Geoderma Regional最新文献

{"title":"Immobilization of potentially toxic elements by grape waste biochar in contaminated soils","authors":"Fouzieh Beigmohammadi ,&nbsp;Eisa Solgi ,&nbsp;Ali A. Besalatpour ,&nbsp;Mohsen Soleimani","doi":"10.1016/j.geodrs.2024.e00900","DOIUrl":"10.1016/j.geodrs.2024.e00900","url":null,"abstract":"<div><div>Biochar derived from agricultural waste is recognized as an environmentally sustainable method for immobilizing potentially toxic elements (PTEs) in contaminated soils. This study investigated the efficacy of biochar produced from grape residues in immobilizing PTEs such as Pb, Ni, Mn, Cu, and Co in contaminated soils. A total of 110 surface soil samples were collected from three land-use types (agricultural, urban, and industrial) in Arak, Iran. The bioavailable fractions of PTEs were analyzed using the diethylenetriamine penta acetic acid (DTPA) extraction method. The properties of biochar were characterized through X-ray diffraction, field emission scanning electron microscopy, Fourier-transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy, and Brunauer-Emmett-Teller (BET) analysis. Biochar was incorporated into the contaminated soils at a rate of 5 % (<em>w</em>/w) and incubated for two months. The results indicated that the biochar application enhanced soil properties, including pH, electrical conductivity, cation exchange capacity, organic matter, and soil microbial respiration. Simultaneously, the DTPA-extractable concentrations of Cu, Ni, Pb, and Co decreased from 7.26, 1.83, 5.82, and 0.25 mg/kg, to 5.54, 0.86, 4.06, and 0.18 mg/kg, respectively, corresponding to reductions of 24 % to 79 % in bioavailability. The reductions were attributed to the functional groups with negative charges and the high specific surface area of the biochar, as identified by FTIR and BET analyses. A random forest analysis further revealed that organic matter and soil microbial respiration were the most influential factors in in reducing the bioavailability of PTEs following biochar amendment. These findings underscore the potential of grape residue-derived biochar as an effective amendment for mitigating PTE contamination in soils.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00900"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143179280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 relationships between Munsell colour attributes and organic carbon in highly weathered tropical soils","authors":"Georges K. Kome ,&nbsp;Roger K. Enang ,&nbsp;Bernard P.K. Yerima ,&nbsp;Eric Van Ranst","doi":"10.1016/j.geodrs.2024.e00898","DOIUrl":"10.1016/j.geodrs.2024.e00898","url":null,"abstract":"<div><div>Soil organic carbon (SOC) is a very important parameter for assessing the quality of agricultural soils. However, the availability and use of such data by resource-poor farmers, especially in Sub-Saharan Africa, remains a major challenge due to the financial and time constrains involved. Thus, there is need to assess and adopt reliable methods for the rapid estimation of soil organic carbon content by indigenous farmers and field users. The objective of this study was to evaluate the quantitative relationships between soil organic carbon and Munsell colour attributes (value and chroma) in highly weathered tropical soils of the Northwestern Highlands of Cameroon. Forty-six soil profiles (28 Acrisols and 18 Ferralsols), including 46 surface (A) horizons and 181 subsurface horizons (Bo, Bt) were used. Soil organic carbon data and Munsell colour attributes, obtained through standard procedures, were subjected to descriptive statistical, correlation, regression and principal components analyses, in order to evaluate the relationships existing between SOC and Munsell colour attributes. In general, there were negative and significant (<em>p</em> &lt; 0.001) correlations between SOC and all Munsell colour attributes (chroma, value, value + chroma, and value +0.5 chroma). The best models relating SOC and Munsell colour attributes were logarithmic models, with soil colour explaining &gt;70 % of the variance. The results indicate that SOC in highly weathered tropical soils can be conveniently estimated using Munsell soil colour attributes (value + chroma). Better estimates were obtained using logarithmic models for surface (A horizon) soil samples having a sand content &gt;50 %.