Assimilation Process Research Articles

Nitrogen form mediates sink strength and resource allocation of a C3 root crop under elevated CO2

Plant physiological processes alter with elevated carbon dioxide concentrations in the atmosphere (eCO2), which affects the growth and yield potential of crops. Among plants with C3 carbon fixation, root crops show highest yield response under eCO2 which is suggested to be linked to their large carbon (C) sink strength. The high C gain under eCO2 can be limited by processes that constrain sink capacity, such as nitrogen (N) supply. Different N sources may interact with eCO2 and thus have variable impacts on carboxylation activity, N uptake efficiency and plant development. This study aims at contributing to a better understanding of sink-driven assimilation, re-allocation and finally growth processes under eCO2 as a function of N-form. Radish (Raphanus sativus L. var. sativus), a C3 tuber plant with strong sink strength, was used. The plants were grown in pots in climate chambers at 400 ppm (aCO2) and 1000 ppm CO2 (eCO2) with either pure nitrate or ammonium-dominated nutrition. A split plot design was applied. Plants were harvested after four weeks and physiological, morphological and chemical parameters in leaves and tubers were assessed. The N-form had no effect on N acquisition, but affected C and N partitioning into plant organs differently under eCO2. N assimilation processes of nitrate-fed plants were focussed on leaves being both source and sink, and those of ammonium-fed plants on tubers, the strongly pronounced sink. Acclimation of CO2 fixation due to eCO2 did not occur for both N forms, probably due to altered sink strength and low N content in leaves. The N-form influences the sink-driven C and N balance and thus enables unrestricted carbon gain as well as the variation of organ development under future eCO2 conditions. These processes can be utilized in cultivation and breeding.

The process of vowel harmony in Kurdish language in the framework of Autosegmental phonology

This study discusses the vowels harmony in Kurdish language. Vowel harmony like assimilation process is a very common process in most languages of the world. This process is studied by most phonological theories, such as generative phonology, autosegmental phonology as well as optimality theory. We examine this process from the perspective of autosegmental phonology in this paper. Therefore, we can say that the aim of this study is to investigate the process of vowel harmony in Kurdish language from the perspective of autosegmental phonology. The methodology of this study is to analyze the content of the articles and collect the data with appropriate samples. Autosegmental theory is one of the theories in the field of phonology and was first emerged by Goldsmith as an independent field of generative phonology. In 1976, along with the study of rhyme languages, he introduced autosegmental phonology and then it was published in tonal languages. This theory is actually a field or part of production phonology.

Harmonization of Tradition and Islam: Mediating Culture and Religious Beliefs in Maccera Tasi Ritual in Luwu, South Sulawesi

This study explores the Maccera Tasi tradition in Bonepute Village, Luwu Regency, South Sulawesi, examining its intersection with Islam and local culture. Recently, the Indonesian Ulema Council (MUI) of South Sulawesi deemed this long-standing tradition as shirk, or polytheistic, asserting that it contradicts Islamic law. This declaration was made by the MUI’s fatwa commission following public reports about rituals involving offerings of livestock heads, such as cows, buffalo, or goats, or other food into the ocean. In response to these reports, the Regional MUI team conducted a field research whose findings were reported to the South Sulawesi MUI. This report served as the basis for the aforementioned announcement. While some perceive the Maccera Tasi practice as an expression of gratitude for the harvest, others label it as shirk (polytheism). The present study employed field research, utilizing qualitative descriptive analysis. Data were collected through observation, interviews, and documentation. The research participants included religious leaders, traditional leaders, community leaders and local government representatives from Bonepute. The findings of this research suggest that religion and local traditions can coexist, fostering social cohesion without infringing upon Islamic law. This harmonious coexistence encourages the Bonepute community, particularly fishermen, to express gratitude for the blessings bestowed by Allah SWT. This gratitude is manifested through prayer, the release of seeds, and marine fish food, which are interpreted as forms of environmental stewardship. Therefore, this study contends that the perception of the Maccera Tasi practice as polytheistic is inaccurate. Instead, this practice represents an Islamic expression of preserving local culture through a process of religious and cultural assimilation.

