工业工程最新文献

{"title":"[Characteristics of Heavy Metal Pollution, Potential Ecological Risk, and Sources in the Cultivated Soil of Anqing City in the Yangtze River Basin].","authors":"Hai Liu, Qian Pan, Wei Wei, Jian-Min Huang, Yang Song, Guo-Hong Zhao, Xu-Dong Wang","doi":"10.13227/j.hjkx.202405120","DOIUrl":"https://doi.org/10.13227/j.hjkx.202405120","url":null,"abstract":"<p><p>To investigate the status of heavy metal pollution, potential ecological risks, and sources in the arable soil of the Yangtze River Basin, the surrounding area of Anqing city was selected as the research site. A total of 222 surface soil samples were collected, and the concentrations of eight heavy metals-arsenic （As）, cadmium （Cd）, chromium （Cr）, copper （Cu）, mercury （Hg）, nickel （Ni）, lead （Pb）, and zinc （Zn）-along with soil pH values were analyzed. The pollution characteristics and ecological risks of heavy metals were evaluated using methods, such as the pollution index, geo-accumulation index, and potential ecological risk index. Source apportionment was conducted using the APCS-MLR receptor model. The results indicated that the soils in the study area were primarily acidic. The average concentrations of <i>ω</i>（Cd）, <i>ω</i>（Hg）, <i>ω</i>（As）, <i>ω</i>（Pb）, <i>ω</i>（Cr）, <i>ω</i>（Cu）, <i>ω</i>（Ni）, and <i>ω</i>（Zn） were 0.20, 0.13, 8.18, 32.52, 71.24, 30.44, 33.38, and 100.84 mg·kg^-1, respectively. Except for As, the concentrations of the other elements were all higher than the background values of the Jianghuai Basin. Cd and Hg were identified as the main pollution characteristic factors in the study area, with Hg mostly ranging from slight to moderate pollution and a few samples of Cd at a slight pollution level. The potential ecological risk assessment showed that the area was mostly at a moderate pollution level. Cr and Ni were primarily derived from natural sources； Cd, As, and Pb mainly from agricultural sources； and Hg, Cu, and Zn predominantly from industrial sources. The contributions of natural sources, agricultural sources, industrial sources, and unknown sources to soil heavy metal pollution in the study area were 28.15%, 36.07%, 12.90%, and 22.80%, respectively. The findings provide data support for soil pollution prevention and control measures in the region.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"3248-3260"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102863","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":"[Comprehensive Evaluation of Ecosystem Services in Garzê Prefecture Based on the Dynamic Coupling Relationship of Water-soil-carbon].","authors":"Meng Li, Ya-Qi Li, Min Fan, Le-le Zhou, Xiao-Bin Yu","doi":"10.13227/j.hjkx.202405240","DOIUrl":"https://doi.org/10.13227/j.hjkx.202405240","url":null,"abstract":"&lt;p&gt;&lt;p&gt;The Garzê Tibetan Autonomous Prefecture, situated in the upper reaches of the Yangtze and Yellow Rivers, serves as an alpine ecologically fragile area and an important ecological barrier. Therefore, the comprehensive assessment of ecosystem services in Garzê Tibetan Autonomous Prefecture is important for maintaining sustainable development. Based on the dynamic coupling relationship of water-soil-carbon, this study utilizes the water balance method-RULSE-InVEST ecosystem services portfolio model to calculate the ecosystem services in Garzê Tibetan Autonomous Prefecture from 2000 to 2020. Additionally, a spatial autocorrelation model is then employed to explore the spatial heterogeneity of ecosystem services. Consequently, a comprehensive assessment model for quantitatively evaluating the ecological environment quality in this region is constructed. The findings revealed that： ① On the time scale, soil conservation decreased by 25.5 million t from 2000 to 2020, which was related to increased soil erosion caused by climate change and human activities. However, water conservation and carbon storage increased by 22.422 billion m&lt;sup&gt;3&lt;/sup&gt; and 41 million t from 2000 to 2020, respectively, which was related to the implementation of the measures to return grazing land to grassland. ② From the spatial scale, the mean value of ecosystem service at administrative units exhibited a distribution pattern characterized by lower values in the northwest and higher values in the southeast. The southeastern region predominantly consisted of grassland and woodland vegetation coverage. Notably, Garzê, Luding, and Jiulong Counties recorded the highest values at 512.44 mm, 3 438.25 t·hm&lt;sup&gt;-2&lt;/sup&gt;, and 34 658.28 t·km&lt;sup&gt;-2&lt;/sup&gt;, respectively. ③ In 2020, water conservation-soil conservation and water conservation-carbon storage in Garzê Tibetan Autonomous Prefecture showed negative spatial correlation on the dual scale of administrative unit and grid, and the low aggregation was distributed in the southeast of the study area. On the other hand, the spatial positive correlation between carbon storage and soil conservation showed a synergistic relationship, with high concentrations distributed in the northwest of the study area. ④ From the administrative unit perspective, the average score