工业工程最新文献

{"title":"[Carbon Emission for China's Iron and Steel Industry： Peak Scenarios and Neutralization Pathways].","authors":"Pan-Lu Zhang, Qin-Jun Du, Kai-Xuan Zhang, Wen-Tao Tian","doi":"10.13227/j.hjkx.202311110","DOIUrl":"https://doi.org/10.13227/j.hjkx.202311110","url":null,"abstract":"<p><p>To explore the future carbon emission peak scenarios of China's iron and steel industry as well as the effective pathways for carbon emission neutrality, the generalized Divisia index method （GDIM） was first used to analyze the influencing factors of carbon emission changes from 2001 to 2020, and then Monte Carlo simulation was used to conduct a dynamic scenario simulation of the carbon emission evolution trends from 2021 to 2035. The results showed that： ① Economic output and crude steel production were the most important factors contributing to the increase in carbon emission in the iron and steel industry； among the factors contributing to the decrease, the carbon intensity of economic output had the most significant effect, followed by the carbon intensity of production, and the energy consumption per ton of steel and the energy output rate did not have a significant effect on the decrease in carbon emissions. ② Under the scenario BAU, scenario L, and scenario S, the iron and steel industry could achieve carbon emission peaking in 2030, 2025, and 2020, respectively.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6336-6343"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142772842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Coupling Relationship and Interactive Response between Pollution Control and Carbon Emission Reduction and High-quality Economic Development in China's Urban Agglomerations].","authors":"Xiao-Long Chen, Qian-Bin Di, Chen-Lu Liang","doi":"10.13227/j.hjkx.202311229","DOIUrl":"https://doi.org/10.13227/j.hjkx.202311229","url":null,"abstract":"<p><p>The coordinated development of the carbon neutral peak target and dual cycle strategy is an important link to realize the transformation of ecological green and low carbon and also an important carrier of high-quality economic development. Based on the inherent requirements of the synergistic effect of pollution control and carbon emission reduction and high-quality economic development, the coupling mechanism of pollution control and carbon emission reduction and high-quality economic development was discussed. Taking the three major urban agglomerations in China as examples, the comprehensive index system of the synergistic effect of pollution control and carbon emission reduction and high-quality economic development were constructed, respectively. The comprehensive evaluation model, coupling coordination degree model, and panel vector autoregression （PAVR） model were used to empirically analyze the coupling and interaction between the synergistic effect of pollution control and carbon emission reduction and high-quality economic development in the three major urban agglomerations in China from 2010 to 2020. The research showed that： ① The comprehensive development index of pollution control and carbon emission reduction and high-quality economic development showed an overall growth trend. The comprehensive level of pollution control and carbon emission reduction synergy in the Yangtze River Delta urban agglomeration was better than that in the Pearl River Delta urban agglomeration and Beijing-Tianjin-Hebei urban agglomeration. There were significant differences in the level of high-quality economic development among cities, and the overall level was high. ② From the perspective of the coupling relationship, during the study period, the level of reluctant coordination entered the primary coordination level and finally evolved into the intermediate coordination level. The spatial characteristics showed the characteristics of contiguous development centered on cities with higher administrative levels, such as municipalities and provincial capitals. ③ From the perspective of the dynamic relationship, there was a positive interaction between pollution control and carbon emission reduction and high-quality economic development, that is, the development of the two could promote each other. The response of pollution control and carbon emission reduction in the Yangtze River Delta and Pearl River Delta urban agglomerations to the positive impact of high-quality development was higher than that in the Beijing-Tianjin-Hebei urban agglomeration.