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Comparative evaluation of the carbon storage capacities in urban stormwater nature-based technologies
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2025.107539
Md Tashdedul Haque , Franz Kevin F. Geronimo , Miguel Enrico L. Robles , Chiny Vispo , Lee-Hyung Kim
Low Impact Development (LID) technologies offer enormous environmental benefits regarding ecosystem services, such as biodiversity support, carbon sequestration, and improved air quality. This study compares and quantifies soil organic carbon (SOC) storage in different LID technologies and investigates the factors affecting carbon storage. It was found that the SOC percentages ranged from 0.8 % to 4.5 % across LID technologies, with the surface constructed wetlands (SCW) and tree box filter exhibiting relatively higher content attributed to root turnover, stormwater runoff, and media composition. Moreover, SCW exhibited the highest SOC content compared to other technologies for the 0–10 cm and 10–20 cm layers. There were linkages identified between the soil's physico chemical properties, but the majority of the correlations were weak to moderate. Among the investigated soil physico chemical characteristics, TN exhibited considerable correlation with SOC content. Additionally, the results from the LID technologies were compared to findings from other studies, which emphasized the role of these technologies in carbon sequestration, green space expansion, and the promotion of environmental sustainability.
{"title":"Comparative evaluation of the carbon storage capacities in urban stormwater nature-based technologies","authors":"Md Tashdedul Haque ,&nbsp;Franz Kevin F. Geronimo ,&nbsp;Miguel Enrico L. Robles ,&nbsp;Chiny Vispo ,&nbsp;Lee-Hyung Kim","doi":"10.1016/j.ecoleng.2025.107539","DOIUrl":"10.1016/j.ecoleng.2025.107539","url":null,"abstract":"<div><div>Low Impact Development (LID) technologies offer enormous environmental benefits regarding ecosystem services, such as biodiversity support, carbon sequestration, and improved air quality. This study compares and quantifies soil organic carbon (SOC) storage in different LID technologies and investigates the factors affecting carbon storage. It was found that the SOC percentages ranged from 0.8 % to 4.5 % across LID technologies, with the surface constructed wetlands (SCW) and tree box filter exhibiting relatively higher content attributed to root turnover, stormwater runoff, and media composition. Moreover, SCW exhibited the highest SOC content compared to other technologies for the 0–10 cm and 10–20 cm layers. There were linkages identified between the soil's physico chemical properties, but the majority of the correlations were weak to moderate. Among the investigated soil physico chemical characteristics, TN exhibited considerable correlation with SOC content. Additionally, the results from the LID technologies were compared to findings from other studies, which emphasized the role of these technologies in carbon sequestration, green space expansion, and the promotion of environmental sustainability.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107539"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165812","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
Treatment wetlands in Iran: A review
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2024.107494
Amir Gholipour
This paper presents a comprehensive review and meta-analysis of treatment wetland technology trends and effectiveness in Iran since the 1990s. A web search identified 69 relevant studies since 1998, highlighting various types of treatment wetlands designed at pilot and full scales. Horizontal subsurface flow (HSSF) systems and hybrid wetlands were most investigated, while full-scale studies were relatively scarce. Treatment wetlands were evaluated under diverse climatic conditions, particularly the Csa climate of the Köppen classification, with a primary focus on domestic (66 %) and industrial (14 %) wastewater treatment. Applications also extended to agriculture, leachate, aquaculture, greywater, livestock, and pharmaceuticals. The meta-analysis revealed the prevalent use of sand and gravel (15 ± 10.09 mm) as substrates, although contemporary materials like zeolite are emerging. Among 31 identified plant species, Phragmites australis was most frequently utilized. Key design criteria, such as hydraulic retention time (HRT), hydraulic loading rate (HLR), and the width-to-length ratio of reed beds, were estimated. HRT and HLR for HSSF wetlands were 3.35 ± 2.16 days and 10 ± 2 cm.day-1, respectively, while hybrid wetlands were 4.15 ± 1.80 days and 59 ± 25 cm.day-1. Effective operation and maintenance, including periodic vegetation harvest and even influent distribution, were crucial for optimal performance. HSSF and hybrid systems showed significant efficiency in removing various pollutants, with hybrid systems excelling in nitrogen removal due to oxygen variability in vertical and horizontal reed beds. This study emphasizes the potential of treatment wetlands as a sustainable alternative to conventional systems.
