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Duration and intensity of rainfall events with the same erosivity change sediment yield and runoff rates

International Soil and Water Conservation Research 2021年第1期9卷 69-75页

作者： Wilk Sampaio de Almeida Steffen Seitz Luiz Fernando Coutinho de Oliveira daniel fonseca de carvalho Agronomy department Federal Institute of EducationScience and Technology of RondôniaCampus AriquemesRO 257km 13AriquemesRO76870-000Brazil department of Geosciences University of TübingenTübingenGermany Federal University of Lavras Department of Water Resources and Sanitation37200-000LavrasMGBrazil Federal Rural University of Rio de Janeiro Engineering DepartmentBR 465km 723897-000SeropédicaRJBrazil

The effect of different rainfall patterns on surface runoff,infiltration and thus soil losses and sediment concentrations are still in the focus of current *** most simulated rainfall experiments,pre-cipitation is applied at a fixed intensity for a fixed ***,the impact of rainfall patterns on soil erosion processes may be different varying the rainfall duration and intensity that produces an event with similar rainfall erosivity ***-five rainfall events were applied on micro-scale runoff plots in a soil covered with corn straw to evaluate the sediment yield and runoff *** different rainfall types were composed by association of duration(Dur)and intensity(IP)with the same erosivity *** Dur varied from 38 to 106 min and the IP varied from 75.0 to 44.6 mm h^(-1).The sediment yield varied from 1.89±1.26 g m^(-2) to 4.02±2.66 g m^(-2) and runoff ranged from 16.9±8.74 mm to 32.63±10.67 mm with highest rates occurring with high intensity and low *** highest rainfall intensity provides the maximum sediment yield(0.138 g m^(-2) min^(-1))and runoff rates(0.87 mm min^(-1)).The time to start surface runoff varied from 14 to 19.2 min and it was longer in treatments with longer durations and low precipitation *** difference was found in the amount of sediments applying rain with the same erosivity and different associations of duration and ***,the intensity and duration of the rain,with the same erosivity,altered the amount and time of *** rainfall experiments with con-stant intensity and fixed time,the erosion rates depend on the duration of the applied ***,the results of this study can contribute to the development of new perspectives in the design of water erosion experiments with simulated rain considering the duration,intensity and also the association of these variables to produce rainfall that delivery the same soil erosion capacity.

关键词： Simulated rainfall Rainfall pattern Water erosion Soil loss

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Soil loss and runoff obtained with customized precipitation patterns simulated by InfiAsper

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International Soil and Water Conservation Research 2022年第3期10卷 407-413页

作者： daniel fonseca de carvalho Pietro Menezes Sanchez Macedo Marinaldo Ferreira Pinto Wilk Sampaio de Almeida Nivaldo Schultz department of Engineering Institute of TechnologyFederal Rural University of Rio de JaneiroSeropedicaRio de JaneiroBrazil Postgraduate Program in Agronomy-Soil Sciences Federal Rural University of Rio de JaneiroSeropedicaRio de JaneiroBrazil Agronomy department Federal Institute of EducationScience and Technology of RondoniaCampus AriquemesRO 257Km 13AriquemesRO76870-000Brazil department of Soil Science Institute of AgronomyFederal Rural University of Rio de JaneiroSeropedicaRJBrazil

Applying constant precipitation intensity,which does not occur in natural events,is one of the main limitations concerning rainfall simulators in soil erosion *** present work evaluated the InfiAsper rainfall simulator operating with a new control panel to program rainfalls with different precipitation intensities(PI).Infiltration rates and soil and water losses were evaluated in a Distrophic Acrisol(clay loam texture)with simulated rainfalls of 30 mm and duration of 40 min,considering advanced(AD),intermediate(IN),delayed(de),and inverted intermediate(II)patterns,all with PI peaks of 110 mm h^(-1),and a constant(CT)*** experimental design was in randomized blocks with five treatments(rainfall patterns)and experimental units measuring 2.5×2.5 *** simulator worked satisfactorily,applying the rainfall according to the preconfigured *** simulated rainfall with the CT and II patterns did not promote runoff nor soil *** and runoff rates varied according to the applied rainfall pattern,reaching 97.8 and 27.3 mm h^(-1)(AD),82.1 and 39.5 mm h^(-1)(IN),and 76.2 and 49.7 mm h^(-1)(de),*** loss and surface runoff totaled each 4.77 g m^(-2)and 3.9 mm(AD),6.70 g m^(-2)and 6.8 mm(IN),and 6.03 g m^(-2)and 7.0 mm(de).The InfiAsper simulator modified enables varying precipitation intensity besides obtaining satisfactory results in the field and information consistent with the expected characteristics of natural rainfall *** the intermediate and delayed rainfall patterns,soil and water losses are higher than in the advanced.

