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Regional Variability of the Effects of Land Use Systems on Soil Properties

Agricultural Sciences in China 2007年第11期6卷 1369-1375页

作者： WU Wen-bin YANG Peng TANG Hua-jun ongaro luca Shibasaki Ryosuke Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences~Key Laboratory of Resources Remote Sensing ＆ Digital Agriculture Ministry of Agriculture Beijing 100081 P.R.China Center for Spatial Information Science University of Tokyo Tokyo 153-8505 Japan Centerfor Climate System Research University of Tokyo Chiba 277-8568 Japan Istituto Agronomico Per L＇Oltremare Florence 4-50131 Italy

In order to explore the regional variability of the effects of land use systems on soil properties, Shouyang County in Shanxi Province and Danling County in Sichuan Province of China were selected as the study areas. Field soil samples of the four land use systems （natural forest, forest plantation, shrubland, and cropland） were collected, respectively, from the two areas. The general statistical tools were used to analyze soil data. The results showed that the influence of land use systems on soil properties was significant. In general, soils in slightly human-disturbed land use systems presented a higher fertility level than those in strongly human-disturbed land use systems in both areas. Furthermore, the impacts of the same land use systems on soil properties showed a distinct regional variability, and even in the same land use system, different farming systems and site management measures （such as irrigation, fertilization, and pesticides） could also lead to the regional heterogeneity in soil properties. The regional variability of land use effects on soil properties reveals the regional variability of the effects of human activities on environmental changes, and could explain the complex relationship between humans and the natural environment in certain ways.

关键词： land use system soil property regional variability human activity

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Arterioureteral fistula:An unusual cause of haematuria 10 years after the implantation of a synthetic iliac-femoral stent

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Asian Journal of Urology 2023年第4期10卷 563-564页

作者： luca ongaro Michele Rizzo Francesco Claps Ottavia Runti Andrea Piasentin Carlo Trombetta Giovanni Liguori Department of Urology Cattinara HospitalASUGIUniversity of TriesteTriesteItaly

Dear Editor,The patient had a history of intermittent self-resolving episodes of gross haematuria and was referred to our department for a massive *** presentation,haemoglobin was 8.6 g/dL and creatinine was 1.37 mg/*** was hemodynamically stable,but suffered an important anemization in the subsequent days requiring multiple blood *** his medical history,it was reported that he had type II diabetes mellitus and the implantation of a right iliac-femoral stent 10 years before.

关键词： iliac femoral transfusion

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土地利用对土壤性质影响的区域差异研究

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中国农业科学 2007年第8期40卷 1697-1702页

作者：吴文斌杨鹏唐华俊 ongaro luca Shibasaki Ryosuke 中国农业科学院农业资源与农业区划研究所/农业部资源遥感与数字农业重点开放实验室 2. 意大利海外农业研究所 3. 东京大学空间情报科学研究中心

【目的】研究探讨土地利用对土壤性质影响的区域差异性。【方法】选择4类土地利用方式(天然林、人工林、灌丛和耕地),分别在山西寿阳县和四川丹棱县野外采集土壤样方进行测定,利用统计分析法研究土地利用对土壤性质影响的区域差异。【... 详细信息

【目的】研究探讨土地利用对土壤性质影响的区域差异性。【方法】选择4类土地利用方式(天然林、人工林、灌丛和耕地),分别在山西寿阳县和四川丹棱县野外采集土壤样方进行测定,利用统计分析法研究土地利用对土壤性质影响的区域差异。【结果】不同土地利用方式对土壤性质的影响差异显著。人类活动干扰小的土地利用方式的土壤有机质、全氮含量和含盐量等普遍高于人类影响较强的土地利用方式。相同的土地利用方式对土壤性质的影响具有空间差异。即便在相同的土地利用方式下,不同的耕作制度和田间管理措施(灌溉、施肥、农药等)也会造成土壤特性的区域异质性。【结论】不同土地利用方式对土壤性质影响的区域差异揭示了人类活动对环境变化影响的区域差异,可以在一定程度上解释"人-地"的复杂性关系,研究结果可为国家在区域土地规划、作物栽培布局和水土保持政策制订等提供科学依据。

关键词：土地利用方式土壤性质区域差异人类活动

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基于尺度推绎方法的生态脆弱区耕作适宜性研究

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中国农学通报 2011年第1期27卷 263-269页

作者：何英彬姚艳敏唐华俊杨鹏王利民邓辉 luca ongaro 农业部资源遥感与数字农业重点实验室呼伦贝尔草原生态系统国家野外科学观测研究站北京100081 中国农业科学院农业资源与农业区划研究所北京100081 意大利海外农业研究所佛罗伦萨意大利50131

以山西寿阳县的玉米和小麦为研究对象,应用尺度推绎方法开展机械化与传统耕作方式下区域粮食作物耕作适宜性的对比研究。结果表明:(1)传统耕作方式下玉米与小麦适宜种植面积皆要大于机械化耕作方式下2种作物适宜种植面积,而无论是机械... 详细信息

