应用生态学报最新文献

{"title":"Spatial correlation network characteristics and influencing factors of urban ecological vulnerability in the Yellow River Basin, China.","authors":"Yu-Xi Jin, Hui-Jie Xiao, Zhou Wang, Si-Bei Chen, Cheng-Wei Luo","doi":"10.13287/j.1001-9332.202608.001","DOIUrl":"10.13287/j.1001-9332.202608.001","url":null,"abstract":"<p><p>Against the backdrop of arid and semi-arid climates, plantation degradation in the Three-North region of China has emerged as a critical constraint on regional ecosystem stability and the sustained provision of ecosystem services. We synthesized the major manifestations and plantation degradation in the Three-North region. Plantation degradation is commonly characterized by tree physiological dysfunction, accompanied by growth decline at indivi-dual and stand scales, stand structural instability, and a decline in ecosystem functions. From an integrated ecological and tree physiological perspective, we highlighted how key ecological drivers, including water stress, nutrient limitation, and tree species-site mismatch under drought stress, could induce hydraulic failure, carbon starvation, and imbalance in water-carbon coupling, thereby driving the transition of plantations from physiological decline to structural and functional degradation. Moreover, we emphasized that tree species with different water-use strategies exhibited distinct degradation pathways and risk profiles under drought stress, which were jointly regulated by hydraulic safety margins and carbon balance constraints. Despite growing attention, substantial gaps remained in identifying dominant driving factors, quantifying key physiological thresholds, and elucidating cross-scale coupling processes. Future studies should integrate multi-scale indicators, such as water use efficiency, to develop species- and region-specific diagnostic and early-warning frameworks for plantation degradation.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2813-2821"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response of soil fungal community to pruning intensity in <i>Rubus corchorifolius</i> rhizosphere.","authors":"Dong-Mei Chen, Ya-Ru Lyu, Xi-Rong Gu, Jie Li, Yao Cui, Yang-Xiao Deng","doi":"10.13287/j.1001-9332.202608.013","DOIUrl":"10.13287/j.1001-9332.202608.013","url":null,"abstract":"<p><p>Elucidating the response of rhizosphere fungal communities to pruning intensity in <i>Rubus corchorifolius</i> is critical for refining branch-thinning practices and optimizing rhizosphere soil management. Taking 2-year-old branches of <i>R. corchorifolius</i> as research materials, we set three pruning intensities: no basal pruning (control), removal of 1/5 of primary lateral branches (light thinning), and removal of 1/3 of primary lateral branches (heavy thinning). We conducted pruning 15 days before the flowering period and collected rhizosphere soil at early flowering stage, early fruiting stage, and fruit ripening stage to analyze the changes in soil nutrient content and fungal community structure and function. The results showed that at early flowering and early fruiting, light thinning increased soil organic matter, organic carbon, total nitrogen, available nitrogen, and available potassium by 4.5%-44.1%, whereas heavy thinning decreased organic matter, organic carbon, total nitrogen, and available nitrogen by 2.5%-18.2%. At fruit ripening stage, all thinning treatments significantly elevated total phosphorus, organic matter, organic carbon, available nitrogen, available phosphorus, C/N, and C/P, with increases ranging from 9.2% to 136.8%. Thinning reduced fungal community diversity at early flowering and early fruiting, but increased richness at fruit ripening. Light thinning enriched <i>Russula</i> at early flowering and <i>Mortierella</i> and <i>Archaeorhizomyces</i> at early fruiting, while heavy thinning enriched <i>Isaria</i> at early flowering and <i>Hydnum</i> at fruit ripening. Redundancy analysis indicated that community composition under both thinning treatments was positively modulated by available potassium at early flowering and early fruiting stage, and by available nitrogen (light thinning) and available phosphorus (heavy thinning) at the ripening stage. Pruring increased the proportion of soil saprotrophs at fruit ripening stage and the mycorrhizal fungal fraction during early flowering and early fruiting stage. Overall, light thinning performed half a month before flowering could favor soil nutrient accumulation, improve fungal community structure, and increase the relative abundances of saprotrophs and mycorrhizal fungi, collectively exerting positive effects on soil nutrient cycling and growth of <i>R. corchorifolius</i>.