long
{"title":"Nitrogenous fertilizers affect Cd accumulation in the soil-mulberry-silkworm system: implications for safe utilization of contaminated farmland","authors":"Yongbing Jiang,&nbsp;Xiyun Yang,&nbsp;Shimeng Jiang,&nbsp;Armel Tientega,&nbsp;Hui Cao,&nbsp;Zhangbao Li,&nbsp;Ming Wang,&nbsp;Renzhi Huang,&nbsp;Tangzhong Long","doi":"10.1007/s10661-025-14588-0","DOIUrl":"10.1007/s10661-025-14588-0","url":null,"abstract":"<div><p>Developing the sericulture industry is an important way to safely utilize cadmium (Cd) heavily contaminated farmland, and nitrogenous fertilizer (N fertilizer) is crucial for the quality of mulberry leaves and the yield of silkworm cocoons. This study evaluated the influences of N fertilizers (NH<sub>4</sub>Cl, NH<sub>4</sub>HCO<sub>3</sub>, CO(NH<sub>2</sub>)<sub>2</sub>, (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>) on the accumulation of Cd in the soil-mulberry-silkworm system, the physiological responses of <i>Bombyx mori</i> L. (silkworm), and the yield and quality of cocoons. The results showed that the four N fertilizers first decreased the ingestion rate (IR) and digestion rate (DR) and then increased them slowly. The maximum concentration of Cd in silkworm excrement (SE) was 0.77 mg/kg And the concentration of Cd in SE is 4.1 ~ 6.5 times as high as in the silkworm body. All the bioconcentration factors (BCFs) of mulberry organs for Cd were lower than 1, but the translocation factors (TFs) from larva to SE were above 1. The NH<sub>4</sub>Cl and (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> increased the BCFs of Cd in root, but CO(NH<sub>2</sub>)<sub>2</sub> and NH<sub>4</sub>HCO<sub>3</sub> decreased them. CO(NH<sub>2</sub>)<sub>2</sub> and NH<sub>4</sub>HCO<sub>3</sub> increased the survival rates of larva pupa, but NH<sub>4</sub>Cl and (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> significantly reduced them. The four N fertilizers all increased the ratios of cocoon shells, and NH<sub>4</sub>HCO<sub>3</sub> was the highest, followed by CO(NH<sub>2</sub>)<sub>2</sub>. The whole cocoon weight of CO(NH<sub>2</sub>)<sub>2</sub> and NH<sub>4</sub>HCO<sub>3</sub> treatments were 1.34 And 1.42 g, respectively, significantly greater than that of the control treatment. NH<sub>4</sub>HCO<sub>3</sub> decreased the percentage content of Cd accumulation in silkworms and enhanced it in SE. These results indicated that planting mulberry and raising silkworm with reasonable use of NH<sub>4</sub>HCO<sub>3</sub> and CO(NH<sub>2</sub>)<sub>2</sub> contributes to the safe utilization of acidic paddy fields heavily polluted by Cd.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145032397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
Monitoring of shallow groundwater in Lower Saxony, Germany—spatial variability of redox conditions and benefit of the redox proxy ∆Mn-Fe 德国下萨克森州浅层地下水监测——氧化还原条件的空间变异及氧化还原代理指标∆Mn-Fe的效益
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-10 DOI: 10.1007/s10661-025-14557-7
K. Hamer, J. Ritter
{"title":"Monitoring of shallow groundwater in Lower Saxony, Germany—spatial variability of redox conditions and benefit of the redox proxy ∆Mn-Fe","authors":"K. Hamer,&nbsp;J. Ritter","doi":"10.1007/s10661-025-14557-7","DOIUrl":"10.1007/s10661-025-14557-7","url":null,"abstract":"<div><p>Surveillance monitoring of shallow groundwater revealed that redox conditions can vary on a small scale. Therefore, the aim of this study was to categorize redox conditions in the groundwater of Lower Saxony, Germany, and to analyze the spatial distribution and trends of parameters related to redox conditions during surveillance monitoring from 1957 to 2015 in Lower Saxony, Germany. Methodically, trends were considered by applying the Mann-Kendall test and redox conditions of groundwater were classified according to the scheme of Jurgens et