Catena最新文献

{"title":"Changes in plant carbon inputs alter soil phosphorus dynamics in a coniferous forest ecosystem in subtropical mountain area","authors":"Luoqi Zhao ,&nbsp;Xiaoni Wu ,&nbsp;Yongjian He ,&nbsp;Huaye Shang ,&nbsp;Changxing Hu ,&nbsp;Changqun Duan ,&nbsp;Denggao Fu","doi":"10.1016/j.catena.2024.108572","DOIUrl":"10.1016/j.catena.2024.108572","url":null,"abstract":"<div><div>Plant carbon input aboveground and underground influences soil biological and physicochemical processes in forest ecosystems. However, compared with the well-known interactions between plant carbon and soil carbon or nitrogen, the impact on soil phosphorus (P) dynamics remains unclear. Here we investigated soil P dynamics in aggregates and bulk soil after one-year of plant carbon removal treatments (RL, removing litter; TG, tree girdling; RLTG, combination of removing litter and tree girdling; CK, control) under subtropical <em>Pinus yunnanensis</em> forest in a soil P-enriched degraded mountain area. Compared to CK, tree girdling significantly decreased the macroaggregate proportion and increased the microaggregate proportion by changing soil total carbon (TC) and Fe concentration. With the decrease of soil TC, the increase of HCl-Pi (inorganic P extracted by HCl) in microaggregate and silt and clay was significantly higher than that in macroaggregate. In addition, easily-available P and non-available P at bulk soils significantly declined and increase under RL and TG treatments, respectively. Redundancy analysis revealed that Fe, TC, and acid phosphatase activity were the main factors affecting P fractions in bulk soils. Higher δ¹⁸O_P (oxygen isotope composition of phosphate) values of HCl-Pi pool and its significantly negative relationship with soil TC across the all carbon removal treatments, suggesting the weakened ability for plant to unlock soil bioavailable inorganic P combined with minerals induced by different plant carbon removal treatments. Overall, our results highlight that the importance of litter and root carbon in regulating soil P fractions and dynamics by altering the proportion of soil aggregates and the physicochemical properties of bulk soil.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108572"},"PeriodicalIF":5.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700614","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":"Effects of the conversion of croplands to wetlands on the components and sources of soil organic carbon","authors":"Yongkang Zhao ,&nbsp;Guodong Zheng ,&nbsp;Junyu Dong ,&nbsp;Zhiliang Wang ,&nbsp;Hepeng Xu ,&nbsp;Changchao Li ,&nbsp;Yijing Wang ,&nbsp;Yan Wang ,&nbsp;Xiaoke Liu ,&nbsp;Huaizhi Bo ,&nbsp;Jian Liu","doi":"10.1016/j.catena.2024.108565","DOIUrl":"10.1016/j.catena.2024.108565","url":null,"abstract":"<div><div>Land use/cover change (LUCC) plays an important role in soil organic carbon (SOC) storage. However, the responses of SOC components to LUCC and the contribution of microbial-derived carbon (typically represented by microbial necromass carbon, MNC) to SOC in wetland-related LUCC remain unclear. In this study, we investigated the responses of SOC components and the contribution of microbial-derived carbon to SOC in three newly formed wetlands that were converted from croplands by coal mining subsidence and have developed for 1, 6, and 15 years, respectively. The findings revealed that the conversion initially led to the decrease of SOC, and then recovered with time, in which occluded particulate organic carbon (oPOC) dominated the response of SOC to the conversion and significantly accumulated in the wetland with 15 years of development. Moreover, our study found that MNC accounted for a minor fraction (5.9 %–13.1 %) of SOC in the newly formed wetlands, which is contrary to the dominant role of MNC in the contribution to SOC in upland soils. Our study provides evidence for understanding the role of microbial-derived carbon in newly formed wetlands and highlights the importance of oPOC when focusing on the effects of LUCC on SOC storage.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108565"},"PeriodicalIF":5.