应用生态学报最新文献

{"title":"Spatial pattern and influencing factors of epilithic bryophyte communities in rocky desertification areas of northern Guangdong, China.","authors":"Hui-Sen Zheng, Zi-Yi Chen, Jun-Lin Ye, Yong-Bin Wu","doi":"10.13287/j.1001-9332.202607.002","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.002","url":null,"abstract":"<p><p>Northern Guangdong is suffering from severe rocky desertification. As pioneer taxa on bare rock substrates, epilithic bryophytes play a crucial role in improving habitat quality and facilitating vegetation restoration. Taking the Baiwan Nature Reserve in Guangdong Province as the study area, we investigated 48 plots and employed cluster analysis alongside canonical correspondence analysis (CCA) to explore the characteristics of epilithic bryophyte communities and their relationships with environmental factors. The results showed that a total of 69 epilithic bryophyte species belonging to 38 genera and 23 families were recorded, with mosses exhibiting absolute dominance (64 species). The dominant families were Pottiaceae, Brachytheciaceae, and Bryaceae, while the life forms were dominated by wefts and turfs, accounting for 76.8% together. Cluster analysis classified the communities into seven types. The Patrick richness index peaked at the forest edge (7.36). Under the strong environmental filtering effect of extreme high-humidity, community structure tended to be simplified, facilitating the formation of a single-dominant community of <i>Hyophila involuta</i>. CCA and hierarchical partitioning collectively demonstrated that elevation and shrub canopy closure were the primary environmental factors affecting community distribution, with independent effects of 1.6% and 0.9%, respectively. The coupling of hydrothermal distribution along the altitude gradient and suitable canopy shading collectively constructs a \"microclimate refugium\" that supports the survival and diversification of bryophytes. In arid and barren exposed-rock environments, moss communities were dominated by drought-tolerant dominant taxa (e.g., Pottiaceae), coupled with a combination of weft and turf life forms, to achieve ecological adaptation across diverse microhabitats. For future ecological restoration practices, it is crucial to overcome the traditional single-afforestation mindset and prioritize a \"tree-shrub-moss\" three-dimensional synergistic restoration in rocky desertification areas. By rationally regulating community canopy closure to maintain a moist understory microhabitat, the stability and resilience of the overall vegetation community can be effectively enhanced.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2178-2186"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148833209","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":"Effects and mechanisms of exogenous acyl-homoserine lactones on nitrogen removal from aquaculture wastewater.","authors":"Hao-Jun Dong, Kai Zhang, Guang-Jun Wang, Zhe Pan","doi":"10.13287/j.1001-9332.202607.031","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.031","url":null,"abstract":"<p><p>To improve microbial nitrogen removal efficiency in aquaculture wastewater, we added different carbon-chain-length acyl-homoserine lactones (AHLs) to continuous-flow reactors, including N-butyryl-L-homoserine lactone (C4-HSL), N-hexanoyl-L-homoserine lactone (C6-HSL), N-octanoyl-L-homoserine lactone (C8-HSL), N-dodecanoyl-L-homoserine lactone (C12-HSL). We investigated their effects on nitrogen removal performance, sludge characteristics, and microbial community functions, and further analyzed the underlying mechanisms with metagenomics. The results showed that, compared with the nitrate concentration of (5.09±2.79) mg·L^-1 in the control effluent, all AHLs improved nitrate removal, reducing the effluent nitrate concentrations during stable ope-ration to (2.60±2.20), (1.87±1.31), (2.55±1.92), and (2.51±2.12) mg·L^-1, respectively. Among them, C6-HSL showed the best performance, which increased the nitrate removal rate by 8.0%, while maintained nitrite and total ammonia nitrogen at relatively low levels of (0.62±0.61) mg·L^-1 and (0.13±0.13) mg·L^-1, respectively. AHLs altered sludge surface morphology and extracellular polymeric substance composition, and promoted the enrichment of nitrogen-removing functional bacteria such as <i>Denitratisoma</i>, with the relative abundance of which being increased by 1.4%-3.4%. Metagenomic analysis indicated that AHLs differentially regulated functional genes related to quorum sensing, two-component systems, and nitrogen metabolism. Specifically, C4-HSL mainly enhanced genes associated with complete denitrification and biofilm formation. C6-HSL increased the expression of genes related to denitrification and dissimilatory nitrate reduction to ammonium. C8-HSL strengthened genes involved in phosphorus stress response and nitrogen fixation. C12-HSL promoted the expression of iron-acquisition-related functional genes. In conclusion, exogenous AHLs could enhance nitrogen removal by regulating microbial quorum sensing and metabolic processes, with C6-HSL showing the best perforemence.