Ecological Engineering最新文献_第7页

Growing moss on bioreceptive concrete using a novel two-step approach: The effects of light, water, and species selection 利用一种新的两步方法在生物可接受混凝土上生长苔藓：光、水和物种选择的影响

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-29 DOI: 10.1016/j.ecoleng.2025.107839

M. Veeger, M. Ottelé, H.M. Jonkers

Bioreceptive concrete supports biological growth on its surface, but natural colonisation takes years, and indoor cultivation followed by outdoor translocation often results in poor long-term survival. This research aimed to develop a method for rapidly establishing a moss layer on bioreceptive concrete while ensuring long-term persistence and survival. The developed method comprised a two-step approach. First is the rapid establishment of moss on bioreceptive concrete indoors. Then, it is hardened and translocated outdoors. Findings indicate that the most effective method for growing moss on concrete indoors is to grow them at low light intensity (70 μmol m⁻² s⁻¹ full-spectrum), while watering daily for the first six weeks. Subsequently, watering can be gradually reduced to once every 4 days, inducingdrought hardening. This resulted in significant coverage and growth for both acrocarp (M_coverage = 15.1 %; M_growth = 11.2 mm) and pleurocarp species (M_coverage = 51.7 %; M_growth = 15.5 mm). Finally, after outdoor translocation, the moss should be covered with a light-blocking cloth for a 3-month period to allow for adaptation to UV and high light intensity conditions. When applying this method to moss species (mixtures), it was found that T. muralis showed slow indoor growth but the best adaptation to outdoor conditions on both north- and south-facing surfaces. Contrarily, both P. capillare and B. rutabulum displayed faster growth under indoor conditions but showed poor surface adhesion when translocated outdoors, which can, in some cases, be improved by using species mixtures. This research is a first step towards identifying the factors influencing moss growth and survival on bioreceptive concrete in the built environment.

生物接受性混凝土在其表面支持生物生长，但自然定植需要数年时间，室内培养后再进行室外迁移往往导致长期生存能力差。本研究旨在开发一种快速建立苔藓层的方法，同时确保生物接受混凝土的长期持久性和存活率。所开发的方法包括两步方法。首先是苔藓在室内可接受生物的混凝土上迅速生长。然后，它被硬化并转移到户外。结果表明，在室内低光照条件下（70 μmol m−2 s−1全光谱）生长苔藓最有效，前6周每天浇水。随后，浇水可以逐渐减少到每4天一次，导致干旱硬化。这导致草鱼（m盖度= 15.1%,Mgrowth = 11.2 mm）和胸膜鱼（m盖度= 51.7%,Mgrowth = 15.5 mm）的盖度和生长都很显著。最后，在室外迁移后，苔藓应该用遮光布覆盖3个月，以便适应紫外线和高光强条件。将该方法应用于苔藓种类（混合）时，发现无论在南北两面，壁画螟都表现出室内生长缓慢，但对室外条件的适应性最好。相反，毛毛假单胞菌和rutabulum在室内条件下均表现出较快的生长速度，但在室外迁移时，表面附着力较差，在某些情况下，可以通过物种混合来改善。本研究是确定建筑环境中影响苔藓生长和生存的因素的第一步。

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引用次数: 0

Synergistic effects of mixed Robinia-Pinus plantations enhance soil carbon sequestration and microbial functional potential in a 32-year-old reclaimed coal mine 红松混交林对32年复垦煤矿土壤固碳和微生物功能潜力的增效作用

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-19 DOI: 10.1016/j.ecoleng.2025.107837

Ye Yuan , Qian Li , Yuan Yuan , Jiayu Zhao , Rongxin Yang , Yuqing Yang , Yichao Wu