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700615","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":"Quantification of soil nutrient stocks and stoichiometric ratios in Eucalyptus pellita biomass plantation chronosequence in Papua New Guinea","authors":"Gossie M. Powae,&nbsp;B.K. Rajashekhar Rao","doi":"10.1016/j.catena.2024.108564","DOIUrl":"10.1016/j.catena.2024.108564","url":null,"abstract":"<div><div><em>Eucalyptus pellita</em> biomass tree plantations have been widely established in the native grasslands of Markham Valley in Papua New Guinea for bioenergy production and carbon capture. However, the impacts of converting grasslands to energy plantations, and the ensuing soil transformations across the plantation chronosequence, remain largely unexplored. Such land use transitions are associated with depletion of C sinks, increased C emissions, and potential implications for climate change. This study aimed to evaluate dynamic changes in key soil physico-chemical properties, as well as nutrient stocks of soil organic carbon (SOC), total nitrogen (TN) and total phosphorus (TP), alongwith their stoichiometric ratios. A chronosequence of <em>E. pellita</em> plantations aged 2-, 4-, 7- and 10-years along with native grassland sites, was examined across two sampling seasons (January and June). The results indicated significant (p &lt; 0.05) impacts of tree stand age on SOC and TP concentration and stocks, while TN remained unaffected. Soil NH₄⁺-N concentration declined with the plantation age, contrasting with relatively steady NO₃^–-N levels across the chronosequence. SOC and TP stocks within the top 45 cm of soil depleted at rates of 0.19 Mg (Mega Gram) ha^-1y^-1 and 0.011 Mg ha⁻¹ y^-1, respectively. The broader stoichiometric ratio of C:N (&gt; 25:1) observed in soils of 4- and 7-year-old plantations suggest potential nitrogen immobilization and mineral N deficiency to tree nutrition. Conversely, the C:P ratios across the chronosequence were &lt; 200, favoring the net mineralization of organic P compounds. Overall, afforestation of grasslands with <em>E. pellita</em> for biomass production does not appear ecologically beneficial in the short-term (&lt;10 years), when considering only the belowground SOC sequestration potential.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108564"},"PeriodicalIF":5.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700613","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":"Vegetation vulnerability in karst desertification areas is related to land–atmosphere feedback induced by lithology","authors":"Shihao Zhang ,&nbsp;Kangning Xiong ,&nbsp;Xiaoying Min ,&nbsp;Dayun Zhu","doi":"10.1016/j.catena.2024.108542","DOIUrl":"10.1016/j.catena.2024.108542","url":null,"abstract":"<div><div>Although vegetation productivity in the karst desertification region is much lower than in other lithological areas at the same latitude, the exact mechanisms through which lithology constrains vegetation productivity via hydrological processes still need to be discovered. Two types of lithological zones (non-soluble and soluble rocks) were selected for this study, which can be categorized into three types of study units: non-karst unit (NKU), karst non-desertification unit (KNDU), and karst desertification unit (KDU). NKU and KNDU were used as comparisons to explore the effects of terrestrial and atmospheric water on vegetation productivity in KDU from 2001 to 2018. The results exhibited that although the climatic conditions were similar, there were differences in regolith thickness and hydrological processes in the different lithological zones. The shallow regolith in KDU increased the regolith moisture loss rate (RMLR) by 70.78% and 68.51% but decreased regolith moisture (RM) by 8.34% and 8.01% compared to the deep regolith of NKU and KNDU, indicating that a thinner regolith with a high RMLR exacerbates the loss of RM. Further analysis showed that low RM also increased the change rate of vapor pressure deficit by reducing evapotranspiration, revealing that low RM attenuates the water circulation from the surface to the atmosphere and creates atmospheric drying. Both approaches that contain surficial and atmospheric drying can constrain vegetation productivity. Overall, we found that RMLR in different lithological zones not only directly controls RM to affect vegetation growth but can also influence land–atmosphere feedback. The karst desertification region with shallow regolith is constrained by land–atmosphere feedback caused by high RMLR, so the vegetation system exhibits vulnerability.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108542"},"PeriodicalIF":5.