以山西寿阳县的玉米和小麦为研究对象,应用尺度推绎方法开展机械化与传统耕作方式下区域粮食作物耕作适宜性的对比研究。结果表明:(1)传统耕作方式下玉米与小麦适宜种植面积皆要大于机械化耕作方式下2种作物适宜种植面积,而无论是机械化种植还是传统耕作小麦适宜种植区面积皆大于玉米种植适宜区;(2)2种作物种植适宜区空间分布呈两极化特征,即高度适宜区与永久非适宜区占据研究区绝大部分区域;(3)2种粮食作物高度种植适宜区基本集中在寿阳县北部黄土高原的塬、沟地貌区及坡度较小的山区。建议在机械化种植与传统耕作方式下皆是中、高度种植适宜区域采取机械化种植方式,而在仅适宜传统耕作的种植适宜区采取传统方式耕作。

关键词：土地适宜性机械化传统耕作尺度推绎土地单元

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Land Suitability Evaluation of Food Crops in Vulnerably Ecological Area Based Upscalin Method

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Agricultural Science & Technology 2009年第6期10卷 168-174页

作者：何英彬 luca ongaro 王毅敏农业部资源遥感与数字农业重点开放实验室北京100081 呼伦贝尔草原生态系统国家野外科学观测研究站北京100081 中国农业科学院农业资源与农业区划研究所北京100081 意大利海外农业研究所佛罗伦萨50131 山西农业遥感中心太原030001

In order to provide some preliminary recommendations for the sustainable use and management of croplands, land suitability evaluation for crops was carried out in Shouyang County which partly locates on the Loess Plateau suffering severe soil and water erosion and is characterized by ecological vulnerability and semi-arid climate. Here, land suitability for 4 local crops of maize, wheat, sorghum and millet under 2 cultivation senarios of tradition and mechanization was evaluated by a upscaling approach. The upscaling was implemented in a land form hierarchy which was composed of land unit, land facet and land site at 3 spatial levels. The IAO land suitability evaluation model for crops was revised by applying a meteorological revision index. Rresults showed that a polarized phenomenon occurred, which means that the most suitable class （S1） and the most unsuitable class （N2） were predominant in acreage percentage for all the 4 crops. Maize, millet and wheat were relatively more adaptive to be grown and should be ploughed in the traditional mode. Hence, future cropland use policy should pay more attention to the conversion of arable land to forestland and grassland in unsuitable areas and to more investment for agricultural production in suitable regions, and it is necessary to balance the relationship between the livelihood of local farmers and environmental protection to maintain a healthy and stable ecosystem.

关键词： Land facet Land site Land unit

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Estimation of the effective properties of two-dimensional cellular materials:a review

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Theoretical & Applied Mechanics Letters 2018年第4期8卷 209-230,298页

作者： Federica ongaro School of Engineering and Materials Science Queen Mary University of LondonLondonUK

In a vast number of engineering fields like medicine,aerospace or robotics,materials are required to meet unusual performances that simple homogeneous materials are often not able to ***,many efforts are currently devoted to develop future generations of materials with enhanced properties and unusual *** many instances,biological systems served as a source of inspiration,as in the case of cellular *** observed in nature,cellular materials offer useful combinations of structural properties and low weight,yielding the possibility of coexistence of what used to be antagonistic physical properties within a single *** to their peculiar characteristics,they are very promising for engineering applications in a variety of industries including aerospace,automotive,marine and ***,their use is conditional upon the development of appropriate constitutive models for revealing the complex relations between the microstructure's parameters and the macroscopic *** this point of view,a great variety of analytical and numerical techniques have been proposed and exhaustively discussed in recent *** contributions,suggesting different assumptions and techniques are critically presented in this review paper.

关键词： Cellular materials Effective properties Computational homogenization Analytical modelling

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Interactions between Axillary Branches of Arabidopsis

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Molecular Plant 2008年第2期1卷 388-400页

作者： Veronica ongaro Katherine Bainbridge Lisa Williamson Ottoline Leyser Department of Biology University of York PO Box 373--Area 11York YO10 5YW UK Present address: Institute of Plant Sciences University of Bern CH-3013 Bern Switzerland

Studies of apical dominance have benefited greatly from two-branch assays in pea and bean, in which the shoot system is trimmed back to leave only two active cotyledonary axillary branches. In these two-branch shoots, a large body of evidence shows that one actively growing branch is able to inhibit the growth of the other, prompting studies on the nature of the inhibitory signals, which are still poorly understood. Here, we describe the establishment of two-branch assays in Arabidopsis, using consecutive branches on the bolting stem. As with the classical studies in pea and bean, these consecutive branches are able to inhibit one another＇s growth. Not only can the upper branch inhibit the lower branch, but also the lower branch can inhibit the upper branch, illustrating the bi-directional action of the inhibitory signals. Using mutants, we show that the inhibition is partially dependent on the MAX pathway and that while the inhibition is clearly transmitted across the stem from the active to the inhibited branch, the vascular connectivity of the two branches is weak, and the MAX pathway is capable of acting unilaterally in the stem.