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2618-2626"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adaptive characteristics of leaf phenotypic plasticity and integration in <i>Calamagrostis angustifolia</i> under long-term nitrogen addition.","authors":"Ming-Yi Chen, Zhao-Dong Cui, Jian-Yu Wang, Wen-Yu Wu, Yu-Tong Ma, Jia-Wen Liang, Hong-Wei Ni, Hai-Xiu Zhong","doi":"10.13287/j.1001-9332.202608.003","DOIUrl":"10.13287/j.1001-9332.202608.003","url":null,"abstract":"<p><p>Based on a long-term nitrogen (N) addition experiment in the Sanjiang Plain wetland, we measured leaf photosynthetic physiology, morphological structure, and ecological stoichiometric characteristics of the dominant species <i>Calamagrostis angustifolia</i> among three treatments: control (0 g N·m^-2·a^-1), low N (4 g N·m^-2·a^-1), and high N (8 g N·m^-2·a^-1). We elucidated the response patterns and adaptive strategies of its functional traits after 14 years chronic N inputs. The results showed that 14 leaf functional traits responded differently to long-term N addition. Under the low N treatment, leaf nitrogen content, specific leaf area (SLA), and net photosynthetic rate increased significantly by 199.9%, 45.7%, and 27.1%, respectively, indicating an efficient acquisitive strategy of \"high-investment and high-return\". Under the high N treatment, leaf nitrogen content and SLA significantly increased relative to the control, whereas the net photosynthetic rate decreased significantly compared to the low N treatment, and photosynthetic nitrogen-use efficiency (PNUE) dropped by 76.8% compared with the control, indicating an inefficient acquisitive strategy of \"investment-return imbalance\". These changes in leaf functional traits indicated that long-term N addition drove a shift in resource-use strategy of <i>C. angustifolia</i> from conservative to acquisitive. There was no difference in overall phenotypic plasticity between the low and high N treatments, but the response magnitudes of the 14 functional traits varied. Leaf nitrogen content and leaf N:P exhibited the strongest plasticity. The plasticity of net photosynthetic rate, stomatal conductance, transpiration rate, PNUE, and water use efficiency (WUE) was higher under the low N treatment. Phenotypic integration under high N treatment was significantly higher than under the low N treatment, with tighter correlations among leaf functional traits. Phenotypic plasticity and phenotypic integration showed no correlation, suggesting that they acted as relatively independent dimensions, playing roles in optimizing resource utilization and coping with environmental stress, respectively.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2595-2604"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tree health status and its influencing factors in street green space of Xiong'an New Area, China.","authors":"Shun-Yi Shu, Tian-Hui Zhang, Rui Ren, Shu-Xin Fan, Li Dong","doi":"10.13287/j.1001-9332.202608.002","DOIUrl":"10.13287/j.1001-9332.202608.002","url":null,"abstract":"<p><p>We developed a health assessment system for arboreal species in street green spaces of Xiong'an New Area, which comprised 12 indicators with four dimensions: whole-tree, crown, foliage, and trunk, with health grades classified into levels Ⅰ-Ⅴ (corresponding to healthy, sub-healthy, moderate healthy, unhealthy, and mori-bund, respectively). We surveyed 24 roads with 1040 trees, belonging to 32 species, 17 genera, and 11 families. Healthy and sub-healthy individuals together accounted for 63.8%, while unhealthy and moribund trees accounted for 11.0% and 4.0%, respectively. The three tree species with the highest application frequency were <i>Styphnolo-bium japonicum</i>, <i>Fraxinus chinensis</i>, and <i>Ginkgo biloba</i>. There were significant differences in health status among the 14 tree species with application frequency >5%. <i>Pinus bungeana</i> exhibited the highest health grade, while <i>Acer</i> ×<i>freemanii</i>, <i>G. biloba</i>, <i>Prunus</i> ×<i>yedoensis</i> 'Somei-yoshino', and <i>Prunus cerasifera</i> 'Atropurpurea' showed relatively lower health grades. Nine factors were significantly correlated with tree health in the street green spaces of Xiong'an New Area, including crown width, tree height, species origin, adjacent land use type, planting scenario, tree pit type, underlying surface composition, planting time, and pruning intensity. Furthermore, there were significant interactive effects with tree species for crown width and pruning intensity. Arboreal trees in the street green spaces of Xiong'an New Area faced certain health risks. Prioritizing stress-resistant native species, improving site conditions according to species-specific requirements, standardizing planting and construction practices, and implementing precise maintenance management were key measures to enhance tree health.