Journal of Environmental Management最新文献

{"title":"Advantages of the E-CMRSET model in unveiling evapotranspiration water consumption patterns in the inland river basin","authors":"Hongxin Liu ,&nbsp;Aihua Long ,&nbsp;Yongmin Yang ,&nbsp;Jiawen Yu","doi":"10.1016/j.jenvman.2025.125426","DOIUrl":"10.1016/j.jenvman.2025.125426","url":null,"abstract":"<div><div>Vegetation serves as a critical link between the hydrosphere, biosphere, and atmosphere, playing a vital role in the terrestrial water cycle. In arid and semi-arid regions, soil moisture stands out as the primary factor regulating evapotranspiration. Over the past two decades, the comprehensive management project in the Tarim River Basin (TRB, a typical case of an inland river basin in an arid area) has induced substantial changes in the underlying surface, marked by a significant increase in vegetation cover. This shift has the potential to escalate evapotranspiration, intensifying water-related challenges in the region. To assess landscape-scale evapotranspiration in TRB, we employed the enhanced CSIRO MODIS Reflectance-based Scaling EvapoTranspiration model (E-CMRSET), incorporating vegetation changes and soil moisture dynamics as new components. Our analysis delved into evapotranspiration variations across different vegetation types within the TRB. Subsequently, we evaluated the impact of these vegetation changes on regional-scale water consumption patterns. Comparative validation results highlight the superior overall performance of the E-CMRSET model in the TRB when compared to the original CMRSET model, ERA5-Land, PMLV2, EB-ET, and MOD16A2. Vegetation-induced alterations have significantly reshaped the spatiotemporal pattern of evapotranspiration. Notably, the expansion of farmland emerges as the primary contributor to the heightened basin-wide evapotranspiration. Areas surrounding artificial oases witness flourishing vegetation, resulting in a noteworthy increase in water consumption. In contrast, regions distant from human activity zones experience substantial reduction in vegetation, exacerbating encroachments on ecological water usage. Our research contributes valuable insights that can inform models and decision-making processes related to evapotranspiration in arid and semi-arid regions.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125426"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878350","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":"Research on the role of bamboo species in the restoration of heavy metal-contaminated soil","authors":"Qin Cao ,&nbsp;Guang-Qian Gou ,&nbsp;Zhao-Xia Dai ,&nbsp;Ai-Juan Tan ,&nbsp;Gui-Li Yang","doi":"10.1016/j.jenvman.2025.125565","DOIUrl":"10.1016/j.jenvman.2025.125565","url":null,"abstract":"<div><div>Heavy metal contamination in the soil has become more serious due to the rapid development of the economy. P<strong>hytoremediation</strong> has evoked widespread curiosity in recent years due to its advantages in terms of being environmentally friendly and sustainable. However, there are few reports on the application of bamboo species in the field of phytoremediation, and a comprehensive overview of their potential for restoring contaminated soil by removing heavy metals is lacking. This paper incorporates existing research on bamboo species for the remediation of heavy metal-contaminated soils. It meticulously debates the physiological responses exhibited by bamboo species to heavy metal stress, encompassing growth and development responses, photosynthetic responses, and antioxidant system responses, among others. Furthermore, it elaborates on the capacity of bamboo for heavy metal accumulation and translocation, as well as their remarkable tolerance and detoxification mechanisms. This comprehensive analysis sheds light on the intricate interactions between bamboo and contaminated soil environments. Additionally, the paper summarizes various strategies for the remediation of heavy metal contamination using bamboo species. This review facilitates a more thorough exploration of the potential applications of bamboo species in the remediation of heavy metal-contaminated soils, offering a novel approach for soil environmental restoration.