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00898"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Geochemistry and microbiology of boreal alluvial soil under salinization” [Geoderma Regional 38 (2024) e00842]","authors":"E.A. Khayrulina ,&nbsp;N.V. Mitrakova ,&nbsp;A.Yu. Maksimov ,&nbsp;P.Yu. Maltseva ,&nbsp;A.A. Bogush","doi":"10.1016/j.geodrs.2024.e00883","DOIUrl":"10.1016/j.geodrs.2024.e00883","url":null,"abstract":"","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00883"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 tree species composition in plantation forest on soil aggregate stability and organic carbon pools in northeastern China","authors":"Changzhun Li,&nbsp;Qingcheng Wang,&nbsp;Huirong Wu,&nbsp;Yong Zhang,&nbsp;Shuangjiao Ma,&nbsp;Liqing Xu","doi":"10.1016/j.geodrs.2024.e00899","DOIUrl":"10.1016/j.geodrs.2024.e00899","url":null,"abstract":"<div><div>Forest tree species composition influences soil aggregate stability (SAS) and labile organic carbon (LOC) components, which may affect soil organic carbon (SOC) sequestration. Despite the general belief that mixed forests enhance SOC storage, evidence suggests that certain monocultures may outperform mixed forests. Therefore, information on the specific impact of tree species mixing on SOC through SAS and LOC remains limited. This study aimed to investigate the effects of tree species composition on SAS and LOC in 49-year-old monoculture (<em>Larix gmelinii</em> (Lg), <em>Pinus koraiensis</em> (Pk)) and mixed conifer-broadleaf (<em>Larix gmelinii - Fraxinus mandshurica</em> (LF), and <em>Pinus koraiensis - Populus ussuriensis</em> (PP)) stands, and its impact on SOC sequestration. We measured SAS indices (including mean weight diameter (MWD), geometric mean diameter (GMD), and &gt; 0.25 mm water stable aggregate proportion (WSA)), SOC storage, and LOC components (easily oxidized organic carbon (EOC), microbial biomass carbon (MBC), and dissolved organic carbon (DOC)) in 0–40 cm soil horizons during the growing season (June, August, and October). Our results showed that tree species composition significantly influenced SAS and SOC components, with the highest SAS found in the 0–20 cm soil horizon in Pk and PP forests (<em>p</em> &lt; 0.05) (Jun.: MWD _Pk: 0.98, GMD _Pk: 1.88, WSA _Pk: 1.79, MWD _PP: 0.98, GMD _PP: 1.90, WSA _PP: 1.81; Aug.: MWD _Pk: 0.99, GMD _Pk: 1.85, WSA _Pk: 1.77, MWD _PP: 0.99, GMD _PP: 1.89, WSA _PP: 1.81; Oct.: MWD _Pk: 0.98, GMD _Pk: 1.86, WSA _Pk: 1.76, MWD _PP: 0.97, GMD _PP: 1.83, WSA _PP: 1.73) and the highest SOC components in the LF stand (<em>p</em> &lt; 0.05) (soil horizon 0–20 cm: Jun.: SOC: 110.23 g/kg, EOC: 92.81 g/kg, MBC: 1418.39 mg/kg, DOC: 1090.01 mg/kg; Aug.: SOC: 108.46 g/kg, EOC: 79.57 g/kg, MBC: 1369.91 mg/kg, DOC: 1316.11 mg/kg; Oct.: SOC: 109.78 g/kg, EOC: 44.37 g/kg, MBC: 1782.6 mg/kg, DOC: 671.05 mg/kg). Correlation analysis revealed significant relationships between SOC and LOC components (<em>p</em> &lt; 0.05, r _EOC = 0.43, r _MBC = 0.46, r _DOC = 0.17) but not associated with SAS (<em>p</em> &gt; 0.05, r _MWD = −0.07, r _GMD = −0.07). Tree species composition in plantation stands significantly affects SAS and SOC pools. In conclusion, the positive effect of mixed coniferous and broad-leaved forests on SAS and SOC pools is also contingent upon the tree species identity. The results suggest that targeted selection of tree species could better enhance SAS and SOC pools in plantation than a mere increase in species richness.