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{"title":"Effects of different land-use types on soil detachment capacity in loess areas","authors":"Jingxin Yan ,&nbsp;Kuandi Zhang ,&nbsp;Junying Chen ,&nbsp;Yuxin Wang ,&nbsp;Lijuan Liu ,&nbsp;Juanjuan Liu","doi":"10.1016/j.catena.2024.108523","DOIUrl":"10.1016/j.catena.2024.108523","url":null,"abstract":"<div><div>Against the background of similar geomorphological characteristics and environmental temperatures, land-use types alter the soil detachment capacity (<em>D</em>_c) by changing soil properties and root traits. However, there is a lack of in-depth discussion regarding the response of <em>D</em>_c to land-use types in loess areas. The purpose of this study was to quantify the influences of different land-use types in loess areas on <em>D</em>_c, soil erodibility (<em>k</em>_r), and critical shear stress (<em>τ</em>_c) and explore the key factors affecting <em>D</em>_c under runoff erosion based on the links between root traits and soil properties, and combined with PLS-SEM algorithm, a <em>meta</em>-model of <em>D</em>_c influence mechanism was established. Two hundred and seventy undisturbed soil samples were collected from six different land-use types and scoured under nine specific combinations of flow rate and slope (flow rate: 0.167–0.5 L s⁻¹, slope: 10.5–20.8 %). The results showed that with the change in land-use type, <em>D</em>_c changed considerably. The average <em>D</em>_c of the shrubland was only 1/22 of that of the cropland. The change trend of <em>k</em>_r was consistent with that of <em>D</em>_c, while the change trend of <em>τ</em>_c had no obvious regularity. The relationships between the root density parameters and <em>D</em>_c were simulated using the exponential function and Hill curve, respectively, and the predictive effect of the Hill curve was better than that of the exponential function. Compared with the other comprehensive hydraulic parameters, shear stress (<em>τ</em>) was <em>D_c</em>’s most effective predictive factor. Correlation and path analyses revealed that soil organic matter (SOM) and root length density (RLD) were the best indicators of <em>D</em>_c. Furthermore, a dimensionless <em>D</em>_c prediction model suitable for different land-use types was established based on <em>τ</em>, SOM, and RLD, and the model exhibited a high accuracy (<em>R</em>² = 0.955, <em>NSE</em> = 0.911).</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108523"},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between soil structure and hydrological properties of the active layer in the permafrost region of the Qinghai–Tibet Plateau based on fractal theory","authors":"Mingxia Lv ,&nbsp;Yibo Wang ,&nbsp;Zhanghuai Ma ,&nbsp;Zeyong Gao ,&nbsp;Xiaobin Wang","doi":"10.1016/j.catena.2024.108518","DOIUrl":"10.1016/j.catena.2024.108518","url":null,"abstract":"<div><div>Soil structure and hydrological properties influence ecosystem stability and hydrological cycles. Fractal theory has been widely used in the quantitative analysis of soil particle-size distribution (PSD), aggregate and pore distribution, and evaluation of soil degradation, desertification, and wind erosion. However, the complex relationships between soil physiochemical properties and soil hydrological processes based on fractal theory have not been thoroughly investigated. This study focused on the correlation among soil structure, physicochemical properties, and hydrological properties in the active layers of various soil types and vegetation coverages in the permafrost region of the Qinghai–Tibet Plateau (QTP) using the principles of fractal theory. The results showed that the fractal dimension of soil PSD (<em>D_PSD</em>) in the active layer of the QTP was predominantly within the range of 2.13–2.70, which is notably smaller than the fractal dimension of the soil water retention curve (<em>D_WRC</em>: 2.72–2.93). With decreased vegetation coverage, the alpine soil particles exhibit gradual fineness, increasing the <em>D_PSD</em>. Soil physicochemical properties were affected by the interactions among internal factors and the external environment, such as geographical locations, slope orientations, vegetation coverages, and soil freeze–thaw cycles. The results of correlation analysis indicated that the fractal dimension of PSD and the soil water retention curve (WRC) were significantly correlated with soil textural, physicochemical, and hydraulic properties, particularly in clay, silt, and very fine sand content. Finally, a fractal model of WRC in the permafrost region was established based on <em>D_PSD</em> and WRC parameters of the Gardner and van Genuchten models. The study provides an improved perspective for revealing the transport process and influencing mechanism of soil water and salt in the active layer of the QTP and a more accurate prediction of soil physiochemical and hydrological properties for climate warming and wetting.