Soil security最新文献

{"title":"Reference site selection based on state-and-transition models for soil health gap evaluation within cropland reference ecological units","authors":"Saurav Das ,&nbsp;Aaron Hird ,&nbsp;Bijesh Maharjan ,&nbsp;Mitchell Stephenson ,&nbsp;Lithma Kariyawasam","doi":"10.1016/j.soisec.2024.100142","DOIUrl":"https://doi.org/10.1016/j.soisec.2024.100142","url":null,"abstract":"<div><p>Comparative soil health studies are critical in soil conservation and gauging the success of different management practices in soil health improvement. A primary challenge in these studies is the selection of a consistent natural reference site. Current choices vary widely, from minimally disturbed areas to pristine prairies. This methodological paper underscores the need for deliberate and thoughtful reference site selection for benchmark soil properties. Utilizing the State &amp;Transition models, the study introduces a framework for this selection, drawing upon the ecological site (ES) and reference plant communities detailed in an ecological site description (ESD) within a respective Major Land Resource Area (MLRA). This study advocates for a localized classification within the framework of the Cropland Reference Ecological Unit (CREU), emphasizing the significance of local precipitation and soil data to ensure unbiased comparisons. Soil samples from eastern (MLRA 106) and western (MLRA 67A) Nebraska were collected, representing distinct pedogenetic and climatic differences. Analysis of soil organic matter between MLRAs displayed substantial variations, suggesting potential biases and complexities in soil health gap calculations when using reference sites and croplands not in the same MLRA, soil types (texture class), or precipitation zones. However, refining the comparisons by delineating the MLRA, soil, and precipitation zones within the framework of CREU yielded more consistent and realistic comparative data. Integrating the MLRA and ES, complemented by granular soil and precipitation data, provides a robust method for establishing soil health benchmark data.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"16 ","pages":"Article 100142"},"PeriodicalIF":0.0,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006224000169/pdfft?md5=1bb1010edca721ba07e29abc29771be6&pid=1-s2.0-S2667006224000169-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140632611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Valuing and integrating soil roles in assessing the capital dimension of soil security: An Australian case study","authors":"Nicolas Francos,&nbsp;Alex B. McBratney,&nbsp;Damien J. Field,&nbsp;Budiman Minasny,&nbsp;Julio C. Pachon,&nbsp;José Padarian,&nbsp;Anilkumar Hunakunti,&nbsp;Wartini Ng,&nbsp;Sandra J. Evangelista,&nbsp;Thomas O'Donoghue","doi":"10.1016/j.soisec.2024.100141","DOIUrl":"https://doi.org/10.1016/j.soisec.2024.100141","url":null,"abstract":"<div><p>The crucial role of soil in global food production and its multifaceted contributions to ecosystem services underscore the need for a comprehensive evaluation framework. This study presents a novel approach to soil evaluation by integrating the assessment of soil functions, services, and threats into a unified metric which quantifies the capital dimension which is termed \"soil management capital\". To achieve this, we focused on three key roles: a threat, evaluated by the pH regulation costs, factoring in different buffering capacities and liming/sulphuring treatments to attain an optimal reference pH, a function, representing soil's role as a reservoir and regulator of nutrients; and a service, considering available water holding capacity (AWC) for water security. Integrating these activities culminates in a soil capital metric, providing a comprehensive understanding of the soil's economic value in US$/ha units on a pixel-by-pixel basis across Australia. To achieve this, we analysed spatial information from the Soil and Landscape Grid of Australia (SLGA) with Google Earth Engine (GEE). Our study generated detailed maps illustrating pH regulation costs, OC, nutrients (N, P, K), and AWC across Australia. The integration of these roles revealed regions of large soil capital in the Australian eastern coast and Tasmania.