{"title":"Treatment wetlands in Iran: A review","authors":"Amir Gholipour","doi":"10.1016/j.ecoleng.2024.107494","DOIUrl":"10.1016/j.ecoleng.2024.107494","url":null,"abstract":"<div><div>This paper presents a comprehensive review and meta-analysis of treatment wetland technology trends and effectiveness in Iran since the 1990s. A web search identified 69 relevant studies since 1998, highlighting various types of treatment wetlands designed at pilot and full scales. Horizontal subsurface flow (HSSF) systems and hybrid wetlands were most investigated, while full-scale studies were relatively scarce. Treatment wetlands were evaluated under diverse climatic conditions, particularly the Csa climate of the Köppen classification, with a primary focus on domestic (66 %) and industrial (14 %) wastewater treatment. Applications also extended to agriculture, leachate, aquaculture, greywater, livestock, and pharmaceuticals. The meta-analysis revealed the prevalent use of sand and gravel (15 ± 10.09 mm) as substrates, although contemporary materials like zeolite are emerging. Among 31 identified plant species, <em>Phragmites australis</em> was most frequently utilized. Key design criteria, such as hydraulic retention time (HRT), hydraulic loading rate (HLR), and the width-to-length ratio of reed beds, were estimated. HRT and HLR for HSSF wetlands were 3.35 ± 2.16 days and 10 ± 2 cm.day<sup>-1</sup>, respectively, while hybrid wetlands were 4.15 ± 1.80 days and 59 ± 25 cm.day<sup>-1</sup>. Effective operation and maintenance, including periodic vegetation harvest and even influent distribution, were crucial for optimal performance. HSSF and hybrid systems showed significant efficiency in removing various pollutants, with hybrid systems excelling in nitrogen removal due to oxygen variability in vertical and horizontal reed beds. This study emphasizes the potential of treatment wetlands as a sustainable alternative to conventional systems.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107494"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165815","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}
引用次数: 0
Influence of aquatic biodiversity on the self-purification of tropical rivers
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2025.107540
Jaielle Rodrigues Nascimento , Jovenilson Ferreira dos Santos , Gisele Daiane Pinha , Jeniffer de Barros Cabral , Nadson Ressyé Simões
Water resources face several challenges from human activities that increase their vulnerability and negatively impact on their resilience, particularly concerning the preservation of biodiversity and ecosystem services. This study hypothesized that aquatic biodiversity contributes to maintaining the ecosystem service of the improving water quality in the Almada and Cachoeira Rivers, in northeastern Brazil. To test the hypothesis, samples were taken upstream (clean water zone) and downstream (active decomposition zones) from three urban areas of each river basin, and the Streeter-Phelps self-purification model was applied. The landscape was predominantly characterized by pastures and forest formations. Principal Component Analysis indicated greater variability in the physical and chemical variables of the active decomposition zones. The headwater stretches were the most affected by organic pollution; the Almada River presented a more efficient self-purification process. Zooplankton richness and abundance showed significant differences between the clean water and the active decomposition zones. There was a correlation between attributes of both benthic and planktonic communities and certain physicochemical variables, such as dissolved oxygen (DO), pH, and biochemical oxygen demand (BOD). The correlation between community attributes, including tolerant groups, and DO and BOD concentrations along each stretch, generated by the model, demonstrated the positive effect of the composition and abundance of planktonic organisms on self-purification processes. Given the observed anthropogenic impacts, sewage treatment measures should be implemented to sustain ecosystem services provided by water.