of ecosystem services comprehensive assessment based on accumulative and multiplicative showed a trend of first increase, then decrease, and then increase, with the highest values in Jiulong County ranging from 2.51 to 3.00 and 0.71 to 0.80, respectively. Similarly, from the grid scale perspective, the scores of ecosystem services comprehensive assessment also showed a trend of first increase, then decrease, and then increase, and the highest values were distributed in the southeast, with the values ranging from 2.01 to 3.00 and 0.41 to 0.80, respectively. In summary, the results of this study and the assessment framework provide a theoretical basis for ecological environme","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"3070-3084"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102867","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":"[Dynamics and Attribution of Vegetation Coverage in the Water-source Area of the Central South-to-North Water Diversion from 2000 to 2022].","authors":"Yong-Tao Jiang, Li-Mei Wang, Song-Feng Gao, Lei-Xiang Ding, Cai-Li Zhang","doi":"10.13227/j.hjkx.202406260","DOIUrl":"https://doi.org/10.13227/j.hjkx.202406260","url":null,"abstract":"<p><p>The water-source area of the central South-to-North Water Diversion （WSA-CSNWD） is a nationally strategic water source and an important ecological function protection area in China. Studying the dynamics and causes of fractional vegetation coverage （FVC） is crucial for the protection and restoration of the ecological environment in WSA-CSNWD, as well as for ensuring the successful operation of the central South-to-North Water Diversion project. By utilizing MODIS NDVI data from 2000 to 2022, combined with land use data, meteorological data, human footprint data, and water body data, this study employs trend analysis, correlation analysis, regression analysis, and statistical analysis to explore the spatio-temporal dynamic changes of FVC in WSA-CSNWD and its underlying causes. The results indicate that： ① The WSA-CSNWD exhibited high vegetation cover with a significant increasing trend of FVC during 2000-2022 at an average annual growth rate of 0.004 0 per year. From 2000 to 2022, there was a significant decrease in FVC area within WSA-CSNWD accounting for 1.301%, primarily located in urban areas； meanwhile, there was a substantial increase in FVC area accounting for 84.965%, mainly distributed across grasslands and areas influenced by human activities. ② Surface temperature and human activities were identified as key factors influencing FVC change within WSA-CSNWD. In areas with significant increases in FVC, surface temperature exhibited a negative correlation with FVC change, while human footprint intensity showed a positive correlation with FVC change-indicating that human activities played an important role in promoting changes to vegetation coverage. ③ Human land use management, including water conservation, ecological environmental protection, and restoration projects, was identified as the primary driver behind vegetation greening in this area. Forests, grasslands, and farmlands accounted for 45%, 47%, and 4%, respectively, of areas where FVC significantly increased. These findings indicate that the observed increase in FVC was primarily attributed to human land use management practices, as WSA-CSNWD is located in a temperate subhumid North subtropical monsoon climate region and serves as both a nationally strategic water source and an important ecological function protection area in China.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"3009-3020"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102458","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 Flow Concentration on Water Microplastic Pollution in the Luoshijiang Sub-watershed of Erhai Lake Basin].","authors":"Liu-Yun Dai, Lei Hou, Hua Wang, Li-Song Fu, Yan-Xia Wang, Xiao-Lin Li, Wan-Bin Wang, Qi-Bin Liang","doi":"10.13227/j.hjkx.202404309","DOIUrl":"https://doi.org/10.13227/j.hjkx.202404309","url":null,"abstract":"<p><p>With the wide application of plastics, the environmental problems and health risks brought by microplastics are gradually becoming prominent and the effects of flow concentration on the microplastic pollution in the water environment of a closed sub-watershed remain unclear. Therefore, a comprehensive survey was carried out at the sub-watershed scale to explore the distribution characteristics of microplastic pollution in the water of tributaries, main streams, and lakes of the Luoshijiang sub-watershed in the Erhai Lake Basin. The effects of flow concentration on water microplastic pollution were also analyzed. The results showed that： ① The abundance of microplastics in the water of the stemflow （14 500 n·m^-3） and lake （16 562 n·m^-3） was significantly higher than that of tributaries （8 714 n·m^-3,<i>P</i>&lt;0.05） in the Luoshijiang sub-watershed. The main polymer types were rayon （47.16%） and polyester （38.41%）. The particle size of microplastics was concentrated in the range of 0.2-1 mm （73.59%）, and more than 99.37% of microplastics were fiber-shaped, and the main