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2402-2414"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148832217","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":"Effects of soil erosion on soil quality of sloping farmland under different tillage methods in the typical thick-layer Mollisol region.","authors":"Jia-Ying Sheng, Fen-Li Zheng, Xue-Song Wang, Hong-Qiang Shi, Rui Liang, Lun Wang","doi":"10.13287/j.1001-9332.202607.041","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.041","url":null,"abstract":"<p><p>The effects of soil erosion on soil quality of sloping farmland in thick Mollisol region under different tillage methods remain unclear. Thus, three field plots with three tillage treatments of no ridge, longitudinal narrow-ridge and wide-ridge without crop planting were established across a 320-m natural slope, located at thick Mollisol region in Keshan County, Heilongjiang Province. Soil erosion rates were estimated by rare earth element (REE) tracing based on the point sampling placement method, soil erosion intensity and its spatial distribution were analyzed. A soil quality evaluation system was constructed using the minimum data set method, and the responding characteristics of soil quality to soil erosion intensity grades were analyzed on sloping farmland in thick Mollisol regions. The results showed that: 1) The average slope erosion rates of the no-ridge, longitudinal narrow-ridge, and longitudinal wide-ridge treatments were 1725.7, 2106.5, and 1898.4 t·km^-2·a^-1, respectively. Compared with the no-ridge treatment, the average slope erosion rates of longitudinal wide-ridge and narrow-ridge treatments increased by 10.0% and 22.1%, respectively. The slope section of 0-280 m was dominated by light and moderate erosion, whereas the slope section of 280-320 m was mainly dominated by soil deposition. 2) Clay content, soil organic carbon, total nitrogen, available phosphorus, and β-1,4-glucosidase were screened to construct the minimum data set for assessing soil quality. Among them, soil organic carbon and available phosphorus were the core factors affecting soil quality. The average soil quality index (SQI) values for the no-ridge, longitudinal narrow-ridge, and longitudinal wide-ridge treatments were 0.49, 0.51, and 0.50, respectively. 3) Under the three tillage methods, the SQI exhibited a significant negative correlation with soil erosion intensity grades. Soil erosion intensity directly affected SQI, and indirectly influenced SQI by altering soil physical and chemical properties. In conclusion, soil erosion was the core factor driving soil quality degradation of sloping farmland in the study area.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2206-2214"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148832549","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":"Impact of vineyard inter-row cover crops on soil organic carbon fractions.","authors":"Yi-Ze Jing, Jun-Ye Wang, Hai-Yan Zhang, Jian-Hong Cao, Yu-Qiang Li, Xue-Fei Wang, Zhu-Mei Xi","doi":"10.13287/j.1001-9332.202607.015","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.015","url":null,"abstract":"<p><p>The dynamics of soil organic carbon (SOC) fractions and accumulation under inter-row cover cropping serve as fundamental determinants of soil carbon pool stability and sustainable vineyard management. We conducted an experiment with three inter-row cover crop treatments, including <i>Vicia villosa</i> (MS), <i>Lolium perenne</i> (HM), and natural grass cover (ZR), in the vineyard from 2022 to 2024, and taking clean tillage (CK) as the control, to determine the soil organic carbon fractions, physicochemical properties, enzyme activities, and the relationships between soil properties and organic carbon fractions in the 0-40 cm soil layers. The results showed that three cover crop treatments significantly increased the contents of available phosphorus, available potassium, and total organic carbon in the 0-20 cm soil layer, with increases of 55.6%, 20.5%, and 5.4%, respectively. Different treatments significantly affected soil properties in the 20-40 cm soil layer, with the MS treatment increasing ammonium content by 40.6%, the