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Artigos de revistas sobre o tema "Nutrient cycling"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

MAHENDRAPPA, M. K., N. W. FOSTER, G. F. WEETMAN, and H. H. KRAUSE. "NUTRIENT CYCLING AND AVAILABILITY IN FOREST SOILS." Canadian Journal of Soil Science 66, no. 4 (1986): 547–72. http://dx.doi.org/10.4141/cjss86-056.

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Nutrient availability in different forest soils must be known before increased wood production can be sustained either by adding supplemental nutrients or by judicious silvicultural operations to optimize the linkage between the variable nutrient requirements of forest crops. This is complicated by the variable availability of nutrients on forest sites during crop development. Forest crops unlike agricultural crops have long rotation periods which make it difficult to apply agricultural methods of estimating potentially available nutrients directly to forest soils. Presented in this review are

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Santos, Perlon Maia dos, Antonio Clementino dos Santos, Durval Nolasco das Neves Neto, Wallace Henrique de Oliveira, Luciano Fernandes Sousa, and Leonardo Bernardes Taverny de Oliveira. "Implementation of Silvopastoral Systems under Nutrient Cycling in Secondary Vegetation in the Amazon." Journal of Agricultural Science 10, no. 4 (2018): 124. http://dx.doi.org/10.5539/jas.v10n4p124.

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Silvopastoral systems can be implemented in idle secondary forests; however, they may affect nutrient cycling in these ecosystems. This farming practice using babassu palms (Attalea speciosa Mart.) and Mombasa grass (Panicum maximum Jacq.) has been little studied, and the nutrient cycling occurred during this practice is yet unknown. The goal of this paper was to detect the leaf litter accumulation, decomposition, and nutrient release occurring in silvopastoral systems in a babassu secondary forest, and compared the results with those of a native forest and of a pasture grown under full sunlig

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3

van Breemen, Nico. "Nutrient cycling strategies." Plant and Soil 168-169, no. 1 (1995): 321–26. http://dx.doi.org/10.1007/bf00029344.

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Macedo, Priscila Helena da Silva, Emily Mariano da Cruz Lopes, Mariano Vieira dos Santos de Souza Lopes, Fernando César Sala, and Claudinei Fonseca Souza. "Macronutrient cycling in hydroponic lettuce cultivation." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 17, no. 5 (2022): 1–11. http://dx.doi.org/10.4136/ambi-agua.2849.

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In order to address issues of limited resources and contamination by fertilizers, nutrient solutions may be reused in hydroponics as an alternative to their disposal in the environment. This work evaluated the feasibility of nutrient replacement for the nutrient solutions reused during lettuce hydroponic cultivation. The experiment was carried out in an agricultural greenhouse in an NFT hydroponic system using the “Milena” lettuce cultivar. The experiment was divided into two stages: 1) monitoring and data collection and proposition of nutrient replacement management; and 2) validation of the

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Yang, Qingmiao, Hanwen Liu, Biao Tang, et al. "Rare Taxa as Key Drivers of Soil Multi-Nutrient Cycling Under Different Crop Types." Microorganisms 13, no. 3 (2025): 513. https://doi.org/10.3390/microorganisms13030513.

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Soil microorganisms are crucial for nutrient cycling, with abundant and rare taxa playing distinct roles. However, the mechanisms by which soil microbes influence nutrient cycling under different crop types remain unclear. In this study, we investigated the network structure, diversity, and microbial composition of croplands in the Yellow River Delta, focusing on four primary crops: soybean, maize, cotton, and sorghum. The findings revealed that the co-occurring network structure of sorghum planting-soils exhibited greater complexity than other crop types. Bacterial alpha diversity in cotton-p

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Rogers, Howard M. "Litterfall, decomposition and nutrient release in a lowland tropical rain forest, Morobe Province, Papua New Guinea." Journal of Tropical Ecology 18, no. 3 (2002): 449–56. http://dx.doi.org/10.1017/s0266467402002304.