关键词： Water erosion Rainfall simulator Precipitation intensity

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Simulated rainfall in Brazil:An alternative for assesment of soil surface processes and an opportunity for technological development

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International Soil and Water Conservation Research 2024年第1期12卷 29-42页

作者： Camila Calazans da Silva Luz Wilk Sampaio de Almeida Adilson Pacheco de Souza Nivaldo Schultz Jamil Alexandre Ayach Anache daniel fonseca de carvalho Postgraduate Program in Agronomy-Soil Sciences Federal Rural University of Rio de JaneiroSeropédicaRJBrazil Agronomy department Federal Institute of EducationScience and Technology of RondôniaAriquemesROBrazil Federal University of Mato Grosso SinopMTBrazil Federal Rural University of Rio de Janeiro SeropédicaRJBrazil Federal University of Mato Grosso do Sul Campo GrandeMSBrazil

Rainfall simulators(RS)have been used,above all,to evaluate hydrological processes related to soil water infiltration,surface runoff and soil *** allow repeatability of rain application with different precipitation intensities in field and/or laboratory conditions and should produce events with physical characteristics similar to natural *** this manuscript,we carried out a bibliometric and scientometric analysis of studies with simulated rainfall in Brazil to assess the temporal evolution of publications,the main topics addressed and the degree of technological development of the *** searched for the terms“rainfall simulator”OR“simulated rainfall”AND“Brazil”in the Scopus,Web of Science,SciELO and Google Scholar *** found 143 articles published in the last 37 years(1985-2022).Our findings indicate that the main research areas covered in papers are soil erosion(57.34%),soil water infiltration(24.47%),nutrient losses(9.8%)and RS development and calibration/assessment(8.39%).In recent years,the number of published papers in international high-impact factor journals has *** of the papers(49.65%)refer to studies carried out by institutions located in the south and southeast regions of ***,there is a large gap of studies on simulated rainfall in other regions of Brazil,where important biomes such as the Cerrado,Amazon,Caatinga,and their transitions are *** study informs research priorities on soil erosion under simulated rainfall and provides a bibliographic database that can assist in more detailed future analyses.

关键词： Rainfall simulator Soil and water losses Soil water infiltration Bibliometrics Scientific review

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New approach for obtaining the C-factor of RUSLE considering the seasonal effect of rainfalls on vegetation cover

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International Soil and Water Conservation Research 2021年第2期9卷 207-216页

作者： Pietro Menezes Sanchez Macedo Paulo Tarso Sanches Oliveira Mauro Antonio Homem Antunes Valdemir Lucio Durigon Elaine Cristina Cardoso Fidalgo daniel fonseca de carvalho Agronomy-Soil Science Post Graduate Program Federal Rural University of Rio de JaneiroBR 465km 723897-000SeropedicaRJBrazil Federal University of Mato Grosso do Sul CxP.549Campo GrandeMS79070-900Brazil Federal Rural University of Rio de Janeiro Engineering DepartmentBR 465km 723897-000SeropedicaRJBrazil Technical College of the Federal Rural University of Rio de Janeiro BR 465km 723897-000SeropedicaRJBrazil National Center for Soil Research Brazilian Agricultural Research CorporationRio de JaneiroBrazil