{"title":"Influence of aquatic biodiversity on the self-purification of tropical rivers","authors":"Jaielle Rodrigues Nascimento ,&nbsp;Jovenilson Ferreira dos Santos ,&nbsp;Gisele Daiane Pinha ,&nbsp;Jeniffer de Barros Cabral ,&nbsp;Nadson Ressyé Simões","doi":"10.1016/j.ecoleng.2025.107540","DOIUrl":"10.1016/j.ecoleng.2025.107540","url":null,"abstract":"<div><div>Water resources face several challenges from human activities that increase their vulnerability and negatively impact on their resilience, particularly concerning the preservation of biodiversity and ecosystem services. This study hypothesized that aquatic biodiversity contributes to maintaining the ecosystem service of the improving water quality in the Almada and Cachoeira Rivers, in northeastern Brazil. To test the hypothesis, samples were taken upstream (clean water zone) and downstream (active decomposition zones) from three urban areas of each river basin, and the Streeter-Phelps self-purification model was applied. The landscape was predominantly characterized by pastures and forest formations. Principal Component Analysis indicated greater variability in the physical and chemical variables of the active decomposition zones. The headwater stretches were the most affected by organic pollution; the Almada River presented a more efficient self-purification process. Zooplankton richness and abundance showed significant differences between the clean water and the active decomposition zones. There was a correlation between attributes of both benthic and planktonic communities and certain physicochemical variables, such as dissolved oxygen (DO), pH, and biochemical oxygen demand (BOD). The correlation between community attributes, including tolerant groups, and DO and BOD concentrations along each stretch, generated by the model, demonstrated the positive effect of the composition and abundance of planktonic organisms on self-purification processes. Given the observed anthropogenic impacts, sewage treatment measures should be implemented to sustain ecosystem services provided by water.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107540"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166358","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
Are riparian buffer strips effective for nutrient retention under cold frozen conditions?
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2024.107512
Mathieu Nsenga Kumwimba , Xuyong Li , Jinlou Huang , Mawuli Dzakpasu , Binessi Edouard Ifon , Diana Kavidia Muyembe , Salma Akter , Yufan Zhang , Awoke Guadie , Benjamin Manirakiza
Riparian buffer zones (RBZs) are commonly employed as a nature-based solution to mitigate the transport of nutrients from cultivated lands to freshwater bodies. However, effectively retaining nutrients in cold conditions presents a challenge. This is due to the fact that herbaceous vegetation wilts during winter, becoming covered by snow and ice, and unable to actively absorb pollutants. Additionally, frozen soils restrict or completely prevent infiltration. This study aimed to evaluate the performance of buffers in reducing nutrient levels in agricultural overland flow in a semi-arid region of northern China. Runoff monitoring was conducted using twelve steel flumes, established at both the inflow and outflow of the RBZs at each site along the predicted overland flow path. Furthermore, phosphorus (P) concentrations were estimated in RBZ soil samples taken along the runoff flow line to gain further insights into nutrient dynamics within various RBZs. Analysis of runoff samples from 35 events throughout the study demonstrated that, in most instances, buffers have minimal to no impact on reducing the levels of nitrogen (N) and P species under snowmelt-generated runoff. Although the influence of buffers on nutrients was limited during the snowmelt period, they performed better during summer than in the autumn, resulting in a moderate reduction of TN and TP levels in 83 % of the sites. Furthermore, the available P concentrations in the soil of 50 % of the studied buffers were considerably higher than in cropland soils. The subpar performance of buffers in retaining nutrient in the studied area can potentially be attributed to the fact that most of the overland flow is concentrated (rather than uniform sheet flow) via narrow fractions across buffers, and this occurs specifically during snowmelt when biogeochemical mechanisms (e.g., sorption, infiltration, plant and microbial assimilation) responsible for nutrient removal in buffers are limited. This study also revealed that the percentage of water extractable N and P released from various species subjected to 0, 3, or 6 freeze-thaw cycles varied from 6.13 to 68.90 % and 10.60–73.46 %, respectively. Future research efforts should focus on identifying alternative management measures that enhance nutrient removal during concentrated snowmelt runoff periods in these low-temperature areas.