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The analysis of litter quantity, litter decomposition and its pattern of nutrient release is important for understanding nutrient cycling in forest ecosystems. Plant growth and maintenance are partly met through nutrient cycling (O'Connell & Sankaran 1997) which is dominated by litter production and decomposition. Litter fall is a major process for transferring nutrients from above-ground vegetation to soils (Vitousek & Sanford 1986), while decomposition of litter releases nutrients (Maclean & Wein 1978). The rate at which nutrients are recycled influences the net primary productiv

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Anderson, Wendy B., and William G. Eickmeier. "Nutrient resorption in Claytonia virginica L.: implications for deciduous forest nutrient cycling." Canadian Journal of Botany 78, no. 6 (2000): 832–39. http://dx.doi.org/10.1139/b00-056.

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According to the vernal dam hypothesis, spring ephemeral herbs temporarily sequester large nutrient pools in deciduous forests prior to canopy closure and return the nutrients to the soil following senescence of aboveground tissues. However, many species resorb nutrients from their leaves back to belowground tissues during senescence, and the degree of resorption is often associated with soil nutrient availability. Species that store large proportions of their absorbed nutrients between years are not participating in the temporary sequestering and rapid recycling of nutrients implied by the ve

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Saravanan, S., C. Buvaneswaran, P. Manivachagam, K. Rajagopal, and M. George. "Nutrient cycling in Casuarina (Casuarina equisetifolia) based agroforestry system." Indian Journal of Forestry 35, no. 2 (2012): 187–91. http://dx.doi.org/10.54207/bsmps1000-2012-apbnt4.

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The present report gives an account of the results of research carried out on litter production, accumulation and nutrient return through rainfall, stem flow, throughfall and interception to soil litter fall, under Casuarina-Black Gram Agroforestry Models (age 4 years, density 650 trees/ha). It was found that of the total rainfall (497.9 mm) 1.2% was recorded as stem flow and 80% as throughfall while the interception accounted for 19 %. It is found that on an average annual basis, of the total uptake of various nutrients was retained in the non-photosynthetic biomass and the rest returned to s

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9

Gomes Júnior, Diêgo, Marcos Vinicius Winckler Caldeira, Dione Richer Momolli, et al. "Accumulated litter, nutrient stock and decomposition in an Atlantic Forest fragment." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 17, no. 2 (2022): 1–16. http://dx.doi.org/10.4136/ambi-agua.2787.

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Litter dynamics is one of the fundamental processes for the growth and maintenance of native forest fragments, being considered the main pathway for nutrient cycling in forests. Therefore, studies on accumulated litter and nutrient content provide information for a better understanding of nutrient dynamics. The aim of the study was to evaluate leaf litter and nutrient stock in different seasons and the instantaneous rate of decomposition in an Atlantic Forest Fragment over two years. Litter sampling was carried out in 12 permanent plots with dimensions of 20 m x 50 m. Litter dry mass and nutri

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10

Anderson, Wendy B., and William G. Eickmeier. "Physiological and morphological responses to shade and nutrient additions of Claytonia virginica (Portulacaceae): implications for the "vernal dam" hypothesis." Canadian Journal of Botany 76, no. 8 (1998): 1340–49. http://dx.doi.org/10.1139/b98-134.

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Because of their unique phenology and physiology, spring ephemeral herbs are believed to play an important role in intrasystem nutrient cycling in deciduous forest ecosystems. It was hypothesized that they function as a "vernal dam" by temporarily sequestering nutrients and preventing leaching from the system during a period of high nutrient availability. However, spring ephemerals require high-irradiance growing conditions. How do their physiological and morphological responses to ambient light and shade limit their ability to sequester excess nutrients? We performed field experiments using C

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11

BROWN, DENNIS H., and JEFFREY W. BATES. "Bryophytes and nutrient cycling." Botanical Journal of the Linnean Society 104, no. 1-3 (1990): 129–47. http://dx.doi.org/10.1111/j.1095-8339.1990.tb02215.x.