color was transparent （65.08%）. ② The microplastic diversity index followed the sequence as main stream&gt;tributary&gt;lake. The stemflow had the highest abundance and polymer and color types of microplastics. The flow concentration in the river showed a net increase in the microplastic abundance and diversity index of the main stream. ③ The pollution characteristics of microplastics including particle size （0.2~0.5, 0.5~1, and 1~2 mm）, color, and shape in water showed a significant positive correlation with that in adjacent soil （<i>P</i>&lt;0.05）. Soil and water PES, 0.5-1 mm microplastic distribution, and microplastic size diversity showed higher similarity. The overland flow caused soil microplastics to migrate into water. In the Luoshijiang sub-watershed with the independent and enclosed features, the flow concentration altered the migration and distribution of microplastics. Plastic pollution control and source reduction at a small watershed scale should be strengthened.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"2708-2718"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102485","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":"[Simulation and Motivation Analysis of Agricultural Nitrogen Non-point Source Pollution in North Intensive Farming Area].","authors":"Ying Yu, Guang-Xing Ji, Yi-Nan Chen, Qian-Wen Weng, Wei-Qiang Chen","doi":"10.13227/j.hjkx.202405212","DOIUrl":"https://doi.org/10.13227/j.hjkx.202405212","url":null,"abstract":"<p><p>Understanding the patterns and drivers of agricultural non-point source pollution is crucial for regional ecological governance. Here, we focused on simulating non-point source nitrogen pollution in agricultural areas of the north intensive farming area. Utilizing the InVEST model, ArcGIS hot spot analysis tool, and geodetector, we deeply analyzed the sources, loss loads, key source areas, and driving factors of agricultural non-point source nitrogen pollution from 2000 to 2020. The results showed that： ① Agricultural nitrogen input intensity in the north intensive farming area exhibited a decreasing trend from 2000 to 2020, with a spatial pattern of \"low in the north and high in the south,\" primarily driven by nitrogen fertilizer application and livestock breeding. ② Nitrogen emission intensity in each city decreased significantly over the study period, showing an overall spatial pattern of \"low in the northwest and high in the southeast.\" ③ The scope of key source areas experienced a shift from initial narrowing to subsequent expansion. ④ Rainfall emerged as the primary driving force influencing the spatial variation in agricultural nitrogen emission intensity, with its interaction with DEM and slope further accentuating the differentiation. The results of this study can provide a scientific basis for regional agricultural environmental protection policies, thereby promoting the healthy and sustainable development of the agricultural ecosystem.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"2783-2792"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102801","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":"[Analysis on the Trade-off Relationship between Carbon Storage and Non-point Source Pollution Load and Its Influencing Factors in the Dongjiang River Source Basin].","authors":"Xing-Gen Liu, Jing-Feng Qiu, Jin-Feng Zeng, Ze-Yu Wu","doi":"10.13227/j.hjkx.202404107","DOIUrl":"https://doi.org/10.13227/j.hjkx.202404107","url":null,"abstract":"<p><p>Revealing the relationship between carbon storage and pollution load is conducive to understanding the mechanism of regional ecosystem service. The carbon storage and pollution load of Dongjiang River Source Basin were analyzed using the ecosystem service assessment and pollution load assessment model. Land use was obtained using a supervised classification method based on a Landsat 8 image in 2018. The InVEST model and carbon density data from literature survey were used to evaluate the carbon storage of Dongjiang River Source Basin. The non-point source pollution load was estimated by the Johnes coefficient model. Regression analysis and redundancy analysis were used to explore the trade-offs and influencing factors between carbon storage and pollution load. The results showed that forest land, cultivated land, and orchard land were the main land use types in the Dongjiang River Source Basin, accounting for 74.7%, 12.0%, and 9.7%, respectively. The carbon storage of the Dongjiang River Basin was 140-180 t·hm^-2, showing a pattern of a wide distribution of hot spots and mosaic of cold spots in space. The pollution load showed a mosaic distribution pattern with the high value area including Tianjiu, Changpu, Wenfeng, and Zhengang and the low value area including Sanbaishan, Sanbiao, and Guizhumao. The pollution discharge of livestock and poultry breeding was one of the main sources of non-point source pollution. Regressive analysis showed the complex relationship between pollution load and carbon storage of Dongjiang River Source Basin. Redundancy analysis showed that both were affected by natural conditions and socio-economic conditions, in which carbon storage was affected more significantly by land use, NDVI, and population and pollution load was affected more significantly by GDP, temperature, and precipitation. The results emphasize the use of ecosystem services trade-off collaborative analysis to identify priority areas for pollution reduction and carbon sequestration.