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125565"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878492","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":"Impact of seasonal variations and water quality parameters on the formation of trihalomethanes and haloacetic acids in drinking water treatment processes","authors":"Alper Alver ,&nbsp;Emine Baştürk ,&nbsp;Ahmet Kılıç","doi":"10.1016/j.jenvman.2025.125567","DOIUrl":"10.1016/j.jenvman.2025.125567","url":null,"abstract":"<div><div>In this study, the combined effects of seasonal variations and water treatment processes on the formation of disinfection by-products (DBPs), focusing on trihalomethanes (THMs) and haloacetic acids (HAAs) within a full-scale conventional drinking water treatment plant, were investigated. The seasonal analysis revealed that autumn exhibited the highest levels of disinfection by-product formation potential (DBPFP), with trihalomethane formation potential (THMFP) and halo acetic acid formation potential (HAAFP) reaching 255 μg/L and 241 μg/L, respectively, likely due to increased organic matter from leaf fall and runoff. In contrast, winter exhibited the lowest concentrations, with THMFP at 150 μg/L and HAAFP at 56 μg/L. It is attributed to lower temperatures that limit organic matter reactivity. Correlations between 24 water quality parameters and DBPFP types were also examined, identifying critical parameters with the highest correlations. These parameters, including UV₂₅₄ absorbance and total organic carbon, were used to develop regression models sensitive to seasonal changes and treatment stages. Among the treatment units, the coagulation and aeration stages achieved notable reductions in THM precursors, whereas HAA precursors were less effectively removed, persisting into secondary treatment stages. Chloroform was the predominant THM species, with a peak concentration of 100 μg/L in autumn, decreasing to 76 μg/L in summer, possibly due to increased volatilization in warmer months. For HAAs, dichloroacetic acid displayed the highest seasonal variability, peaking in autumn at 28 μg/L. These findings highlight the need for seasonally adaptive treatment strategies, particularly during high-risk autumn periods when DBPFP levels are elevated. This study provides actionable insights into optimizing treatment protocols to improve DBP control, emphasizing seasonal adjustments’ critical role in ensuring compliance with water quality standards.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125567"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881806","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":"A multimethod approach for building climate literacy and a climate portal in the context of spatial regional planning in northern Patagonia","authors":"Claudio Pareja Pineda ,&nbsp;Álvaro Salazar ,&nbsp;María Paz Acuña ,&nbsp;Diego Ocampo Melgar ,&nbsp;María Ester Sepúlveda ,&nbsp;Francisco Bravo","doi":"10.1016/j.jenvman.2025.125397","DOIUrl":"10.1016/j.jenvman.2025.125397","url":null,"abstract":"<div><div>Integrating climate change considerations into planning at the subnational level is imperative for effective adaptation and risk reduction. Increased climate literacy among planners, supported by tools like climate portals can help this integration. This paper presents our approach to conveying a reasonable level of climate literacy and co-developing an online portal that provides useable climate information to planners. The approach was implemented in Northern Patagonia in collaboration with a Regional Government in preparation for their first-ever Land-Use Regional Plan. Our findings show that planners lack explicit experience in integrating climate considerations into planning but possess significant awareness of climate impacts. While national climate change assessments help identifying critical adaptation priorities, a coproduction approach was still needed for developing region-specific actionable climate information. By implementing the proposed multi-method approach, including interviews and simulated planning exercises, key features were identified and achieved: a learning process, through an interdisciplinary team, should be in place to promote usage, climate data must be at the relevant scale, contextual information should be included, the portal must be interactive so planners may incorporate their knowledge, and, since climate data can be understood in different ways, planning objectives can contextualize different interpretations. Hands-on workshops, integral to the co-production process, enhanced planners’ climate literacy by fostering practical understanding and use of climate indices. This collaborative approach highlights how tailored climate tools may bridge the gap between science and planning, providing critical support for effective climate adaptation.