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2565-2577"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148813918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response of interspecific relationships in <i>Artemisia scoparia</i> community to precipitation gradient in tempe-rate steppe region.","authors":"Tian-Tian Li, Lin Chen, Ke-Er Lou, Xiao-Li Wu, Fu-Fu Wang, Jing Ma, Dan-Bo Pang","doi":"10.13287/j.1001-9332.202608.008","DOIUrl":"10.13287/j.1001-9332.202608.008","url":null,"abstract":"<p><p>We investigated <i>Artemisia scoparia</i> community across a natural precipitation gradient in the temperate steppe region, including desert (mean annual precipitation was 220.18 mm), desert steppe (287.71 mm), and typical steppe (399.11 mm) habitats, and analyzed interspecific relationships and community stability. The results showed that a total of 15 herbaceous species were recorded across three types of habitats, dominated by species from Poaceae and Asteraceae. <i>A. scoparia</i> had relatively high importance values at all sites, indicating its dominance in the plant communities. However, its importance value in the typical steppe (6.5) was lower than that in areas with less precipitation, being 13.9 in the desert and 21.0 in the desert steppe. The niche overlap among most plant species in the community was low, with the proportion of niche overlap indices (<i>O_ik</i>) <0.5 being 86.7%, 89.3%, and 97.8% in desert, desert steppe, and typical steppe, respectively, indicating significant differentiation of resource utilization among species. The niche breadth of <i>A. scoparia</i> in desert steppe (Levins's niche breadth index of 7.70 and Shannon's niche breadth index of 2.22) was higher than that in desert and typical steppe. Plant species in the study area were mainly negatively associated, and the community structure was relatively loose. <i>A. scoparia</i> communities in desert, desert steppe, and typical steppe did not reach a stable state and were in a non-stable dynamic succession stage, with the <i>A. scoparia</i> community in desert steppe exhibiting relatively higher stability.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2585-2594"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial-temporal variations of externality value of rice production environment in the Yangtze River Economic Belt.","authors":"Guang-Hui Yu, Yong-Xiong Liu, Wen-Jia Li, Xing-Yi Zhang, Fu-Quan Mao","doi":"10.13287/j.1001-9332.202608.023","DOIUrl":"10.13287/j.1001-9332.202608.023","url":null,"abstract":"<p><p>Evaluating the external value of rice production environment in the Yangtze River Economic Belt can make up for the lack of attention to the pre-production link of rice in literature, and thus provide a basis for promoting agricultural green production. Based on the panel data of rice production in the Yangtze River Economic Belt from 2000 to 2024, we used the functional value method and the equivalent factor method to calculate the 20 environmental externalities across 11 provinces and cities in the Yangtze River Economic Belt, and analyzed the spatial and temporal variations. The results showed that the annual environmental positive, negative externality and net value of rice production from 2000 to 2024 in the Yangtze River Economic Belt were 344.476 billion, 284.605 billion, and 59.871 billion yuan, respectively. The positive externality value was mainly composed of water conservation (50.1%) and gas regulation (21.7%). The negative externality value was mainly composed of water consumption (27.8%), fertilizer pollution (27.2%), and greenhouse gas emissions (22.2%). During the study period, the overall value of positive externality showed a downward trend, and the value of negative externality showed a trend of increasing first and then decreasing with 2012 as the demarcation point. The average annual net external value of rice production environment in the lower, middle, and upper reaches of the Yangtze River Economic Belt was 7.892 billion, 46.679 billion, and 6.099 billion yuan, respectively. The net external value of rice production in Jiangxi and Hunan was the highest, which together contributed more than 2/3 of the whole study area. The net external value of Yunnan was the lowest. Our results could provide scientific basis for the optimal layout and green transformation of rice production in the Yangtze River Economic Belt.