The selection of optimal afforestation models is critical for restoring soil functions in degraded mine lands, yet the long-term microbial mechanisms driving these processes remain poorly understood. This study aimed to assess the effects of five different forest restoration models on soil carbon (C) sequestration, mineralization, and the underlying microbial functional gene potential after 32 years of development at the Pingshuo opencast coal mine, a major mine on the eastern Loess Plateau, China. We compared pure stands of Ulmus pumila L. (UP), Pinus tabuliformis C. (PT), and Robinia pseudoacacia L. (RP), alongside a mixed broadleaf (Robinia-Ulmus-Ailanthus altissima S., M-B) and a mixed conifer-broadleaf (Robinia-Pinus, M-CB) stand. Soil physicochemical properties, C mineralization potential, enzyme activities, and the abundance of C and nitrogen (N) cycling functional genes were systematically analyzed. Our results showed that the mixed M-CB stand was the most successful model, exhibiting significantly higher soil organic C, total N, and microbial biomass C and N compared to all other models. Intriguingly, this C-rich stand also displayed the highest potential C mineralization rates and enzyme activities (β-1,4-glucosidase, Alkaline phosphatase), supporting a “high-input, high-turnover” ecosystem dynamic. High-throughput qPCR analysis provided a direct mechanistic link, revealing that the M-CB soil harbored the greatest abundance of genes for both C degradation (e.g., starch, lignin breakdown) and C sequestration. The abundance of these C-degrading genes was strongly and positively correlated with measured C mineralization rates. Overall, this research provides a gene-level mechanistic basis for understanding how plant-plant interactions shape belowground biogeochemical processes and we conclude that the synergistic effects within the Robinia-Pinus stand accelerate the restoration of a functionally active and C-rich soil system.

选择最佳造林模式对于恢复退化矿区土壤功能至关重要，但驱动这些过程的长期微生物机制仍然知之甚少。以黄土高原东部平朔露天煤矿为研究对象，研究了5种不同森林恢复模式对32年开发后土壤碳(C)固存、矿化和潜在微生物功能基因潜力的影响。我们比较了纯榆林（UP）、油松林（PT）和刺槐林（RP），以及混合阔叶林（M-B）和针叶-阔叶林（M-CB）。系统分析了土壤理化性质、碳矿化潜力、酶活性以及碳氮循环功能基因丰度。结果表明：M-CB混交林模式最成功，土壤有机碳、全氮、微生物生物量C和N显著高于其他模式。有趣的是，这个富含C的林分也显示出最高的潜在C矿化率和酶活性（β-1,4-葡萄糖苷酶，碱性磷酸酶），支持“高投入，高周转”的生态系统动态。高通量qPCR分析提供了直接的机制联系，揭示M-CB土壤具有最丰富的碳降解（如淀粉，木质素分解）和碳固存的基因。这些C降解基因的丰度与测量的C矿化率呈显著正相关。总的来说，本研究为理解植物-植物相互作用如何影响地下生物地球化学过程提供了基因水平的机制基础，我们得出结论，刺槐-松林内的协同效应加速了功能活跃和富含碳的土壤系统的恢复。

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引用次数: 0

Effects of consolidation through drying on phosphorus stability in marl soils accrued in treatment wetlands 干燥固结对处理湿地淤积灰土磷稳定性的影响

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-18 DOI: 10.1016/j.ecoleng.2025.107821

Kevin A. Grace , Luke Evans , Jessica Vaccare , Nichole Carr , Odi Villapando , Jacob Dombrowski

As soil accumulates in treatment wetlands over time, changes in stability may impact vegetation and water treatment performance. In the Everglades Stormwater Treatment Areas (STAs) turbid waters are observed in unvegetated regions, raising concerns about soil instability. These areas often contain fluid, unconsolidated marl soils formed by submerged aquatic vegetation (SAV), which contrast with the organic soils (Histosols) upon which many STAs were constructed. To assess potential management strategies, we evaluated the effects of drying-induced soil consolidation. Drying temporarily reduced soil volume and increased physical stability (resistance to suspension, measured as water column turbidity after disturbance), but stability after 12 weeks of rehydration was not significantly different from initial pre-drying conditions, casting doubt on long-term benefits. However, drying facilitated rapid Chara germination (within one week) upon rewetting, indicating potential for SAV establishment, which could enhance soil stability and phosphorus (P) retention.

To assess options to minimize P flux associated with drying, we tested amendments of low-P organic matter (OM) to marl soils and compare to organic soils from emergent aquatic vegetation (EAV) communities. These amendments, when mixed into marl soil, neither enhanced or diminished stability after drying and rehydration, nor altered soil P flux compared to unamended controls. Laboratory experiments without vegetation showed that higher-OM soils typical of EAV communities had greater P flux after drying and were more susceptible to resuspension than marl soils associated with SAV. These findings suggest that managing OM enrichment, particularly by limiting EAV expansion in downstream STA cells may help reduce soil instability and internal soil P flux, thereby supporting STA performance.