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00899"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transitioning to soil health and carbon sequestration with agroforestry and perennial crop systems","authors":"M. Oelbermann ,&nbsp;S.X. Chang ,&nbsp;M. Pulleman ,&nbsp;J.K. Whalen","doi":"10.1016/j.geodrs.2024.e00895","DOIUrl":"10.1016/j.geodrs.2024.e00895","url":null,"abstract":"","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00895"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting soil properties for fertiliser recommendation in South Korea using MIR spectroscopy","authors":"Sang Ho Jeon ,&nbsp;Ho Jun Jang ,&nbsp;Wartini Ng ,&nbsp;Budiman Minasny ,&nbsp;Seong Heon Kim ,&nbsp;Jay Hong Shim ,&nbsp;Ahnsung Roh ,&nbsp;Soon ik Kwon ,&nbsp;Jin-Ju Yun","doi":"10.1016/j.geodrs.2024.e00901","DOIUrl":"10.1016/j.geodrs.2024.e00901","url":null,"abstract":"<div><div>The national fertiliser policies in South Korea aim to provide guidance to farmers for efficient fertiliser application and thus rely on the annual collection and analysis of soil samples. Providing timely soil analysis results remains a challenge, as wet laboratory analysis is time-consuming and expensive. This study represents a pioneering effort in South Korea, by investigating mid-infrared (MIR) spectroscopy for accurate soil properties prediction and its application in developing fertiliser recommendations for several crop types. Additionally, we examined the time efficiency of MIR spectroscopy compared to conventional analytical methods. A total of 567 soil samples from diverse soil and land use types (paddy, upland, orchard, and greenhouse fields) in South Korea (0–20 cm depth) were collected and scanned using an MIR spectrometer. Four machine learning algorithms (partial least squares regression, support vector machine, cubist, and random forest) were trialled and compared for their prediction accuracies using 15-fold cross-validation for eight essential soil properties: organic matter, total nitrogen (N), available phosphorus (P), pH, exchangeable calcium (Ca), potassium (K), magnesium (Mg), and available silica. Results demonstrated robust predictive performance (R² &gt; 0.70) across the selected soil properties, with organic matter and total nitrogen exhibiting excellent accuracy (R² &gt; 0.9). Compared with conventional analysis, the average difference in fertiliser application recommendation for seven crops using MIR prediction was 3.8 % for N, 13.9 % for P and 8.1 % for K. Based on the measurement of 11 soil properties, analysis using MIR spectroscopy was about 12 times faster than conventional methods. The study demonstrates the potential of this approach to revolutionise soil analysis protocols, offering a more efficient and cost-effective solution for sustainable agricultural practices in South Korea.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00901"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Smectite-rich horizons in Inceptisols trigger shallow landslides in tropical granitic terranes","authors":"P.C. Ryan ,&nbsp;D. Mahmud ,&nbsp;K.L. Derenoncourt ,&nbsp;L.F. Nerbonne ,&nbsp;I.L. Pérez-Martín ,&nbsp;J. Reyes Collovati ,&nbsp;M. Junaid ,&nbsp;C. Cerovski-Darriau","doi":"10.1016/j.geodrs.2024.e00897","DOIUrl":"10.1016/j.geodrs.2024.e00897","url":null,"abstract":"<div><div>Puerto Rico was affected by &gt;70,000 landslides in the wake of 2017 Hurricane Maria, and landslide prevalence was especially high in the Utuado region in the Cordillera Central. Landslide density was highest where soil parent material is granodiorite; landslide slip surfaces tended to be shallow (&lt;60 cm), and often were mobilized rapidly and with long runout distances. This study combines field observations with soil mineralogy (bulk and clay fractions), soil geochemistry (bulk fraction), and soil strength as determined by field cone penetrometer testing (CPT) to test the hypothesis that clay-rich subsoil horizons function as slip planes when water-logged. Soil pits were excavated to depths of ∼200 cm in Ultisols on an undulating plateau and to ∼100 cm in Inceptisols on steep slopes (36-43^o) that flank the plateau and cone penetrometer tests (CPT) were done within 2 m of the soil pit. Six pits were located adjacent to scarps from previous landslides, enabling analysis of soil profiles downward through extrapolated slip surfaces. Results from X-ray diffraction (XRD), X-ray fluorescence (XRF) and thermogravimetric analysis (TGA) indicate that soils are heterogeneous, often with subsoil horizons enriched in clay minerals and immobile elements (Al, Fe, Ti). Inceptisols on steep slopes often contain smectite-rich horizons at 30–60 cm depth that appear to function as slip surfaces; in