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ATTIWILL, PETER M., and MARK A. ADAMS. "Nutrient cycling in forests." New Phytologist 124, no. 4 (1993): 561–82. http://dx.doi.org/10.1111/j.1469-8137.1993.tb03847.x.

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L�ng, I. "Nutrient cycling and sustainability." Fertilizer Research 43, no. 1-3 (1996): 31–35. http://dx.doi.org/10.1007/bf00747679.

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Murbach, Marcos Roberto, Antonio Enedi Boaretto, Takashi Muraoka, and Euclides Caxambu Alexandrino de Souza. "Nutrient cycling in a RRIM 600 clone rubber plantation." Scientia Agricola 60, no. 2 (2003): 353–57. http://dx.doi.org/10.1590/s0103-90162003000200021.

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Few reports have been presented on nutrient cycling in rubber tree plantations (Hevea brasiliensis Muell. Arg.). This experiment was carried out to evaluate: the effect of K rates on the amount of nutrients transfered to the soil in a 13-year old Hevea brasilensis RRIM 600 clone plantation, nutrient retranslocation from the leaves before falling to the soil, and nutrient loss by dry rubber export. The experiment started in 1998 and potassium was applied at the rates of 0, 40, 80 and 160 kg ha-1 of K2O under the crowns of 40 rubber trees of each plot. Literfall collectors, five per plot, were r

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Sagi, Nevo, and Dror Hawlena. "Arthropods as the Engine of Nutrient Cycling in Arid Ecosystems." Insects 12, no. 8 (2021): 726. http://dx.doi.org/10.3390/insects12080726.

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Nutrient dynamics in most terrestrial ecosystems are regulated by moisture-dependent processes. In drylands, nutrient dynamics are often weakly associated with annual precipitation, suggesting that other factors are involved. In recent years, the majority of research on this topic focused on abiotic factors. We provide an arthropod-centric framework that aims to refocus research attention back on the fundamental role that macro-arthropods may play in regulating dryland nutrient dynamics. Macro-arthropods are prevalent in drylands and include many detritivores and burrowing taxa that remain act

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Knops, J. M. H., T. H. Nash Iii, V. L. Boucher, and W. H. Schlesinger. "Mineral Cycling and Epiphytic Lichens: Implications at the Ecosystem Level." Lichenologist 23, no. 3 (1991): 309–21. http://dx.doi.org/10.1017/s0024282991000452.

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AbstractThe nutrient contribution of lichens as litterfall in forests is discussed for a number of different ecosystems and it is hypothesized that lichens are important in capturing nutrients from wet deposition, occult precipitation, sedimentation, impaction and gaseous uptake. Most nutrients captured by these processes represent new nutrient inputs that would otherwise not be intercepted by the ecosystem. Part of these nutrients will be incorporated into lichen biomass and only become available upon death and decomposition, but a portion will be leached by precipitation and become deposited

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17

Cherif, Mehdi, and Michel Loreau. "Plant–herbivore–decomposer stoichiometric mismatches and nutrient cycling in ecosystems." Proceedings of the Royal Society B: Biological Sciences 280, no. 1754 (2013): 20122453. http://dx.doi.org/10.1098/rspb.2012.2453.

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Plant stoichiometry is thought to have a major influence on how herbivores affect nutrient availability in ecosystems. Most conceptual models predict that plants with high nutrient contents increase nutrient excretion by herbivores, in turn raising nutrient availability. To test this hypothesis, we built a stoichiometrically explicit model that includes a simple but thorough description of the processes of herbivory and decomposition. Our results challenge traditional views of herbivore impacts on nutrient availability in many ways. They show that the relationship between plant nutrient conten

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18

Cai, Zhi-quan, and Frans Bongers. "Contrasting nitrogen and phosphorus resorption efficiencies in trees and lianas from a tropical montane rain forest in Xishuangbanna, south-west China." Journal of Tropical Ecology 23, no. 1 (2007): 115–18. http://dx.doi.org/10.1017/s0266467406003750.