We present a new approach for calculating the C-factor of RUSLE considering the effect of low-reflectance vegetation cover areas on the reduction of the effects on erosion caused by rainfall *** this,we propose the coefficients Cr2(rescaled 2)and C-PC(Precipitation Correction),which represent the Cfactor,and an adaptation in NDVI calculation,according to the seasonality of precipitation(NDVI-PC).The Cr2 factor is used when there is no seasonal effect of rainfall on vegetation,while the C-PC factor is calculated for localities under the influence of seasonality,from *** proposed approaches were tested using different satellites images in the Palmares-Ribeir~ao do Saco watershed,Rio de Janeiro,*** values of Cr2 and C-PC factors were compared to the Cr factor(rescaled)and to mean values from the literature for different land *** results indicated that the Cr2 factor represents an improvement in accuracy in relation to Cr by considering specific values of the studied area to normalize the data without ***,the C-PC factor is able to simulate the effect of seasonality,providing more realistics values of soil loss by the RUSLE as a function of the proportion of area affected by the rainfall seasonality obtained from *** conclude that both Cr2 and C-PC factors generate values similar of the C-factor observed in the literature,and therefore are able to provide better soil loss estimation than that using the Cr factor.

关键词： Soil erosion Land cover Soil use and management factor Vegetation seasonality NDVI

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Co-inoculation of selected nodule endophytic rhizobacterial strains with Rhizobium tropici promotes plant growth and controls damping off in common bean

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Pedosphere 2020年第1期30卷 98-108页

作者： Linnajara de VASCONCELOS MARTINS FERREIRA Fernanda de carvalho Júlia fonseca COLOMBO ANDRAde Damiany PáDUA OLIVEIRA Flávio Henrique VASCONCELOS de MEdeIROS Fatima Maria de SOUZA MOREIRA Sector of Biology Microbiology and Biological ProcessesDepartment of Soil ScienceUniversidade Federal de LavrasLavras C.P.3037-37200-000(Brazil) Instituto Federal do Pará/IFPA Campus MarabáRuralMarabáC.P.041-68508-979(Brazil) Universidade Federal de Lavras Department of PhytopathologyLavras C.P.3037-37200-000(Brazil)

Production of common bean(Phaseolus vulgaris)is limited by the occurrence of damping off(rhizoctoniosis),which is caused by the fungus Rhizoctonia ***,the co-inoculation of plant growth-promoting rhizobacteria(PGPR)involved in biological control along with diatomic nitrogen(N2)-fixing rhizobia can enhance N nutrition and increase *** this context,finding microorganisms with synergistic effects that perform these two roles is of fundamental importance to ensure adequate yield *** aim of this study was to evaluate the effects of co-inoculation of nodule endophytic strains of the genera Bacillus,Paenibacillus,Burkholderia,and Pseudomonas with Rhizobium tropici CIAT 899,an N2-fixing rhizobial strain,on the biocontrol of damping off and growth promotion in common bean *** experiments were conducted under axenic conditions using the common bean cultivar Pé*** first experiment evaluated the potential of the 14 rhizobacterial strains,which were inoculated alone or in combination with CIAT 899,for the control of *** second experiment evaluated the ability of these 14 rhizobacterial strains to promote plant growth with three manners of N supply:co-inoculation with CIAT 899 at low mineral N supply(5.25 mg N mL^-1),low mineral N supply(5.25 mg N mL^-1),and high mineral N supply(52.5 mg N mL^-1).The use of rhizobacteria combined with rhizobia contributed in a synergistic manner to the promotion of growth and the control of damping off in the common ***-inoculation of the strains UFLA 02-281/03-18(Pseudomonas sp.),UFLA 02-286(Bacillus sp.),and UFLA 04-227(Burkholderia fungorum)together with CIAT 899 effectively controlled damping *** the common bean,mineral N supply can be replaced by the co-inoculation of CIAT 899 with plant growth-promoting strains UFLA 02-281/02-286/02-290/*** endophytes UFLA02-281/02-286 are promising for co-inoculation with CIAT 899 in the common bean,promoting synergy with rhizobial i

关键词： Bacillus sp. biological control Burkholderia fungorum CIAT 899 Phaseolus vulgaris plant growth-promoting rhizobacteria Pseudomonas sp. Rhizoctonia solani