关键词： shoot branching auxin MAX vascularization.

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Experimental measurements and CFD modelling of hydroxyapatite scaffolds in perfusion bioreactors for bone regeneration

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Regenerative Biomaterials 2023年第1期10卷 411-422页

作者： Alessandro d’Adamo Elisabetta Salerno Giuseppe Corda Claudio ongaro Barbara Zardin Andrea Ruffini Giulia Orlandi Jessika Bertacchini Diego Angeli Dipartimento di Ingegneria Enzo Ferrari Universita`degli Studi di Modena e Reggio EmiliaModena 41125Italy Centro Interdipartimentale per la Ricerca Applicata e i Servizi nella Meccanica Avanzata e nella Motoristica InterMech-MO.RE Piazzale Europa1Reggio Emilia RE 42124Italy Department of Sciences and Methods for Engineering University of Modena and Reggio EmiliaReggio Emilia 42122Italy Institute of Science and Technology for Ceramics(ISTEC) National Research Council(CNR)Faenza 48018Italy Department of Surgery MedicineDentistry and Morphological Sciences with Interest in TransplantOncology and Regenerative MedicineUniversity of Modena and Reggio EmiliaModena 41125Italy Istituto di Genetica Molecolare“Luigi luca Cavalli-Sforza” Consiglio Nazionale della Ricerca(IGM-CNR)Bologna 40136Italy

In the field of bone tissue engineering,particular interest is devoted to the development of 3D cultures to study bone cell proliferation under conditions similar to in vivo ones,*** artificially producing mechanical stresses promoting a biological response(mechanotransduction).Of particular relevance in this context are the effects generated by the flow shear stress,which governs the nutrients delivery rate to the growing cells and which can be controlled in perfusion ***,the introduction of 3D scaffolds complicates the direct measurement of the generated shear stress on the adhered cells inside the matrix,thus jeopardizing the potential of using multi-dimensional *** this study,an anisotropic hydroxyapatite-based set of scaffolds is considered as a 3D biomimetic support for bone cells deposition and *** of sample-specific flow resistance are carried out using a perfusion system,accompanied by a visual characterization of the material *** the obtained results,a subset of three samples is reproduced using 3D-Computational Fluid Dynamics(CFD)techniques and the models are validated by virtually replicating the flow resistance *** a good agreement is found,the analysis of flow-induced shear stress on the inner B-HA structure is carried out based on simulation ***,a statistical analysis leads to a simplified expression to correlate the flow resistance with the entity and extensions of wall shear stress inside the *** study applies CFD to overcome the limitations of experiments,allowing for an advancement in multi-dimensional cell cultures by elucidating the flow conditions in 3D reactors.

关键词： experimental CFD modellings hydroxyapatites scaffolds biomaterial cell interaction bone regenerative mechanism

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Recent advances in gastrointestinal cancers

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World Journal of Gastroenterology 2021年第28期27卷 4493-4503页

作者： Natacha Bordry Christoforos Astaras Marie ongaro Nicolas Goossens Jean Louis Frossard Thibaud Koessler Department of Oncology University Hospital of Geneva(HUG)Genève 1205Switzerland Divison of Gastroenterology and Hepatology University Hospital of Geneva(HUG)Genève 1205Switzerland

Gastrointestinal cancers occur in a total of eight different locations,each of them with a different standard of *** article is not an exhaustive review of what has been published in *** have concentrated on the thirteen phase III randomized studies that are *** these studies are oral presentations which have been given in one of the four major oncology congresses,namely American Society of Clinical Oncology(ASCO),ASCO gastrointestinal(GI),European Society of Medical Oncology(ESMO)and *** provide a concise view of these major trials and their main outcomes,and put these results into context.

关键词： Practice changing trials Immunotherapy Gastrointestinal cancers Gastrointestinal Gastric cancer

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把哲学引入公共行政:一项研究议程

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公共行政评论 2020年第4期13卷 58-68,206页

作者： [英]Edoardo ongaro 丁淑娟(译) 英国开放大学欧洲公共行政联合会 Public Policy and Administration期刊东莞理工学院法律与社会工作学院(知识产权学院)

一、引言与逻辑基础本文的核心观点是哲学知识对深入理解公共治理、公共行政体制和公共服务管理重要议题具有积极显著的贡献。将哲学知识引入公共行政(这并非意味从"象牙塔"退却)具有重大现实意义。本文旨在系统地勾勒和评述将哲学思想... 详细信息

一、引言与逻辑基础本文的核心观点是哲学知识对深入理解公共治理、公共行政体制和公共服务管理重要议题具有积极显著的贡献。将哲学知识引入公共行政(这并非意味从"象牙塔"退却)具有重大现实意义。本文旨在系统地勾勒和评述将哲学思想引入公共行政领域的研究轮廓和进展,并介绍四种相互补充的研究途径。为论证将哲学思想引入公共行政的重要性,我们以公共治理安排的"合法性"为例。

关键词：公共行政公共治理公共服务管理哲学知识研究议程哲学思想核心观点逻辑基础

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