110 uppsatser · sida 4 av 8
… benthic macroinvertebrates. The chemical elements in lakes consist of total phosphorus, total nitrogen, quotient total nitrogen/total phosphorus, chemical oxygen demand, alkalinity and pH-value. The chemical elements in streams consist of area-specific losses of total phosphorus …
… example for a possible scenario for a future climate. By comparing levels of phosphorus in the summer of 2002 with a ten-year median value, a phosphorus related sensitivity to climate change has been analyzed for 55 Swedish lakes. This sensitivity has then been related to …
en kartläggning som ett steg i golfklubbens miljöarbete
… function of surface waters is that they can act as a nutrient trap by binding phosphorus and nitrogen. Our analyses showed that nutrient levels in the surface waters were high and that these nutrients generally originated from golfing activities, mainly the use of inappropriate …
The amount of various phosphorus (P) fractions in the sediment and the relationship between the amount of P and sediment particle size were investigated in a constructed wetland southwest of Linköping. Furthermore, the possible correlation between clay content in the sediment …
metodutveckling med GIS
… of data and geographic informationsystem (GIS) to identify areas with risk for phosphorus losses due to surfacerunoff. This tool can act as a decision support to decide where appropriatemeasures should be applied with the aim of reducing phosphorus losses and bythat the …
… aquire knowledge about the chemical soil conditions. Plant growth limited by phosphorus and low fertility are characteristic conditions for calcareous fens, whilst arable land usually is highly fertile and limited by nitrogen. The purpose of this study is to bring forth useful …
… of nutrients from agricultural land or effluents. Losses of particulate phosphorus through water erosion contribute to a great extent to this eutrophication. In the action plan for the water district cover crops are mentioned as a measure for reducing losses of phosphorus from …
… also pathogens are killed.The soil of the Aland Islands has a high content of phosphorus. Since 1995 there is anenvironmental program to which currently 95% of the island's farmers are connected.The program controls the use of fertilizers i.e. by setting maximum permitted levels …
… a well known environmental problem and implies an enrichment of the nutrients phosphorus (P) and nitrogen (N). Phosphorus is considered to be the most important component for the growth of aquatic plants and leads in too large quantities to an intensification of growth …
… was created for Eucalyptus urophylla. The examined nutrients were nitrogen, phosphorus and potassium. The nutrient budget was created for a control and a fertilized treatment which had been fertilized with; 830 kg ha-1 nitrogen, 408 kg ha-1 phosphorus and 736 kg ha-1 potassium …
Kväve- och fosforrening i anlagda våtmarker.
… this paper was to determine the efficiency of thesystem in reducing nitrogen, phosphorus, BOD5 and TSS (among other parameters) andgetting a further understanding on different kinds of constructed treatment wetlands as well astheir nitrogen and phosphorus removal processes. The …
The possibility for plants to utilize phosphorus in soil is a prerequisite for conducting agricultural production, both small scale and professional. Spreading of phosphorus fertilizers and manure is therefore seen as a necessity in today's agriculture in order to achieve high …
a study on growth conditions for the planted regeneration in a rainforest rehabilitation project
… might affect growth and mortality such as levels of organic carbon, nitrogen phosphorus and clay? The location of this study is in an east facing slope that in parts connect to a creak at the bottom. This area was planted in 2008. For all the planted trees in the area light …
En jämförelse mellan Lilluns ägg och andra svenska äggproducenter
… with other Swedish egg producers based on the flow of nutrients (nitrogen, phosphorus and potassium) in the egg production systems. The main focus in the report was the utilization rate of the forage and the excess of nutrients per kg egg. Additionally, the purpose was to …
rensning av stopp samt uppsamling och attityder
… urine solution from Nytorgsgatan contained 2.8 g of nitrogen, 0.22 g of phosphorus and 0.68 g of potassium per litre. These amounts correspond to 3.4 g of nitrogen, 0.27 g of phosphorus and 0.82 g of potassium per person per day and corresponded to 46, 40 and 49% respectively of …