随着时间的推移，土壤在处理湿地中积累，稳定性的变化可能会影响植被和水处理性能。在沼泽地雨水处理区（STAs），在没有植被的地区观察到浑浊的水，引起了对土壤不稳定的关注。这些地区通常含有由水下水生植被（SAV）形成的流动、松散的泥质土壤，这与许多sta建立在有机土壤（Histosols）上形成对比。为了评估潜在的管理策略，我们评估了干旱引起的土壤固结效应。干燥暂时减少了土壤体积，增加了物理稳定性（抗悬浮性，以扰动后的水柱浊度来衡量），但12周后的再水化稳定性与最初的预干燥条件没有显著差异，这让人怀疑其长期效益。然而，干燥有利于Chara在再湿后的快速萌发（一周内），表明SAV的建立具有潜力，可以提高土壤稳定性和磷(P)的保留。为了评估减少与干燥相关的磷通量的选择，我们测试了低磷有机质（OM）对灰土的修正，并与来自新兴水生植被（EAV）群落的有机土壤进行了比较。当这些改进剂掺入泥质土时，与未改进剂对照相比，既没有增强也没有降低干燥和再水化后的稳定性，也没有改变土壤P通量。室内无植被试验结果表明，相对于与SAV相关的灰土，EAV群落典型的高有机质土壤在干燥后具有更大的P通量，并且更容易再悬浮。这些发现表明，管理有机质富集，特别是通过限制下游STA细胞中的EAV扩张，可能有助于减少土壤不稳定性和土壤内部P通量，从而支持STA的性能。

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引用次数: 0

Corrigendum to ‘Dynamics of soil reinforcement by roots in a regenerating coppice stand of Quercus serrata and effects on slope stability’ [Ecological Engineering, 162 (2021) 106169] “栎树再生林分根系加固土壤的动态及其对边坡稳定性的影响”[生态工程，162 (2021)106169]

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-18 DOI: 10.1016/j.ecoleng.2025.107838

Keitaro Yamase , Chikage Todo , Nobuyuki Torii , Toko Tanikawa , Tomonori Yamamoto , Hidetoshi Ikeno , Mizue Ohashi , Masako Dannoura , Yasuhiro Hirano

引用次数: 0

Quantitative effects of substrate, vegetation, and hydraulic loading on pollutant removal in constructed wetlands 基质、植被和水力负荷对人工湿地污染物去除的定量影响

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-15 DOI: 10.1016/j.ecoleng.2025.107836

Gongliang Zhang , Qing Li , Ran Cai , Guozhu Mao , Ruipeng Miao , Miaomiao Liu , Dexiang Li , Chenxin Song

Pollutant removal efficiency in constructed wetlands (CWs) is governed by substrate composition, vegetation, and hydraulic loading rate (HLR). This study conducted a cross-system quantitative analysis of these factors, revealing that laboratory-based CWs studies concentrated on nitrogen and phosphorus nutrients (92.35 %) and oxygen-consuming organic matter (76.47 %). Core indicators, including total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD), and ammonium nitrogen (NH₄⁺-N), exhibited a median removal efficiency of 59–67 %, with potential negative values observed for TP and NH₄⁺-N at low influent concentrations. Natural materials (41.38 %) constituted the highest proportion of substrates, with layered substrate structure (65.06 %) emerging as the predominant approach. Among common single-substrate configurations, gravel showed optimal COD removal (68.67 %), zeolite enhanced nitrogen removal (NH₄⁺-N is 40 %), and ceramic improved COD degradation (42.86 %). Notably, composite substrates substantially augment removal efficiency compared to single substrates, particularly in scenarios characterized by low initial removal performance. Plant cultivation increased removal efficiency for TN, TP, COD, and NH₄⁺-N by 14.20 %, 16.00 %, 11.55 %, and 17.33 %, respectively, with the most robust conclusion drawn for nitrogen removal enhancement. The optimal HLR for nitrogen and phosphorus removal was 0.5 m³/(m²·d), while COD required a lower HLR (0.25 m³/(m²·d)) to ensure adequate dissolved oxygen availability. High nitrogen and low carbon influent conditions facilitated HLR reduction, thereby improving overall system efficiency. By quantitatively assessing the impact of substrate selection, vegetation configuration, and HLR on CWs operational performance, we have identified the typical values from laboratory results, providing parameter reference values for engineering applications, and ultimately offering a decision-making basis for transitioning CWs from empirical design to data-driven approaches.