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108518"},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decadal trends of black carbon and heavy metal accumulation in a lake sediment core from central China: A historical perspective","authors":"Changlin Zhan ,&nbsp;Dejun Wan ,&nbsp;Yongming Han ,&nbsp;Jiaquan Zhang ,&nbsp;Shan Liu ,&nbsp;Hongxia Liu ,&nbsp;Tianpeng Hu ,&nbsp;Wensheng Xiao ,&nbsp;Junji Cao ,&nbsp;Dong Li","doi":"10.1016/j.catena.2024.108513","DOIUrl":"10.1016/j.catena.2024.108513","url":null,"abstract":"<div><div>Black carbon (BC) and heavy metal are vital indicators of historical human activities. This study investigates the historical pollution trends of BC, char, soot, and heavy metals in lake sediments from Yinjia Lake (YJL). BC, char, and soot concentrations exhibit similar historical trends, with average values of 1.59, 1.27, and 0.32 mg/g, respectively. Char, constituting 67.25–85.85 % of BC, indicates a dominant fraction in the lake. A notable increase in BC, char, and soot was observed post-1955, peaking in 2005, followed by a decline, reflecting local economic development and anthropogenic activities. Heavy metals, including Cu, Cd, Zn, Pb, Cr, Co, Ni, and Mn, also displayed a significant increase post-1950, with Cd showing an exceptionally high concentration. The average deposition fluxes of BC, char, and soot were consistent with their concentrations, peaking in 2005. The correlations between BC, char, soot, and heavy metals suggest BC’s role as a metal carrier, influenced by industrial and anthropogenic emissions. The char/soot ratio analysis indicates predominant biomass burning pre-1950 and increased fossil fuel combustion post-1950, with regional variations observed. The study highlights the impact of industrialization, urbanization, and policy changes on pollution trends in YJL.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108513"},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of bedrock permeability on runoff and soil loss in soil-mantled karst slopes under successive rainfall conditions","authors":"Qian Fang ,&nbsp;Ruyi Zi ,&nbsp;Longshan Zhao ,&nbsp;Chunhua Fan ,&nbsp;Fayong Fang ,&nbsp;Xiaohe Qian","doi":"10.1016/j.catena.2024.108524","DOIUrl":"10.1016/j.catena.2024.108524","url":null,"abstract":"<div><div>Soil-mantled karst slopes exhibit rapid surface-belowground hydrological responses to rainfall because thin soil layers cover the bedrock. Bedrock features may play important roles in surface-belowground hydrological processes; however, the underlying mechanisms remain unclear. Herein, the effects of impermeable (no fissures) and permeable (3 % fissure rate) bedrock (BS1 and BS2, respectively) on the surface and belowground runoff and soil loss processes were investigated during three successive rainfall events. During each event, the surface runoff (SR), subsurface runoff (SBR), soil–rock interface flow (SRIF) and bedrock fissure permeation flow (BFPF) were recorded. The results showed that the SR and SBR rates for the BS1 slope were significantly greater than those for the BS2 slope (<em>P</em> &lt; 0.05) under all rainfall events. During rainfall, the SR and SBR accounted for ∼ 19 % and 8 %-12 % of the rainwater on the BS1 slope, respectively, and both were less than 5 % of the rainwater on the BS2 slope. Approximately 40 %-55 % of the rainwater was partitioned into SRIF on BS1 slope, and 54 %-74 % of the rainwater was partitioned into the BFPF on the BS2 slope. Furthermore, the BFPF on the BS2 slope was 33 % greater than the SRIF on the BS1 slope at the 1st rainfall and it increased to 50 % at the 3rd rainfall, suggesting that the successive rainfall increased the difference in rainwater loss from the bedrock surfaces between the slopes with different permeabilities. The surface soil loss rate was very low (&lt; 0.01 g·m²·s⁻¹) due to the low SR, and a significant positive correlation was found between the SR rate and surface soil loss rate (<em>P</em> &lt; 0.01) for both slopes. Compared with that on the BS2 slope, the soil loss on the BS1 slope was greater because of the higher SR rate. The belowground soil loss curves were discontinuous, indicating that the belowground soil loss process was very different from the surface soil loss. Therefore, bedrock permeability has a strong influence on runoff and soil loss in soil-mantled karst slopes, and this effect further increases with successive rainfall events.