German minority in urban space of a textile manufacturing centre: the case of 19th century city of Łódź

German settlement in Poland has been the subject of numerous studies. The causes and determinants of migratory movements have been discussed extensively, while little attention has been paid to the spatial aspects of the phenomenon. The aim of this study, which is part of geographical and historical research, is to determine the size of the influx of migrants of German nationality into the rapidly developing textile production centre of Łódź in the 19th century, as well as the geographical origins and distribution of this nationality group in the urban space. These considerations are complemented by the identification of key issues related to the social integration and assimilation processes of the German minority. In the first half of the 19th century, the influx of skilled labour, almost entirely recruited from the German population, conditioned the development of the textile industry in Łódź. It also had a key influence on the demographic development of Łódź, which soon became the largest centre of textile production in Poland. In subsequent decades, there was a tendency among German immigrants towards separation in the sphere of professional and social activities, but already by the end of the 19th century the German community settled in Łódź was diverse in terms of the sense of nationality. In addition to a certain proportion of the immigrants who were already Polonised, there were persons declaring German nationality, as well as those undecided about the issue.

Job ladders and labour market assimilation of immigrants

Using Danish linked employer–employee data, this study examines the importance of access to higher-paying firms in the wage assimilation process among immigrants during their 25-year tenure in Denmark. Upon their arrival, immigrant workers in Denmark earn substantially lower wages than their native counterparts. However, this wage gap diminishes rapidly within the first 5–10 years, particularly among more disadvantaged immigrant groups (non-OECD and female immigrants). Immigrants who enter the labour market early have higher earnings capacity than those who enter later, but this trend reverses after 15 years. The transition to higher-paying firms constitutes a crucial factor in wage assimilation during the initial 5 years, yet it does not account for wage growth beyond this period. Additionally, this study offers suggestive evidence that Danish firms’ wage policies vary based on the duration since migration, and these differences significantly contribute to the wage assimilation process.

Optimal sensor placement for ensemble-based data assimilation using gradient-weighted class activation mapping

We introduce an optimal sensor placement method using convolutional neural networks for ensemble-based data assimilation. The proposed method utilizes the gradient-weighted class activation mapping of the convolutional neural networks to identify important regions for assimilation processes. It is achieved by using the initial ensemble of samples for data assimilation as training data to construct a convolutional neural network-based surrogate model. In doing so, the method can estimate optimal sensor locations in an a priori manner, allowing for sensor placement before conducting data assimilation processing. Moreover, the gradient-weighted class activation mapping is used to alleviate the effect of error accumulation during the backpropagation process through global averaging. Further, these observation sensors are incorporated to reconstruct mean turbulent flow fields based on the ensemble Kalman method. The proposed optimal sensor placement method is applied to two flow applications with complex geometries, i.e., flows around periodic hills and an axisymmetric body of revolution. Both cases demonstrate that the proposed method can significantly reduce the number of sensors without sacrificing the accuracy of the reconstructed flow field.

ANCHOR: Global Parametrized Ionospheric Data Assimilation

AbstractANCHOR is a novel assimilative model developed at the U.S. Naval Research Laboratory, which was designed for rapid assimilative runs. ANCHOR uses recently developed PyIRI model for the background and for the formation of the background covariance matrix. It only takes a few minutes for ANCHOR to complete the data assimilation (DA) for one day, including data pre‐processing and model set up. ANCHOR extracts ionospheric parameters from radio occultation (RO) and ionosonde data using PyIRI formalism and assimilates them as point measurements into maps of the background parameters using a Kalman Filter approach. This paper introduces the ANCHOR algorithm, discusses its coordinate system and background, explains the background covariance formation, discusses the extraction of the ionospheric parameters from the data and the assimilation process, and, finally, shows the results of the observing system simulation experiment with synthetic data simulated using the SAMI3 model. ANCHOR reduces the root mean square errors in the analysis by more than a half for all of the ionospheric parameters in comparison to the background. Finally, this paper discusses advantages and limitations of the parametrized ionospheric DA, highlighting the avenues for its future improvement.

Features of the formation of interiors of educational space of primary schools based on energy efficiency, technology and safety

The article explores the scientific and technical sources and principles of the design of premises of primary schools and identifies the main aspects of the formation of educational space in primary schools taking into account the needs of modern conditions, ergonomic, emotional, psychophysiological, anthropometric, aesthetic requirements and standards to create an effective, technological and safe learning environment for children of primary school age. The specificity and problems of the impact of space on the psycho-emotional state of the student, the process of learning, perception, and assimilation of the material by the students as a whole are formed and highlighted. Recommendations for the design of functional interiors of the educational environment of primary schools are given. Within the framework of the study, various parameters of interior design were analyzed, such as the selection of furniture and finishing materials, the placement of furniture and equipment in the space, the principle of flexible classroom zoning, the selection of a color solution for the future educational environment, etc. The article emphasizes the importance of maintaining and taking into account these features of the design of modern school spaces, to create such conditions that would meet the most important needs of children of early school age, were efficient, technological, and at the same time safe.