other Inceptisols, such horizons are not present and landslide susceptibility is potentially lower. In Ultisols, soil mineralogy is dominated by kaolinite with minor halloysite, and increased kaolinite content at soil depths ≥80 cm at some sites suggests potential slip surfaces enhancing probability of landslides. The origin of clay-rich horizons appears to be (1) fractures in granodiorite that facilitate water flow and leaching, accelerating mineral dissolution during early weathering stages, and (2) smectite-rich buried soils under permeable colluvium likely deposited by a prior mass wasting event. Where clay-rich layers occur beneath more-permeable horizons, rapid infiltration then absorption of water in clay-rich subsoil horizons causes decreased shear strength and increased landslide susceptibility.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"40 ","pages":"Article e00897"},"PeriodicalIF":3.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The amendment value of pulp and paper mill sludges in Finnish coarse-textured soil","authors":"Mari Räty ,&nbsp;Maarit Termonen ,&nbsp;Juha Hyvönen ,&nbsp;Jaana Uusi-Kämppä ,&nbsp;Kirsi Järvenranta ,&nbsp;Helena Soinne ,&nbsp;Johanna Nikama ,&nbsp;Kimmo Rasa ,&nbsp;Mikko Järvinen ,&nbsp;Riikka Keskinen","doi":"10.1016/j.geodrs.2024.e00894","DOIUrl":"10.1016/j.geodrs.2024.e00894","url":null,"abstract":"<div><div>As a source of exogenous organic matter, pulp and/or paper mill sludges (PPMS) may have beneficial effects on crop productivity and soil chemical and physical properties. This study's aim was to assess the impacts of two different PPMS materials on crop yields, the quality of percolation water, and soil chemical and hydraulic properties in a three-year field experiment on a silt loam soil in East Central Finland. Fresh (FPMS) and lime-stabilized (LPMS) sludges were applied once at rates of 21–28 fresh-Mg ha⁻¹ in the spring prior to the sowing of grass ley under barley as a cover crop and incorporated into the upper 7 cm soil layer. Supplemental nitrogen (N) was applied at levels of 40 and 80 kg ha⁻¹. A decrease of barley grain yield due to N immobilization was observed at the N level 40 kg ha⁻¹, but the standard N application rate (80 kg ha⁻¹) connected with a moderate C:N ratio (FPMS 27:1, LPMS 24:1) was adequate to avoid significant yield losses. In the second and third year following the PPMS applications, there was a tendency for positive residual effects on the total dry matter yield of grass ley, which could be attributed to slow mineralization of sludge-N. The application of LPMS increased the pH in surface soil by 0.5–0.7-units and Ca concentration by 240–660 mg L⁻¹ of soil relative to the non-amended control over the study period. In the year of PPMS applications, the amendments produced a significant increase (about 2.0 g kg⁻¹) in the total carbon (C) concentrations in the uppermost 10 cm soil layer relative to the non-amended soil. During the following years, the change in soil C was no longer measurable, indicating relatively fast decomposition of sludge-C. Saturated hydraulic conductivity tended to be 1.4 to 2.3 times higher in the PPMS-treated soils than in the non-amended soil. Except for the decline in readily plant-available water, the other common water retention parameters were not significantly affected by the PPMS amendments. There were significant positive treatment effects on the amount of water retained between −13 and − 316 kPa matric potentials, suggesting an increase in medium-sized pores contributing to water storage in the soil. To maintain or enhance the beneficial direct and indirect effects of PPMS on crop yields and soil physico-chemical properties, repeated applications of PPMS are required, possibly combined with the use of organic fertilizers, especially during grass ley years.