{"title":"Are riparian buffer strips effective for nutrient retention under cold frozen conditions?","authors":"Mathieu Nsenga Kumwimba ,&nbsp;Xuyong Li ,&nbsp;Jinlou Huang ,&nbsp;Mawuli Dzakpasu ,&nbsp;Binessi Edouard Ifon ,&nbsp;Diana Kavidia Muyembe ,&nbsp;Salma Akter ,&nbsp;Yufan Zhang ,&nbsp;Awoke Guadie ,&nbsp;Benjamin Manirakiza","doi":"10.1016/j.ecoleng.2024.107512","DOIUrl":"10.1016/j.ecoleng.2024.107512","url":null,"abstract":"<div><div>Riparian buffer zones (RBZs) are commonly employed as a nature-based solution to mitigate the transport of nutrients from cultivated lands to freshwater bodies. However, effectively retaining nutrients in cold conditions presents a challenge. This is due to the fact that herbaceous vegetation wilts during winter, becoming covered by snow and ice, and unable to actively absorb pollutants. Additionally, frozen soils restrict or completely prevent infiltration. This study aimed to evaluate the performance of buffers in reducing nutrient levels in agricultural overland flow in a semi-arid region of northern China. Runoff monitoring was conducted using twelve steel flumes, established at both the inflow and outflow of the RBZs at each site along the predicted overland flow path. Furthermore, phosphorus (P) concentrations were estimated in RBZ soil samples taken along the runoff flow line to gain further insights into nutrient dynamics within various RBZs. Analysis of runoff samples from 35 events throughout the study demonstrated that, in most instances, buffers have minimal to no impact on reducing the levels of nitrogen (N) and P species under snowmelt-generated runoff. Although the influence of buffers on nutrients was limited during the snowmelt period, they performed better during summer than in the autumn, resulting in a moderate reduction of TN and TP levels in 83 % of the sites. Furthermore, the available P concentrations in the soil of 50 % of the studied buffers were considerably higher than in cropland soils. The subpar performance of buffers in retaining nutrient in the studied area can potentially be attributed to the fact that most of the overland flow is concentrated (rather than uniform sheet flow) via narrow fractions across buffers, and this occurs specifically during snowmelt when biogeochemical mechanisms (e.g., sorption, infiltration, plant and microbial assimilation) responsible for nutrient removal in buffers are limited. This study also revealed that the percentage of water extractable N and P released from various species subjected to 0, 3, or 6 freeze-thaw cycles varied from 6.13 to 68.90 % and 10.60–73.46 %, respectively. Future research efforts should focus on identifying alternative management measures that enhance nutrient removal during concentrated snowmelt runoff periods in these low-temperature areas.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107512"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166360","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
Hydrological sensitivity of mountainous wetlands to precipitation and potential evapotranspiration using elasticity curves
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2025.107542
Jiyu Seo , Sijung Choi , Jongho Keum , Jeongcheol Lim , Haekun Yang , Sangdan Kim
Wetlands are recognized as one of the most productive ecosystems and provide important ecosystem services. Climate change is reported to be a major threat to mountainous wetlands, and understanding how the hydrological functioning of wetlands responds to climate variability is important for the conservation and restoration of wetland ecosystems. The hydrological sensitivity of wetlands to climate variability is best analyzed using long-term observations, but observations of wetlands are rare, and long-term observations are not always easy to obtain due to cost. To address the lack of hydrological observations in these wetlands, this study devised a simple wetland-specific hydrological model, calibrated the model parameters using limited observations, and input long-term meteorological data into the model to produce long-term hydrological component data for wetlands. Using the long-term meteorological time series (i.e. precipitation and potential evapotranspiration), the produced time series of the hydrological components of the wetland (such as wetland water level and/or groundwater exchange between upland and wetland), and the concept of elasticity curves, the hydrological sensitivity of the wetland to precipitation and/or potential evapotranspiration was analyzed. The climate resilience of a wetland is defined as the rate of change of the wetland hydrological components for a 1 % change in climate variables, and from the percentile-based elasticity curve approach, the response of the wetland hydrological components to different percentiles of annual and/or seasonal climate variability was examined. The climate elasticity curves of the wetlands showed that different percentiles of hydrological components have different climate elasticities. In addition, the sensitivity of the climate elasticity to the physical characteristics of the wetland and/or wetland drainage area was assessed to see which hydrological components are affected by which physical characteristics at which percentile level. The sensitivity assessment showed that the climate elasticity of the two applied wetlands was most affected by changes in wetland area. This study provides an avenue for analyzing how the hydrological function of wetlands can be affected by changes in climate variables at annual or seasonal scales, and how much physical characteristics can influence the hydrological sensitivity of wetlands to climate variability, and the insights gained from these analyses can provide valuable information for the conservation and/or restoration of wetlands.
