PhosphorusCarbonEcosystemsFixationNitrateFertilizersTerrestrialIsotopesAtmosphericEcosystemNutrientOrganic MatterSoil1967HydrologicalLiquidLesionYieldOrganismsProceedingsConsistsQuantitativeFactorsCropMarineProductivityContentStageProcessesSearchInvestigateImportantFreshwaterPlantsSystemsJournalExamineDataFood chainTimeModelResearch
Phosphorus10
- He retired in 1993, and moved to Estes Park, CO. Cole was a soil scientist who specialized in soil chemistry, especially phosphorus cycling. (wikipedia.org)
- His research expanded into plant responses to phosphorus and then into broader studies of phosphorus cycling in relation to organic carbon and nitrogen transformations. (wikipedia.org)
- He was highly involved in the Scientific Committee on Problems of the Environment (SCOPE), serving as a member of the Scientific Advisory Committee on Biogeochemical Cycles and as the chairman of the International Phosphorus Project. (wikipedia.org)
- As part of that work, he organized four regional workshops on Phosphorus Cycling that brought together 240 scientists from 51 countries. (wikipedia.org)
- 1977. Simulation of phosphorus cycling in semiarid grasslands. (wikipedia.org)
- Biological aspects of the phosphorus cycle. (wikipedia.org)
- Phosphorus Cycles in Terrestrial and Aquatic Ecosystems. (wikipedia.org)
- 1981. Phosphorus effects on terrestrial nitrogen cycling. (wikipedia.org)
- Carbon, nitrogen, and phosphorus ratios were determined for reef autotrophs. (hawaii.edu)
- Nitrogen (N) and phosphorus (P) are the most widely measured foliar nutrients because they are essential to leaf functions such as photosynthesis and because either or both may limit primary production in terrestrial ecosystems (Elser et al. (uib.no)
Carbon9
- In mid-century, G.E. Hutchinson, while always one to praise aesthetic values, commented disparagingly about the quantitative science of element cycling, specifically that ecosystem carbon (C) data were "wretchedly inadequate" (Hutchinson 1954). (springer.com)
- We review the biochemical and physiological bases of the use of carbon and nitrogen isotopic compositions as an approach for environmental and ecological studies. (springeropen.com)
- The isotopic distributions of carbon and nitrogen in a single organism as well as in the whole biosphere are strongly regulated, so that their major components such as amino acids are coordinated appropriately rather than controlled separately. (springeropen.com)
- In recent decades, the natural abundances of stable carbon and nitrogen isotopes (represented as 13 C/ 12 C and 15 N/ 14 N ratios, respectively) have been widely used to probe biogeochemical and ecological processes. (springeropen.com)
- Carbon and nitrogen are essential elemental constituents of organisms and form various chemical species on Earth. (springeropen.com)
- Although the carbon and nitrogen isotopic compositions of diverse types of organic matter were measured and discussed by the pioneers of isotope geochemistry (e.g. (springeropen.com)
- As our knowledge of the distributions of carbon and nitrogen isotopes in organic matter and the factors controlling them has accumulated, the scope of isotopic measurements has greatly expanded. (springeropen.com)
- An important application of the analysis of carbon and nitrogen isotopic compositions is in ecological studies. (springeropen.com)
- This study is the first of its kind to analyse carbon, nitrogen and sulphur stable isotope data from skeletons of the eleventh-seventeenth centuries in Portugal. (springer.com)
Ecosystems4
- Hutchinson's comment was not only a complaint but also a challenge to all ecosystem scientists who followed to quantify the Earth's biogeochemical cycles, for he understood that the resilience and functioning of ecosystems was entirely dependent on how plants, animals, and decomposers used and reused the chemical elements that we call nutrients. (springer.com)
- Through this early body of work, it was quickly learned that individual nutrients cycle differently through ecosystems. (springer.com)
- His research career in lichenology then really began when he travelled to Canada to work as an NERC/NATO overseas research fellow at McMaster University with Ken Kershaw on a project investigating the role of lichens in the nitrogen cycle in boreal-arctic ecosystems. (ial-lichenology.org)
