Ecological Engineering最新文献

{"title":"Closure process of bauxite tailings facilities: The induction of ecological succession can enhance substrate quality in the initial phase of revegetation","authors":"Mayra de Nazaré Barral das Neves ,&nbsp;Marcos André Piedade Gama ,&nbsp;Junior Hiroyuki Ishihara ,&nbsp;Daniel Pereira da Silva Filho ,&nbsp;Gracialda Costa Ferreira ,&nbsp;Norberto Cornejo Noronha ,&nbsp;Luis Enrique Sánchez ,&nbsp;Jonilton Pantoja Paschoal","doi":"10.1016/j.ecoleng.2024.107400","DOIUrl":"10.1016/j.ecoleng.2024.107400","url":null,"abstract":"<div><p>Within the mining sector, the revegetation process is increasingly recognized as a global imperative for the closure of tailings facilities. Nonetheless, revegetation strategies on bauxite tailings pose a substantial challenge due to very low or non-existent organic matter content in the substrate. The objective of this study was to investigate the efficacy of inducing ecological succession on bauxite tailings substrates. For this purpose, field experiments were conducted during twelve months with varying conditions of organic matter supplementation. In the control treatment (T3), only tree seedlings were planted on unamended tailings; the T2 treatment introduced both tree planting and green manure; the T1 treatment combined tree seedlings, green manure, and decaying wood. Dendrometry variables, phenological phases, litter production, mortality rate (M_r), and soil's physicochemical parameters (organic matter, soil bulk density, porosity, stability, and nutrient content) were assessed. The T1 treatment displayed the highest OM content (27.08 g kg⁻¹) and CEC values (3.40 cmol_c dm⁻³) at 0–5 cm. The highest biomass production by <em>Crotalaria spectabilis Röth</em> was obtained at T1 (7.81 t ha⁻¹), however, <em>Canavalia ensiformis</em> (L.) DC. produced similar amounts of biomass at T1 and T2. Among tree species, <em>Hymenaea courbaril</em> L. showed the highest mortality rate (16 %). The best results of natural colonization were observed at T2 (111 %). The induction of ecological succession enhanced chemical attributes in the surface layer and promoted the establishment of tree species during the initial stages of closing bauxite tailings facilities. The T1 treatment exhibited the most significant enhancements in substrate fertility within the 0–5 cm layer, T2 proved to be the most favorable for the spontaneous entry of shrub and tree species, and T3 represented the slowest method to achieve substrate improvements and plant colonization during the initial stages of revegetation.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107400"},"PeriodicalIF":3.9,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Grazing reduced vegetation biomass and root nutrition related to plateau zokor creating mounds in summer on the Tibetan Plateau","authors":"Zhiying Zhang ,&nbsp;Bin Chu ,&nbsp;Limin Hua ,&nbsp;Rui Dong ,&nbsp;Kechi Dong ,&nbsp;Xincheng Cai ,&nbsp;Jize Liu ,&nbsp;Ruixun Gan ,&nbsp;Longming Dong ,&nbsp;Jing Zhang ,&nbsp;Wenqian Sun ,&nbsp;Jian Sun ,&nbsp;Yujie Niu","doi":"10.1016/j.ecoleng.2024.107404","DOIUrl":"10.1016/j.ecoleng.2024.107404","url":null,"abstract":"<div><p>The plateau zokor is an endemic, subterranean rodent native to the Tibetan Plateau. Its burrowing activity results in numerous bare mounds on the ground. These mounds interfere with plant community succession, affect carbon sequestration, reduce grazing areas, and intensify soil erosion, thus serving as key visual indicators of the zokor's ecological disturbances. Conventional views suggest that zokors primarily dig tunnels and then create mounds for mating and food storage in spring and autumn, respectively. Consequently, former studies have focused on mound creations only during these two periods. However, we found that plateau zokors also create mounds during the summer in the summer pastures. We designed experiments to investigate the environmental variables associated with this summer mound-creating phenomenon, and the results indicate that this behavior is closely related to reduced vegetation biomass and nutrition in summer pastures. We further assessed the nutrition of plants and discovered that increasing mounding activity by zokors in summer corresponds with a decline in plant root quality, including reductions in crude protein, fats, and sugars, as well as fiber contents. Utilizing a random forest model, we found that the decrease in crude protein in plant roots as the principal factor influencing zokor mound creation in summer. These findings offer important insights for developing adaptive management strategies for alpine grasslands and assessing the environmental impact of the plateau zokor in alignment with the different grazing regimes.