{"title":"Hydrological sensitivity of mountainous wetlands to precipitation and potential evapotranspiration using elasticity curves","authors":"Jiyu Seo ,&nbsp;Sijung Choi ,&nbsp;Jongho Keum ,&nbsp;Jeongcheol Lim ,&nbsp;Haekun Yang ,&nbsp;Sangdan Kim","doi":"10.1016/j.ecoleng.2025.107542","DOIUrl":"10.1016/j.ecoleng.2025.107542","url":null,"abstract":"<div><div>Wetlands are recognized as one of the most productive ecosystems and provide important ecosystem services. Climate change is reported to be a major threat to mountainous wetlands, and understanding how the hydrological functioning of wetlands responds to climate variability is important for the conservation and restoration of wetland ecosystems. The hydrological sensitivity of wetlands to climate variability is best analyzed using long-term observations, but observations of wetlands are rare, and long-term observations are not always easy to obtain due to cost. To address the lack of hydrological observations in these wetlands, this study devised a simple wetland-specific hydrological model, calibrated the model parameters using limited observations, and input long-term meteorological data into the model to produce long-term hydrological component data for wetlands. Using the long-term meteorological time series (i.e. precipitation and potential evapotranspiration), the produced time series of the hydrological components of the wetland (such as wetland water level and/or groundwater exchange between upland and wetland), and the concept of elasticity curves, the hydrological sensitivity of the wetland to precipitation and/or potential evapotranspiration was analyzed. The climate resilience of a wetland is defined as the rate of change of the wetland hydrological components for a 1 % change in climate variables, and from the percentile-based elasticity curve approach, the response of the wetland hydrological components to different percentiles of annual and/or seasonal climate variability was examined. The climate elasticity curves of the wetlands showed that different percentiles of hydrological components have different climate elasticities. In addition, the sensitivity of the climate elasticity to the physical characteristics of the wetland and/or wetland drainage area was assessed to see which hydrological components are affected by which physical characteristics at which percentile level. The sensitivity assessment showed that the climate elasticity of the two applied wetlands was most affected by changes in wetland area. This study provides an avenue for analyzing how the hydrological function of wetlands can be affected by changes in climate variables at annual or seasonal scales, and how much physical characteristics can influence the hydrological sensitivity of wetlands to climate variability, and the insights gained from these analyses can provide valuable information for the conservation and/or restoration of wetlands.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107542"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143301801","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
Fire resilience analysis: Using high temporal and spatial satellite imagery for rehabilitated landscapes
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2024.107478
Phillip B. McKenna , Stuart Phinn , Peter D. Erskine
The progressive rehabilitation of open-cut coal mines and the demonstration of a sustainable post-mining land use is required prior to mine closure in many parts of the world. There is a general belief that the risk of rehabilitation failure following mine closure due to disturbance events such as fire is minimal, based largely on the assumed resilience of rehabilitated pastures and the assumption that rehabilitated pastures will respond analogous to unmined pastures following fire. However, there is little scientific evidence to support this notion, and additional knowledge gaps on the resilience of rehabilitation age classes and appropriate methods for land managers to measure and demonstrate rehabilitation resilience. We used Sentinel-2 and Landsat-8 time-series and assessed the impact and vegetation response to eight fire events in rehabilitation and five fires in unmined analogues in central and southeast Queensland, Australia. Using the Soil Adjusted Vegetation Index (SAVI), we aimed to compare rehabilitated and unmined areas using three resilience metrics: i) percent impact, ii) recovery time and iii) recovery rate. Compared with unmined pastures, post-mine rehabilitation recorded higher mean impact (52–65 % vs 67–79 % respectively), longer recovery times (38–117 vs 144–245 days respectively) and a slower rate of recovery (2.5–5.7 % vs 0.9–1.7 % per day respectively). Younger age-classes (<10 y/o and 10–15 y/o) recorded reduced resilience compared to mature rehabilitation (≥ 16 y/o). We compared three different baseline indices and showed that the choice of baseline index yielded significantly different results for the same fires, indicating the importance of standardised approaches to resilience monitoring.