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Tropical montane rain forest is widely considered to be a highly threatened hotspot of global diversity (Brummitt & Nic Lughadha 2003), and one of the least understood humid tropical forest ecosystems in terms of nutrient cycling (Bruijnzeel & Proctor 1995). There is, therefore, an urgent need to improve our understanding of nutrient cycling processes in this ecosystem, including the absorption of nutrients (mainly N and P) from senescing leaves, which may be a key component of adaptive mechanisms that conserve limiting nutrients (Killingbeck 1996). Nutrients which are not resorbed, ho

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Pihlblad, Johanna, Louise C. Andresen, Catriona A. Macdonald, David S. Ellsworth, and Yolima Carrillo. "The influence of elevated CO₂ and soil depth on rhizosphere activity and nutrient availability in a mature Eucalyptus woodland." Biogeosciences 20, no. 3 (2023): 505–21. http://dx.doi.org/10.5194/bg-20-505-2023.

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Abstract. Elevated carbon dioxide (eCO2) in the atmosphere increases forest biomass productivity but only where soil nutrients, particularly nitrogen (N) and phosphorus (P), are not limiting growth. eCO2, in turn, can impact rhizosphere nutrient availability. Our current understanding of nutrient cycling under eCO2 is mainly derived from surface soil, leaving mechanisms of the impact of eCO2 on rhizosphere nutrient availability at deeper depths unexplored. To investigate the influence of eCO2 on nutrient availability in soil at depth, we studied various C, N, and P pools (extractable, microbia

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Gautam, Tilak Prasad, and Tej Narayan Mandal. "Storage and Flux of Nutrients in Disturbed and Undisturbed Tropical Moist Forest of Eastern Nepal." International Journal of Forestry Research 2018 (October 18, 2018): 1–12. http://dx.doi.org/10.1155/2018/8516321.

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The disturbance activities in tropical forests shrink the nutrient cycling between the vegetation and soil. To understand the nutrient cycling in undisturbed and disturbed stands of mixed deciduous tropical forest of eastern Nepal, plant biomass was estimated within seventy randomly established sampling plots. The biomass values were multiplied with nutrient concentration of respective parts to estimate the nutrient stocks. The nutrient concentrations varied widely amongst components. In trees, concentrations of all nutrients were highest in leaves followed in decreasing order by fine roots (&

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21

Le Mézo, Priscilla, Jérôme Guiet, Kim Scherrer, Daniele Bianchi, and Eric Galbraith. "Global nutrient cycling by commercially targeted marine fish." Biogeosciences 19, no. 10 (2022): 2537–55. http://dx.doi.org/10.5194/bg-19-2537-2022.

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Abstract. Throughout the course of their lives fish ingest food containing essential elements, including nitrogen (N), phosphorus (P), and iron (Fe). Some of these elements are retained in the fish body to build new biomass, which acts as a stored reservoir of nutrients, while the rest is excreted or egested, providing a recycling flux to water. Fishing activity has modified the fish biomass distribution worldwide and consequently may have altered fish-mediated nutrient cycling, but this possibility remains largely unassessed, mainly due to the difficulty of estimating global fish biomass and

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22

Ndlovu, Siphelele, Terence N. Suinyuy, María A. Pérez-Fernández, and Anathi Magadlela. "Encephalartos natalensis, Their Nutrient-Cycling Microbes and Enzymes: A Story of Successful Trade-Offs." Plants 12, no. 5 (2023): 1034. http://dx.doi.org/10.3390/plants12051034.