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107404"},"PeriodicalIF":3.9,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling the recovery time from peak loads in a full-scale horizontal flow wetland in Sicily","authors":"Alessia Rizzo ,&nbsp;Feliciana Licciardello ,&nbsp;Liviana Sciuto ,&nbsp;Giuseppe Luigi Cirelli ,&nbsp;Alba Canet-Martí ,&nbsp;Guenter Langergraber ,&nbsp;Bernhard Pucher","doi":"10.1016/j.ecoleng.2024.107407","DOIUrl":"10.1016/j.ecoleng.2024.107407","url":null,"abstract":"<div><p>The aim of this study was to simulate the water flow and reactive transport of pollutants in a horizontal flow (HF) wetland to better understand the recovery time of the treatment performance for <em>peak load</em> events. For the simulation, the processes-based model HYDRUS and its Wetland Module is used. The system under investigation is the first stage of the 9-years old hybrid treatment wetland of a large retail store, located in Catania, Italy. For the calibration of the hydraulic model, the data of a tracer test was used. The data set of the systems is available for a seven year period including organic matter and ammonia nitrogen. The data was split into a standard event representing low loading conditions and determined <em>peak load</em> events with high loadings. The results show that the response time of the model correlates with the hydraulic retention time from the tracer experiment and indicates that higher peak load concentrations at the inlet of the system lead to a longer recovery time of the wetland.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107407"},"PeriodicalIF":3.9,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0925857424002325/pdfft?md5=7013330824838b1e353249f07c1f9aec&pid=1-s2.0-S0925857424002325-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Sediment dredging temporarily benefits the recovery of Corbicula fluminea in eutrophic lakes","authors":"You Zhang ,&nbsp;Yongjiu Cai ,&nbsp;Wei Li ,&nbsp;Ruijie Shen ,&nbsp;Wenming Yan ,&nbsp;Zhijun Gong ,&nbsp;Kuanyi Li ,&nbsp;Ronaldo Sousa","doi":"10.1016/j.ecoleng.2024.107403","DOIUrl":"10.1016/j.ecoleng.2024.107403","url":null,"abstract":"<div><p>Sediment dredging is an important countermeasure for remediating eutrophic shallow lakes, which may significantly alter benthic fauna via changing sediment characteristics and bottom dissolved oxygen (DO) conditions. However, current understanding on the effects of sediment dredging on bivalves remains unclear. Here, <em>Corbicula fluminea</em>, a native species in Asia undergoing substantial population declines in shallow lakes in the Yangtze River Basin (China) due to eutrophication, was taken as an example to examine the response of freshwater bivalves to dredging. We hypothesized that (1) in hypoxia conditions, sediment dredging benefits the survival of <em>C. fluminea</em> via coarsening the sediment, which would improve DO conditions at sediment-water interface (SWI); and (2) in habitats with sufficient DO, a mixture of coarse sand and fine sediment simulating sediment conditions after dredging, would increase <em>C. fluminea</em> growth since this species is both filter and deposit feeder. To test the above hypotheses, we conducted an outdoor mesocosm experiment that simulated the living conditions of <em>C. fluminea</em> under different dissolved oxygen and sediment type conditions. In addition, we used a 15-year monitoring program of <em>C. fluminea</em> in Lake Taihu that have been experiencing dredging several times to assess possible changes in population dynamics. We found that coarse sediment benefited <em>C. fluminea</em> via improving DO conditions at SWI, indicating that dredging benefits the survival of <em>C. fluminea</em>, which is consistent with our first hypothesis. In sufficient DO conditions, coarse sediment improved growth of <em>C. fluminea</em>, consistent with our second hypothesis. However, in natural ecosystems the effectiveness of sediment dredging is time-limited. Therefore, our results also suggested that sediment dredging should be taken together with other measures, such as pollution reduction and ecological restoration, to recover <em>C. fluminea</em> populations.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107403"},"PeriodicalIF":3.