{"title":"Fire resilience analysis: Using high temporal and spatial satellite imagery for rehabilitated landscapes","authors":"Phillip B. McKenna ,&nbsp;Stuart Phinn ,&nbsp;Peter D. Erskine","doi":"10.1016/j.ecoleng.2024.107478","DOIUrl":"10.1016/j.ecoleng.2024.107478","url":null,"abstract":"<div><div>The progressive rehabilitation of open-cut coal mines and the demonstration of a sustainable post-mining land use is required prior to mine closure in many parts of the world. There is a general belief that the risk of rehabilitation failure following mine closure due to disturbance events such as fire is minimal, based largely on the assumed resilience of rehabilitated pastures and the assumption that rehabilitated pastures will respond analogous to unmined pastures following fire. However, there is little scientific evidence to support this notion, and additional knowledge gaps on the resilience of rehabilitation age classes and appropriate methods for land managers to measure and demonstrate rehabilitation resilience. We used Sentinel-2 and Landsat-8 time-series and assessed the impact and vegetation response to eight fire events in rehabilitation and five fires in unmined analogues in central and southeast Queensland, Australia. Using the Soil Adjusted Vegetation Index (SAVI), we aimed to compare rehabilitated and unmined areas using three resilience metrics: i) percent impact, ii) recovery time and iii) recovery rate. Compared with unmined pastures, post-mine rehabilitation recorded higher mean impact (52–65 % vs 67–79 % respectively), longer recovery times (38–117 vs 144–245 days respectively) and a slower rate of recovery (2.5–5.7 % vs 0.9–1.7 % per day respectively). Younger age-classes (&lt;10 y/o and 10–15 y/o) recorded reduced resilience compared to mature rehabilitation (≥ 16 y/o). We compared three different baseline indices and showed that the choice of baseline index yielded significantly different results for the same fires, indicating the importance of standardised approaches to resilience monitoring.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107478"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143164654","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}
引用次数: 0
Substrate-mediated alterations to hydrodynamic conditions enhances shellfish larval settlement: Implications for artificial reef restoration
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2024.107474
Brendan S. Lanham , Andrew W.M. Pomeroy , Stephen E. Swearer , Ivan Marusic , Javane Javaherchian , Rebecca L. Morris
Shellfish reef restoration in systems with limited larval supply has generally relied on seeding reefs with hatchery raised juveniles. Although the growth and survival of seeded individuals is sufficient in some systems, to speed up the process of reef formation we need to create substrates that also maximise natural larval settlement. This can be achieved through mimicking the emergent traits of shellfish reefs by creating complex substrates that create desirable flow conditions for settlement. To test shellfish settlement under altered hydrodynamics, we performed larval settlement experiments on tiles with either enhanced surface roughness (sandblasted concrete) or surface complexity (the addition of different configurations of ridges and grooves) relative to control (smooth and flat) tiles. We used particle image velocimetry (PIV) to understand how the hydrodynamics were altered by each tile design, and computational fluid dynamics (CFD) particle modeling to determine if observed larval settlement patterns to complex tiles differed from the retention of modeled passive particles. The addition of surface roughness increased larval settlement and reduced the surface mean flow velocities when oyster shell was used as aggregate. Surface complexity created drastically different hydrodynamic conditions to flat control tiles, which aligned with increases in larval settlement for oysters and passive particle retention. Overall, fine scale hydrodynamics were influenced by both rough and complex surfaces that substantially increase particle retention, and likely also recruitment success. This study highlights the importance of considering hydrodynamics when designing engineered substrates for shellfish reef restoration projects.