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6313-6325"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Ecosystem Service Value Estimation and Ecological Security Pattern in Heilongjiang Province].","authors":"Song Cui, Xian-Lei Du, Zhao-Yang Jia, Qiang Fu, Dong Liu","doi":"10.13227/j.hjkx.202312122","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312122","url":null,"abstract":"<p><p>To maintain ecosystem functions and ensure ecological security, estimating the value of ecosystem services and constructing an ecological security pattern are necessary. Considering the lack of systematic research on the estimation of ecosystem service value and the construction of ecological security pattern, this study extracted the ecological source based on the analysis of ecosystem service value and morphological spatial pattern. According to the natural conditions such as geographical location and altitude, land use type, landscape pattern type, elevation, slope, and normalized difference vegetation index were selected to establish the resistance surface. The minimum cumulative resistance model was used to identify potential ecological corridors, so as to construct the ecological security pattern of Heilongjiang Province, and longitudinal analysis was conducted from 2000 to 2020. The results showed that： ① The overall value of ecosystem services in Heilongjiang Province showed an upward trend （with an amplitude of 42%）, the value of hydrological regulation services accounted for the largest proportion among different service types （approximately 30%）, and the value of forest land services accounted for the largest proportion among different land use types （up to 70%）. ② Eight ecological source areas were extracted, mainly distributed around Greater Khingan Mountains, Lesser Khingan Mountains, Changbai Mountain, and Wanda Mountain, with the largest area of ecological source in Greater Khingan Mountains. ③ Twenty-eight potential ecological corridors were identified, mainly distributed in the northeastern side of the line from Heihe City to Mudanjiang City, forming densely populated areas in Qitaihe City, northern Mudanjiang City, and southern Jixi City. ④ An ecological security network pattern in Heilongjiang Province was constructed with Greater Khingan Mountains Region, Mudanjiang City, and Shuangyashan City as endpoints and Yichun City as the center, finding that the main problem faced at that time was uneven spatial distribution. The research results are helpful to formulate and establish more reasonable ecological environment protection measures and policies and can provide reference value and scientific basis for provincial ecosystem protection and optimization.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6489-6500"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Spatial and Temporal Evolution Characteristics of Agricultural Carbon Offset Rate and Prediction of Carbon Offset Potential in the Yangtze River Economic Belt].","authors":"Jing Tang, Lu Yi, Qing-Jun Zeng","doi":"10.13227/j.hjkx.202312030","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312030","url":null,"abstract":"<p><p>Based on the panel data of prefecture-level cities and above and provincial-level cities in the Yangtze River Economic Belt, respectively, this study measured the agricultural carbon emissions, carbon sinks, and carbon offset rates from 2006 to 2021 and analyzed their evolution characteristics. Based on the STIRPAT model and ridge regression analysis, this study identified the factors affecting agricultural carbon emissions in the 11 provinces and municipalities in the Yangtze River Economic Zone, combined them with the scenario analysis method to predict the agricultural carbon emissions under the baseline scenario in the period of 2022 to 2025, and analyzed the process of \"carbon peaking.\" Simultaneously, this study predicted the agricultural carbon sinks of 11 provinces and cities from 2022 to 2025 and then speculated their agricultural \"carbon neutral\" process under the framework of agricultural carbon compensation rate, so as to summarize the effective paths for different provinces and cities to achieve agricultural \"carbon peak and carbon neutral.\" The results showed that： ① Changes in agricultural carbon emissions in the Yangtze River Economic Zone during the observation period followed an inverted U-shape and peaked in 2015 at 33 312.65×10⁴ tons. The fluctuation of agricultural carbon sinks was relatively small, with an overall upward trend. The upward trend of the agricultural carbon offset rate was obvious, but it still belonged to the \"net carbon emission\" region. ② Regional differences of agricultural carbon offsetting rate were prominent, and there was a polarization phenomenon, with \"net carbon sink\" cities significantly less than \"net carbon emission\" cities. ③ Shanghai, Zhejiang, and Sichuan reached the peak of agricultural carbon emissions in 2006, which Anhui and Chongqing reached in 2012, and the rest of the provinces and municipalities showed a clear upward trend. ④ Anhui, Chongqing, Sichuan, and Yunnan crossed the \"agricultural carbon neutral line\" and achieved agricultural carbon neutrality. Jiangsu was expected to achieve this in 2026-2030, whereas the remaining provinces and municipalities faced greater difficulties.