Influence of calcium availability on deposition of calcium
Influence of calcium availability on deposition of calcium carbonate and calcium oxalate crystals in the idioblasts of Morus australis Poir leaves ChiChih WU1, ShiangJiuun CHEN2, TsairBor YEN3, and LingLong KUOHUANG2,* 1 Institute of Plant and Microbial Biology, Academia Sinica, Nankang, Taipei, Taiwan The calcium (Ca) isotope system is potentially of great use for understanding biogeochemical processes at multiple scales in forest ecosystems, yet remains largely unexplored for this purpose In order to further our understanding of Ca behavior in forests, we examined two nearly adjacent hardwooddominated catchments with differing soil Ca concentrations, developed from crystalline bedrock Influences of calcium availability and tree species on influence Ca isotope distribution within the trees Intercatchment differences in Ca isotope distributions in soils and trees were minor, indicating that the results of our study may have broad transferability to studies of forest ecosystems in catchments developed on crystalline substrates elsewhere Keywords Calcium • c)44Ca Influences of Calcium Availability and Tree Species on Ca
The Influence of Soil Calcium Availability on Forest
Recently there has been a growing interest in the role of calcium (Ca 2+ ) availability affecting nitrate production and export in forested watersheds The relative abundance of calcium can affect soil pH, vegetation communities, litter quality, and consequently nutrient cycling rates We evaluated two nearly adjacent subcatchments, S14 and S15, in the Archer Creek Catchment in the Adirondack Calcium (Ca) and the toxic heavy metal cadmium (Cd) are antagonistic ions competing for uptake in plants when they cooccur in soil solutions, and high Ca concentrations can reduce the uptake of Cd in plants However, less is known about the effects of low Ca bioavailability on Cd uptake and translo Influence of low calcium availability on cadmium Influence of calcium addition on growth of highly purified syntrophic cultures degrading longchain Fatty acids Appl Environ Microbiol 1985 Mar;49(3):7025 doi: 101128/AEM4937027051985 Authors F Roy 1 , G Albagnac, E Samain Affiliation 1 Anjou Recherche, Chemin de la Influence of calcium addition on growth of highly
Influence of Calcium Scaling on Corrosion Behavior of
Calcium scaling is a serious problem encountered in the oil and gas industry because it is common that brines produced alongside oil and gas exhibit high concentrations of calcium ions, among others, which is expensive to remedy The precipitation of calcium salts on the internal wall of the pipelines may occur because of the physical and chemical changes as fluids are produced from Ectomycorrhizal fungi (EMF) can enhance drought resistance of host plants by increasing nutrient and water absorption Calcium (Ca) plays a central role in drought stress adaptation, yet it remains unclear how EMF influence Ca uptake of plants under drought stress We carried out a pot experiment in which Quercus acutissima seedlings were inoculated with or without the Ectomycorrhizal symbioses increase soil calcium Linking variations in calcium availability to effects by acid deposition is not straightforward First, effects by calcium scarcity on vertebrates might depend on the availability of other elements such as phosphorus and, possibly, aluminium (Scheuhammer, 1991)Effects of experimental acidification and liming on
Influence of thermal shock on the mitigation of
Calcium sulfate dehydrate (CaSO 4 2H 2 O) from Merck company was used to provide calcium sulfate aqueous solutions with the concentrations of 175 and 22 g/l The Calcium sulfate powder had the molecular weight of 17217 g/mol and density of 232 g/cm 3 at 20 °C Calcium depletion in northern hardwood forests as a result of decades of acidic deposition may have impacts on the forest floor invertebrate community 1 Stand age can also influence the soil calcium available for biological uptake by plants and animals2 Forest floor macroarthropods are part of the detrital food web, and calcium content of foliarInfluence of Soil Calcium and Stand Age on the Structure soil Ca and Al availability may lead to increased oxidative stress and disruptions in levels suggest a differential influence of soil treatments on specific soil communities Calcium depletion by acidic deposition is partially dependent on the capacity of the parent geology to replenish lost cations through weatheringEvaluating the Influences of Soil Calcium and Aluminum
Effects of declining calcium availability on the survival
Summary Calcium (Ca) decline is a severe and widespread phenomenon threatening softwater ecosystems around the world In north temperate lakes, these declines have been linked with declines in numerous freshwater taxa, in particular, crustacean zooplankton and crayfish The purpose of this study was to determine, under lab conditions, the effect of low Ca concentrations on survival, Nutrient availability in Northeastern US forests has been dramatically altered by anthropogenic activities Acid deposition has not only increased nitrogen (N) availability, but has also been linked to soil acidification and a loss of base cations, largely calcium (Ca) We are studying the longterm effects of a Ca addition on carbon (C) and N cycling in a forested catchment in the Adirondack Increased Calcium Availability Leads to Greater Forest Calcium is an abundant element in trees and a major cation in soil and surface waters Acid deposition has a substantial and potentially longlasting influence on leaching, depletion, and cycling of calcium in forest soils (Shortle and Smith 1988, Lawrence et al 1995, Likens et al 1996) Such findings highlight the belowground and atmospheric Acid Rain Impacts on Calcium Nutrition and Forest