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Temporal and phenological profiles of open and dense Caatinga using remote sensing:response to precipitation and its irregularities

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Journal of Forestry Research 2021年第3期32卷 1067-1076页

作者： Janisson Batista de Jesus Tatiana Mora Kuplich íkaro daniel de carvalho Barreto Cristiano Niederauer da Rosa Fernando Luis Hillebrand Postgraduate Program in Remote Sensing Federal University of Rio Grande Do SulAv.Bento GoncalvesCEP 91501-970Porto AlegreRio Grande do Sul 9500Brazil National Institute for Space Research(INPE)Southern Regional Centre(CRS) CEP 97105-970Santa MariaRio Grande do SulBrazil Postgraduate Program in Applied Biometrics and Statistics Rural Federal University of PernambucoDom Manuel de Medeiross/nDois IrmaosCEP 52171-900RecifePernambucoBrazil

Caatinga is a typical biome of Brazil's semiarid regions and subject to climate *** is needed on the relation of its features to climate *** study analyzed the infl uence of rainfall and its irregularities in open and dense woody Caatinga *** curves were generated by means of Normalized Difference Vegetation Index(NDVI)time profiles in the Grota do Angico Conservation Unit study area in Sergipe *** data from 2000 to 2018 were collected and phenological curves generated using various estimate methods that produced the following variables:[start of season,end of season,peak of season position,length of season,mean growing season and maximum seasonal].Rainfall showed a standard intra-annual behavior,with inter-annual variations related to irregularities infl uencing Caatinga *** Caatinga vegetation had higher values of NDVI in all periods,even in anomalous years compared to open Caatinga,in addition to having longer leaf coverage over the year,with an anticipated start and a more extended seasonal *** analysis of the rainfall regime made it possible to assess its infl uence on the Caatinga and phenological profiles proved to be fundamental to understand periods of physiological change of open and dense *** results indicate that dense Caatinga maintains physiological activity longer,which may be associated with greater moisture maintenance in a semiarid *** addition,because it has a greater leaf cover for longer periods,the soil may be preserved and maintain its characteristics longer,reducing the effects of *** results may be associated with the type of forest management and conservation in this *** total or partial suppression of individual remnants of Caatinga should be avoided,since the most open areas have lower photosynthetic capacity,affected to a considerable extent from the effects of adverse climatic ***,open Caatinga has a reduced cap

关键词： Semiarid Tropical dry forest NDVI MODIS Phenopix

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Mechanical stimulation devices formechanobiology studies:a market,literature,and patents review

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Bio-design and Manufacturing 2023年第3期6卷 340-371页

作者： F.Melo-fonseca O.carvalho M.Gasik G.Miranda F.S.Silva Center for MicroElectroMechanical Systems University of Minho(CMEMS-UMinho)Campus de Azurém4800-058 GuimarãesPortugal LABBELS–Associate Laboratory BragaGuimarãesPortugal International Iberian Nanotechnology Laboratory(INL) 4715-330 BragaPortugal School of Chemical Engineering Aalto University Foundation00076 EspooFinland Seqvera Ltd. HelsinkiFinland department of Materials and Ceramic Engineering CICECOAveiro Institute of MaterialsUniversity of Aveiro3810-193 AveiroPortugal

Significant advancements in various research and technological fields have contributed to remarkable findings on the physiological dynamics of the human *** closely mimic the complex physiological environment,research has moved from two-dimensional(2D)culture systems to more sophisticated three-dimensional(3D)dynamic *** bioreactors or microfluidic-based culture models,cells are typically seeded on polymeric substrates or incorporated into 3D constructs which are mechanically stimulated to investigate cell response to mechanical stresses,such as tensile or *** review focuses on the working principles of mechanical stimulation devices currently available on the market or custom-built by research groups or protected by patents and highlights the main features still open to *** are the features which could be focused on to perform,in the future,more reliable and accurate mechanobiology studies.