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6378-6391"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Spatial Relationship between Eco-environment Quality and Land Use Change in Guangdong Province-Hong Kong-Macao, China Based on Remote Sensing-based Ecological Index].","authors":"Zhi-Yong Chen, Yao-Wei Wu, Gang-Te Lin, Jian-Zhou Gong","doi":"10.13227/j.hjkx.202310211","DOIUrl":"https://doi.org/10.13227/j.hjkx.202310211","url":null,"abstract":"&lt;p&gt;&lt;p&gt;The relationship between eco-environment quality and land use change is an important guarantee for regional sustainable development. Guangdong Province-Hong Kong-Macao have always been closely linked and are now entering a period of accelerated development, but there is a lack of research on the spatial relationship between eco-environment quality and land use change integrated among the three places. Based on historical land use data and Google earth engine （GEE）, MODIS images from the summer of 2000 to 2020 （from June 1 to September 1） were selected （with a time span of five years）. The remote sensing-based ecological index （RSEI） was calculated to characterize the status of eco-environment quality and explore the spatial relationship between eco-environment quality and land use change. The results showed that： ① The land use type in the study area was mainly forest land, which was the base of the northern ecological development area （ecological area） and the northwestern landscape of the Guangdong-Hong Kong-Macao Greater Bay Area （the Greater Bay Area）. The land use degree presented a spatial pattern of \"high in the middle, low in the periphery,\" \"high in the south and low in the north,\" and \"high in the southwest and northeast.\" The intensity of land use change was the least in the ecological area. ② According to RSEI, the regions with an eco-environment quality from low to high were the Greater Bay Area, the eastern wing of the coastal economic belt （east wing）, the western wing of the coastal economic belt （west wing）, and the ecological area. ③ There was a strong negative correlation between eco-environment quality and land use degree. The distribution range of high to low （H-L） cluster was relatively stable, mainly concentrated in the center of the Greater Bay Area, while the distribution of low to high （L-H） cluster was relatively unstable, mainly distributed in the ecological region, and there was no significant correlation between the eastern and western counties, Hong Kong and Macao. ④ The low-value patches of ecological environment quality in Guangdong-Hong Kong-Macao centers were consistent with artificial surface expansion. The center of Foshan in Guangzhou, the eastern part of Shantou, and the southwestern part of Zhanjiang were mainly coupled, while the ecological area, the central part of the east wing, the eastern part of the west wing, and the northwestern part of the Greater Bay Area were mainly uncoupled. Land use change and eco-environment quality were closely related in space. The eco-environment quality of the study area mainly presented a spatial pattern of \"high in the middle and low in the north\" and \"a certain low value in the east.\" The Greater Bay Area had the lowest eco-environment quality, followed by that of the eastern wing. In the past 20 years, the expansion of low-value eco-environment quality in the center of the Greater Bay Area had formed a continuous landscape base of low-value eco-environment quali","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6433-6447"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Atmospheric HONO Concentration Levels and Generation Mechanisms in Nanjing in Winter and Summer].","authors":"Yi Zhang, Fang Cao, Mei-Yi Fan, Yan-Kun Xiang, Han-Yu Li, Yong-Wen Xue, Yan-Lin Zhang","doi":"10.13227/j.hjkx.202312145","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312145","url":null,"abstract":"<p><p>HONO, or gaseous nitrous acid, has a significant impact on air quality and climate. An atmospheric gaseous nitrous acid （HONO） observation study was carried out in December 2021 （winter） and July 2022 （summer） in the Jiangbei New District of Nanjing City, respectively. Using the HONO concentration observation data, combined with the atmospheric NO<i>_x</i> and O₃ concentrations during the sampling period as well as the reaction rate of the HONO generation process and other parameters, we compared and analyzed the change rule of the atmospheric HONO concentration during winter and summer in the Nanjing area, quantitatively investigated the sources of diurnal atmospheric HONO and its generation mechanism, and explored the unknown sources of atmospheric HONO during the daytime. The results showed that the mean value of atmospheric <i>ρ</i>（HONO） in the Nanjing area during winter was （2.2±1.1） μg·m^-3, which was 3.0 times the average concentration [（0.72±0.45） μg·m^-3] during summer. The atmospheric HONO concentrations during winter and summer showed a significant daily pattern of low during the daytime and high at nighttime. Based on the reaction rates of different HONO generation pathways, it was calculated that the non-homogeneous reaction of NO₂ was the main pathway of atmospheric HONO generation at night in Nanjing. The analysis of the atmospheric HONO balance during the daytime showed that there existed an important unknown source of HONO during the daytime （<i>P</i>_unknown）, and its contribution to the daytime atmospheric HONO concentration was 69% during winter and 47% during summer, respectively. The results of correlation analysis showed that <i>P</i>_unknown was related to the light-catalyzed reaction of NO₂ during the daytime.