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700693","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":"Quantitative reconstruction of sedimentary processes, provenance, and binary sources in Horqin Sandy Land, NE China: An integrated approach","authors":"Peng Wu ,&nbsp;Yuanyun Xie ,&nbsp;Jun Peng ,&nbsp;Yehui Wang ,&nbsp;Haodong Qi","doi":"10.1016/j.catena.2024.108570","DOIUrl":"10.1016/j.catena.2024.108570","url":null,"abstract":"<div><div>As the largest semi-fixed dune field in China, the Horqin Sandy Land (HSL) provides a valuable opportunity to study the surface processes and paleoenvironmental evolution of drylands in the monsoon region. However, limited data and a single qualitative approach hinder our understanding of the sediment erosion and transport process of the HSL. The ability to trace and quantify sediment provenance of the HSL is increasingly needed to properly understand the source-to-sink processes, and to accurately interpret aeolian–fluvial interactions in terms of a comprehensive database and multidisciplinary approach perspective. This study integrates previously existing grain-size, heavy mineral, element geochemistry, Sr-Nd-Hf isotopic, and zircon-geochronological databases with new petrographic, TIMA automation heavy mineral data and statistical analysis. Together, the high degree of recycling of HSL severely limits the provenance identification of element fingerprints, although these elements are largely inherited from the parent rocks and are not affected by chemical weathering. The heavy minerals, Sr-Nd-Hf isotopes, and zircon U-Pb age composition together reveal that the HSL sediments are a binary mixture of the Palaeozoic-Mesozoic igneous rocks in the Great Xing’an Range (GXR) and the Precambrian metamorphic rocks in the Yanshan Mountains. The isotopic end-element mixing models, multidimensional scaling (MDS) diagrams and inverse Monte Carlo models of detrital zircon ages indicate that GXR and Yanshan Mountains account for ∼ 60 % and ∼ 40 % of the source contributions, respectively. Under the strong influence of the northwest to west winds controlled by the Mongolia-Siberian High, detrital material from the GXR is consistently transported to the interior of the dune field and intensively reworked. The Laoha River and the Yangxumu River originating from the Yanshan Mountains provide stable detrital sources for the HSL. In addition, the transverse flow of the Xilamulun River and the West Liao River has provided sufficient space and sediment for the dunes, which is conducive to the full mixing of materials inside the dune field. The sediment in the southeast of HSL shows an obvious Yanshan Mountains source dominance and a grain-size dependence. The coarse fractions (&gt;63 μm) mainly modified from the river channel sand and alluvial plain of the Yangxumu River (∼75.8 %), while the fine fractions (&lt;63 μm) have a strong affinity with the loess deposit of Yanshan Mountains (∼52.4 %). The fluvial-lacustrine deposits during the last glacial maximum served as a temporary transit station, providing a direct dust source for the modern dunes in the HSL region. Aeolian–fluvial interaction controls the geomorphology and landscape evolution of the HSL in the monsoon region; however, it is challenging to derive insights into the landscape evolution from studying surface samples.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108570"},"PeriodicalIF":5.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700690","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":"Spatial distribution and succession of microbial communities in biological soil crusts as affected by microtopography factors in the granite tailing areas of Macheng, China","authors":"Sijia She ,&nbsp;Yue Tao ,&nbsp;Jing Zhu ,&nbsp;Wenyan Ye ,&nbsp;Lianghui Hou ,&nbsp;Yaojia Fu ,&nbsp;Lanzhou Chen","doi":"10.1016/j.catena.2024.108532","DOIUrl":"10.1016/j.catena.2024.108532","url":null,"abstract":"<div><div>Microorganisms within biological soil crusts (BSCs) are crucial for in the gradual restoration of ecosystem functions in severely human-disturbed environments. However, little is known about the response of soil microbial communities to heterogeneous environments formed by microtopography in granite tailing areas. Herein, BSC samples were collected from typical microtopography (slope aspect and plant canopy) within the granite tailings area to investigate the variances in the spatial distribution of microbial communities and soil succession response to environmental variables. Results showed significant differences in the distribution of BSCs, microbial community composition, and soil properties across nine survey sites. The biomass, bacterial richness, and relative abundance of Actinobacteria, Proteobacteria, Streptophyta, and Chlorophyta of BSCs were significantly higher under the plant canopy and on shady slopes areas compared with other regions. Redundancy analysis revealed that enzyme activity had the highest explanatory power, and soil moisture content was identified as the main factor affecting for the development of BSCs. Mantel tests indicated that prokaryotic organisms were primarily affected by pH and available phosphorus, while variations in eukaryotic organisms were correlated with humic acid components, available phosphorus, and urease. In granite tailing areas, microorganisms adapted their metabolic activities based on the nutrient status of their environment. In conclusion, slope aspect and plant canopy drive changes in soil properties and nutrient structure, microbial community distribution, and BSC development. These findings offer a novel perspective on the restoration of soil ecosystems in granite tailing mining areas.