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"16 ","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006224000157/pdfft?md5=356d26aa6c3b080150ebec3ae03622d9&pid=1-s2.0-S2667006224000157-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140632612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Foreword of the second special issue on “Soil Governance”","authors":"Natalia Rodríguez Eugenio ,&nbsp;Harald Ginzky ,&nbsp;Irene L. Heuser ,&nbsp;Ian Hannam ,&nbsp;Oliver C Ruppel ,&nbsp;Pamela Towela Sambo","doi":"10.1016/j.soisec.2024.100138","DOIUrl":"10.1016/j.soisec.2024.100138","url":null,"abstract":"<div><p>This second special issue is an expression of what ten years ago nobody would have thought being possible: Soils have become what they deserve to be, a relevant topic on the global, regional, and national agendas of sustainability policies. Soils are now understood as a core precondition to achieve inter alia climate neutrality, an effective climate adaptation, biodiversity conservation, and food security. The second special issue consists of 17 manuscripts dealing with various aspects of soil governance, from integrated soil and water management to the application of the polluter pays principle in different countries. New national and regional developments in soil legislation are also presented, with examples from China, Germany, India, Malawi, New Zealand, Uzbekistan or Wales, as well as an analysis of soil-related court rulings.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"16 ","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006224000121/pdfft?md5=fe34de93f64021aa00be386f1d798422&pid=1-s2.0-S2667006224000121-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140768275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Keystone rhizospheric diazotrophs may promote the pioneer plant growth in mine tailings","authors":"Yongbin Li ,&nbsp;Rui Yang ,&nbsp;Ajmal Khan ,&nbsp;Mohsen Soleimani ,&nbsp;Lifang Guo ,&nbsp;Xiaoxu Sun ,&nbsp;Baoqin Li ,&nbsp;Huaqing Liu ,&nbsp;Shenghua Jin ,&nbsp;Weimin Sun","doi":"10.1016/j.soisec.2024.100140","DOIUrl":"https://doi.org/10.1016/j.soisec.2024.100140","url":null,"abstract":"<div><p>Nitrogen (N) shortage often hinders the bioremediation of mining-generated tailings. For pioneer plants living in mine tailings, biological N fixation (BNF) is an essential source of N. However, the diazotrophs in the rhizosphere of pioneer plants are rarely investigated. In this study, the pioneer plant <em>Miscanthus sinensis</em> samples were collected from four different tailings across Southwest China, and the 16S rRNA amplicon sequencing, multivariable statistical tools, ¹⁵N₂ DNA-SIP, metagenomic-binning, cultural screening methods, and pot experiment were applied to analyze the roles of diazotrophs in rhizosphere of <em>M. sinensis</em>. Firstly, genera <em>Stenotrophomonas</em> and <em>Pseudomonas</em> were identified as keystone taxa in the rhizosphere of <em>M. sinensis</em> cultivated in the tailings. Furthermore, ¹⁵N₂ DNA-SIP demonstrated that <em>Stenotrophomonas</em> and <em>Pseudomonas</em> were the rhizospheric diazotrophs. The metagenome-assembled genomes of <em>Stenotrophomonas</em> and <em>Pseudomonas</em> contained some genes involved in BNF, plant growth promotion, and metal(loid) resistance (As, Sb, Ni, Co, Zn, Mn, Cu, and Cd). Subsequent diazotrophic isolation was conducted, and two diazotrophic strains (<em>Pseudomonas</em> sp. R21 (nitrogenase activities, 1,161.9 nmol C₂H₄ mg⁻¹ protein <em>h</em>⁻¹) and <em>Stenotrophomonas</em> sp. R30 (1,890.2 nmol C₂H₄ mg⁻¹ protein h⁻¹)) were isolated from the rhizosphere soil of <em>M. sinensis</em>. Pot assay demonstrated that inoculation with <em>Pseudomonas</em> sp. R21 and <em>Stenotrophomonas</em> sp. R30 could promote plant growth, N content, and metal(loid) (arsenic and antimony) accumulation, which confirmed nitrogenase activity and plant growth-promoting ability of the two identified keystone taxa, highlighting the exciting opportunities of applying some keystone rhizospheric diazotrophs in the pioneer plants through microbiome manipulation for the bioremediation of tailings.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"16 ","pages":"Article 100140"},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006224000145/pdfft?md5=32064026f5a4c7572fbb3ceccc8097a7&pid=1-s2.0-S2667006224000145-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140536297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water dispersible clay and micro-structure of soils from coastal plain sands, shale and false-bedded sandstones","authors":"B.E. Udom ,&nbsp;M.E. Ikiriko ,&nbsp;A.J. Gogo ,&nbsp;A.A. Dickson","doi":"10.1016/j.soisec.2024.100137","DOIUrl":"https://doi.org/10.1016/j.soisec.2024.100137","url":null,"abstract":"<div><p>Information regarding water-dispersible clays in soils of contrasting textures is needed to evaluate soil qualities