topsoil Concept

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research area of

• Chivenge, Pauline, ICRISAT
• Hauser, Stefan, Root & Tuber Systems Agronomist, IITA, IITA
• Martius, Christopher, Managing Director - Geschäftsführer CIFOR Germany gGmbH, CIFOR, CIFOR
• Neufeldt, Henry, Senior Scientist, ICRAF, ICRAF
• Ostermann, Anne, Agricultural ecology specialist, ICRAF, ICRAF
• Rao, Idupulapati M., Plant Nutritionist, The Alliance of Bioversity International and CIAT, The Alliance of Bioversity and CIAT
• Recha, John, Scientist - Climate Smart Agriculture and policy, ILRI, ILRI
• Roshetko, James, Agroforestry System Scientist, ICRAF, CIFOR
• Sanginga, Nteranya, Director General, IITA, The Alliance of Bioversity and CIAT
• Shepherd, Keith, Soils Theme Leader, ICRAF, ICRAF
• Sila, Andrew M., Data Scientist - Soils, ICRAF, ICRAF
• Six, Johan, Consultant, IITA, IITA
• Vagen, Tor-Gunnar, Geoinformatics Senior Scientist/ Head of Geoscience Lab, ICRAF, ICRAF
• van Noordwijk, Meine, Distinguished Science Fellow, ICRAF, CIFOR
• Vanlauwe, Bernard, Director R4D, Central Africa and Natural Resource Management, IITA, The Alliance of Bioversity and CIAT
• Verchot, Louis, Principal Scientist, Landscape Restoration, The Alliance of Bioversity International and CIAT, The Alliance of Bioversity and CIAT
• Winowiecki, Leigh Ann, Theme Leader -Soils, ICRAF, The Alliance of Bioversity and CIAT
• Xu, Jianchu, Regional Coordinator-East and Central Asia, ICRAF, ICRAF

subject area of

• A continuous sampling technique to estimate surface cast production of the tropical earthworm Hyperiodrilus africanus
• A critical analysis of challenges and opportunities for soil fertility restoration in Sudano-Sahelian West Africa
• Above- and belowground litter stocks and decay at a multi-species afforestation site on arid, saline soil
• Aggregation studied by laser diffraction in relation to plowing and liming in the Cerrado region in Brazil
• Agroforestry systems: Meta‐analysis of soil carbon stocks, sequestration processes, and future potentials
• Alpine Grassland Soil Organic Carbon Stock and Its Uncertainty in the Three Rivers Source Region of the Tibetan Plateau
• Aluminum-contaminant transport by surface runoff and bypass flow from an acid sulphate soil
• Analysis of steady state chloride transport through two heterogeneous field soils
• Applications of reduced tillage in hills of central Nepal
• Assessing drivers of soil properties and classification in the West Usambara mountains, Tanzania
• Assessing soil quality under different land cover types within shifting agriculture in South Cameroon
• Assessment of banana planting practices and cultivar tolerance in relation to management of soilborne Xanthomonas campestris pv musacearum
• Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils
• Balancing rice and non-rice crops: Managing the risks from soil constraints in Mainland Southeast Asian rice systems
• Biochar addition persistently increased soil fertility and yields in maize-soybean rotations over 10 years in sub-humid regions of Kenya
• Biochar amendment techniques for upland rice production in Northern Laos 1. Soil physical properties, leaf SPAD and grain yield
• Can cocoa agroforestry restore degraded soil structure following conversion from forest to agricultural use
• Carbon dynamics in topsoil and subsoil along a cultivated toposequence
• Changes in carbon and nutrient fluxes from headwaters to ocean in a mountainous temperate to subtropical basin
• Clay addition and redistribution to enhance carbon sequestration in soils
• Climate and vegetation determine soil organic matter status in an alpine inner-tropical soil catena in the Fan Si Pan Mountain, Vietnam
• Comparison of Physicochemical Properties of Soils under Contrasting Land Use Systems in Southwestern Nigeria
• Constructing an Arable Layer Through Chisel Tillage and Agropastoral Systems in Tropical Savanna Soils of the Llanos of Colombia
• Contributory factors to soil spatial variability in an ultisol I. burning vegetation residues in heaps during land clearing
• Conversion of natural forest results in a significant degradation of soil hydraulic properties in the highlands of Kenya
• DETERMINANTS OF FERTILIZER MICRODOSING-INDUCED YIELD INCREMENT OF PEARL MILLET ON AN ACID SANDY SOIL
• Deep soil carbon storage in tree-dominated land use systems in tropical lowlands of Kalimantan
• Dissolved organic carbon leaching from montane grasslands under contrasting climate, soil and management conditions
• Distribution of water-stable aggregates and aggregating agents in Cerrado Oxisols
• Does shade tree diversity increase soil fertility in cocoa plantations
• Does tree species composition control soil organic carbon pools in Mediterranean mountain forests
• Earthworm activity and soil structural changes under conservation agriculture in central Mexico
• Effect of conservation farming practices on soil organic matter and stratification in a mono-cropping system of Northern China
• Effectiveness of terracing techniques for controlling soil erosion by water in Rwanda.