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108524"},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cliff-foot sandy cones: A proxy to study the time frames, patterns and rates of sandstone caprock decay?","authors":"Filip Duszyński ,&nbsp;Jarosław Waroszewski ,&nbsp;Kaja Fenn ,&nbsp;Andrzej Kacprzak ,&nbsp;Kacper Jancewicz ,&nbsp;Markus Egli","doi":"10.1016/j.catena.2024.108529","DOIUrl":"10.1016/j.catena.2024.108529","url":null,"abstract":"<div><div>Constraining time frames, patterns and rates of sandstone caprock disintegration in tablelands under temperate climate remains challenging. This is due to the scarcity of material in the appropriate geomorphological context that could be dated. Sandy cones are widespread below the sandstone plateaus and may serve as a direct sedimentological evidence of caprock disintegration <em>via</em> subsurface erosion. However, they have not been utilised to their full potential. The paper presents the results of investigation of two sandy cones in the Stołowe Mountains tableland, SW Poland, and soil profiles developed within them. The study also included collecting material for charcoal ¹⁴C and single grain Optically Stimulated Luminescence (OSL) dating. Both soil profiles (Dystric Arenosols (Humic)) are dominated by sand fraction. The lens–like laminae of light-coloured sand and darker material enriched in organic matter result from changing sedimentation dynamics. Charcoals were found to be widespread and occur down to the bottom of the studied soil profiles. While they record some of the oldest fire events ever documented in the tableland (mostly from Preboreal and Boreal, in one case from the Younger Dryas), we show that they are inappropriate to determine the timing of sediment deposition because of long residence time in the fissure network. Contrarily, single grain OSL dating is far better suited to trace the sedimentological history of the cones that initiated 10.5 ± 1.5 ka ago. The overall sedimentation trends are similar, likely reflecting climate fluctuations throughout the Holocene and the impact of deforestation. Although sandy cones may serve as a universal geochronological proxy in sandstone tablelands under temperate climate, the patterns and rates at which they develop are site-specific and controlled primarily by local geomorphological and topographical circumstances, governing the efficiency of the sediment supply. This finding was supported by a novel approach to the analysis of FMM components.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108529"},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-situ infiltration-runoff characterization of slopes under the influences of different rainfall patterns and slope gradients","authors":"Ruimin Chen ,&nbsp;Hongqiang Dou ,&nbsp;Yunzhao Lin ,&nbsp;Qingling Liu ,&nbsp;Wenbin Jian","doi":"10.1016/j.catena.2024.108519","DOIUrl":"10.1016/j.catena.2024.108519","url":null,"abstract":"<div><div>The infiltration-runoff process plays a crucial role in hydrological studies. The influences of rainfall patterns and slope gradients on the infiltration-runoff process are not yet fully understood, particularly under field conditions. In-situ monitoring and experiments were conducted to investigate the effects of a uniform rainfall pattern (UR, <em>q</em> = 17.5 mm h⁻¹ and <em>q</em> = 35 mm h⁻¹), the Chicago rainfall pattern (CR), and different slopes (<em>β</em> = 5° and 25°) on the infiltration, runoff, and sediment yield. The CR pattern is a mathematical model used to simulate natural rainfall based on historical rainfall data for a specific region. The results show that the response times of both the volumetric water content (VWC) and matric suction are directly proportional to depth, whereas their magnitudes are inversely proportional. The soil water characteristic curve (SWCC) obtained using the van Genuchten (vG) model can be established based on monitoring data for the drying path. The rainwater transformation is altered by the CR pattern, prolonging the initial runoff time and reducing rainfall infiltration. The infiltration and runoff rate curves, which mirror the rainfall pattern, exhibit peak values that increase both the cumulative runoff and sediment yield. The runoff rate, shear stress, and hydraulic power are significantly increased by increasing the slope angle. This positively contributes to the runoff and sediment yield and reduces the rainfall infiltration. The soil water profile during infiltration can be qualitatively divided into three stages. A time correction parameter, which is highly related to the initial runoff time, is incorporated into the Kostiakov model to more precisely predict the infiltration process. This paper presents a novel approach for applying the CR pattern to hillslope hydrology. Our findings improve the understanding of the effects of rainfall patterns and gradients on rainwater transformation and sediment yield and provide a scientific reference for hydrological modelling.