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00894"},"PeriodicalIF":3.1,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 organic carbon to clay ratio in different pedoclimatic and agronomic conditions in northeastern North America","authors":"I. Chahal ,&nbsp;J.P. Amsili ,&nbsp;D.D. Saurette ,&nbsp;J.A. Bower ,&nbsp;A.W. Gillespie ,&nbsp;H.M. van Es ,&nbsp;L.L. Van Eerd","doi":"10.1016/j.geodrs.2024.e00893","DOIUrl":"10.1016/j.geodrs.2024.e00893","url":null,"abstract":"<div><div>Soil organic carbon levels are strongly influenced by pedoclimatic and agronomic environments; hence, establishing universal threshold values for SOC to differentiate soils into healthy and degraded classes is nearly impossible. Previously, SOC:clay ratio thresholds were used to classify soils into categories of “degraded”, “moderate”, “good”, and “very good”. Here, by comparing the percentage of soils under these categories, we assessed the applicability of the SOC:clay ratio as an indicator of soil carbon status on 2249 soil samples collected from Ontario (Canada) and New York (USA). Our results confirmed that the classification of soil based on SOC:clay ratio was highly clay biased, inaccurate, and not a true representation of soil degradation status. Fine-textured soils had a high percentage of degraded soils (73 %) whereas coarse textured soils had a large percentage (62 %) of soils with “very good” soil carbon status. Therefore, we do not recommend using SOC:clay ratio as a metric to assess soil carbon or degradation status. Alternatively, as originally proposed by <span><span>Poeplau and Don (2023)</span></span>, we tested a ratio between actual and expected SOC levels (SOC:SOCexp) as an indicator of soil degradation. Linear regression between SOC and clay content for the pasture systems was used to calculate SOCexp. Our results confirmed that classification of soil based on the SOC:SOCexp ratio was less biased, independent of clay content, and had a positive relationship soil health indicators (aggregate stability, permanganate oxidizable carbon (POXC), pH). Furthermore, we found that SOC:SOCexp better differentiated between soil degradation classes for all the tested soil physical, chemical, and biological properties than SOC:clay. While SOC:SOCexp was found to be a better predictor of soil carbon status than SOC:clay, the SOC:SOCexp thresholds were based on our dataset (a small sample size relative to population) and would not be appropriate across pedo-climatic zones. Overall, we conclude that SOC:clay is not an effective indicator of soil carbon status and SOC:SOCexp might be more useful to assess soil condition and derive baseline soil carbon levels at a regional scale.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00893"},"PeriodicalIF":3.1,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Exploring the physical properties of Australian alpine soils to inform ecosystem restoration","authors":"Sarah Treby ,&nbsp;Susanna Venn ,&nbsp;Samantha Grover","doi":"10.1016/j.geodrs.2024.e00896","DOIUrl":"10.1016/j.geodrs.2024.e00896","url":null,"abstract":"<div><div>Alpine soils are globally threatened and are particularly vulnerable to the impacts of climate change. In Australia, development and grazing put further pressure on alpine ecosystems. Consequently, land managers and restoration practitioners are increasingly interested in understanding how to tailor revegetation approaches to enhance their success in mountain environments. Because of the intrinsic role of soils in plant-water relationships, the aim of this study was to quantify and compare the physical and hydraulic properties of soils in the Australian Alps. We investigated four common soils that occur across the Australian Alps bioregion: peat soils (organosols), alpine humus soils, skeletal mountaintop soils, and disturbed soils (anthroposols). We quantified and compared soil bulk density, particle density, porosity, water content, infiltration, hydraulic conductivity, and wilting point between soils. We found significant differences in soil properties both within and among each soil, highlighting the importance of understanding local edaphic conditions to improve revegetation outcomes. We recommend that direct measurements of plant establishment, growth, and survival are linked with soil physical, chemical, and hydraulic properties in future research, to build upon these findings.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"39 ","pages":"Article e00896"},"PeriodicalIF":3.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}