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2655-2664"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial correlation network characteristics and influencing factors of urban ecological vulnerability in the Yellow River Basin, China.","authors":"Wei-Xin Zhu, Lei Zhang, Jie-Yu Wang, Yao-Dong Li, Jun-Jie Niu","doi":"10.13287/j.1001-9332.202608.024","DOIUrl":"10.13287/j.1001-9332.202608.024","url":null,"abstract":"<p><p>Spatiotemporal dynamics of atmospheric CO₂ concentrations are crucial to understanding global carbon cycle and predicting regional climate change. Given that China spans multiple climatic zones and features complex and diverse ecosystems, elucidating the patterns of CO₂ differentiation across climatic zones are essential for formulating refined and differentiated reduction strategies. Here, we investigated the spatiotemporal variations of atmospheric CO₂ concentrations in China by using the satellite-retrieved XCO₂ datasets from 2003 to 2023 and the Köppen-Geiger climate classification. The results showed that the average of CO₂ concentrations ranked as: tempe-rate zone>tropical zone>cold zone≈arid zone>polar zone, while its growth rate ranked as: tropical zone>temperate zone>polar zone>cold zone≈arid zone. CO₂ concentrations had increased synchronously across climatic zones, yet the interregional CO₂ concentration differences had further widened, revealing an intensifying trend of spatial differentiation. Nearly half of the regions exhibited significant spatial clustering of atmospheric CO₂ concentration. The high-high clusters were primarily concentrated in the temperate zone, which was densely populated and economically developed. The low-low clusters were mainly distributed in the cold and polar zones, where ecological conservation was relatively robust. The spatial clustering was weakest in 2006 (Moran's <i>I</i>=0.68, <i>Z</i>=70.00) and peaked in 2017 (Moran's <i>I</i>=0.88, <i>Z</i>=90.33). While downward shortwave radiation was negatively correlated with CO₂ concentration (<i>r</i>=-0.542), population density (<i>r</i>=0.992), carbon emissions (<i>r</i>=0.970), leaf area index (<i>r</i>=0.845), temperature (<i>r</i>=0.565), and precipitation (<i>r</i>=0.481) all exhibited significant positive correlations with CO₂ concentration. Soil water content (<i>r</i>=0.072) showed a non-significant positive correlation with CO₂ concentration. According to the optimal parameters-based geographical detector, population density exerted the strongest influence on the spatial pattern of CO₂ concentration (<i>q</i>=0.55), followed by temperature (<i>q</i>=0.43). The interaction types between factors were predominantly characterized by bi-linear or nonlinear enhancement.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2753-2764"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial correlation network characteristics and influencing factors of urban ecological vulnerability in the Yellow River Basin, China.","authors":"Hao Wu, Qian-Wen Yang, Chuan-Chuan Feng, Qing-Cao Zeng, Ben-Qiang Rao","doi":"10.13287/j.1001-9332.202608.005","DOIUrl":"10.13287/j.1001-9332.202608.005","url":null,"abstract":"<p><p>Plant invasion poses a serious threat to biodiversity and ecosystem functions, while habitat heterogeneity significantly affects the invasion trend along latitudinal gradients. We reviewed the research progress on plant invasion and its biological interaction patterns along latitudes over the past decade. The phenotypic plasticity and ecolo-gical adaptability of many invasive plants increase with increasing latitude, thereby exacerbating the homogenization of native plant communities in high-latitude regions. The occurrence of natural enemy insects, insect feeding rates, soil pathogenic fungal infection rates, and feedback effects with soil biota of invasive/native plants exhibit asymme-tric patterns along latitudinal gradients. Climate warming has altered the multi-trophic interactions in invaded habitats, intensifying the \"natural enemy release effect\" of invasive plants and the \"non-target effect\" of invasion control in high-latitude regions. Future research should focus on exploring the redistribution of different functional secondary metabolites within invasive plants along latitudinal gradients; elucidating the latitudinal patterns and synergistic effects of \"aboveground-belowground\" interactions in invaded ecosystems based on multi-factor and multi-trophic interaction networks; investigating the functional trait evolution of invasive plants across latitudes and the phylogenetic relationships of co-existing plants in invaded areas; and comprehensively utilizing emerging technologies to reveal the molecular basis, co-evolution mechanisms, and latitudinal differentiation patterns of biological interactions in invasive plants. This study would deepen the understanding of plant invasion mechanisms and the prevention and control of biological invasions under global change.