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Encephalartos spp. establish symbioses with nitrogen (N)-fixing bacteria that contribute to soil nutrition and improve plant growth. Despite the Encephalartos mutualistic symbioses with N-fixing bacteria, the identity of other bacteria and their contribution to soil fertility and ecosystem functioning is not well understood. Due to Encephalartos spp. being threatened in the wild, this limited information presents a challenge in developing comprehensive conservation and management strategies for these cycad species. Therefore, this study identified the nutrient-cycling bacteria in Encephalartos

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Moore, John C. "Nutrient Cycling and Food Web." Ecology 74, no. 3 (1993): 966–67. http://dx.doi.org/10.2307/1940823.

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Azcón-Aguilar, C., and J. M. Barea. "Nutrient cycling in the mycorrhizosphere." Journal of soil science and plant nutrition, ahead (2015): 0. http://dx.doi.org/10.4067/s0718-95162015005000035.

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Almeida, Cinara Xavier de, José Luiz Pita Junior, Danilo Eduardo Rozane, et al. "Nutrient cycling in mango trees." Semina: Ciências Agrárias 35, no. 1 (2014): 259. http://dx.doi.org/10.5433/1679-0359.2014v35n1p259.

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Sigleo, Anne C. "Primary Production and Nutrient Cycling." Ecology 87, no. 1 (2006): 264–65. http://dx.doi.org/10.1890/0012-9658(2006)87[264:ppanc]2.0.co;2.

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Holt, J. A., and R. J. Coventry. "Nutrient Cycling in Australian Savannas." Journal of Biogeography 17, no. 4/5 (1990): 427. http://dx.doi.org/10.2307/2845373.

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Chapman, P. "NUTRIENT CYCLING IN MARINE ECOSYSTEMS." Journal of the Limnological Society of Southern Africa 12, no. 1-2 (1986): 22–42. http://dx.doi.org/10.1080/03779688.1986.9639397.

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Tivy, Joy. "Nutrient cycling in agro-ecosystems." Applied Geography 7, no. 2 (1987): 93–113. http://dx.doi.org/10.1016/0143-6228(87)90044-0.

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Gomes Júnior, Diêgo, Marcos Vinicius Winckler Caldeira, Sustanis Horn Kunz, et al. "Seasonal litterfall and nutrients in an Atlantic Forest fragment." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 17, no. 1 (2022): 1–15. http://dx.doi.org/10.4136/ambi-agua.2775.

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Litter dynamics is one of the fundamental processes for the growth and maintenance of native forest fragments, being considered the main pathway for nutrient cycling in forests. Studies on litter production and nutrient content therefore provide insights that provide a better understanding of nutrient dynamics. This study identifies the seasonality and meteorological conditions that influence the quantity and return of nutrients through litter in an Atlantic Forest fragment. Litter sampling was carried out monthly in 12 permanent plots. Each plot contained 5 littertraps distributed systematica

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Dighton, John. "Nutrient cycling in different terrestrial ecosystems in relation to fungi." Canadian Journal of Botany 73, S1 (1995): 1349–60. http://dx.doi.org/10.1139/b95-397.

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Comparisons are made between nutrient cycling systems of arctic tundra, temperate forest, tropical forest, grassland, arable, and desert ecosystems. Detailed nutrient budgets are not given, but general differences between ecosystems are discussed primarily in relation to the role of soil fungi. General discussion reviews the impact of anthropogenic factors, including land management, pollution, and climate change on the role of fungi in nutrient cycling. Areas where further research is needed to complete our understanding of the functional aspects of fungi and nutrient cycling are highlighted

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Peterson, David L., and R. David Hammer. "Soil Nutrient Flux: A Component of Nutrient Cycling in Temperate Forest Ecosystems." Forest Science 32, no. 2 (1986): 318–24. http://dx.doi.org/10.1093/forestscience/32.2.318.