{"title":"Substrate-mediated alterations to hydrodynamic conditions enhances shellfish larval settlement: Implications for artificial reef restoration","authors":"Brendan S. Lanham ,&nbsp;Andrew W.M. Pomeroy ,&nbsp;Stephen E. Swearer ,&nbsp;Ivan Marusic ,&nbsp;Javane Javaherchian ,&nbsp;Rebecca L. Morris","doi":"10.1016/j.ecoleng.2024.107474","DOIUrl":"10.1016/j.ecoleng.2024.107474","url":null,"abstract":"<div><div>Shellfish reef restoration in systems with limited larval supply has generally relied on seeding reefs with hatchery raised juveniles. Although the growth and survival of seeded individuals is sufficient in some systems, to speed up the process of reef formation we need to create substrates that also maximise natural larval settlement. This can be achieved through mimicking the emergent traits of shellfish reefs by creating complex substrates that create desirable flow conditions for settlement. To test shellfish settlement under altered hydrodynamics, we performed larval settlement experiments on tiles with either enhanced surface roughness (sandblasted concrete) or surface complexity (the addition of different configurations of ridges and grooves) relative to control (smooth and flat) tiles. We used particle image velocimetry (PIV) to understand how the hydrodynamics were altered by each tile design, and computational fluid dynamics (CFD) particle modeling to determine if observed larval settlement patterns to complex tiles differed from the retention of modeled passive particles. The addition of surface roughness increased larval settlement and reduced the surface mean flow velocities when oyster shell was used as aggregate. Surface complexity created drastically different hydrodynamic conditions to flat control tiles, which aligned with increases in larval settlement for oysters and passive particle retention. Overall, fine scale hydrodynamics were influenced by both rough and complex surfaces that substantially increase particle retention, and likely also recruitment success. This study highlights the importance of considering hydrodynamics when designing engineered substrates for shellfish reef restoration projects.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107474"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165120","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}
引用次数: 0
Moss species for bioreceptive concrete: A survey of epilithic urban moss communities and their dynamics
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2024.107502
M. Veeger , E.M. Veenendaal , J. Limpens , M. Ottelé , H.M. Jonkers
Research into bioreceptive materials is gaining increased interest. However, while advances are being made on the material side of bioreceptivity, the underlying ecology of urban mosses is still underexposed. This research aimed to determine how the local environment affects the species composition of urban epilithic moss communities and assess which moss species are most suitable for the colonisation of pristine (bioreceptive) concrete surfaces, leading to recommendations for moss species selection to designers and engineers of bioreceptive structures. We conducted a field survey of 137 moss communities on concrete in the Dutch cities of Amsterdam, Rotterdam and The Hague. A total of 26 different species were found, of which the acrocarp species Tortula muralis, Grimmia pulvinata, Ptychostomum capillare, and Orthotrichum diaphanum and the pleurocarp species Brachythecium rutabulum, Hypnum cupressiforme, and Rhynchostegium confertum acted as most common pioneers and also formed a part of the climax community. We found some positive associations between acrocarp species but negative associations between acrocarp and pleurocarp species. Local environmental factors only played a small role in the community composition at a species level; however, when comparing acrocarp and pleurocarp species, the former preferred more exposed sites, whereas the latter preferred more shaded habitats. As such, we recommend that bioreceptive concrete structures use acrocarp pioneers for exposed locations and pleurocarp pioneers for more shaded locations.
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引用次数: 0
Impacts of flood retention dams on benthic invertebrates by affecting bed material size and disturbance in reservoir and downstream sections
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2024.107509
Ryota Nakamura, Sohei Kobayashi, Sameh Ahmed Kantoush, Tetsuya Sumi
The impacts of Flood Retention Dams (FRDs), designed solely for flood control and featuring bottom outlets at the riverbed level, on benthic invertebrate communities have not been sufficiently elucidated. This study investigated the impact of FRDs on benthic invertebrate communities downstream and reservoirs, focusing on differences in riverbed conditions and bed disturbances caused by reservoir sedimentation. We compared benthic invertebrate communities and riverbed conditions at upstream, reservoir, and downstream sites from seven FRDs in Japan. The average community similarity between the upstream and downstream sites across the seven dams was 0.73, comparable to unregulated streams. They were not related to the duration of dam operation, indicating minimal long-term impacts on downstream communities. However, the community similarity between the upstream and reservoir sites was notably lower, at 0.66. Reservoir sites had smaller grain sizes and softer substrates with narrower interstitial spaces than upstream sites. Consequently, taxes that inhabit or move across stone surfaces were more common in reservoirs. Conversely, taxa that prefer stable beds and larger body sizes were less frequent. Additionally, we found that reservoir sedimentation fluctuations, which indicates riverbed disturbance pattern, influence the similarity of invertebrate communities between upstream and downstream sites. To conclude, FRDs have negligible impacts on benthic invertebrate communities at DS sites; smaller grain sizes modulate these communities at RS sites. Predicting reservoir sedimentation fluctuations supports the design of FRDs with minimal impacts on benthic invertebrates.