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125397"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878505","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":"Developing mixed-effects aboveground biomass model using biotic and abiotic variables for moso bamboo in China","authors":"Xiao Zhou ,&nbsp;Xuan Zhang ,&nbsp;Ram P. Sharma ,&nbsp;Fengying Guan","doi":"10.1016/j.jenvman.2025.125544","DOIUrl":"10.1016/j.jenvman.2025.125544","url":null,"abstract":"<div><div>Moso bamboo forests, which are distributed across southern China, have played the important roles in the global carbon cycle and contribute significantly to mitigating the impacts of climate change. Previous studies on moso bamboo have focused mainly on the impacts of climate change and competition intensity on aboveground biomass (AGB), ignoring the effects of soil and topographic factors on the allometric relationships between biomass and bamboo structural variables and carbon allocation to different geographical regions. This study applied a mixed-effects modeling approach to analyze AGB data acquired from the destructive sampling and measurements of 306 moso bamboo individuals in southern China. The power function was used to develop a two-level (growth region [province]- and elevation-levels) mixed-effects AGB model with diameter of breast height (DBH), topography, climate, and soil characteristics used as predictor variables. Variations of AGB caused by differences of growth regions and elevations were described by random components in the model. The results showed that environmental heterogeneity across growth regions led to substantial differences in the scaling exponent of the power function. Incorporating DBH, height (H), the de Martonne aridity index, sine of the slope combined with the natural logarithm of elevation, sand, and rock fragment (RF) (soil) into the AGB model significantly improved its prediction performance. Increasing DBH, H, soil RF, and precipitation and reducing soil sand fraction to a certain extent showed beneficial effects on moso bamboo AGB accumulation. The model reveals strong relationships between AGB and bamboo structural variables, topography, climate, and soil factors. The model will be useful for developing bamboo forest management strategies in line with the environmental changes, and can offer a novel approach for carbon accounting in the context of climate change.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125544"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881812","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":"Unlocking the potential of parboiled rice mill effluent: From microalgae cultivation to bioelectricity production for sustainable development","authors":"K. Sandhya ,&nbsp;C.K. Sunil ,&nbsp;J.A. Moses ,&nbsp;Mahendran Radhakrishnan ,&nbsp;Venkatachalapathy Natarajan","doi":"10.1016/j.jenvman.2025.125558","DOIUrl":"10.1016/j.jenvman.2025.125558","url":null,"abstract":"<div><div>Rice is a staple food in many Asian countries, and parboiling is a crucial process to reduce grain breakage and improve head rice yield during milling. However, this process generates substantial amounts of nutrient-rich effluent, which, if inadequately treated, leads to environmental issues such as eutrophication. The present review critically examines the parboiling process, highlighting that wastewater contains high concentrations of nitrogen, phosphorus, and organic matter with Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). These nutrients, when utilized effectively, can support sustainable practices such as microalgae cultivation for food and biomass, biofertilizer production, and bioenergy generation, including biofuel and bioelectricity through microbial fuel cells (MFCs). Around 94 % reduction in COD levels and 90 % removal in nitrogen and phosphorus is achieved on effective utilization of nutrients in wastewater for biomass cultivation. Strategies for odor management in parboiling units are also discussed, leveraging techniques such as activated carbon adsorption and advanced oxidation processes adapted from municipal wastewater treatments. The manuscript emphasizes a circular economy approach, proposing integrated solutions for effluent reuse to minimize environmental impact and support sustainable agricultural and energy practices. Future research directions focus on scaling these technologies and optimizing their cost-effectiveness.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125558"},"PeriodicalIF":8.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881990","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":"Seasonal management of multiple stressors: Interactive effects of dams and urbanization on pollution loads in the Shaying River Basin, eastern China","authors":"Yan Liu ,&nbsp;Xufei Jiang ,&nbsp;Mengshuo Liu ,&nbsp;Yipeng Yao ,&nbsp;Jiachen Shen ,&nbsp;Xin Leng","doi":"10.1016/j.jenvman.2025.125473","DOIUrl":"10.1016/j.jenvman.2025.125473","url":null,"abstract":"<div><div>With population growth and accelerating urbanization in developing regions, numerous dams have been built to support industrial activities and residential water supply. These developments have exposed rivers to the multiple stressors of dams and