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Abstract Extractable nutrient levels in a floodplain forest soil varied significantly over the course of a year. Temporal variation in nutrient pools expressed as the ratio range/mean was in the following order: NH4-N &gt; NO3-N » extractable P &gt; exchangeable K &gt; exchangeable Mg &gt; exchangeable Ca. Lowest concentrations occurred during the summer months for all nutrients except NO3-N. The magnitude of this variation exceeded the size of several other nutrient fluxes within the ecosystem, which indicated that the soil system was a dynamic component of the floodplain fore

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Lin, T. C., P. L. Shaner, L. J. Wang, et al. "Effects of mountain agriculture on nutrient cycling at upstream watersheds." Hydrology and Earth System Sciences Discussions 12, no. 5 (2015): 4785–811. http://dx.doi.org/10.5194/hessd-12-4785-2015.

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Abstract. The expansion of agriculture to rugged mountains can exacerbate negative impacts of agriculture activities on ecosystem function. In this study, we monitored streamwater chemistry of four watersheds with varying proportions of agricultural lands (0.4, 3, 17, 22%) and rainfall chemistry of two of the four watersheds at Feitsui Reservoir Watershed in northern Taiwan to examine the effects of agriculture on watershed nutrient cycling. We found that the greater the proportions of agricultural lands, the higher the ion concentrations, which is evident for fertilizer-associated ions (NO3-,

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Corbett, D. R. "Resuspension and estuarine nutrient cycling: insights from the Neuse River Estuary." Biogeosciences Discussions 7, no. 2 (2010): 2767–98. http://dx.doi.org/10.5194/bgd-7-2767-2010.

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Abstract. For at least the past several decades, North Carolina's Neuse River Estuary (NRE) has been subject to water quality problems relating to increased eutrophication. Research studies initiated in the past several years have addressed the complex nutrient cycles in this system. Most of this research, however, is concerned with the nutrient processes of the water column and the passive diffusion processes of the benthic sedimentary environment. Resuspension of bottom sediments, by bioturbation, tides, or wind-generated waves, may have a significant effect on the flux of nutrients in an es

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Lambert, Marcia, and John Turner. "Nutrient distribution and cycling in a subtropical rainforest in New South Wales." Australian Journal of Botany 64, no. 2 (2016): 100. http://dx.doi.org/10.1071/bt14342.

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Subtropical rainforests in New South Wales (NSW) are distributed on the more fertile forest soils and are nutritionally distinct from the Eucalyptus forests in the same areas. The distribution, cycling of organic matter and nutrients and nutrient use efficiency in an Australian subtropical rainforest were studied and aspects were compared with reported Eucalyptus studies. The available nutrients were greatly in excess of the stand uptake or requirement. A single undisturbed plot within a research trial in mature forest was selected for the study. At the beginning of the study, the aboveground

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Lodhiyal, L. S., R. P. Singh, and S. P. Singh. "Productivity and nutrient cycling in poplar stands in central Himalaya, India." Canadian Journal of Forest Research 24, no. 6 (1994): 1199–209. http://dx.doi.org/10.1139/x94-158.

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Productivity and nutrient-use efficiency were investigated in plantations of similar age of poplar clone D121 (Populusdeltoides Marsh.) that differed mainly in plant density. The plantations were located in the Tarai belt (low-lying area with high water table) of the Indian Central Himalaya. The total net primary productivity of the high-density plantation (4 years old with 666 trees/ha) was conspicuously higher (32.4 tones•ha−1•year−1) than that of the low-density (20 tonnes•ha−1•year−1) plantation (5 years old with 400 trees/ha), while nutrient-use efficiency was similar in these plantations

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Kurihara, Carlos Hissao, Hamilton Kikuti, Flávio Ferreira da Silva Binotti, and Cesar José da Silva. "Nutrient accumulation, export and cycling in Jatropha curcas L ." Revista Ceres 63, no. 3 (2016): 361–70. http://dx.doi.org/10.1590/0034-737x201663030013.