• Effects of drought stress and arbuscular mycorrhiza on the growth of Gliricidia sepium (Jacq). Walp, and Leucaena leucocephala (Lam.) de Wit. in simulated eroded soil conditions
• Effects of land cover on ecosystem services in Tanzania: A spatial assessment of soil organic carbon
• Effects of land-use change on chemical composition of soil organic matter in tropical lowland Bolivia
• Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands
• Effects of soil clay content on water balance and productivity in rainfed lowland rice ecosystem in northeast Thailand
• Effects of termites on the physical and chemical properties of the acid sandy soils of southern Nigeria
• Enhanced Absorption and Persistence of Carbofuran and Chlordimeform in Rice Plant on Root Zone Application Under Flooded Conditions
• Enhanced nitrogen cycling and N2O loss in water-saving ground cover rice production systems (GCRPS)
• Environmental implications of high metal content in soils of a titanium mining zone in Kenya
• Establishment and yield of wheat (Triticum turgidum L.) after early sowing at various depths in a semi-arid Mediterranean environment
• Estimates of soil carbon concentration in tropical and temperate forest and woodland from available GIS data on three continents
• Estimating soil total nitrogen in smallholder farm settings using remote sensing spectral indices and regression kriging
• Estimating the Consequences of Fire Exclusion for Food Crop Production, Soil Fertility, and Fallow Recovery in Shifting Cultivation Landscapes in the Humid Tropics
• Evaluating indicators of land degradation in smallholder farming systems of western Kenya
• Evaluating the effect of remote sensing image spatial resolution on soil exchangeable potassium prediction models in smallholder farm settings.
• Factors Controlling the Spatial Variability of Copper in Topsoils of the Northeastern Region of the Iberian Peninsula, Spain
• Factors Controlling the Spatial Variability of Mercury Distribution in Spanish Topsoil
• Fertility status of soils of the derived savanna and northern guinea savanna and response to major plant nutrients, as influenced by soil type and land use management
• Forms and fluxes of potential plant-available silicon in irrigated lowland rice production (Laguna, the Philippines)
• Fuzzy mapping of soil fertility — a case study on irrigated riceland in the Philippines
• Greenhouse evaluation of two woody hedgerows as affected by arbuscular mycorrhizal fungus (AMF), soil quality and moisture
• Historical charcoal additions alter water extractable, particulate and bulk soil C composition and stabilization
• Hydraulic resistance in puddled rice soils: measurement and effects on water movement.
• Identifying factors limiting legume biomass production in a heterogeneous on-farm environment
• Impacts of forests and forestation on hydrological services in the Andes: A systematic review
• Improvement of the physical fertility of a degraded Alfisol with planted and natural fallows under humid tropical conditions
• Individual and combined effects of soil waterlogging and compaction on physiological characteristics of wheat in southwestern China
• Input/output analysis of the cumulative soybean response to phosphorus on an ultisol
• Integration of mid-infrared spectroscopy and geostatistics in the assessment of soil spatial variability at landscape level
• Interaction Between Resource Quality, Aggregate Turnover, Carbon and Nitrogen Cycling in the Central Highlands of Kenya
• Isolation of a novel mutant gene for soil-surface rooting in rice (Oryza sativa L.)
• Land Use, Land Use History, and Soil Type Affect Soil Greenhouse Gas Fluxes From Agricultural Landscapes of the East African Highlands
• Landscape-scale assessments of stable carbon isotopes in soil under diverse vegetation classes in East Africa: application of near-infrared spectroscopy.