HM treatment increasing total phosphorus content by 9.5%, and the ZR treatment increasing total organic carbon content by 7.1%. In the 0-40 cm soil layer, all cover crop treatments increased the contents of soil microbial biomass carbon and dissolved organic carbon by 13.5%-57.6% and 30.9%-74.4%, respectively. In the 0-20 cm soil layer, the MS and HM treatments increased total soil enzyme activity (TEA) by 36.6% and 45.1%, respectively. The MS and HM treatments enhanced soil carbon pool management index (CPMI), while the ZR treatment diminished soil CPMI. In the 20-40 cm soil layer, the HM and ZR treatments significantly increased TEA and diminished soil CPMI, while the MS treatment enhanced soil CPMI. Correlation and redundancy analysis revealed that nitrate, available potassium, leucine aminopeptidase, and β-xylosidase were the key factors influencing the SOC fractions in the 0-20 cm soil layer. Total phosphorus and β-xylosidase were the key factors influencing the SOC fractions in the 20-40 cm soil layer. In conclusion, three consecutive years of inter-row artificial cover cropping significantly enhanced soil nutrients, promoted soil organic carbon accumulation and resulted in higher enzyme activities and active organic carbon content in the 0-20 cm soil layer of vineyards. Among the tested cover crops, <i>V. villosa</i> performed the best in optimizing the structure of soil carbon pool, making it a candidate species for enhancing carbon sequestration and efficiency in vineyards inter-row management.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2146-2156"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148832700","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":"Seasonal variations of carbon fluxes and the drivers in typical Chinese forest ecosystems.","authors":"Ke-Ming Hu, Zhi Ding, Xing-Chang Wang, Tian Gao, Chuan-Kuan Wang","doi":"10.13287/j.1001-9332.202607.007","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.007","url":null,"abstract":"<p><p>We integrated monthly eddy-covariance carbon flux data from 27 forest flux towers across China, compiled from ChinaFLUX during 2003 to 2023, literature, and our own observations. The study sites covered four forest biomes, namely boreal, temperate, subtropical, and tropical forests. Based on long-term mean monthly series, we quantified seasonal metrics of gross primary productivity (GPP), ecosystem respiration (Re), and net ecosystem productivity (NEP), including seasonal amplitude, seasonality index, and seasonal standard deviation, as well as flux magnitude metrics, including maximum monthly flux and growing-season mean monthly flux. Generalized additive models were used to identify the main explanatory variables of spatial variations in these metrics to examine the seasonal variation and spatial differentiation of forest carbon fluxes across different climatic zones in China. The results showed that the long-term mean monthly fluxes of GPP, Re, and NEP across the four forest biomes ranged from 0 to 298.3, 11.8 to 227.1, and -27.5 to 106.8 g C·m^-2·month^-1, respectively. GPP and Re exhibited unimodal seasonal patterns, with peaks mainly occurring from June to August. NEP showed a \"carbon source-carbon sink-carbon source\" transition pattern in boreal and temperate forests, whereas subtropical and tropical forests were mostly carbon sinks throughout the year. The seasonality of GPP and Re increased significantly with latitude, and the seasonality indices of which were significantly and positively correlated with latitude (<i>R</i>² values were 0.74 and 0.56, respectively). Generalized additive model analyses showed that the seasonal metrics of forest carbon fluxes were mainly associated with climatic factors. Annual temperature range contributed 52.3%-68.7% to the GPP seasonal metrics. The flux magnitude metrics of forest carbon fluxes were mainly associated with stand structural factors. Canopy height contributed 74.3% and 70.4% to the maximum monthly fluxes of GPP and NEP, respectively, and contributed 28.6%-57.7% to the growing-season mean monthly fluxes of carbon flux components. Across the typical forest sites compiled in this study, the spatial differentiation of carbon fluxes was expressed mainly in the strength of seasonality rather than in flux magnitude, providing a scientific basis for forest carbon balance assessment and seasonal parameterization of ecosystem models.