关键词： Biomaterials Polymers Actuators Mechanical stress Mechanotransduction

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Sex and season explain spleen weight variation in the Egyptian mongoose

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Current Zoology 2019年第1期65卷 11-20页

作者： Victor BANdeIRA Emilio Virgos Alexandre AZEVEDO Joao carvalho Monica V. CUNHA Carlos fonseca Dartment of Biology Centro de Estudos do Ambiente e do Mar (CESAM) University of Aveiro Campus Universitario de Santiago Aveiro 3810-193 Portugal departamento de Biologia Geologia Fisica y Qufmica Inorganica Area Biodiversidad y Conservacion Escuela Superior de Ciencias Experimentales y Tecnologia (ESCET) Universidad Rey Juan Carlos c/Tulipan s/n Mostoles Madrid E-28933 Spain Leibniz Institute for Zoo and Wildlife Research Alfred-Kowalke-Straβe 17 Berlin 10315 Germany Instituto de Ciencias Biomedicas Abel Salazar R. Jorge de Viterbo Ferreira 228 Porto 4050-313 Portugal Instituto Nacional de Investigaqao Agraria e Veterinaria (INIAV) IP-National Institute for Agrarian and Veterinary Research Rua dos Lagidos Lugar da Madalena Vairao 4485-655 Portugal cE3c-Centre for Ecology Evolution and Environmental Changes Faculdade de Ciencias Universidade de Lisboa Lisboa 1749-016 Portugal BiolSI-Biosystems & Integrative Sciences Institute Faculdade de Ciencias Universidade de Lisboa Lisboa 1749-016 Portugal Wildlife Ecology & Health group (WE&H) and Servei d'Ecopatologia de Fauna Salvatge (SEFaS) Departament de Medicina i Cirurgia Animals Universitat Autonoma de Barcelona 08193-Bellaterra Barcelona Spain

The Egyptia n mon goose (Herpestes ichneumon Linn aeus, 1758) is a medium-sized car nivore that experienced remarkable geographic expansion over the last 3 decades in the Iberian Peninsula. In this study, we investigated the association of species-related and abiotic factors with spleen weight (as a proxy for immunocompete nee) in the species. We assessed the relationship of body con dition, sex, age, seas on, and envir onmental conditi ons with splee n weight established for 508 hunted specimens. Our results indicate that the effects of sex and season outweigh those of all other variables, including body condition. Spleen weight is higher in males than in females, and heavier spleens are more likely to be found in spring, coinciding with the highest period of investment in reproduction due to mating, gestation, birth, and lactation. Coupled with the absence of an effect of body condition, our findi ngs suggest that splee n weight variation in this species is mostly influe need by lifehistory traits linked to reproduction, rather than overall energy availability, winter immunoenhancement, or energy partitioning effects, and prompt further research focusing on this topic.

关键词： body condition carnivore Herpestes ichneumon Iberian Peninsula mongoose spleen weight

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Control of inherited structural fabric on the development and exhumation of passive margins-Insights from the AraçuaíOrogen(Brazil)

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Geoscience Frontiers 2023年第6期14卷 30-48页

作者： Ana fonseca Tiago Novo Tobias Fonte-Boa Matheus Kuchenbecker daniel Galvão Carnier Fragoso daniel Peifer Antônio Carlos Pedrosa-Soares Johan de Grave Laboratory for Mineralogy and Petrology Department of GeologyGhent UniversityKrijgslaan 281 S89000 GhentBelgium Universidade Federal de Minas Gerais Programa de Pós-Graduação em GeologiaCPMTC-IGCCampus PampulhaBelo HorizonteMGBrazil Centro de Pesquisas Professor Manoel Teixeira da Costa Instituto de GeociênciasUniversidade Federal de Minas GeraisBelo HorizonteBrazil Universidade Federal dos Vales do Jequitinhonha e Mucuri Instituto de Ciência e TecnologiaCentro de Estudos em GeociênciasLaboratório de Estudos TectônicosDiamantinaBrazil Petrobras Rio de JaneiroRJBrazil Instituto de Geociências Universidade Federal do Rio Grande do SulPorto AlegreRSBrazil department of Geosciences University of TübingenSchnarrenbergstr.94-9672076 TübingenGermany