人工湿地（CWs）的污染物去除效率受基质组成、植被和水力负荷率（HLR）的影响。本研究对这些因素进行了跨系统的定量分析，结果表明，基于实验室的CWs研究主要集中在氮磷营养物（92.35%）和耗氧有机质（76.47%）上。总氮（TN）、总磷（TP）、化学需氧量（COD）和铵态氮（NH4+-N）等核心指标的去除率中值为59 - 67%，在低进水浓度下，TP和NH4+-N的去除率可能为负值。天然材料占基质的比例最高（41.38%），层状基质结构占主导地位（65.06%）。在常见的单基质配置中，砾石对COD的去除率最高（68.67%），沸石对氮的去除率最高（NH4+-N去除率为40%），陶瓷对COD的去除率最高（42.86%）。值得注意的是，与单一基材相比，复合基材大大提高了去除效率，特别是在初始去除性能较低的情况下。植物栽培对TN、TP、COD和NH4+-N的去除效率分别提高了14.20%、16.00%、11.55%和17.33%，其中对氮的去除效果最强。去除氮和磷的最佳HLR为0.5 m3/(m2·d)，而COD需要较低的HLR （0.25 m3/(m2·d)）以确保足够的溶解氧有效性。高氮低碳的进水条件有利于HLR的降低，从而提高了系统的整体效率。通过定量评估基质选择、植被配置和HLR对化学武器运行性能的影响，我们从实验室结果中确定了典型值，为工程应用提供了参数参考值，并最终为化学武器从经验设计过渡到数据驱动方法提供了决策依据。

{"title":"Quantitative effects of substrate, vegetation, and hydraulic loading on pollutant removal in constructed wetlands","authors":"Gongliang Zhang , Qing Li , Ran Cai , Guozhu Mao , Ruipeng Miao , Miaomiao Liu , Dexiang Li , Chenxin Song","doi":"10.1016/j.ecoleng.2025.107836","DOIUrl":"10.1016/j.ecoleng.2025.107836","url":null,"abstract":"<div><div>Pollutant removal efficiency in constructed wetlands (CWs) is governed by substrate composition, vegetation, and hydraulic loading rate (HLR). This study conducted a cross-system quantitative analysis of these factors, revealing that laboratory-based CWs studies concentrated on nitrogen and phosphorus nutrients (92.35 %) and oxygen-consuming organic matter (76.47 %). Core indicators, including total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD), and ammonium nitrogen (NH<sub>4</sub><sup>+</sup>-N), exhibited a median removal efficiency of 59–67 %, with potential negative values observed for TP and NH<sub>4</sub><sup>+</sup>-N at low influent concentrations. Natural materials (41.38 %) constituted the highest proportion of substrates, with layered substrate structure (65.06 %) emerging as the predominant approach. Among common single-substrate configurations, gravel showed optimal COD removal (68.67 %), zeolite enhanced nitrogen removal (NH<sub>4</sub><sup>+</sup>-N is 40 %), and ceramic improved COD degradation (42.86 %). Notably, composite substrates substantially augment removal efficiency compared to single substrates, particularly in scenarios characterized by low initial removal performance. Plant cultivation increased removal efficiency for TN, TP, COD, and NH<sub>4</sub><sup>+</sup>-N by 14.20 %, 16.00 %, 11.55 %, and 17.33 %, respectively, with the most robust conclusion drawn for nitrogen removal enhancement. The optimal HLR for nitrogen and phosphorus removal was 0.5 m<sup>3</sup>/(m<sup>2</sup>·d), while COD required a lower HLR (0.25 m<sup>3</sup>/(m<sup>2</sup>·d)) to ensure adequate dissolved oxygen availability. High nitrogen and low carbon influent conditions facilitated HLR reduction, thereby improving overall system efficiency. By quantitatively assessing the impact of substrate selection, vegetation configuration, and HLR on CWs operational performance, we have identified the typical values from laboratory results, providing parameter reference values for engineering applications, and ultimately offering a decision-making basis for transitioning CWs from empirical design to data-driven approaches.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"223 ","pages":"Article 107836"},"PeriodicalIF":4.1,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145322238","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}

引用次数: 0

Identifying wetland restoration gaps and priorities from the perspective of wetland seasonality 从湿地季节性角度确定湿地恢复差距和优先事项

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-14 DOI: 10.1016/j.ecoleng.2025.107835