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2103-2115"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148833216","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":"Coupling zoning and multi-scenario simulation of landscape ecological risk and ecosystem services in the Sanjiang Plain, Northeast China.","authors":"Jia-Ming Zhagn, Ze-Dong Liu","doi":"10.13287/j.1001-9332.202607.023","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.023","url":null,"abstract":"<p><p>Long-term high-intensity agricultural development in the Sanjiang Plain has led to land use change, triggering prominent issues such as landscape fragmentation and degradation of ecosystem services. To explore the ecological evolution laws and regulation pathways under human activity disturbance, based on multi-source data on land use from 2010 to 2020, we comprehensively utilized the PLUS model, InVEST model, and a dual-dimensional ecological risk framework of \"structure+conversion\" to quantitatively assess and simulate landscape ecological risk and ecosystem service evolution under multiple scenarios (natural development, urban development, farmland protection, and ecological protection) by 2030, and delineated the coupled management and control zones. The results showed that from 2010 to 2020, land use change was primarily characterized by the bidirectional transfer farmland and ecological land, with landscape ecological risks continuously rising, and overall declines in ecosystem service supply such as habitat quality and carbon storage. By 2030, the area of high-risk zone under the natural development scenario surged by 13.7% compared to 2020, while the ecological protection scenario effectively curbed ecological degradation, achieving an optimal balance between ecological risk prevention and control and ecosystem service maintenance. The ecological risk-ecosystem service coupled zones exhibited significant spatial heterogeneity, with \"low risk-low supply\" concentrated in the northern part of the study area, and a spatial conflict pattern of \"high risk-high supply\" concentrated in the central-eastern and southern forest edges. This study would provide scientific supports for ecological early warning and territorial spatial zoning and management in black soil regions.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2305-2316"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148833160","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":"Decomposition mechanisms of <i>Pinus koraiensis</i> logs in a mixed broad leaved-Korean pine forest.","authors":"Yu-Xin Fan, Di Wu, Hai-Yu Chi, Guang-Ze Jin","doi":"10.13287/j.1001-9332.202607.006","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.006","url":null,"abstract":"&lt;p&gt;&lt;p&gt;We analyzed the dynamic changes of the decomposition of fallen logs of &lt;i&gt;Pinus koraiensis&lt;/i&gt; with different decay classes (ⅰ-ⅴ) and diameter classes (Ⅰ-Ⅲ) following the space-for-time substitution method. We further elucidated the decomposition mechanism by examining the interrelationships of chemical components, microbial communities, and related degradation enzyme activities during the decomposition process. The results showed that lignocellulose contents and the activities of related degrading enzymes were significantly varied across decay class and diameter class. The contents of lignin, cellulose, and hemicellulose generally showed a decreasing trend with increasing decay class. Compared with decay class ⅰ, lignin, cellulose, and hemicellulose contents in decay class ⅴ decreased by 17.2%-24.2%, 44.7%-64.7%, and 12.4%-45.2%, respectively, with cellulose showing the greatest decrease. Lignin content generally increased with increasing diameter class, whereas the diameter-related changes in cellulose and hemicellulose contents exhibited different patterns across decay classes. The activities of lignocellulose-degrading enzymes generally increased with increasing decay class. Compared with decay class ⅰ, the activities of cellulase, laccase, and β-glucosidase in decay class ⅴ increased by 160.1%-184.2%, 121.2%-337.9%, and 22.9%-185.1%, respectively. The variation patterns of degradation enzyme activities across diameter classes differed among decay classes and degradation enzyme types. Four functional modules were identified for bacteria and for fungi, respectively. Bacterial network Module 2 was identified as the key functional module for lignocellulose degradation, with Proteobacteria, Actinobacteria, Cyanobacteria, and Acidobacteria as the dominant phyla. The relative abundances of these phyla showed significant positive correlations with the activities of laccase, β-glucosidase, cellulase, and acidic xylanase. Modules 3 and 4 also showed significant positive correlations with some degradation enzyme activities. Module 1 showed no significant correlation with each degradation enzyme activity, indicating that