• Landscape-scale variability of soil health indicators: effects of cultivation on soil organic carbon in the Usambara Mountains of Tanzania
• Large topsoil organic carbon variability is controlled by Andisol properties and effectively assessed by VNIR spectroscopy in a coffee agroforestry system of Costa Rica
• Long term impact of Acacia auriculiformis woodlots growing in rotation with cassava and maize on the carbon and nutrient contents of savannah sandy soils in the humid tropics (Democratic Republic of Congo)
• Long- and short-term effects of crop residues on aluminum toxicity, phosphorus availability and growth of pearl millet in an acid sandy soil
• Long-term soil organic carbon dynamics in a subhumid tropical climate: 13C data in mixed C3/C4 cropping and modeling with ROTHC
• Long‐term effects of land clearing methods, tillage systems and cropping systems on surface soil properties of a tropical Alfisol in S.W. Nigeria
• Maize-based conservation agriculture systems in Malawi: Long-term trends in productivity
• Management of phosphorus, potassium, and sulfur in intensive, irrigated lowland rice
• Mechanisms of residue mulch-induced cereal growth increases in West Africa.
• Mercury content in topsoils, and geostatistical methods to identify anthropogenic input in the Ebro basin (Spain)
• Methane production and emission in surface and subsurface rice soils and their blends
• Methane production capacities of different rice soils derived from inherent and exogenous substrates
• Multiscale analysis of heavy metal contents in Spanish agricultural topsoils.
• Nitrogen and Carbon Mineralization in Cultivated Acrisols and Vertisols in a Sub-Humid Tropical Climate
• Nitrogen and phosphorus supply controls soil organic carbon mineralization in tropical topsoil and subsoil
• Nutrient balances—a guide to improving sorghum- and groundnut-based dryland cropping systems in semi-arid tropical India
• Nutrients and pollutants in agricultural soils in the peri-urban region of Beijing: Status and recommendations
• On-Farm Nutrient Balance Studies in the Dry Zone of Myanmar
• Organic Carbon and Alkalinity Increase in Topsoil After Rangeland Restoration Through Atriplex nummularia Plantation
• Organic Carbon and Alkalinity Increase in Topsoil After Rangeland Restoration Through Atriplex nummularia Plantation : Impact on Soils of A. nummularia Plantations
• Overgrazing decreases soil organic carbon stocks the most under dry climates and low soil pH: A meta-analysis shows
• Particulate macronutrient exports from tropical Africanmontane catchments point to the impoverishment ofagricultural soils
• Pasture degradation decreases organic P content of tropical soils due to soil structural decline
• Performance Evaluation of Proximal Sensors for Soil Assessment in Smallholder Farms in Embu County, Kenya.
• Periodicity of organic constituents in high input tropical rice soil
• Persistence and downward movement of some selected herbicides in the humid and subhumid tropics
• Phosphorus fractions and dynamics in surface earthworm casts under native and improved grasslands in a Colombian savanna Oxisol
• Post Stratification Clarifies Treatment Effects on Pearl Millet Growth in the Sahel
• Potential of agroforestry for carbon sequestration and mitigation of greenhouse gas emissions from soils in the tropics
• Potential of grassland rehabilitation through high density-short duration grazing to sequester atmospheric carbon
• Potential storages and drivers of soil organic carbon and total nitrogen across river basin landscape: The case of Mo river basin (Togo) in West Africa
• Precision of farmer-based fertility ratings and soil organic carbon for crop production on a Ferralsol
• Productivity and botanical composition of communally-owned Mediterranean grasslands in the marginal farming areas of north Syria
• Properties of rice soils affecting methane production potentials: 2. Differences in topsoil and subsoil
• Readily available concentrations of selected micronutrients and harmful metals in soils of Sub-Saharan Africa
• Reducing topsoil salinity and raising carbon stocks through afforestation in Khorezm, Uzbekistan
• Rice establishment method affects nitrogen use and crop production of rice-legume systems in drought-prone eastern India
• Role of deforestation and hillslope position on soil quality attributes of loess-derived soils in Golestan province, Iran
• Root distribution of Senna siamea grown on a series of derived-savanna-zone soils in Togo, West Africa
• Sediment flow behaviour from small agricultural watersheds
• Selected trace elements evaluation in soil from an urban farming area
• Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone