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108519"},"PeriodicalIF":5.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of ecological drought vulnerability of the Qinghai-Tibet Plateau from 2003 to 2022 based on multi-source data","authors":"Junjie Lei ,&nbsp;Chengsong Li ,&nbsp;Wunian Yang ,&nbsp;Xin Yang ,&nbsp;Xiaolong Xing ,&nbsp;Xiaoyu Feng","doi":"10.1016/j.catena.2024.108512","DOIUrl":"10.1016/j.catena.2024.108512","url":null,"abstract":"<div><div>Ecological drought vulnerability (EDV) has become a focal point in global change research, underscoring the urgent necessity of establishing assessment criteria and estimating regional EDV using multisource data. We utilized a diverse array of data from 2003 to 2022, encompassing meteorological, hydrological, cryosphere, vegetation, soil, ecosystem, and land-use change information to develop a novel EDV index (EDVI) and construct spatial zoning for EDV land restoration for the unique ecological niches of the Qinghai-Tibet Plateau (QTP). The results demonstrated that (1) Locations with increased EDV accounted for a smaller area than those with decreased. The increased area of 933,497.75 km², 29.26 % of the total area, was mainly in the southern and northwestern regions. (2) Zones with continuously increasing (E5), sustained high increasing (E6), sustained high EDV (E3), and EDV increase (E2), which are extensively distributed across the northern and northeastern QTP, cover a total area of 820,579.75 km², accounting for 25.72 % of the total area. These regions should be considered when implementing restoration and management measures in areas with high EDV. (3) The land liquid water equivalent thickness (LWET) and canopy water amount (CWA), which are negatively correlated with EDV trends, show a decreasing trend. Conversely, carbon dioxide (CO₂), evapotranspiration (ET), and land surface temperature (LST), which are positively correlated with EDV trends, show an increasing trend. These changes exacerbate the EDV in the QTP. This study is crucial for formulating effective mitigation strategies against EDV in the QTP and serves as a reference for other regions.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108512"},"PeriodicalIF":5.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil-forming factors controlling Technosol formation in historical mining and metallurgical sites in the high-alpine environment of the Tatra Mountains, southern Poland","authors":"Magdalena Tarnawczyk ,&nbsp;Łukasz Uzarowicz ,&nbsp;Wojciech Kwasowski ,&nbsp;Beata Górka-Kostrubiec ,&nbsp;Artur Pędziwiatr","doi":"10.1016/j.catena.2024.108521","DOIUrl":"10.1016/j.catena.2024.108521","url":null,"abstract":"<div><div>The Tatra Mountains are a unique Central European alpine ecosystem where the non-anthropogenic soil cover and soil-forming processes are well recognized. However, the Technosols in the area’s high-mountain environment have not been studied in detail to date. Therefore the aim of this study was to identify the most important soil-forming factors controlling the properties of Technosols developed in historical mining and metallurgical sites in the Tatra Mountains of southern Poland active from the 15^th Century until the end of the 19^th. The present paper is one of the first attempts to study the genetic aspects of high-mountain Technosols in the temperate climatic zone. The study involved determining soil morphology and classification, soil properties, magnetic susceptibility, mineral composition, optical microscopic observations and total concentration of major elements. The studied Technosols were poorly developed soils with simple soil morphology (mainly A horizon in the topsoil and C horizons in the subsoil). There was a high content of rock fragments. The research has shown that the properties of Technosols in the Tatra Mountains were primarily determined by past human activities like mining and metallurgy as well as the type of anthropogenic parent material, which included mining wastes and metallurgical slags and determined soil properties together with mineral and chemical composition. Soil formation was significantly influenced by vegetation which was conditioned by the relief and climatic conditions dependent on altitudinal zonation. Vegetation and plant-derived soil organic matter shaped topsoil properties. The lengthy soil-forming process acting since a few centuries in some Technosols led to the formation of Bw horizons.