Dietary calcium and health Theobald 2005
Calcium deposition slows down between the third and fourth years of life During childhood both males and females, in the developed world, grow in stature at an average rate of 55 cm/year and bone mineral density (BMD) increases by ∼1%/year (Matkovic et al 2004); rates of calcium deposition are proportional to the increase in stature Calcium (Ca) is an essential element for almost all living organisms Here, we examined global variation and controls of freshwater Ca concentrations, using Widespread diminishing anthropogenic effects on The deposition of calcium crystals in the joints and/or soft tissues can result in a variety of articular and periarticular disorders (Fig 1)The most common types of calcium crystals that are Calcium crystal deposition diseases — beyond gout
Effect of calcium glucoheptonate on proliferation and
Calcium is the key macromineral having a role in skeletal structure and function, muscle contraction, and neurotransmission Bone remodeling is maintained through a constant balance between calcium resorption and deposition Calcium deficiency is resolved through calcium supplementation, and among the supplements, watersoluble organic molecules attracted great pharmaceutical interestObjectives To develop evidencebased recommendations for management of calcium pyrophosphate deposition (CPPD) Methods A multidisciplinary guideline development group of 15 experts, representing 10 European countries, generated key propositions for management of CPPD using a Delphi consensus approach For each recommendation research evidence was searched systematicallyEULAR recommendations for calcium pyrophosphate Calcium depletion in northern hardwood forests as a result of decades of acidic deposition may have impacts on the forest floor invertebrate community 1 Stand age can also influence the soil calcium available for biological uptake by plants and animals2 Forest floor macroarthropods are part of the detrital food web, and calcium content of foliarInfluence of Soil Calcium and Stand Age on the Structure
Calcium in Ontario’s Inland Lakes
Figure 2 (a) Ca availability prior to human influence In this undisturbed ecosystem, calcium concentrations remained relatively stable because calcium outputs were balanced by inputs Specifically, mineral weathering of rocks and atmospheric deposition of calciumrich dust were the main sources of calcium soil Ca and Al availability may lead to increased oxidative stress and disruptions in levels suggest a differential influence of soil treatments on specific soil communities Calcium depletion by acidic deposition is partially dependent on the capacity of the parent geology to replenish lost cations through weatheringEvaluating the Influences of Soil Calcium and Aluminum Calcium is an abundant element in trees and a major cation in soil and surface waters Acid deposition has a substantial and potentially longlasting influence on leaching, depletion, and cycling of calcium in forest soils (Shortle and Smith 1988, Lawrence et al 1995, Likens et al 1996) Such findings highlight the belowground and atmospheric Acid Rain Impacts on Calcium Nutrition and Forest
Increased Calcium Availability Leads to Greater Forest
Nutrient availability in Northeastern US forests has been dramatically altered by anthropogenic activities Acid deposition has not only increased nitrogen (N) availability, but has also been linked to soil acidification and a loss of base cations, largely calcium (Ca) We are studying the longterm effects of a Ca addition on carbon (C) and N cycling in a forested catchment in the Adirondack Calcium deposition slows down between the third and fourth years of life During childhood both males and females, in the developed world, grow in stature at an average rate of 55 cm/year and bone mineral density (BMD) increases by ∼1%/year (Matkovic et al 2004); rates of calcium deposition are proportional to the increase in statureDietary calcium and health Theobald 2005 Effects of different calcium sources on the mineralization and sand curing of CaCO 3 by carbonic anhydraseproducing bacteria Ling Pan a, Qiongfang Li * ab, Yi Zhou * c, Na Song a, Lujia Yu a, Xuhui Wang a, Ke Xiong a, LikSen Yap a and Jianlin Huo a a Life Science and Engineering College, Southwest University of Science and Technology, Mianyang , ChinaEffects of different calcium sources on the
Calcium crystal deposition diseases — beyond gout
The deposition of calcium crystals in the joints and/or soft tissues can result in a variety of articular and periarticular disorders (Fig 1)The most common types of calcium crystals that are page 1 q 3 z srfc s' {^3«^r2 the effects of age upon calcium f absorption, deposition and ^ exchange in animals c t by samuel leroy hansard a dissertation presented to the graduate council of the university of florida in partial fulfilment of the requirements for the degree of doctor of philosophy university of florida june, 1953The effects of age upon calcium absorption, Objectives To develop evidencebased recommendations for management of calcium pyrophosphate deposition (CPPD) Methods A multidisciplinary guideline development group of 15 experts, representing 10 European countries, generated key propositions for management of CPPD using a Delphi consensus approach For each recommendation research evidence was searched systematicallyEULAR recommendations for calcium pyrophosphate