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947 Uppsatser om Forest inventories - Sida 41 av 64
Leaf area index in Vittelaria Paradoxa parklands in Burkina Faso estimated by light interception and leaf sampling
Burkina Faso as well as most sub-Saharan African countries struggle with providing food for a fast growing population. The dominating farming system is agroforestry parklands. Agroforestry parklands can broadly be defined as areas where scattered trees occur on farmlands as a result of selective clearing. The presence of trees in crop fields may in the long term have a positive effect on the production of annual crops. It is commonly discussed, but not proven, that the presence of trees leads to increased groundwater recharge due to higher infiltration capacity of the soil.
Utvärdering av Hultdins prototyp för portabel bro (drivningsbro) :
Stronger demand has been put on forestry to show environmental considerations during harvesting. This is especially for crossings of brooks with sensitive elements and great care should be observed when they are to be crossed during harvesting by logging machines. For that reason Hultdins has constructed a portable bridge that can be used for those occasions. The bridge has been developed in accordance with wishes from SCA forest, since they have a great deal of brooks in their forests and in private forests from where they buy part of their wood supply.
The aim for this report is to investigate if this portable bridge can be of interest for the forestry market. The research has been made at SCA skog in Medelpad and Norrskog in Medelpad.
Hur främjar förskollärare barns motorik i förskolan och hur viktig anser de att den är?
AbstractThis work is about children?s motor activity. You can often hear in media about sedentary children, and that one of the factors which contributed to this is computers and things like that. The main goal with this work is to find out how preschool teachers take care of children?s joy of movement and how they work to promote children?s progress of motor activity.
Kvalitetssäkring av servicelämnare för skogsbrukets arbetsmaskiner : Intervjuer och förslag till utveckling
In this study we have examined the possible quality standards and methods for applications with service workshops in the forest industry. The purpose of the methods presented here was to start the work of standarardising the maintenance service in the industry and be of use for service providers in their quality effort.The methods we used to accomplish the study were interviews and field visits together with a comprehensive literature research. Our results are presented in the form of four solution proposals: a standard based on existing SIS standards for terminology and key indicators, checklists that are filled in by mechanics with customer participation, the construction of a instructions database, and the implementation of the method 5s.We believe our suggestions can help the service providers in the four problem areas that we have identified: long term strategy, documentation, recruitment of competent technicians, and standard procedures in their operations. These improvements will be beneficial for both the service provider and the customer..
Utveckling av logistikflöde : En undersökning av införande av extern kittning av hydraulslang vid Komatsu Forest AB
Komatsu Forest AB tillverkar skogsmaskiner och aggregat. I monteringsprocessen är hydraulslangar en av komponenterna som hanteras och lagras per artikelnummer. Idag genomförs intern kittning då slangar plockas ur respektive lagerlösning mot en specifik monteringsoperation. Kittning innebär att delar och komponenter sorteras i set, så kallade kit, innan de levereras till monteringsoperationer. Genom extern kittning som utförs av leverantören kan eventuellt flödet av hydraulslang och utnyttjandet av ytan i anläggningen bli mer effektivt då kitten är färdiga när de anländer till anläggningen. Syftet med arbetet är att identifiera det mest produktiva och kostnadseffektiva arbetssättet gällande hantering av hydraulslangar från beställning till montage på maskin.
Utvärdering av traktplanering på Holmen Skog
This study has been performed with the help of forest machine operators in order to improve the forestry planning at Holmen Skog Örnsköldsvik-region.
For Holmen Skog forestry planning is basic for a successful forestry. In a survey I have investigated what can be improved in some areas that are planned for harvesting. The result of the investigation will be used to support the machine operators as much as possible. The study has generated 49.5 % of responses and because of this low response rate, no clear conclusions to anyone else except the responding machine operators can be drawn.
It has been proved that there are some details in the forestry planning system that are inadequate, such as marked routs for trails, tractor paths and buffer zones against streams.
The quality of forestry planning varies greatly between different locations, as much as 50 % of the responding machine operators thought so. Over 40 % of the responding machine operators claim that the information from Holmen is insufficient.
One thing that would improve the forestry planning within Holmen would be to educate all forestry planners and then do continuous follow-ups..
Miljöhänsyn vid offentlig upphandling :
One of the biggest challenges in the human history is to prevent environmental pollution. Everybody has an indirect or direct influence on the environment through his or her consumption. The stakeholders are not just interested in price and quality, they are also interested in the circumstances of production and how this affects the environment. By taking environmental concern in public procurement it is possible to speed up the environmental adjustment of services and products. Environmental awareness has become more and more self evident in the environmental work.