Migration, Partner Selection, and Fertility in Germany: How Many Children are Born in Mixed Unions?

For the German context, we investigate whether the number of children ever born differs between mixed unions (exogamous unions between natives and migrants or migrant descendants) and endogamous unions (unions among co-ethnics). Our theoretical considerations are derived from assimilation theories, which view exogamous unions as indicators of assimilation processes, and the framework on migrant fertility. The migrant (or descendant) partner in an exogamous union may adapt to the majority group, both partners may adapt to each other, or both partners may constitute a selected group in their fertility preferences. However, due to the higher likelihood of conflicts within the partnership and of separation, exogamy may disrupt family formation processes and depress couples’ fertility. Drawing on data from the GSOEP (1984–2020), we estimate generalized Poisson regressions. The results reveal that the number of children ever born is higher in exogamous unions than in endogamous native couples. This general pattern largely persists across migrant generations and regions of origin, but we identify gender differences. While fertility in exogamous unions of native women/migrant (descendant) men is not statistically different from fertility in native/native couples, unions of migrant (descendant) women/native men have more children, especially when controlling for socio-demographic confounders. Our results demonstrate that in the German context, exogamy does not lead to fertility disruptions, and is not straightforwardly associated with assimilation to the fertility of the majority group. Instead, differences in gendered partner choice patterns and life-course transitions may influence the number of children exogamous couples have.

Digital product development team external knowledge processes and ambidexterity: a multi-mediation analysis of the absorptive capacity framework

PurposeThe purpose of this study is to examine the mechanisms of absorptive capacity (ACAP) in the specific context of digital product development teams. More precisely, it explores the process of internalizing and utilizing external knowledge from sources outside the team to promote the development of innovative ambidexterity.Design/methodology/approachThe study employs the ACAP framework and directs specific attention to the concept of knowledge assimilation, encompassing comprehension, documentation and dissemination. Seventy-five employees of one of Indonesia’s largest commercial banks were surveyed about two initiatives they participated in. To this end, 12 research hypotheses are formulated, tested and analyzed using structural equation modeling.FindingsKnowledge comprehension, documentation and dissemination are found to mediate between knowledge acquisition and knowledge exploitation. At the same time, the relationship between knowledge acquisition and knowledge transformation is mediated by knowledge comprehension and dissemination, but not documentation. The authors also found that knowledge transformation positively mediates between knowledge comprehension and dissemination on the one hand and ambidexterity on the other hand. Importantly, knowledge exploitation negatively mediates between knowledge comprehension and documentation on the one hand and ambidexterity on the other hand.Originality/valueThis study contributes to the existing body of knowledge by offering nuanced insights into the interplay of knowledge assimilation processes within ACAP, particularly in the context of digital product development. The identification of mediating factors and their impacts on ambidexterity provides valuable implications for both theory and practice in this domain.

Identification of Wheat Glutamate Synthetase Gene Family and Expression Analysis under Nitrogen Stress.

Nitrogen (N), as the main component of biological macromolecules, maintains the basic process of plant growth and development. GOGAT, as a key enzyme in the N assimilation process, catalyzes α-ketoglutaric acid and glutamine to form glutamate. In this study, six GOGAT genes in wheat (Triticum aestivum L.) were identified and classified into two subfamilies, Fd-GOGAT (TaGOGAT2s) and NADH-GOGAT (TaGOGAT3s), according to the type of electron donor. Subcellular localization prediction showed that TaGOGAT3-D was localized in mitochondria and that the other five TaGOGATs were localized in chloroplasts. Via the analysis of promoter elements, many binding sites related to growth and development, hormone regulation and plant stress resistance regulations were found on the TaGOGAT promoters. The tissue-specificity expression analysis showed that TaGOGAT2s were mainly expressed in wheat leaves and flag leaves, while TaGOGAT3s were highly expressed in roots and leaves. The expression level of TaGOGATs and the enzyme activity of TaGOGAT3s in the leaves and roots of wheat seedlings were influenced by the treatment of N deficiency. This study conducted a systematic analysis of wheat GOGAT genes, providing a theoretical basis not only for the functional analysis of TaGOGATs, but also for the study of wheat nitrogen use efficiency (NUE).