that influence susceptibility of soils to slaking in water. Water-dispersible clays (WDCs), plastic limits, and basic properties of soils on Coastal Plain Sands (CPS), Shale (Shale), and False-Bedded Sandstones in southern Nigeria were quantified for use in evaluating management options of some tropical soils. Results revealed that WDCs, micro-aggregate indices, and plastic limits differed significantly amongst the parent materials. At 0–15 cm depth, clay content was 29.7%, 11.2 and 3.8%, for Shale, CPS and False-Bedded sandstones, respectively, indicating significant high clay content in Shale. The highest SOC of 29.8 g kg⁻¹., and very slow saturated hydraulic conductivity (K_sat) of 6.33 cm h⁻¹ were found in Shale. False-Bedded Sandstone had the lowest SOC content of 7.7 g kg⁻¹ and highest K_sat value of 31.10 cm h⁻¹ at 0–15 cm topsoil. Micro-aggregate stability indices measured by aggregated silt+clay (ASC) and clay flocculating index (CFI) were significant in CPS at 0–15 cm, whereas water-dispersible clay (WDC) was significantly higher (<em>p</em> &lt; 0.05) in Shale at 8.32%, compared to very low value of 0.76% in False-Bedded Sandstone. Plastic limit (PL) of 16.5%, was significantly higher (<em>p</em> &lt; 0.05) in Shale, indicating its high sensitivity to mechanical deformation when wet. There was a significant positive correlation between clay content and WDC (<em>r</em> = 0.815, <em>p</em> &lt; 0.01), indicating the positive influence of clay content on WDCs and micro-structural indices, and the tendencies for quick degeneration of the soils.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"16 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266700622400011X/pdfft?md5=49b47bb5e70b5e131be6c602576aee95&pid=1-s2.0-S266700622400011X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140187289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implications of pesticide use regulation on soil sustainability in Uganda","authors":"Hadijah Yahyah ,&nbsp;Patricia Kameri-Mbote ,&nbsp;Robert Kibugi","doi":"10.1016/j.soisec.2024.100133","DOIUrl":"10.1016/j.soisec.2024.100133","url":null,"abstract":"<div><p>Reducing pesticide use has become a goal shared by several countries, Uganda inclusive and a major issue in public policies since the adverse impacts of pesticides on environmental media such as soil and on human health have been clearly demonstrated. The main environmental concerns related to pesticides are soil, water pollution and damage to non-target organisms including plants, birds, wildlife, fish and crops. On one hand, pesticides can control pests and diseases, and increase agricultural productivity, which is essential for food security and economic development. However, the positive effects have proven to be short-lived. Moreover, the indiscriminate and injudicious use of pesticides without proper regulation and awareness, more so by small-scale farmers, can lead to detrimental effects on soil health and long-term sustainability. The challenge is exacerbated by pesticides that can persist in the environment and accumulate in the soil over time, leading to soil degradation. Accordingly, regulation of pesticide use then becomes more critical if the adverse effects of pesticide use are to be mitigated. Indeed, Uganda recognizes the importance of sustainable agricultural practices and the need to regulate pesticide use to protect soil health and ensure long-term agricultural productivity. This is manifested in the existing regulatory framework on pesticide use, although challenges and threats to soil sustainability still abound especially from the highly fragmented and sectoral-based approaches. This paper examines the implications of pesticide use regulation on soil sustainability in Uganda, a country heavily reliant on agriculture for food security and economic growth. Suggestions are proffered on some interventions that align with soil sustainability.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"16 ","pages":"Article 100133"},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006224000078/pdfft?md5=8499b24704d7ad88cfbd39d218930b1d&pid=1-s2.0-S2667006224000078-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Impact of Conservation Tillage Intensities on Mean Yields and Yield Risk","authors":"Ayesha Cooray ,&nbsp;Roderick M. Rejesus ,&nbsp;Serkan Aglasan ,&nbsp;Zheng Li ,&nbsp;Alex Woodley","doi":"10.1016/j.soisec.2023.100126","DOIUrl":"https://doi.org/10.1016/j.soisec.2023.100126","url":null,"abstract":"<div><p>Understanding the productivity and production risk effects of conservation tillage practices are important so that growers can make better decisions about tillage systems appropriate for their farm operations. This study investigates the mean yield and yield risk effects of conservation tillage practices with varying levels of tillage intensity and timing. Long-term field trial data for corn (<em>Zea mays, L.