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"2976-2986"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102860","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":"[Community Structure and Functional Groups of Soil Bacteria during Shrub Introduction at Different Densities in the Eastern Desert Steppe of Ningxia].","authors":"Zhi-Li Li, Hong-Mei Wang, Ya-Nan Zhao, Zhi-Gang Li, Zhen-Jie Zhang, Rong-Xia Su, Yan-Shuo Chen","doi":"10.13227/j.hjkx.202404153","DOIUrl":"https://doi.org/10.13227/j.hjkx.202404153","url":null,"abstract":"<p><p>In the 1970s and 1980s, to prevent grassland degradation caused by overgrazing of desert grassland in eastern Ningxia, a large number of a leguminous shrub （<i>Caragana korshinskii</i>） were introduced for revegetation. Over time, and with increasing density, noticeable soil aridification and herbaceous degradation occurred. To explore the effects of \"desert grassland degradation-shrub introduction\" on soil bacterial communities and their roles in soil carbon and nitrogen transformations, we selected enclosed grassland, grazed grassland, and shrublands with different planting spacings （40, 6, and 2 m） as the research objects. Illumina MiSeq high-throughput sequencing technology was employed to investigate differential bacterial communities, species network structures, functional groups, and their relationships with soil factors. The results showed that the relative abundance of Firmicute, Bacteroidota, and Nitrospirota increased in grazed grassland and shrubland compared to that in enclosed grassland. The increase in shrub density promoted the relative abundance of Firmicute. The bacterial carbon functional group of shrubland significantly increased the degradation of carbon compounds, and its nitrogen functional group promoted the availability of soil nitrogen with increasing shrub density compared to that of enclosed and grazed grassland. Shrub introduction reduced the association of bacterial dominant communities and functional groups with soil factors. This was evidenced by regulation through soil organic carbon content and <i>β</i>-1,4-<i>N</i>-acetylglucosidase during degradation and driven by nitrate nitrogen and <i>β</i>-1,4-<i>N</i>-acetylglucosidase during introduction, potentially accelerating soil microbial carbon and nitrogen metabolic processes.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"3287-3295"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102866","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":"Organophosphorus pollutant degradation in wastewater using the microscale zero-valent iron/O3 process: optimization, performance, and mechanism","authors":"Zhenpeng Cai,&nbsp;Yujia Xiang,&nbsp;Boyi Cong,&nbsp;Yang Liu,&nbsp;Shuai Yang,&nbsp;Ningruo Wang,&nbsp;Heng Zhang,&nbsp;Yuzhong Wang,&nbsp;Bo Lai","doi":"10.1186/s42825-025-00195-9","DOIUrl":"10.1186/s42825-025-00195-9","url":null,"abstract":"<div><p>Tetrakis(hydroxymethyl)phosphonium sulfate (THPS) is commonly used as a preservative and fungicide in leather production that leads to its presence in tannery wastewater. As a typical organic phosphorus pollutant, THPS poses potential threats to both the ecological environment and human health. Herein, this investigation used the microscale zero-valent iron (mZVI)/O₃ process to eliminate THPS from aquatic environments. The mZVI/O₃ system demonstrated superior removal performance, achieving high removal efficiencies of total phosphorus (TP), organic phosphorus (OP), and chemical oxygen demand (COD) compared to traditional systems (i.e., mZVI alone, O₃ alone, Fe²⁺/O₃, and Fe³⁺/O₃). Moreover, batch experiments were conducted to optimize the key operational parameters (such as initial pH, mZVI dosage, O₃ concentration, and stirring rate). The TP, OP, and COD removal efficiencies in the mZVI/O₃ system reached 97.10%, 97.31%, and 81.56% within 20 min, respectively, under optimized conditions. Based on the experimental results and characterization analysis, the THPS degradation mechanism by the mZVI/O₃ system was primarily a combination of oxidation (60.37% ± 7.41%) and flocculation (39.63% ± 7.41%). Furthermore, the mZVI/O₃ system demonstrated unprecedented removal performance in various actual wastewater samples. The system eliminated organic pollutants and improved biodegradability of actual wastewater. This study not only establishes the mZVI/O₃ process as a robust, cost-effective, and environmentally sound approach for OP degradation but also offers substantial promise for practical wastewater treatment applications.