Фонетические процессы в сочетаниях согласных (на материале осетинского языка)

The aim of the research is to identify all potential consonant clusters in the modern Ossetian literary language where assimilative and dissimilative changes are possible. The article discusses a detailed algorithm aimed at creating a theoretical basis for an orthoepic dictionary of the Ossetian literary language. The research is novel in that it is the first to obtain data on all possible assimilative and dissimilative processes in the Ossetian literary language. Consonant clusters were identified using a representative corpus of Ossetian texts presented on the Internet and consisting of 836,593 words. As a result of the study of 819 consonant clusters, such combinations were found in which, based on data on the phonemes of the Ossetian literary language, assimilative processes could be expected. In particular, this refers to consonant clusters where voiced and voiceless consonants meet at the boundaries of morphemes, voiced consonants in the final position and voiced consonants at the boundaries of morphemes. To determine the phonetic processes that occur in these clusters (progressive assimilation for voicing/devoicing, regressive assimilation for voicing/devoicing), words containing such clusters were included in the instrumental analysis program.

Carbonatite Metasomatism in a Subvolcanic Setting: Breccia at the Badou Carbonatite in the North China Craton and Implications for Magmatic Evolution and Eruptive Style

Abstract The genesis and primary compositions of carbonatite melts are enigmatic owing to their reactivity and resulting contamination in the mantle and crust. This overprints earlier uncontaminated compositions and obscures their origins. The subvolcanic Badou carbonatite in the North China Craton is characterized by brecciated textures and comprises pristine clinopyroxene, mica, and apatite phenocrysts in a mixed, carbonate–silicate matrix. Here, we provide mineralogical, textural, and major and trace elemental results to reveal the mantle derivation of the Badou carbonatite melt, and its compositional modification during interaction with crustal materials. Clinopyroxene and apatite phenocrysts have initial Sr isotopes (0.70920–0.71037) similar to brecciated calcite (0.71028–0.71159) and the whole rock (0.70953–0.71061), indicating a common source. Rare Mg-rich clinopyroxene and mica contain high Cr and Ni contents, recording direct mantle derivation without immiscibility from silicate melts. Abundant feldspars and aegirine, occurring as both phenocrysts and fine-grained matrix, formed an antiskarn at relatively low temperatures indicating extensive silica contamination upon crustal emplacement. Silica contamination is further indicated by britholite-rich apatite rims and relict quartz cores in clinopyroxene. Zircon xenocrysts were partly assimilated, indicated by Zr and Hf enrichment in late-stage silicates, and partly underwent decomposition to baddeleyite in a decreasing silica activity environment. The assimilation process consumed the carbonate melt, forming refractory silicate minerals and CO2 vapor, leading to near-surface gas overpressure with a decrease in magma viscosity. This elevates the potential for explosive activity, which, in turn, provides a positive feedback mechanism for silica assimilation. The complex evolution of the carbonatite melt in the crust might be responsible for the compositional gap between the natural rocks and experimental outcomes, and results in different eruption styles.

The impact of social media influencer's age cue on older adults' travel intention: The moderating roles of travel cues and travel constraints

The global aging population brings a growing older traveler market. This study applies social comparison theory to explore how travel influencers' age cues affect older adults’ travel intention through a dual process of assimilation (direct effect) and contrast (mediated by age identity). The moderating effects of travel cues (activity type and presence/absence of companions) and travel constraints are investigated as boundary conditions. Data were collected from older U.S. travelers through three online experiments. The results indicate that older travelers are inclined to visit destinations featured by old (vs. young) influencers, especially those with low intrapersonal or high interpersonal travel constraints. The marketing message is more effective when it features an old influencer pursuing a challenging (vs. relaxing) activity and a young influencer with companions (vs solo travel). The study findings provide valuable insight into leveraging social media influencer marketing for destinations and tourism businesses.