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6286-6293"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142772823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Population Dynamics and Key Influencing Factors of <i>Microthrix parvicella</i> Caused Sludge Bulking].","authors":"Gao-Xin Su, Rong Qi, Shu-Min Xiao, Dian-Cheng Dou, Yu-Xin Guo, Jia Gao","doi":"10.13227/j.hjkx.202312026","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312026","url":null,"abstract":"<p><p>Given the frequent occurrence of the sludge bulking phenomena caused by <i>Microthrix parvicella</i> （<i>M. parvicella</i>） overgrowth during the low-temperature period in the full-scale municipal wastewater treatment plant, the filamentous bacteria dynamics of the <i>M. parvicella</i> population were systematically investigated during the completed bulking period using the multi-dimensional integrated filamentous monitoring method combined with the molecular quantitative method. A lab-scale reactor was constructed and successfully simulated bulking phenomena under the low-temperature condition. The trend of dominant filamentous bacterial shift and the main influencing parameters were estimated during the bulking period, to verify the key factors for filament growth and extinction of the sludge bulking phenomenon in the full-scale plant. The results showed that the bulking-caused <i>M. parvicella</i> was characterized by significant changes in the diversity of filamentous bacteria, and the dominant filamentous bacterial succession was reflected in the competition between the skeleton filamentous bacteria Type 0092 and Type 0041 and <i>M. parvicella</i>. At lower temperatures, sludge loading was an important controlling factor for the competitive growth advantage of <i>M. parvicella</i>： when the temperature was lower （approximately 15°C）, low sludge loading [0.05 kg·（kg·d）^-1] could lead to the stabilized elevation of <i>M. parvicella</i>, and with the loading increased to 0.1 kg·（kg·d）^-1 or more, <i>M. parvicella</i> populations showed a targeted decline despite the presence of the low temperature factor.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6766-6774"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142772847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Characterization of the Community Structure of Rhizosphere Soil and Root-endophytic Bacteria in Different Shrubs].","authors":"Jian-Hua Hao, Xiu-Juan Zhang, Jun-Jian Li","doi":"10.13227/j.hjkx.202311212","DOIUrl":"https://doi.org/10.13227/j.hjkx.202311212","url":null,"abstract":"<p><p>In the process of ecological restoration, vegetation plays a crucial role in restoring ecosystem functions. Soil microorganisms are essential components of soil ecosystems, driving material cycling processes and enhancing plant productivity and resilience. This study aimed to investigate the community structure characteristics of rhizosphere soil and root-endophytic bacteria in different shrubs. Specifically, the composition of rhizosphere soil and root-endophytic bacteria in <i>Cotoneaster acutifolius Turcz., Lonicera japonica Thunb.</i>, and <i>Cornus alba L.</i> in the loess hilly area of northwest Shanxi was determined using Illumina high-throughput sequencing technology. The results revealed that the dominant phyla of rhizosphere soil bacteria and root-endophytic bacteria in different shrubs were Proteobacteria and Actinobacteria. Additionally, the genera of rhizosphere soil and root-endophytic bacteria differed. Furthermore, the species richness and diversity index of rhizosphere soil bacteria were significantly higher than those of root-endophytic bacteria （<i>P</i> &lt; 0.05）. It was also observed that approximately 64% of the root-endophytic bacteria in the shrubs were present in the rhizosphere soil bacteria, indicating similarity in the bacterial community compositions of different niches. Redundancy analysis （RDA） and Pearson correlation analysis revealed that soil dehydrogenase, soil <i>N</i>-acetyl-<i>β</i>-D glucosidase, alkaline protease, pH, and total phosphorus were the main influencing factors on the bacterial community structures in root-endophytic bacteria （<i>P</i> &lt; 0.05）, while alkaline protease, pH, total carbon, and total nitrogen significantly impacted rhizosphere soil community structures （<i>P</i> &lt; 0.05）. Additionally, the partial least squares path model （PLS-PM） indicated that vegetation could directly affect bacterial communities and indirectly affect them by influencing soil physicochemical properties and soil enzyme activity. In conclusion, the findings of this study provide a theoretical foundation for further research on the relationship between endophytic bacteria and resistance in shrubs.