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引用次数: 0
Incorporating ecosystem service value into water resource management in water-scarce cities
IF 3.9 2区 环境科学与生态学 Q1 ECOLOGY Pub Date : 2025-02-01 DOI: 10.1016/j.ecoleng.2025.107533
Yi Yang, Yue Su, Chenxue Liang, Yuwei Jia
The lack of carrying capacity of the water environment in water-scarce cities has highlighted the vulnerability of water ecosystems. Ecological water supply can no longer meet the needs of urban development, and the complexity of water ecosystems has led to unprecedented challenges in urban governance. This study improves the accounting framework for the water resource ecosystem service value (WESV) based on the System of Environmental and Economic Accounting and validates it with the case of Xi'an, the ancient capital of China. Based on the characterization of the changes in water resources assets, the WESV was accounted for by combining the equivalent factor with the water footprint method, and the impacts of socioeconomic and natural endowment factors on WESV were explored. The results showed that among the different ecosystem service types, water area contributed the most to the increase in ecosystem service value. The WESV reached 94.86 million US dollars in 2019, up 15.8 % from 2010. Regulating services are a core function, accounting for 81.4 % of the WESV. The declining value of the corrected provisioning service indicates a decreasing level of urban consumption of water ecosystems. Population density and the GDP positively drive WESV changes, and the effects of pressure factor and urbanization rate are negative. The contribution of natural endowment factors is large but characterized by instability. The findings indicate that WESV enhancement could help alleviate the urban water shortage problem. It provides a scientific basis to improve the transparency of urban water resource utilization and the water resources management level.
{"title":"Incorporating ecosystem service value into water resource management in water-scarce cities","authors":"Yi Yang,&nbsp;Yue Su,&nbsp;Chenxue Liang,&nbsp;Yuwei Jia","doi":"10.1016/j.ecoleng.2025.107533","DOIUrl":"10.1016/j.ecoleng.2025.107533","url":null,"abstract":"<div><div>The lack of carrying capacity of the water environment in water-scarce cities has highlighted the vulnerability of water ecosystems. Ecological water supply can no longer meet the needs of urban development, and the complexity of water ecosystems has led to unprecedented challenges in urban governance. This study improves the accounting framework for the water resource ecosystem service value (WESV) based on the System of Environmental and Economic Accounting and validates it with the case of Xi'an, the ancient capital of China. Based on the characterization of the changes in water resources assets, the WESV was accounted for by combining the equivalent factor with the water footprint method, and the impacts of socioeconomic and natural endowment factors on WESV were explored. The results showed that among the different ecosystem service types, water area contributed the most to the increase in ecosystem service value. The WESV reached 94.86 million US dollars in 2019, up 15.8 % from 2010. Regulating services are a core function, accounting for 81.4 % of the WESV. The declining value of the corrected provisioning service indicates a decreasing level of urban consumption of water ecosystems. Population density and the GDP positively drive WESV changes, and the effects of pressure factor and urbanization rate are negative. The contribution of natural endowment factors is large but characterized by instability. The findings indicate that WESV enhancement could help alleviate the urban water shortage problem. It provides a scientific basis to improve the transparency of urban water resource utilization and the water resources management level.</div></div>","PeriodicalId":11490,"journal":{"name":"Ecological Engineering","volume":"212 ","pages":"Article 107533"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165529","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
期刊
Ecological Engineering
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