- These include, principally, research into the ecophysiology of lichens - investigating the activity and importance of nitrogen and phosphorous uptake in both natural and polluted ecosystems. (ial-lichenology.org)
Fixation4
- Successful integration of trees with agriculture for multiple environmental and crop protection functions, nitrogen fixation and fodder is well established in traditional systems in many parts of Europe (Rigueiro-Rodriguez et al 2009), and is gaining renewed interest today as an essential part of agricultural sustainability. (science20.com)
- Let's learn about the nitrogen cycle and its steps which are nitrogen fixation, ammonification, nitrification, assimilation and denitrificati, as well as its importance for all living beings. (hellovaia.com)
- Nitrogen fixation is arguably the most important stage of the nitrogen cycle. (hellovaia.com)
- Effects of nitrogen addition and planting density on the growth and biological nitrogen fixation of Lespedeza davurica [J]. Chin J Plant Ecol, 2021, 45(1): 13-22. (plant-ecology.com)
Nitrate4
- In our initial development and exploration of the model's behavior we have concentrated on modeling the annual cycle at Station "S" near Bermuda using seven compartments (Phytoplankton, Zooplankton, Bacteria, Nitrate, Ammonium, Dissolved organic nitrogen and Detritus). (yale.edu)
- The objectives were to assess long-term monitoring data to quantify changes to the thermal growing season length, investigate farmer adaptations to this and examine these and other factors in relation to total nitrogen and nitrate water concentrations. (springer.com)
- This means that nitrogen enters the ecosystem by plants absorbing it from the soil, often in the form of nitrate ions. (hellovaia.com)
- in this case, this will be the denitrifying bacteria in the soil, which convert nitrate ions back into nitrogen gas in a process called denitrification. (hellovaia.com)
Fertilizers1
- Influence of nitrogen fertilizers on the yield and composition of thyme ( Thymus vulgaris L.). Journal of Agricultural and Food Chemistry 51-26:7751-7758. (ac.ir)
Terrestrial1
- Terrestrial nitrogen cycles. (wikipedia.org)
Isotopes1
- This fractionation enables the use of stable nitrogen isotopes (δ 15 N) to infer trophic level, and high δ 15 N recorded in bone collagen usually indicates high-protein diets (Sponheimer et al. (springer.com)
Atmospheric2
- Atmospheric inputs of the mineral elements nitrogen (N) and sulfur (S) were found to be substantial, and these elements accumulated in the system over time. (springer.com)
- Although atmospheric nitrogen is not very accessible, this is where you will find the majority of the Earth's nitrogen, so the atmosphere is a reservoir. (hellovaia.com)
Ecosystem4
- This work led to significant advances in the understanding of management impacts on nutrient cycling and long-term productivity in agroecosystems, and paved the way for collaborative research in ecosystem science. (wikipedia.org)
- The flux of energy through populations of herbivores, carnivores, and detritus feeders, and the biological cycling of nutrients through the ecosystem are ultimately tied to the primary productivity of plants. (geocosmicrex.com)
- These metrics can also capture changes in ecosystem nutrient supply that result from climate-driven shifts in microbial nutrient cycling or from other other global-change impacts such as N deposition (which can decrease C:N ratios) (Elser et al. (uib.no)
- C:N, C:P, or N:P ratios), it may also influence rates of litter decomposition and thus ecosystem nutrient cycling more broadly (Manzoni et al. (uib.no)
Nutrient5
- Dr. C. Vernon Cole (November 12, 1922 - August 30, 2013) was a soil scientist known primarily for his work on nutrient cycling in agroecosystems. (wikipedia.org)
- He was the principal investigator on two major interdisciplinary projects, entitled "Organic Matter and Nutrient Cycling in Semiarid Agroecosystems" (1979-1985) and "Organic C, N, S and P Formation and Loss from Great Plains Agroecosystems" (1985-1989). (wikipedia.org)
- In the Sand County Almanac (Leopold 1949), Aldo Leopold writes of the odyssey of element X and thus of the circulation of all nutrient elements as they cycle through the Earth's forests, rangelands, lakes, and oceans. (springer.com)