urbanization, complicating river restoration and water quality predictions. Understanding of how these stressors interact to influence water quality is crucial for effective river management. Therefore, during the wet and dry seasons, we investigated pollutant concentrations (including EC, COD, TN, NH3-N, and TP) and habitat quality in four river systems across different stressor combinations of dam presence/absence and high- or low-intensity urbanization. The findings suggested that the interaction between dams and urbanization exerted additive effect on pollution load (PL) in the wet season and synergistic effect in the dry season. The generalized linear model (GLM) and structural equation modeling (SEM) results revealed that in the wet season, PL was directly influenced by both dams and urbanization, whereas in the dry season, they were driven indirectly by habitat degradation and directly by urbanization. The results of distance-based redundancy analysis (db-RDA) and variation partitioning analysis (VPA) revealed that the interactive effects contributed more to the variation in the structure of water quality parameters (WQPs) in the dry season (27.9 %) than in the wet season (11.3 %). Moreover, in the wet season, PL in the dam group increased gradually from upstream to downstream, whereas in the dry season, an increase occurred in the urban group. Dam elements (flood control and power generation) explained most of variance (29.7 %) in the WQPs in the wet season, whereas urbanization elements (nightlight intensity and land use index) explained most of the variance (33.8 %) in the dry season. It is recommended that in the wet season, dams should be collectively regulated to prevent pollutant migration via flood discharge, whereas in the dry season, efforts should focus on restoring riparian habitats and reducing urban point source pollution.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"383 ","pages":"Article 125473"},"PeriodicalIF":8.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876771","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":"Assessment cascade biorefinery process from corn stover: furfural and volatile fatty acid production via anaerobic fermentation","authors":"Alba Ester Illera ,&nbsp;María Teresa Sanz ,&nbsp;Miguel Mauricio-Iglesias ,&nbsp;Juan Cubero-Cardoso","doi":"10.1016/j.jenvman.2025.125516","DOIUrl":"10.1016/j.jenvman.2025.125516","url":null,"abstract":"<div><div>A cascade biorefinery concept was proposed for the first time to produce furfural and subsequent volatile fatty acids production using corn stover as biomass. In the first step, Subcritical water pre-treatment was used to extract furfural from hemicellulose into the liquid phase, while the solid phase, rich in cellulose and lignin, was fermented anaerobically in the second step to produce volatile fatty acids (VFA). A subcritical water treatment combined with CO₂ as pressurizing agent was used both as a pre-treatment of the biomass, and for the production of furfural from the hemicellulose fraction of the lignocellulosic biomass. After 1h at 180 °C and 50 bar, a furfural yield of 29 % was obtained in the liquid phase. Acetic and formic acid were generated as side products of the treatment. Following this treatment, 49.4 % of the initial solids were recovered, with a marked reduction in hemicellulose content (from 33 % to 5 %) and an increase in both cellulose (from 39 % to 62 %) and lignin (from 21 % to 33 %). This solid was then subjected to anaerobic fermentation. Inoculum type was a key parameter, with 12 % higher volatile fatty acids production when cow rumen was used compared to anaerobic digestion (AD) sludge from a wastewater treatment plant. Pre-treatment of corn stover did not improve organic matter biodegradation, probably due to its high lignin content. However, the proposed cascade biorefinery showed to be successful for the consecutive production of two value-added products using low value corn stover as the raw material.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125516"},"PeriodicalIF":8.