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ABSTRACT The knowledge concerning nutrient accumulation rate allows defining the best amount and most appropriate time for its supply. Estimating nutrient amount in the aerial part of the plants is particularly important to species such as Jatropha curcas L., since there are no consistent calibration studies to indicate the amount of fertilizer to be applied. The objective of this study was to evaluate nutrient accumulation, export and cycling in Jatropha curcas. The experiment was carried out in Cassilândia, state of Mato Grosso do Sul, Brazil, during 52 months in a completely randomized desi

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Hu, Zhiyuan, Jiating Li, Kangwei Shi, et al. "Effects of Canada Goldenrod Invasion on Soil Extracellular Enzyme Activities and Ecoenzymatic Stoichiometry." Sustainability 13, no. 7 (2021): 3768. http://dx.doi.org/10.3390/su13073768.

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The rapid expansion of Canada goldenrod (Solidago canadensis L.) in China has drawn considerable attention as it may not only decrease vegetation diversity but also alter soil nutrient cycling in the affected ecosystems. Soil extracellular enzymes mediate nutrient cycling by catalyzing the organic matter decomposition; however, the mechanisms by which alien plant invasion may affect soil extracellular enzymes remain unclear. The objective of this study was to investigate the responses of soil extracellular enzyme activities and ecoenzymatic stoichiometry to S. canadensis invasion. Several extr

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Sims, J. T., N. Goggin, and J. McDermott. "Nutrient management for water quality protection: integrating research into environmental policy." Water Science and Technology 39, no. 12 (1999): 291–98. http://dx.doi.org/10.2166/wst.1999.0558.

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Agriculture's impacts on water quality have been the focus of basic and applied research in Delaware for more than 25 years. Research has examined nutrient cycling in soils, nutrient transport from soils to water, and the environmental consequences of ground water contamination and surface water eutrophication by nutrients. Much of the research has specifically been oriented towards the development of agricultural management practices to prevent the degradation of water quality by nutrients. Other research has focused on increasing our understanding of the chemical, physical, and biological pr

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Tuerena, Robyn E., Claire Mahaffey, Sian F. Henley, et al. "Nutrient pathways and their susceptibility to past and future change in the Eurasian Arctic Ocean." Ambio 51, no. 2 (2021): 355–69. http://dx.doi.org/10.1007/s13280-021-01673-0.

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AbstractClimate change is altering nutrient cycling within the Arctic Ocean, having knock-on effects to Arctic ecosystems. Primary production in the Arctic is principally nitrogen-limited, particularly in the western Pacific-dominated regions where denitrification exacerbates nitrogen loss. The nutrient status of the eastern Eurasian Arctic remains under debate. In the Barents Sea, primary production has increased by 88% since 1998. To support this rapid increase in productivity, either the standing stock of nutrients has been depleted, or the external nutrient supply has increased. Atlantic w

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Vitousek, Peter M., Grant Gerrish, Douglas R. Turner, Lawrence R. Walker, and Dieter Mueller-Dombois. "Litterfall and nutrient cycling in four Hawaiian montane rainforests." Journal of Tropical Ecology 11, no. 2 (1995): 189–203. http://dx.doi.org/10.1017/s0266467400008634.

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ABSTRACTThe mass of fine litterfall and nutrient circulation through litterfall were determined in four Melrosideros polymorpha/Cibotium spp.-dominated rainforests that differed in substrate age, parent material texture and annual precipitation on Kilauea and Mauna Loa volcanoes on the island of Hawaii. Three of the sites had rates of litterfall of 5.2 Mg ha−1 y−1; the fourth, which was on the most fertile soil, produced 7.0 Mg ha−1 y−1 of litterfall with higher concentrations of nitrogen and phosphorus. Tree ferns of the genus Cibotium cycled relatively large amounts of nitrogen, phosphorus a

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Reddy, H. Ramasubba. "Advances In Biotechnology For Enhancing Soil Fertility And Nutrient Cycling." African Journal of Biological Sciences 6, no. 6 (2024): 5610–28. http://dx.doi.org/10.48047/afjbs.6.6.2024.5610-5628.