al. (2009). While the porous aquifers were dominated by anoxic redox conditions, the karst and joint aquifers presented a high percentage of the oxic redox category. A third of the monitoring wells showed trends with respect to redox conditions. Positive ΔMn-Fe values, indicating manganese-reducing conditions, were observed in 17% of the samples, which were mostly taken in areas of high groundwater recharge. Remarkably, different redox regimes were sampled in close neighborhoods within areas that were assumed to be homogeneous with respect to recharge rate, usage, and hydrogeology. In conclusion, parameters that are sensitive to redox conditions should be investigated stepwise; first, monitoring wells should be categorized according to the redox conditions and second, only wells with the same redox conditions should be compared. Third, the parameter ∆Mn-Fe should serve as a proxy for potential changes of the redoxcline, e.g., due to nitrate emissions to shallow groundwater. This stepwise procedure allows the assessment of groundwater and can serve as a basis for the design of measures to reach environmental aims according to the European Water Framework Directive.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10661-025-14557-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immobilization of Cd and Pb in soil using PEI (polyethyleneimine)-functionalization biochar derived from agricultural residues 利用农业废弃物衍生的PEI(聚乙烯亚胺)功能化生物炭固定化土壤中的Cd和Pb
IF 3 4区 环境科学与生态学
Environmental Monitoring and Assessment Pub Date : 2025-09-10 DOI: 10.1007/s10661-025-14563-9
Yi Wang, Chao Meng, Qina Chen, Zhiyuan Zhang
{"title":"Immobilization of Cd and Pb in soil using PEI (polyethyleneimine)-functionalization biochar derived from agricultural residues","authors":"Yi Wang,&nbsp;Chao Meng,&nbsp;Qina Chen,&nbsp;Zhiyuan Zhang","doi":"10.1007/s10661-025-14563-9","DOIUrl":"10.1007/s10661-025-14563-9","url":null,"abstract":"<div><p>The rapid development of industry and agriculture has led to a significant increase in the toxicity and pollution of cadmium (Cd) and lead (Pb) in soil. Consequently, soil remediation employing biochar or modified biochar has emerged as a cost-effective and environmentally sustainable approach to address the issue of heavy metal (HM) ion pollution. PEI-functionalization biochar (PBC) derived from corn straw (PBCC), wood straw (PBCW), and rice straw (PBCR) was synthesized to immobilize Cd and Pb in contaminated acidic yellow soil. Characterization revealed successful PEI grafting N-doped carbon XRD patterns at 26.7°. PBC increased average pore size by 25.23–30.60% (3.976–3.175 nm, 23.906–18.34 nm) but reduced specific surface area due to polymer occlusion, PBCW retaining the highest surface area (214.9 m<sup>2</sup>/g). Applied at 1–7% doses, PBC significantly elevated soil pH and electrical conductivity while enhancing soil organic carbon, total nitrogen, and phosphorus. The 5% dose of PBCR showed strong Cd immobilization (47.15% reduction in bioavailable Cd, 8.32–11.01 mg/kg, <i>p</i> &lt; 0.001) and reduced bioavailable Pb by 24.43% (0.06–0.11 mg/kg, <i>p</i> &lt; 0.01). Sequential extraction confirmed PBC converted weak acid-extractable Cd/Pb into stable residual fractions. This study demonstrates that 5% PEI-modified rice straw biochar (PBCR) effectively remediates Cd/Pb co-contaminated acidic soils while enhancing agricultural productivity, confirming simultaneous metal passivation and nutrient retention. This work establishes agricultural residue-derived PEI-biochar as a sustainable strategy for co-remediating heavy metals and enhancing productivity in contaminated farmland.</p></div>","PeriodicalId":544,"journal":{"name":"Environmental Monitoring and Assessment","volume":"197 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
引用次数: 0
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