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Mediterranean perennials for extensive green roofs in water-limited regions: A two-year experiment","authors":"Amii Bellini ,&nbsp;Flavia Bartoli ,&nbsp;Alma Kumbaric ,&nbsp;Roberto Casalini ,&nbsp;Giulia Caneva","doi":"10.1016/j.ecoleng.2024.107399","DOIUrl":"10.1016/j.ecoleng.2024.107399","url":null,"abstract":"<div><p>Extensive green roofs (EGRs) play a crucial role in urban environments, offering numerous environmental, economic, and social benefits. However, their performance largely depends on plant selection and adaptation to local climatic conditions. This study investigates the suitability of six perennial Euro-Mediterranean species for EGRs in Mediterranean and semi-arid regions, under different water regimes. A two-year experimental analysis was conducted in Rome (Italy) assessing flowering and mortality rates. Results revealed species-specific responses to irrigation levels, with notable performances observed in <em>Thymus serpyllum</em>, <em>Saponaria ocymoides</em>, and <em>Teucrium chamaedrys</em>, showcasing resilience to water stress. Conversely, <em>Lavandula stoechas</em> and <em>Cerastium tomentosum</em> exhibited sensitivity to water availability, emphasizing the importance of species selection for EGRs. No species completely adhered to the expected flowering period, but showed a general tendency of anticipation, and sometimes an extended flowering period, with some differences between the species. The study underscores the complexity of plant-environment interactions and highlights the need for diversified species composition to enhance EGR functionality and resilience.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107399"},"PeriodicalIF":3.9,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0925857424002246/pdfft?md5=84d60aa3dba142dcba4203728340f654&pid=1-s2.0-S0925857424002246-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Vegetation recovery of rehabilitated pasture at three coal mine sites following fire disturbance","authors":"Phillip B. McKenna ,&nbsp;David Doley ,&nbsp;Natasha Ufer ,&nbsp;Vanessa Glenn ,&nbsp;Stuart Phinn ,&nbsp;Peter D. Erskine","doi":"10.1016/j.ecoleng.2024.107383","DOIUrl":"10.1016/j.ecoleng.2024.107383","url":null,"abstract":"<div><p>Sustainable long-term use of land rehabilitated following mining is required to be resilient to fire and other disturbances. We analysed the vegetation responses to three fires in grassland pasture and open woodland on rehabilitated open-cut coal mine sites in Queensland, Australia. Two fires in central Queensland were controlled burns to manage fuel loads and test the vegetation and landform response, while the third fire, in southeastern Queensland, was an unintended wildfire. We monitored several ecological variables at the study sites for up to five years following the fires and found that vegetation cover, biomass and species richness recovered to pre-fire or unburnt control values within two years. However, one study site experienced lower than average rainfall during the three to five-year post-fire period, resulting in a significant reduction in vegetation cover of between 14 and 31 %, and biomass between 45 and 57 % compared to pre-fire values. Tree and shrub densities changed significantly at two of the sites, reflected in a 635 % increase in stem density of <em>Acacia stenophylla</em> (A.Cunn. ex Benth.) and 82 % mortality of <em>Atriplex nummularia</em> Lindl. <em>subsp. nummularia</em> individuals &lt;2 m in height and 100 % mortality in the 2-5 m height class. The results suggest that rehabilitated pasture systems in central and southern Queensland are resilient to fire in the short-term but are vulnerable to long-term shifts in climate, particularly if a fire precedes a long period of drought. Further resilience work is needed to i) compare rehabilitation recovery with unmined vegetation communities to determine residual risk of future fire impacts, ii) account for seasonality in resilience assessments and iii) understand recovery traits of seed mix combinations sourced from disparate regions.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107383"},"PeriodicalIF":3.9,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0925857424002088/pdfft?md5=8b8fe19f467385a64434bfce3d01239c&pid=1-s2.0-S0925857424002088-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142149780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Pesticides trapping performance of vegetative filter strips in black soil region, Northeast China: controlled experiments and VFSMOD-W modeling","authors":"Liming Yan ,&nbsp;Xinhong Wang ,&nbsp;Yang Ou ,&nbsp;Shujiang Pang ,&nbsp;Qi Cui ,&nbsp;Xia Hou","doi":"10.1016/j.ecoleng.2024.107384","DOIUrl":"10.1016/j.ecoleng.2024.107384","url":null,"abstract":"<div><p>The Northeast black soil region in China is an important grain-producing area where various pesticides are extensively used to