multiple bacterial network modules synergistically participated in the decomposition of lignocellulose in fallen logs. All fungal network modules were dominated by Ascomycota and Basidiomycota, but none of them showed significant correlations with degrading enzyme activities. Bacterial community structure was significantly correlated with β-glucosidase, cellulase, and laccase activities, whereas fungal community structure was significantly correlated with β-glucosidase activity, nitrate content, ammonium content, and carbon-to-nitrogen ratio. Laccase, lignin peroxidase, β-glucosidase, and ammonium content were significantly correlated with changes in lignocellulose contents. In summary, key bacterial network modules played an important role in lignocellulose degradation, and the bacterial community drove the production of multifun","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2127-2136"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148833190","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":"Effects of different amendment treatments on survival rate and soil microbial community of continuous cropping <i>Atractylodes macrocephala</i>.","authors":"Hui-Juan Duan, Xian-Yong Lin, Qi Xu, Pan Wang, Hong-Hai Zhu, Hui Wang, Yue Yin, Gui-Lan Duan","doi":"10.13287/j.1001-9332.202607.012","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.012","url":null,"abstract":"<p><p>Prolonged continuous cropping of <i>Atractylodes macrocephala</i> usually cause soil-borne diseases such as root rot, resulting in significant yield losses even total crop failure. Burning, fumigation, and microbial inoculant application are commonly used to suppress soil-borne diseases in agricultural systems. However, their effects on plant performance and soil microbial communities in continuously cropped <i>A. macrocephala</i> systems remain poorly understood. We conducted a field experiment with high-throughput amplicon sequencing to examine the effects of burning, soil fumigation, microbial inoculant application, and their combined treatment (burning + fumigation + microbial inoculant application) on the survival rate, yield, and soil microbial communities of continuously cropped <i>A. macrocephala</i>, as well as to identify the key microbial taxa influencing <i>A.</i> <i>macrocephala</i> survival. The results showed that all soil amendment treatments increased <i>A. macrocephala</i> survival rate and yield. Soil fumigation treatment had the strongest effect on plant survival, with a survival rate of 66.9% and a yield of 2533.46 kg·hm^-2, representing 89.5% and 157.8% increases, respectively. The combined treatment of soil burning, fumigation, and microbial inoculant application resulted in a survival rate of 61.1% and a yield of 2749.52 kg·hm^-2, correspon-ding to 73.1% and 179.8% increases, respectively, and showed the largest yield gain among all treatments. Soil fungal community composition differed significantly among treatments, whereas bacterial community structure exhi-bited comparatively limited variation. Soil fungal communities in the control were dominated by Basidiomycota, whereas Ascomycota predominated in soils subjected to burning, fumigation, microbial inoculant application and the combined treatment. The combined treatment harbored the most connected fungal network, with 14204 edges, and exhibited a smaller decline in network stability following the removal of keystone nodes, indicating enhanced network complexity and robustness. Random forest analysis identified <i>Leptosphaerulina</i>, <i>Saitozyma</i>, <i>Paraboeremia</i>, and <i>Fusarium</i> as the key fungal genera associated with <i>A. macrocephala</i> survival, with their relative abundances being significantly reduced under fumigation and the combined treatments. The survival rate of <i>A. macrocephala</i> was negatively correlated with the relative abundances of <i>Saitozyma</i> (<i>R²</i>=0.32). Together, these findings indicate that soil fumigation and the combined application of soil burning, fumigation, and microbial inoculants can improve the ecological function of continuously cropped soils by restructuring soil microbial communities, enhancing fungal network stability and suppressing putative fungal pathogens, thereby increasing the survival rate and yield of <i>A. macrocephala</i>.