Xiaowei Li, Xiyong Hou

Human activities have extensively altered wetland hydrology, which is critical to support wetland vegetation, biodiversity, and ecosystem services. Even though wetland hydrology is the local manifestation of landscape-scale processes, restoration activities are typically implemented at individual wetland scale and focus on maximizing restored area. In this study, we propose a landscape approach to identify restoration priorities from the perspective of wetland seasonality. Based on wetland datasets, the normalized difference vegetation index (NDVI), digital elevation model data, meteorological data, and the water availability (WA) index, we analyzed the relationship between wetland seasonality and NDVI, quantified changes in wetland seasonality over 35 years (1985–2020), and identified priorities for wetland restoration in the mid North China Plain (MNCP). The results showed that the annual maximum NDVI was strongly correlated with wetland seasonality (linear fit across seasonality bins; see Methods/Results). In addition to the loss and gain of seasonal water surface area, a marked alteration of the seasonality regimes during 1985–2020 was observed. The priority areas for wetland restoration were primarily found in the southern part, east coast, and central part of the MNCP. Based on the WA in the catchment area of a restorable patch, the WA index provides insight into the self-sustaining potential of wetland hydrology and can be used as an indicator to identify restoration priorities. The results of this study will inform decision makers on explicit locations for wetland restoration at the sub-basin scale. The framework proposed in this work is spatially explicit, effective, and repeatable, and thus it has potential to guide adjustment and inspire optimization of wetland restoration strategies in China.

人类活动广泛改变了湿地水文，这对支持湿地植被、生物多样性和生态系统服务至关重要。尽管湿地水文是景观尺度过程的局部表现，但恢复活动通常是在单个湿地尺度上进行的，并以最大限度地扩大恢复面积为重点。在本研究中，我们从湿地季节性的角度提出了一种景观方法来确定恢复优先级。基于湿地数据集、归一化植被指数（NDVI）、数字高程模型数据、气象数据和水分有效性（WA）指数，分析了湿地季节性与NDVI的关系，量化了35年来（1985-2020年）湿地季节性的变化，并确定了华北平原中部湿地恢复的优先重点。结果表明，年NDVI最大值与湿地的季节性密切相关（跨季节箱的线性拟合）。除了季节性水面面积的增减外，1985-2020年期间观测到季节性格局的显著变化。湿地恢复的重点区域主要集中在南岸、东岸和中部。基于可恢复斑块集水区的WA， WA指数可以深入了解湿地水文的自我维持潜力，并可作为确定恢复优先事项的指标。本研究结果将为决策者在次流域尺度上确定湿地恢复的具体地点提供参考。该框架在空间上具有明确性、有效性和可重复性，对中国湿地恢复策略的调整和优化具有指导意义。

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引用次数: 0

Does clearing forests increase the abundance of crop pollinators? 砍伐森林会增加作物传粉昆虫的数量吗？

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-14 DOI: 10.1016/j.ecoleng.2025.107834

Hisatomo Taki , Yuta Nagano , Kae Natsume , Tadashi Miyashita

This study investigated the impact of forest logging on wild pollinators in a small-scale agricultural landscape in central Japan, focusing on the pollination services these species provide to buckwheat fields. We specifically examined how deforestation-induced open environments influence the diversity and abundance of insect pollinators. We established four experimental sites along the edges of forest areas, where we removed the vegetation to create grassland patches and maintained them through annual mowing. We collected pollinators from both the logged areas and adjacent forest areas from June to October in 2022 and 2023 using Malaise traps. The results indicated that insect abundance was significantly higher in the logged areas than in forest areas in both years, although the response of different pollinator groups varied. These findings suggest that forest logging, when combined with vegetation management measures such as annual mowing, can enhance pollinator abundance, but the effect varies among taxonomic groups. Overall, this study shows that logging influences pollinator populations, with local context, such as landscape configuration and vegetation dynamics, playing a crucial role in shaping pollinator dynamics. Future studies should explore the long-term effects of logging on pollinators and their actual impact on crop yields.