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This paper aims to review the advances made in the field of Biotechnology that have enhanced the nutrient status of the soil especially nitrogen and phosphorus nutrients concerning biofertilizers, GMOs, and microbial inoculants.

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Corbett, D. R. "Resuspension and estuarine nutrient cycling: insights from the Neuse River Estuary." Biogeosciences 7, no. 10 (2010): 3289–300. http://dx.doi.org/10.5194/bg-7-3289-2010.

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Abstract. For at least the past several decades, North Carolina's Neuse River Estuary (NRE) has been subject to water quality problems relating to increased eutrophication. Research initiated in the past several years have addressed the nutrient processes of the water column and the passive diffusion processes of the benthic sedimentary environment. Resuspension of bottom sediments, by bioturbation, tides, or winds, may also have a significant effect on the flux of nutrients in an estuarine system These processes can result in the advective transport of sediment porewater, rich with nitrogen,

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Sharitt, Carrie Ann, and Michael J. Vanni. "Teaching Nutrient Cycling and Climate Change Concepts Using Excretion Experiments with Common Fish." American Biology Teacher 85, no. 9 (2023): 500–506. http://dx.doi.org/10.1525/abt.2023.85.9.500.

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Many high school students learn about nutrient cycling during biology, environmental science, and agriculture classes. These lessons often focus on soil and plants, and nutrient cycling is usually taught independently from climate change. Scientists know that animals, including fish, can have strong effects on nutrient cycling (i.e., nitrogen and phosphorus) in ecosystems. Additionally, research has shown that nitrogen and phosphorus excretion rates of animals increase with water temperatures. We worked with high school students to design and conduct nutrient excretion experiments using common

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Yang, Junhui, Anzhi Wang, Lidu Shen, et al. "The Impact of Canopy on Nutrient Fluxes through Rainfall Partitioning in a Mixed Broadleaf and Coniferous Forest." Forests 15, no. 4 (2024): 623. http://dx.doi.org/10.3390/f15040623.

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Rainfall constitutes the primary input in the nutrient flux within forest ecosystems. The forest canopy modulates this flux by partitioning rainfall and selectively absorbing or adding nutrients. In mixed forests, variation in tree species composition regulates rainwater chemical composition, potentially leading to spatial heterogeneity in nutrient distribution and influencing nutrient cycling processes. This study examined the partitioning of rainfall into throughfall and stemflow, as well as their associated nutrient concentrations and fluxes, in a mixed broadleaf and coniferous forest on Ch

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Proctor, J., and C. F. Jordan. "Nutrient Cycling in Tropical Forest Ecosystems." Journal of Applied Ecology 23, no. 3 (1986): 1070. http://dx.doi.org/10.2307/2403967.

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Vendramini, J. M. B., J. C. B. Dubeux Júnior, and M. L. Silveira. "Nutrient cycling in tropical pasture ecosystems." Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences 9, no. 2 (2014): 308–15. http://dx.doi.org/10.5039/agraria.v9i2a3730.

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Edwards, P. J., and C. F. Jordan. "Nutrient Cycling in Tropical Forest Ecosystems." Journal of Ecology 75, no. 1 (1987): 280. http://dx.doi.org/10.2307/2260554.

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Johnson, Dale W., Trine Sogn, and Sheila Kvindesland. "The nutrient cycling model: lessons learned." Forest Ecology and Management 138, no. 1-3 (2000): 91–106. http://dx.doi.org/10.1016/s0378-1127(00)00414-x.

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Quested, Helen M. "Parasitic plants—impacts on nutrient cycling." Plant and Soil 311, no. 1-2 (2008): 269–72. http://dx.doi.org/10.1007/s11104-008-9646-9.

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