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2364-2372"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148832529","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 extracellular enzymes to global changes: A review.","authors":"Yang Yang, Bao-Rong Wang, Ji Chen, Lin-Chuan Fang, Yun-Qiang Wang, Shao-Shan An","doi":"10.13287/j.1001-9332.202607.020","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.020","url":null,"abstract":"<p><p>Soil extracellular enzymes (EES) regulate the formation of substrates available to soil microbes and nutrient release by catalyzing the degradation of complex macromolecules in organic matter. Therefore, EES are the key catalysts in the microbial-mediated biogeochemical cycling, playing an important role in regulating ecosystem functions. We reviewed the research advances in the formation, sources, classification, and functions of EES, ela-borated on their responses and feedback mechanisms to global changes (including climate change and human activities). Soil extracellular enzymes exhibit nonlinear responses to multiple climate factors, such as temperature rise, drought, nitrogen deposition, changes in precipitation, and increased CO₂ concentration. This nonlinearity is not the result of the superposition of a single factor, but mainly stems from the interaction between climate and environmental factors. By altering the nutrient limitation status, life history strategy, and community structure of soil microorganisms, it triggers changes in enzyme activities and ecological stoichiometry. The final response depends on the intensity, duration, and environmental background of each factor. Future research should shift from single enzyme activity measurement to coupled analysis of enzyme kinetics, microbial resource allocation, and ecosystem processes. By combining long-term field experiments, isotope tracing, and multiomics techniques, further works would enhance our understanding of the multifactor interaction mechanisms under global change. Key enzyme functional parameters should be incorporated into the ecosystem model to accurately predict soil carbon dynamics and ecosystem functions under climate change.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2441-2452"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148832974","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":"Differentiation mechanism and multivariate spatial-temporal matching characteristic of three-dimensional ecological footprint within the Beijing-Tianjin-Hebei urban agglomeration.","authors":"Jing Li, Yu-Jin Fu, Xuan-Xuan Zhang, Min-Hui Si, Yi-Zhong Chen, Yu Zhang","doi":"10.13287/j.1001-9332.202607.026","DOIUrl":"https://doi.org/10.13287/j.1001-9332.202607.026","url":null,"abstract":"<p><p>Revealing the spatial differentiation cause and spatiotemporal matching characteristic of ecological loads in the Beijing-Tianjin-Hebei urban agglomeration (BTHUA) holds significant strategic importance for regional sustainable development. We explored natural capital utilization of the BTHUA by using the three-dimensional ecological footprint model. Based on the spatial-temporal geographically weighted regression model and the barycenter theory, we identified the causes for the spatial differentiation of the three-dimensional ecological footprint and its spatial-temporal matching characteristic with energy utilization and economic development. Results showed that the regional per capita three-dimensional ecological footprint showed an overall fluctuating downward trend and remained in a long-term ecological deficit state (exceeding the carrying capacity by 5.2 times). Footprint size fluctuated steadily from 0.21 to 0.22 hm²·cap^-1. Cultivated land was the main source of the differentiation in per capita three-dimensional ecological footprint and footprint size. Footprint depth showed a fluctuating downward trend between 8.26 and 11.46, with grassland being the main contributor. The effect of socio-economic indicators on the three-dimensional ecological footprint shifted from strong positive effect (0.27) to strong negative effect (-0.20). The ecological construction indicator exhibited a continuous weak negative impact, while energy consumption remained an important driver of ecological footprint growth in the later stage, with its impact shifting from negative to positive after 2010. The results of multivariate spatiotemporal matching indicated that footprint depth, total energy consumption, and per capita GDP exhibited strong coordination at the spatiotemporal scale (mean value 0.73), being significantly higher than single temporal (mean value 0.55) and spatial matching degrees (mean value 0.67), demonstrating a high level of coordination between natural capital utilization, energy use, and economic development in the region at the spatiotemporal scale.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":"37 7","pages":"2317-2328"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148833178","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}