- In the late twentieth century, the science of biogeochemistry proliferated internationally to become a major interdisciplinary science, and enormous amounts of nutrient cycling data have since been collected and synthesized. (springer.com)
- Not all nitrogen is taken up by consumers due to a variety of reasons (not consuming the whole organism, being unable to utilise all the nutrients, and nutrient loss through urea and faeces). (hellovaia.com)
Organic Matter1
- 1981. Comparative aspects of organic C, N, S, and P cycling through soil organic matter during pedogenesis. (wikipedia.org)
Soil2
- The aim of this work is to evaluate the response of leaf chlorophyll and carotenoid (C t ) content in wheat ( Triticum aestivum L.) to changes in varying application levels of soil salinity and fertilizer applied over a complete growth cycle. (mdpi.com)
- A major constraint to maize production in the tropics is inadequate soil nitrogen 1 , 2 . (scialert.net)
19673
- Cryotherapy with liquid nitrogen {Kee, 1967} would be the treatment of first choice. (genevadermatology.ch)
- The results following cryotherapy {Kee, 1967} depend on the vasculature of the lesion, its thickness and how long and how often the liquid nitrogen is applied. (genevadermatology.ch)
- id: 1030 ADJANOHOUN, E. & L. AKE ASSI (1967): Inventaire floristique des forets claires sub-soudanaises et soudanaises en Cote d'Ivoire. (amphibiaweb.org)
Hydrological1
- For example, an intensified hydrological cycle is anticipated to follow in a warming climate, and with sea ice decline, a greater fraction of the internal FW burden now cycles seasonally between the solid (ice) and liquid (halocline) lids, the latter of which has both a seasonal and perennial structure, as emphasized here. (frontiersin.org)
Liquid3
- The organs were transported in liquid nitrogen to the laboratory. (who.int)
- The aim of this paper is to present the treatment of pediatric ranula with liquid nitrogen cryosurgery performed in a 8 year, 6-month-old male, without local anesthesia. (bvsalud.org)
- Liquid nitrogen cryosurgery for management of ranulas may become a primary treatment modality prior to surgery in children. (bvsalud.org)
Lesion1
- The lesion is blanched one mm around the lesion and the cycle is repeated two or three times. (genevadermatology.ch)
Yield5
- In the initial attempt, 1a was adopted as the substrate with the conjugated tetrasubstituted alkene as the target bond to insert a nitrogen atom with ammonia (Table 1 ) at 0 °C. The first observed insertion product 2a had a 16% 1 H NMR yield when graphite felt (GF) was used as the electrodes and methanol was used as the solvent (entry 1). (nature.com)
- Effect of Nitrogen and Cytokinin on Quantitative and Qualitative Yield of Thyme (Thymus vulgaris L. (ac.ir)
- The results of analysis of variance showed that the interaction effect of nitrogen × cytokinin on plant height, number of branches, leaf, stem and whole plant dry weights, essential oil percentage and yield was significant (p ≤0.01). (ac.ir)
- In general, the results of this experiment showed that the quantitative and qualitative yield of thyme can be increased by consuming the appropriate amount of nitrogen and cytokinin. (ac.ir)
- The combined use of nitrogen and cytokinin improved quantitative and qualitative yield of thyme. (ac.ir)
Organisms2
- Nitrogen is a vital molecule that organisms need in manufacturing proteins, which build up the protective structures in their bodies, as well as for DNA, which provides hereditary information for all living things. (hellovaia.com)
- Although most of the atmosphere is made up of nitrogen gas (78%), only a select group of organisms can harness nitrogen in the gas state. (hellovaia.com)
Proceedings1
- Nitrogen cycling in coastal marine environments : proceedings from a SCOPE symposium held at the University of Aarhus, 3-7 June 1985 / edited by T. Henry Blackburn and Jan Sorensen. (who.int)
Consists2
- Fig. 1 - The nitrogen cycle consists of different processes or stages. (hellovaia.com)
- The recommended process route consists of a nitrogen expander cycle to provide low temperature refrigeration and a two stage refrigeration unit using refrigerant 22 to provide the high level refrigeration. (onepetro.org)
Quantitative1
Factors2