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-025-00195-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Spatial and Temporal Evolution of Crop Cultivation Carbon Footprint in the Loess Plateau： Driving Force and Trend Prediction].","authors":"Kang Liu, Han Zhang, Ling Wang","doi":"10.13227/j.hjkx.202405096","DOIUrl":"https://doi.org/10.13227/j.hjkx.202405096","url":null,"abstract":"<p><p>Reducing the carbon footprint of crop cultivation is practically important in realizing the goal of \"double carbon\" and sustainable development of agriculture. However, established studies have paid insufficient attention to the spatial and temporal heterogeneity of the factors influencing the carbon footprint of crop cultivation as well as to the future trends of the carbon footprint. The Loess Plateau, as an important ecological barrier in China as well as a typical region for dryland agriculture, has been facing a large carbon footprint pressure on crop production activities in recent years. In view of this, this study measures the carbon footprint of crop cultivation in the Loess Plateau based on the Life Cycle Assessment （LCA） method, captures the evolutionary pattern of the carbon footprint with the help of spatial analysis, identifies the spatial and temporal heterogeneity of the carbon footprint influencing factors by using the GTWR model, and predicts the future trend of the carbon footprint. The study found that： ① The carbon footprint of crop cultivation in general showed an upward and then a downward trend and was characterized by obvious spatial heterogeneity, with high carbon footprints in the cities of Yulin, Weinan, Yuncheng, and Bayannur and low carbon footprints in the eight cities such as Xining and Wuhai. Over time, the carbon footprint gradually evolved from isolated individuals to regional linkages. ② The spatio-temporal patterns and dynamics of the carbon footprint of crop cultivation were influenced by the spatial and temporal heterogeneity of multiple factors. The level of financial support for agriculture, urbanization, and agricultural mechanization could inhibit the carbon footprint of crop cultivation in most cities. The impacts of cropland management scale and fertilizer input intensity were predominantly positive, while raising the replanting index and increasing the effective irrigated areas will exacerbate the carbon footprint of crop cultivation. ③ It was predicted that by 2030, the carbon footprint of crop cultivation in the study area will decrease to 4.271 million hm², with an increasing trend in Shanxi and Inner Mongolia； a significant decrease in Shaanxi and Gansu； and a basically unchanged trend in Ningxia, Qinghai, and Henan. Based on the results of the study, targeted policy recommendations are proposed to reduce the carbon footprint of crop cultivation in the Loess Plateau, and the conclusions and recommendations of the study are useful for the green and low-carbon development of crop cultivation activities in other arid areas.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"3148-3160"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144101968","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":"[Spatio-temporal Evolution Patterns of Terrestrial Ecosystem Carbon Storage in Jiangsu Province Based on Land Use and Cover Change].","authors":"Ge Shi, Yu-Tong Wang, Jia-Hang Liu","doi":"10.13227/j.hjkx.202310037","DOIUrl":"https://doi.org/10.13227/j.hjkx.202310037","url":null,"abstract":"<p><p>Land use and cover change in a region is the main cause of carbon storage changes in terrestrial ecosystems. Exploring the carbon storage based on land use/cover types and predicting the impact of future changes can provide reasonable foundation for a territory development plan under the \"dual carbon\" goal. Since this century, under the joint influence of human social activities and natural factors, the land use situation in Jiangsu Province has undergone significant changes, and the carbon storage of terrestrial ecosystems has correspondingly undergone obvious changes. This study explores the situation of land use/cover data in Jiangsu Province from 1995 to 2020 based on the coupled FLUS-InVEST model. Additionally, it predicts the spatiotemporal distribution of land use/cover and carbon storage in Jiangsu Province in 2030 under multiple scenarios. The results indicate that： ① The period from 1995 to 2020 was a period of severe carbon storage loss, with a total reduction of 36.69 Tg. ② In 2030, under the economic development scenario and natural development scenario, the carbon storage shows a downward trend. The predicted future carbon storage under the ecological protection scenario increases, and the predicted carbon storage under the ecological protection scenario is the highest, with an increase of 18.57 Tg compared to that in 2020. ③ In 2030, the carbon storage in Jiangsu Province under multiple scenarios have similarities in spatial distribution. High value areas of carbon reserves were clustered in the northern, northeastern, and eastern regions of Jiangsu Province, whereas low value areas were clustered in economically developed areas.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"2953-2962"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144102566","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}