increase grain yields. However, this practice poses serious risks to the ecological health of soil and water systems, necessitating effective measures. Vegetative filter strips (VFS) are commonly used to mitigate agricultural diffuse pollutants, but their efficiency varies across different regions, requiring assessment. This study employed flume experiments, the VFSMOD-W model, and redundancy analysis (RDA) to evaluate the efficacy of VFS in runoff, sediment, and pesticide removal, as well as influencing factors. The results showed that VFS reduced outflow rate of runoff by 8 %–64 % and sediment by approximately 90 %, achieving load removal rates of 61 % and 95 % respectively. Pesticide load removal efficiency ranged from 37 % to 94 %, with higher efficiency for adsorbed pesticides like chlorpyrifos compared to water-soluble ones like atrazine. Interflow and vertical seepage were significant pathways for pesticide transport in VFS, with chlorpyrifos concentrations at 4 %–26 % and atrazine at 20 %–37 % of inflow concentrations. The VFSMOD-W model accurately predicted VFS efficiency (NSE &gt; 0.90), and RDA results indicated that environmental factors could explain 86.7 % of the variation in VFS performance, with soil vertical saturated hydraulic conductivity (VKS) being the most influential factor, followed by rainfall intensity (T), saturated soil water content (OS), initial soil water content (OI), and filter slope for each segment (SOA). Optimizing soil moisture characteristic factors and increasing infiltration are crucial for VFS performance. Applying VFSMOD-W for precise VFS design can help reduce construction costs. In the future, long-term field monitoring and evaluation of VFS efficiency after implementation should be conducted in the black soil region of Northeast China to provide data supporting the improvement of VFSMOD-W simulation accuracy. This will also offer recommendations for the government in formulating VFS configuration schemes.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107384"},"PeriodicalIF":3.9,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142149779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inter-annual variation in movements and passage of seaward migrating European eels at a shrouded Archimedean screw pumping station","authors":"Oliver J. Evans ,&nbsp;Liam J. Carter ,&nbsp;Thomas Hutchinson ,&nbsp;Andrew Don ,&nbsp;Rosalind M. Wright ,&nbsp;Henrik Baktoft ,&nbsp;Ine S. Pauwels ,&nbsp;Jonathan D. Bolland","doi":"10.1016/j.ecoleng.2024.107389","DOIUrl":"10.1016/j.ecoleng.2024.107389","url":null,"abstract":"<div><p>The construction of less damaging (here called fish-friendly) pumping stations has taken place in recent years, but it is unknown if they provide efficient and timely passage to migratory fish, such as European eel (<em>Anguilla anguilla</em> (L.)). The pump is often the only downstream passage route and operation, i.e., fish passage opportunity, is temporally variable depending on precipitation and prevailing river levels. Once the pumps are operating, eels must also consider the pumping station an attractive downstream passage route. Here, the movement of seaward migrating silver European eel (<em>n</em> = 59) upstream of a fish-friendly shrouded Archimedean Screw Pump (ASP) was assessed during three migrations (December–March in 2018/19, 2019/20 and 2020/21) with highly contrasting hydrology using acoustic telemetry. The overall passage rate was low (36.8 %) and minimum passage time was 65.2 days during a year with very little pump operation (2018/19), with seven eels tagged with long-life transmitters passing the pumping station the following year (2019/20). Furthermore, the median number of approaches to the pumping station was seven, with 36.8 % (<em>n</em> = 7) approaching more than 10 times. By contrast, passage rate was high (95.0 %), maximum passage time was 2.7 and 34.0 days (minimum = 3 min in both years) and all but one eel passed during the first approach during the two wettest years (2019/20 and 2020/21). Eels were almost exclusively nocturnal, regardless of pump operation, with 96.1 % of total approaches occurring between sunset and sunrise and no eels passed downstream during the day. Ultimately, limited eel passage opportunity during dry periods and a reluctance to pass when operational curtailed the effectiveness of these pumps to provide efficient and timely passage. Thus, measures are required to align pump operation with the timing of eel migration, especially in dry years, and reasons for retreat from the pumping station during operation must be identified and alleviated.