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6756-6765"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Seasonal Prediction Model for Airborne Pollen Content in Beijing Urban Area].","authors":"Zuo-Fang Zheng, Yao-Ting Wang, Wen Qi, Hua Gao","doi":"10.13227/j.hjkx.202312004","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312004","url":null,"abstract":"<p><p>Airborne pollen is considered to be one of the air pollutants that can cause allergic reactions in humans, leading to the occurrence or aggravation of a series of allergic diseases. The latest study showed that the positive rate of pollen allergens in allergic rhinitis patients in urban areas of Beijing exceeded 80%. Accurate prediction of pollen content could provide more effective assistance to susceptible populations. Based on the measured data from multiple stations in the urban area of Beijing during the pollen season from 2021 to 2022, the spatiotemporal distribution characteristics of pollen content were analyzed. The results showed that the main meteorological factors affecting spring pollen content in the urban area of Beijing were daily average wind speed, 3-day average temperature, water vapor pressure, daily average, temperature, and accumulated temperature. The main meteorological factors affecting autumn pollen content were 3-day average temperature, water vapor pressure, minimum surface temperature, and daily average temperature. In addition, it was found that there was a consistent spatial correlation between the current air pollen content and meteorological elements in the urban area of Beijing, but this correlation had significant seasonal differences. Furthermore, the Granger causality test method was applied to select the main meteorological factors that affected airborne pollen content in the urban area of Beijing, and two prediction models for air pollen content in the Beijing urban area for different seasons were established based on the support vector machine method （SVM） and multiple linear regression theory. The test of the prediction results for 2023 showed that both the SVM model considering seasonal differences and the multiple linear regression model could predict the daily distribution trend of pollen content well. The overall correlation coefficients between the predicted pollen content and the measured values were 0.693 and 0.636 （<i>P</i> &lt;0.01）, respectively. Additionally, both models had good predictive ability for several severe content pollen pollution events within the year. In the spring of 2023, the prediction accuracy of the SVM model and linear model were 61.2% and 60.1%, respectively. During autumn, the prediction accuracy was 68.1% and 66.7%, respectively. The performance was better than that of existing business models, especially in the cross-level error improvement of heavy pollution event prediction. The research results provide reference value for further improving the prediction technology of airborne pollen content in the Beijing area.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6294-6300"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Effects of Polyethylene Microplastics on the Growth and Quality of <i>Brassica campestris</i> L. in a Three-season Consecutive Cultivation].","authors":"Zhu-Qing Yang, Min Yang, Dao-You Huang, Min Huang, Qi-Hong Zhu","doi":"10.13227/j.hjkx.202312189","DOIUrl":"https://doi.org/10.13227/j.hjkx.202312189","url":null,"abstract":"<p><p>In order to investigate the effects of polystyrene （PS） microplastics with different particle sizes on the growth, development, and quality of <i>Brassica campestris</i> L. （Chinese cabbage） in consecutive seasons, we studied the effects of PS plastics with different particle sizes （&lt;25, 25-48, 48-150, and 150-850 μm） on the growth and development of <i>B. campestris</i> L. and on the supply of nutrients to the soil in a potting experiment in three consecutive seasons. The results showed that PS microplastics had a significant inhibitory effect on the growth of Chinese cabbage in three consecutive seasons, and the fresh weight, chlorophyll b, and total chlorophyll content of Chinese cabbage were reduced by 9.22%-30.4%, 51.5%-88.9%, and 25.3%-67.1%, respectively. PS microplastics also affected the quality of Chinese cabbage in three seasons and significantly reduced cabbage starch （20.6%-73.2%）, Mn （23.9%-56.3%）, Zn （18.8%-23.2%）, and Cu （18.9%-35.1%） and increased its soluble sugar content （18.9%-220%）. Soil quick-acting phosphorus and quick-acting potassium content under the influence of PS microplastics showed the largest decreases of 26.0% and 55.8%, respectively, but had no significant effect on the effective Cu, Fe, Zn, and Mn contents. Overall, the effect of PS microplastics on the growth and quality of Chinese cabbage increased with the decrease in particle size and decreased with the increase in consecutive planting seasons； however, there was no obvious pattern of change in the effect of PS microplastic particle size on the soil fast-acting nutrient content.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"45 11","pages":"6645-6653"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}