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108532"},"PeriodicalIF":5.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700691","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":"Estuarine wetland tidal organic carbon activates microbial carbon pump and increases long-term soil carbon stability","authors":"Mengdi Xie ,&nbsp;Haoyu Dong ,&nbsp;Xiaolu Tang ,&nbsp;Liwei Qian ,&nbsp;Wenxuan Mei ,&nbsp;Jianfang Yan ,&nbsp;Xiaohua Fu ,&nbsp;Yu Hu ,&nbsp;Lei Wang","doi":"10.1016/j.catena.2024.108559","DOIUrl":"10.1016/j.catena.2024.108559","url":null,"abstract":"<div><div>Capture of tidal organic carbon (TOC) in estuarine systems can increase soil respiration (SR) and OC breakdown, but it is also revealed tht TOC input intensity may influence the accumulation of microbial necromass, which affects soil carbon sink of estuarine wetland. To clarify how TOC input affects the microbial carbon pump and SOC stability, we conducted a 6-year field study in low and high flats of the Yangtze River estuary and examined C cycling processes. In low tide flats, where TOC input decreased from upstream to downstream, SR decreased with the increases of SOC, whereas the microbial necromass contribution to SOC decreased from 52.16% to 41.75%, which was higher than the contribution of plant-derived refractory C. Additionally, on a mudflat, which had the highest TOC capture but lacked plant C input, microbial necromass accounted for the largest percentage of SOC (61.45%). These indicated that TOC input could increase the contribution of microbial necromass C toward SOC, in comparation with plant lignin. And the promotion of TOC input to OC stability of wetland soil would become significant with the accumulation of TOC in soil after a long period. The analysis of bacterial and fungal community structure verified this speculation that the abundance of C-associated heterotrophic bacteria and fungi increased in soil with high TOC input. These findings further supplement our previous study about the short-term inhibition effect of TOC input to SOC sequestration.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108559"},"PeriodicalIF":5.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700689","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":"Wind dispersal and saltation effect on microinvertebrate propagules: A wind tunnel study","authors":"Jose A. Rivas Jr. ,&nbsp;R. Scott Van Pelt ,&nbsp;Elizabeth J. Walsh ,&nbsp;Thomas E. Gill","doi":"10.1016/j.catena.2024.108560","DOIUrl":"10.1016/j.catena.2024.108560","url":null,"abstract":"<div><div>Ephemeral wetland surfaces are preferential locations for wind erosion and repositories for resting stages (propagules) of aquatic invertebrates. Dormant propagules can disperse to new habitats via wind (aeolian transport, or anemochory). Wind transport of invertebrate propagules has been documented at local and regional scales, but prior laboratory wind tunnel tests of propagule anemochory neither replicated the predominant natural processes of wind erosion in drylands, saltation-sandblasting, nor determined the viability of experimentally wind-transported propagules. We used a soil saltation wind tunnel to test aeolian erosion, transport, and subsequent viability of propagules from seven aquatic invertebrate species. A propagule-bearing crusted soil surface was prepared, then abraded by saltating silica sand in the wind tunnel to emit aeolian sand and dust. Sediment was collected from three downstream sections of the wind tunnel, representing different transport distances in the environment, and propagules were quantified for each section by species. The wind-eroded material was rehydrated with sterile media to detect hatching of any propagules which survived the sandblasting. Although survival was much lower than in a control experiment without wind tunnel saltation treatment, and hatching rates were lower than those reported from undisturbed egg banks, viable individuals of all wind-tunnel-tested species were detected after hydration. Larger propagules settled closer to the source of entrainment than smaller propagules, indicating a shorter dispersal distance for larger propagules- although only short-distance anemochory may be necessary for dispersal across drainage basins. These results demonstrate that resting stages of many invertebrates can be wind-bombarded from natural surfaces along with sand and dust, dispersed into and transported through the atmosphere, and remain viable. Future investigations of anemochory of aquatic invertebrates from ephemeral waters should use appropriate wind tunnels to evaluate propagule and surface properties as potential adaptations for wind dispersion.