- Aims Nitrogen (N) supply and planting density are two important factors influencing plant growth. (plant-ecology.com)
- Factors included nitrogen levels (0, 50 and 100 kg N/ha) and cytokinin concentrations (0, 100, 200 and 400 μM). (ac.ir)
Crop1
- Nitrogen is required in various quantities by the crop depending on varieties. (scialert.net)
Marine1
- Nitrogen in the marine environment. (tulane.edu)
Productivity1
Content1
Stage1
- His achievements in cycling include completing the UK 'coast-to-coast' route and a Tour-de-France Alpine mountain stage. (ial-lichenology.org)
Processes1
- By 1954, all main production plants, comprising a wide array of uranium fuel cycle chemical and metallurgical processes were fully operational. (cdc.gov)
Search1
- http://www.un.org/en/ga/search/view_doc.asp?symbol=A/RES/68/300 (accessed 10 October 2016). (who.int)
Investigate1
- It is our goal that these conceptualizations, based on the current state-of-the-art, will drive hypothesis-based research to investigate the physical-biogeochemical response to a changing freshwater cycle in a future Arctic Ocean with greatly reduced ice cover. (frontiersin.org)
Important1
- Complete ammonia oxidizers (Comammox, CMX) are a newly discovered and important component of the nitrogen cycle. (bvsalud.org)
Freshwater1
- As an example of seasonality, the continued modulation of the sea ice freeze-melt cycle has increased the seasonal freshwater burden in the deep basins dramatically as the system progresses toward ice-free summer conditions, but will eventually reverse, reducing the seasonal flux of freshwater by more than half in a future, perennially ice-free ocean. (frontiersin.org)
Plants2
- When the plants lose their tissues, the nitrogen contained within them becomes reaccessible slowly relative to most other plants existing elsewhere. (kenyon.edu)
- Plants will use this inorganic nitrogen to manufacture organic compounds absorbed by animals when they consume these plants. (hellovaia.com)
Systems3
- Nitrogen-Cycle Model for Aquatic Systems: Analysis," ASCE Journal of Environmental Engineering , 107, No. EE6. (najarian.com)
- Nitrogen in upwelling systems, p. 513-564. (tulane.edu)
- The high-profile explosion during a gas-line purge at Kleen Energy Systems LLC's 2 × 1 combined cycle under construction in Middletown, Conn, Feb 7, 2010 (Fig 1), that killed six and injured many others, pushed the development of NFPA 56 into high gear. (ccj-online.com)
Journal1
- Application of Nitrogen-Cycle Model to Manasquan Estuary," ASCE Journal of Environmental Engineering , 110, No. 1: 190-207. (najarian.com)
Examine1
- The home urine collection was measured in 2014 of the 2013-2014 NHANES cycle to examine the utility of spot urine specimens in estimating 24-hour excretion for various analytes at the population level. (cdc.gov)
Data2
- 1 See paragraphs 16-18 of document A69/10, based on data included in the Noncommunicable diseases progress monitor 2015, availab le at http://www.who.int/nmh/publications/ncd-progress-monitor-2015/en/ (accessed 10 October 2016). (who.int)
- 3 See http://www.who.int/nmh/events/2015/bloomberg-data-for-health/en/ (accessed 10 October 2016). (who.int)
Food chain1
- This nitrogen then passes through the food chain. (hellovaia.com)
Time2
- While at the same time from 1981 to 2006, 47% of discovered and developed cancer drugs were sourced from natural products. (mongabay.com)
- We focus here on these two "lids" as a central location for FW exchanges and cycling on seasonal and regional time and space scales, with particular emphasis on the upper ocean. (frontiersin.org)
Model3
- A nitrogen-based model of plankton dynamics in the oceanic mixed layer" by M. J. R. Fasham, H. W. Ducklow et al. (yale.edu)
- As a first step toward the development of coupled, basin scale models of ocean circulation and biogeochemical cycling, we present a model of the annual cycles of plankton dynamics and nitrogen cycling in the oceanic mixed layer. (yale.edu)
- These model runs reproduce the annual cycles of areal NPP, and average annual NPP, new production, and particulate N flux values reported in the literature. (yale.edu)
Research1
- After a return spell as a Junior Research Fellow at the University of Sheffield, Peter then took up a lectureship at the University of Nottingham (UK) in 1981 where he has remained ever since. (ial-lichenology.org)