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108521"},"PeriodicalIF":5.4,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hystory of viticulture in relation to climate change (from Neolithic to the fall of the Roman Empire)","authors":"Gilberto Pambianchi,&nbsp;Matteo Gentilucci","doi":"10.1016/j.catena.2024.108528","DOIUrl":"10.1016/j.catena.2024.108528","url":null,"abstract":"<div><div>Vine cultivation is highly influenced by the climate both in production quantities and quality, but also in the vocation of the various species in the area. In addition to the phenology of the plant, which is inextricably linked to the climate, geological-geomorphological processes have sometimes influenced the migrations of peoples, who in turn brought with them customs and traditions, including food, transplanting them to the land of arrival. This review analysed the spread of the grapevine from the earliest finds to the end of the Roman Empire, a period to which most of the grape varieties cultivated today in Europe and Africa can be traced. This review has traced the spread of the grapevine through climatic, geological-geomorphological and social studies in order to provide a chronological development of the subject in relation to the causal factors that influenced its spread. The present manuscript has the ambition of providing a union framework on the movements of the first wine-growing areas, tracing them chronologically and evaluating them on a climatic basis.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108528"},"PeriodicalIF":5.4,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Organic matter accumulation encouraged K-strategy bacteria increase and metabolism variation in karst vegetation restoration","authors":"Qiufang He,&nbsp;Jianan Wang,&nbsp;Wei Wu,&nbsp;Jiaxing Fan,&nbsp;Yongjun Jiang","doi":"10.1016/j.catena.2024.108500","DOIUrl":"10.1016/j.catena.2024.108500","url":null,"abstract":"<div><div>Vegetation restoration plays a critical role in terrestrial carbon sink increase, especially in subtropic Southwest China which has been the hotspot of vegetation restoration areas in recent decades. However, the variations in microbial community diversity resulting from this intervention remain unclear, and further research is needed to elucidate the complex interactions between microorganisms and soil nutrient elements. Soil samples were collected from three vegetation restoration stages in a karst rocky desertification (KRD) valley of Southwest China, which were named dry cropland (CL), 3–8 years grassland (WL), and afforestation land that recovered more than 20 years (AL), to investigate the soil nutrient and bacterial diversity variation during vegetation restoration course. The soil organic carbon (SOC) and total nitrogen (TN) contents are significantly higher in the afforestation land soil compared to the cropland and grassland soils, while the available nutrient contents decrease during the vegetation restoration course. The soil dominant bacteria genus shifts from <em>R</em>-strategy bacteria in cropland to <em>K</em>-strategy bacteria in afforestation land, and the relative abundances of <em>R</em>-strategy genera remain similar in the grassland and cropland soil. The dual-relative bacteria network evaluates from simple correlation net to very complex ones during the vegetation restoration, of which the core influenced factor alters from available nutrients to organic matter. The results of this study suggest that it will take a relatively longer period for the soil nutrient conditions and bacterial community to recover fully, although vegetation restoration could reduce the impacts of agricultural activities. This study refers to the ecological preservation and restoration strategies under the global climate change background, elucidating the nutrient metabolism variation induced by the accordance variation of organic matter accumulation and soil bacterial life strategy during the ecosystem restoration course.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108500"},"PeriodicalIF":5.4,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}