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2833-2844"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial correlation network characteristics and influencing factors of urban ecological vulnerability in the Yellow River Basin, China.","authors":"Hua Chen, Long-Qing Shi, Yi Lin, Jing Ye, Yi-Xiang Wang, Peng-Hu Liu, Bo-Qi Weng","doi":"10.13287/j.1001-9332.202608.012","DOIUrl":"10.13287/j.1001-9332.202608.012","url":null,"abstract":"<p><p>Small watersheds are the fundamental units for ecological governance and agricultural development in mountainous regions, possessing an intact ecosystem structure and independent eco-economic functions. Integrating circular agriculture with soil and water erosion control at the small watershed scale can realize the coordinated advancement of ecological and economic benefits. Constrained by complex terrain and fragile ecological conditions, the circular agricultural systems in small watersheds of southern China mountainous areas are plagued by multiple bottlenecks, including incomplete planting-breeding circulation chains, insufficient quantitative evaluation of ecological effects, poor adaptability of core technologies, insufficient coordination of policies and mechanisms, and a shortage of interdisciplinary research. These constraints hinder the systematic integration and large-scale popularization of such systems. Based on circular economy theories and sustainable development goals, we analyzed the deve-lopment status of circular agricultural systems in small watersheds of southern China mountainous areas, covering four major dimensions: the integration of comprehensive soil and water erosion control with ecological agriculture, the combination of planting-breeding production and agricultural waste resource utilization, the construction of agroforestry compound systems, and the integrated development of characteristic industries and eco-tourism. We further analyzed the prevailing challenges, such as fragile eco-environments, imperfect technical and model standards, restrictions from capital investment and market mechanisms, as well as insufficient administrative coordination and professional talents. We then proposed corresponding optimization countermeasures from four dimensions: technological innovation, ecological conservation and restoration, industrial integration, and policy support plus organizational model innovation. This would provide a theoretical basis and practical references for constructing circular agricultural systems tailored to the characteristics of southern China mountainous areas and achieving harmonious development between agricultural exploitation and ecological protection.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 8","pages":"2845-2850"},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanism of ion homeostasis mediated by arbuscular mycorrhizal fungi in plant responses to saline-alkaline stress.","authors":"Yi-Nuo Pan, Ying-Xin Han, Ke-Xin Dong, Shuo Liu, Hao-Ran Guo, Lin Li, Han-Mo Cheng, Jing-Hong Wang","doi":"10.13287/j.1001-9332.202607.005","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.005","url":null,"abstract":"<p><p>Against the backdrop of global climate change, soil salinization and alkalization have emerged as major environmental constraints on sustainable agricultural development. Salt-alkali stress primarily disrupts cellular ion homeostasis, resulting in excessive accumulation of ions such as Na⁺ and Cl^- and deficiencies of essential nutrient ions including K⁺ and Ca²⁺, with negative consequence on plant growth and development. Arbuscular mycorrhizal fungi (AMF), a widespread group of beneficial soil microorganisms, could establish symbiotic associations with most terrestrial plants and enhance the tolerance of host plants to salt-alkali stress through sophisticated mechanisms of ion regulation. Although increasing attention has been paid on AMF-mediated ion regulation in recent years, a systematic integration of the underlying mechanisms from the microscopic to the macroscopic level remains lacking. We summarized the key mechanisms by which AMF regulate ion uptake, transport, and metabolism of plants under salt-alkali stress, including selective ion absorption and enhanced nutrient acquisition by extraradical structures, nutrient exchange and ion compartmentalization mediated by intraradical structures, improvement of the rhizosphere environment by AMF-derived substances, and the regulation of Na⁺ efflux and translocation, Na⁺ and Cl^- sequestration, as well as K⁺ and Ca²⁺ uptake and allocation. Collectively, these mechanisms elucidate how AMF alleviates ion toxicity and nutrient imbalance under salt-alkali stress, and provide a theoretical basis for the application of AMF in enhancing crop salt-alkali tolerance from the perspective of ion homeostasis.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2453-2462"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148832773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}