Дисбаланс маси складових систем типу «середовище – речовина» за шкодочинної дії ендогенних факторів

The method developed and adapted by the authors of this work for determining and analysing the peculiarities of mass imbalance of water, organic and inorganic components in “medium (water)-substance” systems under the influence of harmful exo- and endogenous factors is proposed. The recommended method will help to objectively determine and assess the degree of harmful influence of individual factors on mass homeostasis. In addition, it will allow to characterization of the features of the relationship between the separately taken components of the substances in amniotic and allantois fluids. The presence of long-term effects of inflammatory factors in the fetal membrane fluids of the amnion and allantois is reflected in the functional and placental barrier of the uterus in gestating cows. The direction of the displaced parts of the mass of water, organic and inorganic substances vary depending on the circumstances, either in the direction of increase or in the direction of decrease. It is quite possible that the unequal ability of organic and inorganic substances to bind water is associated with changes in the parameters of the mass of nutrients assimilated by the fetus in the amniotic fluid and accumulation of their breakdown products in the allantois fluid. It has been established that long-term inflammatory processes in the genital organs of pregnant cows alter the manner and quantity of water, organic, and inorganic substances mass parts transferred into the fluid of the fetal membranes of the amnion and allantois through the placental barrier of the uterus. This negatively affects the ability of chemical and biochemical compounds to bind water molecules and alters the intensity of nutrient assimilation processes, converting them into simpler compounds. The strength and method of harmful action determine whether components in the ‘water-substance’ system move towards an increase or decrease in their mass parameters. The consequence of this redistribution is an imbalance in mass homeostasis, negatively impacting the viability, growth, and development of the embryo and newborn fetus.

The Narrative of Parthenius (Ageev) on the Accession of the Kyrgyz Steppe to Russia: from the History of Christianization of Central Asian Peoples

In the context of studying the history of the Orthodox presence of Russia in Central Asia and Western China, we have analyzed the well-known narrative source – the note of schema-abbot Parthenius (Aggeyev 1806–1878) “First news of the Russians in Ghulja” from the point of view of its objectivity and correspondence to the historical events of the 3rd quarter of the XIXth century, associated with the annexation of Central Asian territories to the Russian Empire, such as the establishment of Russian consulates in Kuldzha and Chuguchak (1851), the fate of Russian trading posts during the Dungan uprising (1850s – 1860s), the Kuldzha campaign of General G. A. Kolpakovsky and the annexation of the Kuldzha region to the Turkestan General Government (1871), the first stages of negotiations on its return to China (1870s). We pay particular attention to the main plot of Parthenius’s narrative – the Orthodox Christianization of the Central Asian peoples who accepted Russian citizenship. The methodological basis was the methods of historical science (chronological, comparative, content analysis, etc.) with the involvement of the results of research by authoritative historians and archival documents from Russian archives that were not introduced into scientific circulation in order to comply with the principles of historicism and objectivity. In the process of research based on linking plots from the text of schema-abbot Parthenius (Ageev) to specific events from the history of the acquisition of Central Asian possessions by the Russian Empire, it was possible to reconstruct the picture described by Parthenius and correct the shortcomings made by the author. As the results of the analysis have shown, the picture presented by Parthenius, despite the deviations from the chronological and geographical framework, corresponds in the main to the real events and can serve as evidence of the voluntary acculturation of the population of the accession territories. In this respect, the Fr. Parthenius’ narrative is a valuable historical source that should be taken into account when reconstructing the processes of migration, assimilation and Christianization of the peoples of the Kyrgyz steppe and Western China.

ВПЛИВ МЕТАБОЛІЧНО АКТИВНИХ РЕЧОВИН ТА ЇХ КОМБІНАЦІЙ НА АСИМІЛЯЦІЙНІ ПРОЦЕСИ ПРОРОСТКІВ GINKGO BILOBA L.

Ginkgo biloba is a valuable ornamental gymnosperm plant. To ensure an adequate supply of planting material for this species, measures must be taken to cultivate high-quality seedlings resistant to adverse conditions. Pre-sowing treatment of seeds with metabolically active substances can serve as such a measure. The aim of this study was to investigate the growth processes, leaf apparatus formation, and photosynthetic activity of young Ginkgo biloba plants under the influence of metabolically active substances and their combinations. Metabolically active substances used to treat ginkgo seeds included vitamin E, ubiquinone-10, paraoxybenzoic acid (POBA), magnesium sulfate (MgSO4), and methionine. Their combinations were also tested: vitamin E + ubiquinone-10, vitamin E + POBA + methionine, and vitamin E + POBA + methionine + MgSO4. The growth biostimulator Stimpo was used for comparison. It was established that pre-sowing treatment with these metabolically active substances and their combinations contributed to the formation of a more robust photosynthetic apparatus in ginkgo seedlings. MgSO4 and the combination of vitamin E + methionine + POBA + MgSO4 had the most significant effect on stem height. Among single-component substances, ubiquinone-10 and the combination of vitamin E + methionine + POBA + MgSO4 most effectively increased the average number of leaves. All studied combinations of compounds positively impacted the average leaf area, increasing it by 44.5-58% compared to the control. Among single-component substances, vitamin E and MgSO4 were particularly effective in increasing leaf area. Ubiquinone-10 and the combination of vitamin E + methionine + POBA significantly enhanced the content of chlorophyll a and b pigments in the leaves. The use of metabolically active substances and their combinations during pre-sowing seed treatment is an effective measure to improve the assimilation processes and overall growth of Ginkgo biloba seedlings.