本研究调查了日本中部一个小型农业景观中森林采伐对野生传粉昆虫的影响，重点研究了这些物种为荞麦田提供的授粉服务。我们特别研究了森林砍伐引起的开放环境如何影响昆虫传粉媒介的多样性和丰度。我们沿着森林边缘建立了四个试验点，在那里我们移除植被，形成草地斑块，并通过每年的割草来维持它们。我们于2022年和2023年6 - 10月分别在采伐区和邻近林区采用诱捕器采集传粉昆虫。结果表明，尽管不同传粉昆虫种群的响应不同，但采伐区昆虫丰度均显著高于林区。这些发现表明，当森林采伐与植被管理措施（如年度刈割）相结合时，可以提高传粉媒介的丰度，但效果因分类群而异。总体而言，本研究表明，伐木影响传粉媒介种群，与当地环境，如景观配置和植被动态，在传粉媒介动态的形成中起着至关重要的作用。未来的研究应该探索伐木对传粉媒介的长期影响及其对作物产量的实际影响。

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引用次数: 0

Moss-based building greening: A review on enhancing sustainability of concrete cityscapes 以苔藓为基础的建筑绿化：混凝土城市景观可持续发展研究综述

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-14 DOI: 10.1016/j.ecoleng.2025.107826

Moon-Su Kim , Eung-Sam Kim

Urban expansion has led to a wide range of environmental issues, for which building greening has been proposed and implemented as a sustainable solution. However, the widespread of vascular plant-based building greening has been limited due to high installation and maintenance costs. As an alternative, moss-based building greening—leveraging the unique life cycle and strong stress tolerance of mosses—has gained increasing attention. This review summarizes the life cycle characteristics and stress tolerances of mosses and categorizes existing research on moss-based building greening into three major groups: field application studies, laboratory studies on rooftop greening, and laboratory studies on vertical greening. Through this analysis, key limitations were identified, including low colony maintenance, potential risks of biodeterioration, lack of standardized moss-specific guidelines, and limited ecological contribution. In response, this review proposes considerations for large-scale, long-term field studies across diverse climatic regions and introduces new rooftop and vertical greening models designed to enhance feasibility and maintenance. By integrating insights on interspecies interactions, long-term impacts on building materials, and the need for moss-specific implementation guidelines, the proposed strategies aim to support the advancement and broader application of moss-based building greening systems.

城市扩张带来了一系列的环境问题，建筑绿化作为一种可持续的解决方案被提出并实施。然而，维管植物建筑绿化由于安装和维护成本高，其推广受到限制。作为一种替代方案，利用苔藓独特的生命周期和强大的抗逆性，以苔藓为基础的建筑绿化越来越受到人们的关注。本文综述了藓类植物的生命周期特征和抗逆性，并将藓类建筑绿化研究分为野外应用研究、屋顶绿化实验室研究和垂直绿化实验室研究三大类。通过这一分析，确定了主要的限制，包括低菌落维持，潜在的生物退化风险，缺乏标准化的苔藓特异性指南，以及有限的生态贡献。因此，本文建议在不同气候区域进行大规模、长期的实地研究，并介绍了新的屋顶和垂直绿化模型，以提高可行性和可维护性。通过整合对物种间相互作用、对建筑材料的长期影响以及对特定苔藓实施指南的需求的见解，提出的策略旨在支持基于苔藓的建筑绿化系统的发展和更广泛的应用。

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引用次数: 0

Enhanced nitrogen removal performance of ecological floating islands by immobilized denitrifying bacteria 固定化反硝化细菌对生态浮岛脱氮性能的影响

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-13 DOI: 10.1016/j.ecoleng.2025.107813

Dian Zheng , Guanlong Yu , Yameng Zhang , Jiaxin Liu , Yongqi Wang , Shiyu Chen , Sili Tan

Excess nitrogen in water bodies can trigger eutrophication, posing a threat to the ecosystem. The treatment of nitrogenous wastewater and removal of nitrogen compounds from water bodies is essential to improve and maintain water quality. To address this issue, the immobilized heterotrophic nitrifying-aerobic denitrifying bacterium Alcaligenes faecalis (A. faecalis) was combined with ecological floating island (EFI) to improve nitrogen removal performance, and the optimal operating conditions were determined. EFI supplemented with immobilized A. faecalis exhibited excellent and stable nitrogen removal capacity, with average removal rates of 89.10 ± 3.65 %, 74.79 ± 8.81 % and 95.44 ± 4.93 % for TN,

{NH}_{4}^{+} - N

and

{NO}_{3}^{-} - N

respectively, when the HRT was 3 d and the C/N was 16. The addition of immobilized A. faecalis increased the relative abundance of dominant denitrifying bacteria, especially unclassified_p__Proteobacteria, thereby altering the microbial community structure, improving the denitrification efficiency of the EFI, and facilitating nitrogen removal. In addition, the immobilized A. faecalis could reduce the effects of the nitrogenous wastewater on plants, enabling the nitrogen removal of the EFI. The study suggests that immobilization of A. faecalis is an effective strategy to improve nitrogen removal through EFI-microbial integrated systems.