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108560"},"PeriodicalIF":5.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700692","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":"Moderate grassland use counteracts the combined negative impact of nitrogen deposition and plant diversity decline on carbon exchange","authors":"Guangyin Li ,&nbsp;Yue Wang ,&nbsp;Yann Hautier ,&nbsp;Xuxin Song ,&nbsp;Yipeng Zhou ,&nbsp;Minna Zhang ,&nbsp;Ling Wang","doi":"10.1016/j.catena.2024.108558","DOIUrl":"10.1016/j.catena.2024.108558","url":null,"abstract":"<div><div>Atmospheric nitrogen deposition has inconsistent effects on grassland carbon (C) fluxes. Whether its effects are influenced by other global change drivers such as plant diversity decline, and whether grassland management (livestock grazing/mowing) can regulate these effects remain unclear. We performed a 6-year field manipulative experiment to examine the interactive effects of nitrogen addition, plant diversity decline, and moderate grassland use by livestock grazing and mowing on ecosystem C fluxes. Throughout three consecutive years (2018–2020), we measured net ecosystem CO₂ exchange (NEE) as the balance of gross ecosystem production (GEP) and ecosystem respiration (ER), on a monthly basis during the growing season (from May to September). We found that declines in plant diversity led to a reduction in NEE, whereas moderate grassland use resulted in an increase. The impact of nitrogen addition on NEE was contingent on specific context of grassland plant diversity and grazing/mowing utilization. Specifically, nitrogen addition had no effect on NEE in communities with high plant diversity while reduced NEE in communities with low diversity. However, in low plant diversity communities with grazing/mowing utilization, nitrogen addition increased NEE. Structural equation models further revealed that the combined effects of global changes (nitrogen addition and diversity decline) and grassland use (livestock grazing and mowing) on carbon exchange was regulated primarily by aboveground biomass. Our results indicate that moderate grassland use can reverse the negative effects of nitrogen addition on NEE in the low-diversity community. Our results highlight the potential of moderate grassland use as an effective management strategy for the enhancement of grassland C sequestration under ongoing global changes such as nitrogen deposition and biodiversity loss.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108558"},"PeriodicalIF":5.4,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663116","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":"Different types of Anthropocene signals recorded in Huguangyan Maar Lake over the past 450 years","authors":"Shiwei Jiang ,&nbsp;Xin Zhou ,&nbsp;Li Ma ,&nbsp;Shukun Cui ,&nbsp;Xuanqiao Liu ,&nbsp;Xiaoyan Liu ,&nbsp;Anze Chen ,&nbsp;Yong Luo ,&nbsp;Liqiang Xu ,&nbsp;Fangming Zeng ,&nbsp;Deming Kong ,&nbsp;Chao Huang ,&nbsp;Guangcheng Zhang","doi":"10.1016/j.catena.2024.108562","DOIUrl":"10.1016/j.catena.2024.108562","url":null,"abstract":"<div><div>Over the past few centuries, human activities have increasingly impacted global climate and ecological environments. The “Anthropocene” has been proposed to highlight the significant influence of human activities on the environment. However, prior research has focused on analyzing a single type of human activity in lake sediments. In this study, we examined the historical changes in water eutrophication, terrestrial vegetation, and heavy metal pollution in the sediments of Huguangyan Maar Lake over the past 450 years. By comparing different human activity records within the same regional and chronological framework, we found that the timing of significant impacts on lake sediments varied by activity type. Eutrophication, induced by population growth and agricultural fertilization, began around 1950 CE. Changes in vegetation owing to agricultural and forestry practices occurred around 1780, 1880, and 1980 CE. Significant enrichment of heavy metals from industrial production began around 1950 CE. We suggest that, in reconstructing the history of human activities or defining the onset of the “Anthropocene,” it is crucial to consider both the types of human activities and their spatial extent.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"247 ","pages":"Article 108562"},"PeriodicalIF":5.4,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663112","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}