WRF-PDAF v1.0: implementation and application of an online localized ensemble data assimilation framework

Abstract. Data assimilation is a common technique employed to estimate the state and its associated uncertainties in numerical models. Ensemble-based methods are a prevalent choice, although they can be computationally expensive due to the required ensemble integrations. In this study, we enhance the capabilities of the Weather Research and Forecasting–Advanced Research WRF (WRF-ARW) model by coupling it with the Parallel Data Assimilation Framework (PDAF) in a fully online mode. Through minimal modifications to the WRF-ARW model code, we have developed an efficient data assimilation system. This system leverages parallelization and in-memory data transfers between the model and data assimilation processes, greatly reducing the need for file I/O and model restarts during assimilation. We detail the necessary program modifications in this study. One advantage of the resulting assimilation system is a clear separation of concerns between data assimilation method development and model application resulting from PDAF's model-agnostic structure. To evaluate the assimilation system, we conduct a twin experiment simulating an idealized tropical cyclone. Cycled data assimilation experiments focus on the impact of temperature profiles. The assimilation not only significantly enhances temperature field accuracy but also improves the initial U and V fields. The assimilation process introduces only minimal overhead in runtime when compared to the model without data assimilation and exhibits excellent parallel performance. Consequently, the online WRF-PDAF system emerges as an efficient framework for implementing high-resolution mesoscale forecasting and reanalysis.

Design and construction of chemical-biological module clusters for degradation and assimilation of poly(ethylene terephthalate) waste

The rising accumulation of poly(ethylene terephthalate) (PET) waste presents an urgent ecological challenge, necessitating an efficient and economical treatment technology. Here, we developed chemical-biological module clusters that perform chemical pretreatment, enzymatic degradation, and microbial assimilation for the large-scale treatment of PET waste. This module cluster included (i) a chemical pretreatment that involves incorporating polycaprolactone (PCL) at a weight ratio of 2% (PET:PCL = 98:2) into PET via mechanical blending, which effectively reduces the crystallinity and enhances degradation; (ii) enzymatic degradation using Thermobifida fusca cutinase variant (4Mz), that achieves complete degradation of pretreated PET at 300 g/L PET, with an enzymatic loading of 1 mg protein per gram of PET; and (iii) microbial assimilation, where Rhodococcus jostii RHA1 metabolizes the degradation products, assimilating each monomer at a rate above 90%. A comparative life cycle assessment demonstrated that the carbon emissions from our module clusters (0.25 kg CO2-eq/kg PET) are lower than those from other established approaches. This study pioneers a closed-loop system that seamlessly incorporates pretreatment, degradation, and assimilation processes, thus mitigating the environmental impacts of PET waste and propelling the development of a circular PET economy.

Potential decoupling of CO2 and Hg uptake process by global vegetation in the 21st century

Mercury (Hg), a potent neurotoxin posing risks to human health, is cycled through vegetation uptake, which is susceptible to climate change impacts. However, the extent and pattern of these impacts are largely unknown, obstructing predictions of Hg’s fate in terrestrial ecosystems. Here, we evaluate the effects of climate change on vegetation elemental Hg [Hg(0)] uptake using a state-of-the-art global terrestrial Hg model (CLM5-Hg) that incorporates plant physiology. In a business-as-usual scenario, the terrestrial Hg(0) sink is predicted to decrease by 1870 Mg yr−1 in 2100, that is ~60% lower than the present-day condition. We find a potential decoupling between the trends of CO2 assimilation and Hg(0) uptake process by vegetation in the 21st century, caused by the decreased stomatal conductance with increasing CO2. This implies a substantial influx of Hg into aquatic ecosystems, posing an elevated threat that warrants consideration during the evaluation of the effectiveness of the Minamata Convention.