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107389"},"PeriodicalIF":3.9,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0925857424002143/pdfft?md5=bda4cd04a17dac160903cf08e347cc42&pid=1-s2.0-S0925857424002143-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142149781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Multilayer partially saturated vertical flow wetlands for advanced small community wastewater treatment","authors":"Sukhjit P. Singh ,&nbsp;Chris C. Tanner ,&nbsp;James P.S. Sukias ,&nbsp;Mark C. Lay ,&nbsp;Graeme D.E. Glasgow","doi":"10.1016/j.ecoleng.2024.107390","DOIUrl":"10.1016/j.ecoleng.2024.107390","url":null,"abstract":"<div><p>This study evaluated the performance of four types (zeolite, gravel, complete woodchip, and vertical shaft) of pilot-scale partially saturated vertical flow wetlands for treating domestic wastewater. The zeolite-woodchip PSVF design achieved a mean total nitrogen removal of 80 % and also performed best in terms of ammonium-N removal (99 %). The complete woodchip design also achieved a similar mean reduction in TN but by having better nitrate removal. The corresponding changes in alkalinity and nitrogen species measured above and below the unsaturated zones of the PSVF suggest that classical nitrification and denitrification are the main mechanisms involved in nitrogen removal. All four systems achieved &gt;95 % removal for biochemical oxygen demand and total suspended solids. Phosphorus removal was 55 % for zeolite, gravel and vertical shaft, and 37 % for the complete woodchip system. The elimination of <em>E. coli</em> ranged between 1.7 and 2.8 log₁₀ in all four systems, with the complete woodchip PSVF delivering the highest reduction. PSVF wetlands can provide effluent quality equivalent to multistage hybrid systems while occupying a significantly lower footprint without additional power requirements.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"209 ","pages":"Article 107390"},"PeriodicalIF":3.9,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0925857424002155/pdfft?md5=8a77533bb39c3fc8cc00b313d0153dcd&pid=1-s2.0-S0925857424002155-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142149782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

{"title":"Developing a sustainable nature-based agricultural vertical system in cadmium polluted urban environments","authors":"Fatemeh Kazemi ,&nbsp;Mansoure Jozay","doi":"10.1016/j.ecoleng.2024.107385","DOIUrl":"10.1016/j.ecoleng.2024.107385","url":null,"abstract":"<div><p>Sustainable urban development faces challenges in efficiently using spaces, reducing pollutants, and greening cities. We examined how cadmium accumulation in soils from polluted irrigation water affects marigold (<em>Calendula officinalis</em> L.) safe and healthy products and how plant growth-promoting rhizobacteria (PGPRs) can remediate cadmium on marigold for multifunctional urban vertical system development. The study was a factorial arrangement with a randomized complete block design. The first factor was cadmium (0, 1, 2 and, 3 mg/kg soil through irrigation with Cadmium-polluted water), and the second factor was PGPR treatments (<em>P.flu, P.putida, T.SP</em>, Mix1 (<em>P.flu</em> <em>+ A.lipo</em>), Mix2 (<em>T.SP+ A.choro</em>), Mix 3 <em>(P.flu</em> <em>+ A.lipo</em> <em>+ T.SP+ A.choro)</em>), and the control. In all the PGPR treatments, total chlorophyll, flowers' fresh and dry weight and antioxidant enzymes' activity significantly increased (<em>p</em> ≤ 0.05). There was no obvious risk to human health for oral and dermal use of marigold products in bacterial inoculated treatments (1 &gt; Health Risk Index). Using flower of the plants treated with <em>Thiobacillus thioparus strain 300</em>, Mix1 (<em>P.flu</em> + <em>A.lipo</em>), Mix2 (<em>T.SP+ A.choro</em>), Mix3 (<em>P.flu</em> + <em>A.lipo</em> + <em>T.SP</em> + <em>A.choro</em>), if irrigated with up to 2 mg/kg soil Cd were safe and healthy (<span><math><mtext>Estimated Daily Intake</mtext><mo>&lt;</mo><mn>0.001</mn></math></span>, Carcinogenetic Risk &lt;1E-6, Target Hazard Quotient &lt;1). Therefore, this research, for the first time, showed that using nature-based combined soil bacteria strains, we can create vertical green systems with double functionality: pollution remediation and healthy marigold flower production in cadmium-contaminated soils of up to 2 mg/kg.</p></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"208 ","pages":"Article 107385"},"PeriodicalIF":3.9,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0925857424002106/pdfft?md5=cc5c2c124914c5442d0801c8a752fefa&pid=1-s2.0-S0925857424002106-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}