水体中过量的氮会引发富营养化，对生态系统构成威胁。含氮废水的处理和水体中氮化合物的去除对改善和保持水质至关重要。为解决这一问题，将固定化异养硝化-好氧反硝化细菌粪Alcaligenes faecalis （A. faecalis）与生态浮岛（EFI）相结合，提高脱氮性能，并确定最佳操作条件。当HRT为3 d， C/N为16时，EFI对TN、NH4+−N和NO3−−N的平均去除率分别为89.10±3.65%、74.79±8.81%和95.44±4.93%。固定化粪芽孢杆菌的加入增加了优势反硝化菌的相对丰度，特别是未分类的变形菌，从而改变了微生物群落结构，提高了EFI的反硝化效率，有利于脱氮。此外，固定化粪芽孢杆菌可以减少含氮废水对植物的影响，使EFI脱氮成为可能。研究表明，固定化粪芽孢杆菌是通过efi -微生物集成系统提高脱氮效果的有效策略。

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引用次数: 0

Microbial-assisted corn residue return as a sustainable strategy for soil structural and nutrient enhancement 微生物辅助玉米秸秆还田是提高土壤结构和养分的可持续策略

IF 4.1 2区环境科学与生态学 Q1 ECOLOGY

Ecological Engineering

Pub Date : 2025-10-10 DOI: 10.1016/j.ecoleng.2025.107825

Xuejie Ma , Zhihong Yu , Qiang Su , Wenhang Liu

This study investigated the effects of various corn stover management strategies on soil mechanical and physicochemical properties. Six treatments were established: natural residue decomposition (NRD), chopped residue incorporation (CRI), chopped residue with microbial inoculant (CRMI), composted residue incorporation (CRC), composted residue with microbial inoculant (CRMC), and a no-residue control (CK). Soil properties—including shear strength, compactness, saturated water content, geometric mean diameter, erodibility factor, pH, and the content of available nitrogen, phosphorus, potassium, and organic matter—were assessed using one-way ANOVA, PCA, Mantel tests, and Random Forest models. The results revealed that the application of chopped stover and microbial inoculants significantly enhanced both the mechanical and physicochemical properties of the soil. Specifically, treatments involving composting (CRC and CRMC) yielded the most substantial improvements in shear strength, compactness, and OM content. PCA confirmed a distinct separation of the CRC and CRMC treatments, underscoring their profound impact on soil characteristics. Furthermore, the Random Forest analysis identified OM as the single most critical factor driving soil quality improvement. The Mantel test indicated strong correlations between shear strength, geometric mean diameter, and organic matter. We conclude that the incorporation of microbially-inoculated composted stover represents a highly effective strategy for improving soil health in arid agricultural systems. This approach provides a practical pathway for sustainable soil management and contributes valuable insights for the efficient utilization of agricultural residues in support of a green agricultural transition.

研究了不同玉米秸秆管理方式对土壤理化性质的影响。建立了6个处理：自然残渣分解（NRD）、切碎残渣掺入（CRI）、切碎残渣掺加微生物接种剂（CRMI）、堆肥残渣掺入（CRC）、堆肥残渣掺加微生物接种剂（CRMC）和无残渣对照（CK）。土壤特性——包括抗剪强度、密实度、饱和含水量、几何平均直径、可蚀性因子、pH值以及有效氮、磷、钾和有机质的含量——采用单因素方差分析、主成分分析、曼特尔检验和随机森林模型进行评估。结果表明，秸秆和微生物接种剂的施用显著提高了土壤的力学和理化性质。具体来说，堆肥处理（CRC和CRMC）在抗剪强度、密实度和OM含量方面产生了最显著的改善。主成分分析证实了CRC和CRMC处理之间的明显分离，强调了它们对土壤特征的深刻影响。此外，随机森林分析表明，有机质是推动土壤质量改善的最关键因素。Mantel试验表明抗剪强度、几何平均直径和有机质之间存在很强的相关性。我们得出结论，微生物接种堆肥秸秆的掺入是改善干旱农业系统土壤健康的一种非常有效的策略。该方法为可持续土壤管理提供了切实可行的途径，并为有效利用农业残留物以支持绿色农业转型提供了宝贵的见解。

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