• Short fallows of Tithonia diversifolia and Crotalaria grahamiana for soil fertility improvement in western Kenya
• Short- and long-term effects of crop residues and of phosphorus fertilization on pearl millet yield on an acid sandy soil in Niger, West Africa
• Soil C balances in Swedish agricultural soils 1990-2004, with preliminary projections
• Soil Carbon Stocks Decrease following Conversion of Secondary Forests to Rubber (Hevea brasiliensis) Plantations
• Soil Carbon and Nitrogen Changes in Long‐Term Continuous Lowland Rice Cropping
• Soil Fertility Potential for Rice Production in West African Lowlands
• Soil Fertility under Native Cerrado and Pasture in the Brazilian Savanna
• Soil acidification in Pinus caribaea forests on Brazilian savanna Oxisols
• Soil and water table management effects on aluminum dynamics in an acid sulphate soil in Vietnam
• Soil carbon 4 per mille
• Soil carbon sequestration and land use change associated with biofuel production: empirical evidence
• Soil condition classification using infrared spectroscopy: A proposition for assessment of soil condition along a tropical forest-cropland chronosequence
• Soil erosion prediction using RUSLE for central Kenyan highland conditions
• Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia
• Soil mapping for improved phenotyping of drought resistance in lowland rice fields
• Soil nitrate dynamics in relation to nitrogen source and landscape position in Malawi
• Soil organic carbon dynamics along chrono-sequence land-use systems in the highlands of Ethiopia
• Soil property changes in contour hedgerow systems on sloping land in the Philippines
• Soil rehabilitation following tractor logging: early results on amendments and tilling in a second rotation Acacia mangium plantation in Sabah, Malaysia
• Soil respiration in sloping rubber plantations and tropical natural forests in Xishuangbanna, China
• Soil salinity reduction and prediction of salt dynamics in the coastal ricelands of Bangladesh
• Soil water regime under rotational fallow and alternating hedgerows on an Ultisol in southern Cameroon
• Soils and Soil Ecology in Khorezm
• Sources of Soil Variation in An Acid Ultisol of the Philippines
• Spatial Distribution of Soil Hydrological Properties in the Kilombero Floodplain, Tanzania
• Spatial Gradients of Ecosystem Health Indicators across a Human-Impacted Semiarid Savanna.
• Spatial patterns of essential trace element concentrations in Swedish soils and crops
• Spatial variability in penetration resistance of a hardsetting tropical alfisol
• Spatial variability of soluble boron in Syrian soils
• Stream water nutrient and organic carbon exports from tropical headwater catchments at a soil degradation gradient
• Subsoil improvement in a tropical coarse textured soil: Effect of deep-ripping and slotting
• Sustainable land management interventions lead to carbon sequestration in plant biomass and soil in a mixed crop-livestock system: the case of Geda watershed, central highlands of Ethiopia
• Terrestrial pyrogenic carbon export to fluvial ecosystems: Lessons learned from the White Nile watershed of East Africa
• The distribution of phosphorus fractions and desorption characteristics of some soils in the moist savanna zone of West Africa
• The effect of afforestation on water infiltration in the tropics: A systematic review and meta-analysis
• Tillage and water management for riceland productivity in acid sulfate soils of the Mekong delta, Vietnam.
• Topsoil Bacterial Community Changes and Nutrient Dynamics Under Cereal Based Climate-Smart Agri-Food Systems
• Topsoil characterization—recommendations for revision and expansion of the FAO-Draft (1998) with emphasis on humus forms and biological features
• Trait‐based approaches for guiding the restoration of degraded agricultural landscapes in East Africa
• Tree species and recovery time drives soil restoration after mining: A chronosequence study
• Use of deep-rooted tropical pastures to build-up an arable layer through improved soil properties of an Oxisol in the Eastern Plains (Llanos Orientales) of Colombia
• Using vNIR spectroscopy to assess changes in Ultisols of Pará State, Brazil
• Utilization of near infrared reflectance spectroscopy (NIRS) to quantify the impact of earthworms on soil and carbon erosion in steep slope ecosystem: A study case in Northern Vietnam
• Variability of Soil Micronutrients Concentration along the Slopes of Mount Kilimanjaro, Tanzania
• Water loss regulation in mature Hevea brasiliensis: effects of intermittent drought in the rainy season and hydraulic regulation
• Wind erosion: the perspective of grass‐roots communities in the Sahel
• Wind‐blown nutrient transport and soil productivity changes in southwest Niger