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877501","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":"Using sulfur and oxygen isotope values to partition riverine sulfate sources and illustrate their responses to hydrological processes","authors":"Ying Cao ,&nbsp;Yuxiao He ,&nbsp;Dong Zhang ,&nbsp;Yong Qin ,&nbsp;Zhiqi Zhao ,&nbsp;Cong Zhang ,&nbsp;Shanggui Gong","doi":"10.1016/j.jenvman.2025.125539","DOIUrl":"10.1016/j.jenvman.2025.125539","url":null,"abstract":"<div><div>Orogenesis contributes to the elevation of highly eroded rock strata, whose interactions with the atmosphere, water, and biota result in the release of dissolved substances. The fluvial transport of dissolved sulfate (SO₄²⁻) from mountains to oceans is a critical component of the global sulfur cycle. However, anthropogenic activities have significantly increased the concentrations of sulfate and altered isotope compositions. It is imperative to delineate the impacts of anthropogenic disturbances and clear their transport mechanisms. To address this issue, spatial and temporal water samples were collected from the Qin River Basin (QRB) between 2012 and 2015. Sulfate sulfur and oxygen isotope values (δ³⁴S-SO₄^2- and δ¹⁸O-SO₄^2-), alongside Bayesian isotope mixing models (BIMMs) were employed to identify pathways of anthropogenic inputs and quantify their contributions. The average mainstream SO₄²⁻ concentration, δ³⁴S-SO₄^2- and δ¹⁸O-SO₄^2- values in the upper reaches (<em>n</em> = 18), middle (<em>n</em> = 9), and lower reaches (<em>n</em> = 44) were 1.09 mmol/L, 1.5 ‰ and 5.6 ‰; 1.34 mmol/L, 6.8 ‰ and 6.9 ‰; 2.31 mmol/L, 8.5 ‰ and 7.7 ‰, respectively. BIMMs results from spatial water samples indicated an increasing trend in contributions from gypsum, loess, sewage and chemical fertilizer but a decreasing trend from coal mine drainage (CMD) and pedogenic sulfate sources to riverine sulfate along the river. Results from temporal water samples at the outlet indicated that pedogenic sulfate, CMD, and loess sulfate were transport-limited, conversely, gypsum and chemical fertilizer were source-limited, and sewage has chemostatic behaviors. Despite a significant reduction in annual water discharge since 1956–2000, the average annual sulfate flux from 2013 to 2015 exceeded historical values, with approximately 45 % of riverine sulfate derived from anthropogenic input, and the flow-weighted average δ³⁴S-SO₄^2- and δ¹⁸O‒SO₄^2- values changed to 7.9 ± 1.2 ‰ and 6.4 ± 0.2 ‰. These findings illuminated the profound impacts of anthropogenic inputs on riverine sulfate flux in Qin River and offer a robust methodology for partitioning aqueous pollution sources and delineating their transport mechanisms in the complex environmental settings.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125539"},"PeriodicalIF":8.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877500","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":"Haplotype-specific interactions of Phragmites australis with Spartina alterniflora under salt stress","authors":"Xiao Guo ,&nbsp;Zhihang Sun ,&nbsp;Yufei Gao ,&nbsp;Haijie Zhang ,&nbsp;Qiang Wang ,&nbsp;Xianhu Guo ,&nbsp;Mingyan Li ,&nbsp;Lele Liu ,&nbsp;Jiaao Lu ,&nbsp;Shaoxia Guo ,&nbsp;Shimei Li ,&nbsp;Weihua Guo","doi":"10.1016/j.jenvman.2025.125506","DOIUrl":"10.1016/j.jenvman.2025.125506","url":null,"abstract":"<div><div>Biological invasions present a global environmental challenge, the competitive interactions between native and invasive species constitute a crucial factor in determining the success of invasions. Past research has often treated native species as a monolithic entity when conducting competition experiments with invasive species. In truth, different genotypes may possess substantial differences in functional traits and competitive abilities. Few studies have subdivided widespread native species into distinct subgroups to conduct competitive experiments with invasive species. The invasive <em>Spartina alterniflora</em> and the widespread native <em>Phragmites australis</em> coexist extensively along the coastal regions of China. Through field sample collection and greenhouse common garden experiments, we investigated the salinity tolerance of two common haplotypes of <em>P. australis</em> (haplotype O and haplotype P) in the Yellow River Delta, as well as their relative competitive ability against the invasive <em>S. alterniflora</em> across varying salinity levels. The results showed that under high salinity without competition, the biomass of haplotype O decreased by 46.89 % (haplotype P: 40.0 %), while under low salinity with competition, it decreased by 17.7 % (haplotype P: 25.8 %). The competitive dominance of both haplotypes against <em>S. alterniflora</em> gradually diminished as salinity increased, disappearing under high salinity conditions. Haplotype O exhibited a competitive dominance over <em>S. alterniflora</em> under control and low-salinity stress, whereas haplotype P only showed competitive dominance under control conditions. Our study demonstrates that different genotypes of native species possess varying resistance to invasive species, a consideration that is critical in the practice of using native species for biotic substitution to control invasions.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"384 ","pages":"Article 125506"},"PeriodicalIF":8.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877506","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}