The AraçuaíOrogen,in eastern Brazil,was formed during the Neoproterozoic–Cambrian amalgamation of West *** the Mesozoic–Cenozoic opening of the South Atlantic Ocean,and the associated divergent tectonics,the orogen developed as basement to the passive margin of South America and was progressively covered by thick offshore sedimentary basins,particularly the Espírito Santo,Mucuri,and Cumuruxatiba basins,in which hydrocarbon systems have been *** understanding of the AraçuaíOrogen’s passive margin evolution,erosion,and sediment transfer to these basins ultimately depends on constraining the onshore exhumation in response to Mesozoic–Cenozoic ***,new and previously published data from apatite fission-track(AFT)analyses and inverse thermal history modelling of(Pre)Cambrian basement rocks from the AraçuaíOrogen resolve three discrete basement cooling and associated erosional exhumation *** the Pre-Rift phase,Jurassic–Hauterivian erosion of the AraçuaíOrogen is most likely related to the adjoining intra-continental West Gondwana flexural subsidence,which increased hillslope and river erosion *** the Rift and Transitional phases,Barremian–Albian accelerated phase of erosion is associated with the uplift of the Atlantic rift shoulders and the establishment of an oceanic *** the Drift phase,reactivations in response to far-field stresses likely triggered a Late Cretaceous–Paleocene rapid erosion *** rates at which these events unfolded vary spatially and are controlled by inherited *** AraçuaíOrogen experienced slower denudation rates in areas closer to the São Francisco Craton,which suggests that the tectonic reactivation and related surface uplift during the Mesozoic–Cenozoic is in first-order controlled by lithospheric ***,the structural framework of the Paramirim and Pirapora aulacogens and NE-oriented shear zones in the orogen’s southeast facilitated later *** the spati

关键词： Thermal history denudation Tectonic inheritance Reactivations South Atlantic Hydrocarbons

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Apparent soil electrical conductivity in the delineation of management zones for cocoa cultivation

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Information Processing in Agriculture 2022年第3期9卷 443-455页

作者： Samuel de Assis Silva Railton Oliveira dos Santos daniel Marcal de Queiroz Juliao Soares de Souza Lima Levi Fraga Pajehua Caique carvalho Medauar Center for Agricultural Sciences and Engineering Federal University of Espirito SantoAlegre CampusEspirito Santo 29500-000Brazil department of Agricultural Sciences Santa Cruz State UniversityIlheusBahia 45662-900Brazil department of Agricultural Engineering Federal University of Vic¸osaVic¸osaMinas Gerais 36570-900Brazil

Apparent electrical conductivity is an important parameter for describing the spatial vari-ability of physical and chemical attributes of the soil and for the delineation of manage-ment *** objective of this work is to outline management zones for the cocoa cultivation based on the spatial variability of the productivity and the apparent electrical conductivity(ECa)of the *** collection was performed in a regular sample grid con-taining 120 points in an area cultivated with cocoa trees,located in the municipality of Ilhe´us,state of Bahia,*** each sampling point(cocoa tree),soil samples were col-lected to determine chemical *** was measured for one year,counting,monthly,the number of fruits,which were classified into off-season cocoa,harvest and annual *** of the apparent electrical conductivity of the soil were performed at different times of the year using a portable conductivity *** data were analyzed using classical statistics and *** management zones were delin-eated using the fuzzy k-means *** ideal number of class was defined using the fuzziness performance index(FPI)and the entropy of the modified partition(MPE)*** Kappa coefficient was used to validate the management zones,assessing their agreement with the chemical attributes of the *** ECa of the soil values pre-sented moderate temporal variation,with maximum amplitude of 19.37 mS m1 and min-imum of 0.82 mS m1 between measurement periods;higher averages of the ECa coincided with the highest levels of water in the *** measurements of the ECa of the soil carried out in April and October showed greater correlation with the chemical attributes of the soil,with significant values for 11 and 8 of the 17 attributes evaluated,*** man-agement zones from the ECa measured in April showed:a)reduced number of classes;b)spatial continuity between classes,and;c)agreement from reasonable(kappa between

关键词： Theobroma cacao Precision agriculture Spatial variability Fuzzy k-means

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