</em>) and soybeans (<em>Glycine max, L. Merr.</em>) in the North Carolina Piedmont, together with moment-based regression models, were used to achieve the objective of the study. Our empirical analysis suggests that conservation tillage treatments (with lower tillage intensities and higher residue levels) consistently have higher mean yields than conventional tillage practices in the sandy loam soils of the North Carolina Piedmont. However, we find that conservation tillage practices with lower intensities (and higher residue levels) do not generally have a consistent statistically significant risk reducing effect based on the higher-order moments of the yield distribution (e.g., variance, skewness, and kurtosis). This indicates that conservation tillage does not consistently result in statistically lower production risk relative to conventional tillage methods.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"14 ","pages":"Article 100126"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006223000436/pdfft?md5=911459973acbe91b36203528e701eb68&pid=1-s2.0-S2667006223000436-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140209020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Define soil","authors":"Alex.B. McBratney ,&nbsp;Alfred E. Hartemink","doi":"10.1016/j.soisec.2024.100135","DOIUrl":"https://doi.org/10.1016/j.soisec.2024.100135","url":null,"abstract":"<div><p>Two new brief definitions of soil are proposed to improve soil understanding among the general populous and to enhance soil connectivity. One definition is “The layered material at the earth's surface, which has resulted from chemical and biological processes and physical organisation of minerals and organic matter, and which supports terrestrial ecosystems and humanity.”</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"14 ","pages":"Article 100135"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006224000091/pdfft?md5=ad1b1f49a234849efd51f9de13b0161a&pid=1-s2.0-S2667006224000091-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140113462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “The impact of conservation tillage intensities on mean yields and yield risk” [Soil Secur. 12 (September 2023) 100096]","authors":"Ayesha Cooray ,&nbsp;Roderick M. Rejesus ,&nbsp;Serkan Aglasan ,&nbsp;Zheng Li ,&nbsp;Alex Woodley","doi":"10.1016/j.soisec.2023.100125","DOIUrl":"10.1016/j.soisec.2023.100125","url":null,"abstract":"","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"14 ","pages":"Article 100125"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667006223000424/pdfft?md5=20c36e2cebe68b3e883095472e4ca465&pid=1-s2.0-S2667006223000424-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139191177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Land degradation neutrality and the weak avoid, reduce and reverse priorities in Malawi's soil laws","authors":"Tupalishe Mulwafu ,&nbsp;Garton Kamchedzera","doi":"10.1016/j.soisec.2024.100134","DOIUrl":"10.1016/j.soisec.2024.100134","url":null,"abstract":"<div><p>This article concludes that the pertinent Malawi soil laws on land degradation neutrality (LDN) have weak Avoid, Reduce, and Reverse priorities. The article uses Roscoe Pound's theory of social engineering to underline ecological interdependence as an overriding interest in resolving the interests of people and nature. Using a doctrinal and comparative approach, the article identifies provisions in Uganda and Germany's soil-dedicated legal frameworks that incorporate the Avoid, Reduce, and Reverse priorities. The analysis leads to the finding that unlike in Germany and Uganda, there is a reticent consideration of soil conservation in Malawi's soil-related legislation to get soil users to Avoid, Reduce and Reverse. This is because Malawi's approach to soil conservation is human-centered; lacking an ecocentric and deep ecology approach to inform the legislation.</p></div>","PeriodicalId":74839,"journal":{"name":"Soil security","volume":"14 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266700622400008X/pdfft?md5=6abc56e8e6b51aace20a1d79813d8ab5&pid=1-s2.0-S266700622400008X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140088653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}