Småvatten då och nu : en förändringsstudie av småvatten i Skåne och deras kväveretentionsförmåga
Wetlands play an important role in the ecosystem. They reduce the impact of flow flux in the drainage area, acts as upholder of biodiversity, as an esthetic and recreational component in the landscape and they have the ability to reduce nutrients such as nitrogen, and help preventing eutrophication in costal areas.The number of wetlands in Scania have, due to the intensified agriculture been reduced to maximize the area suitable for crops.However since the mid 80th the consequences of this has been acknowledged, and many wetlands have been restored.This master?s thesis aim to see what impact this development have had on wetlands in Scania over the last 60 years. And also look at some of those factors important for the efficiency of nitrogen removal in wetlands. During the process a detailed manual for inventories of this sort was created.The material used to execute the inventory of wetlands where aerial photographs over Scania from the 1940th, 1980th and 2000.
Älgbetesinventering på Orsblecks viltvårdsområde
The purpose with this report is to compare moose browsing in young stands within a small game preservation, and if there are any differences between two areas.
The method used in the inventory is a local damage caused by moose browsing survey. It is suitable on areas that have more than 50 hectares but less than 250 hectares of young forest. Inventory of moose browsing is best done on bare ground in the spring and should preferably be done before the flushing begins at the pine.
Orsblecks game management area is divided into two different moose management areas, Noppikoski and Siljansringen. During the winter Siljansringen has a denser winter strain of moose, because of the moose seek out lower parts with less snow during the winter. This should also lead to the southernmost part should accommodate larger proportion of damages caused by browsing by moose.
Analys av individinriktad ekskogsskötsel i Blekinge : en metod för tillämpning i ett kontinuitetsskogsbruk?
Ett ökat brukande av skog enligt skötselprinciper som leder till skiktade beståndsstrukturer, en blandad trädslagssammansättning och kontinuerligt skogbeklädd mark har potential att öka den biologiska mångfalden och värdet för rekreation (Emborg m.fl. 2000, Berg m.fl. 1995, Mattsson & Li 1994, Holgen m.fl. 2000). I ljuset av detta, tillsammans med svårigheterna som finns att nå goda ekonomiska resultat vid skötsel av ädellövskog (Lindén & Ekö 2002), ses det idag som angeläget att uppmärksamma och studera alternativa skogsskötselmetoder (Cedergren 2008) .
I östra Blekinge har ett antal skogsägare under längre tid praktiserat en metod att sköta naturligt föryngrad ek i blandbestånd som går ut på att, mer eller mindre tidigt, frihugga ekhuvudstammar, och att dana kvalitet genom stamkvistning/beskärning.
Analys och beräkning av emissionsfaktorer för växthusgaser
An increased awareness about the global warming has created a demand for more information on how the climate is affected by different activities.This master thesis was initiated by Tricorona, a Swedish company that offers its customers analysis and calculation of their climate impact. Tricorona also supplies climate neutralisation with CERs, in accordance with the Kyoto protocol and controlled by the UN. This work demands updated emission factors for greenhouse gases. An emission factor gives information about the greenhouse gasintensity of a service or a product [kg CO2-eq./ functional unit].The purpose of this thesis is to examine how electricity, district heating, hotels, taxis, food and materials affect the climate and how emission factors for these areas can be calculated.This was done by reviewing and comparing different studies and by interviewing experts. The information was evaluated and recommendations on calculations and emission factors were made.The consumption of energy is the main source of greenhouse gas emissions for district heating, electricity, hotels, taxis and materials.
?Whatever he discovers in creatures he guides to the Creator? : En studie om hur vi kan förstå St. Franciskus som miljömedveten, A study of how we can understand St. Francis as being environmentally conscious
This study investigated how we can understand St. Francis as environmentally conscious. The study also presents where those elements can be found in St. Francis own documents and from documents that describe St. Francis.
Ekoturism i jordbrukslandskap - ett vinnande koncept? : en tvärvetenskaplig studie om kulturvärden och naturvärden på Sjögetorp
Ekoturism har utvecklats som ett alternativ till annan typ av turism, med inriktning på att undvika negativa effekter på lokala ekosystem. I Sverige finns ekoturism som bedrivs i
relativt orörda naturmiljöer, men också ekoturism som bedrivs i miljöer som påverkats av människan på olika sätt och som rymmer både kulturvärden och naturvärden.
På gården Sjögetorp i Östergötland bedrivs ekoturismverksamhet i familjeföretaget Urnatur.
Mitt syfte med studien var att undersöka vilka kulturvärden och naturvärden som finns på gården idag, och hur dessa värden hänger ihop med ekoturismen. Jag genomförde en
inventering av hela fastigheten där jag registrerade ägoslag och strukturer viktiga för kultur och naturvärden.
För mer information om gårdens skötsel och ekoturismverksamheten intervjuade jag ägarna. Jag undersökte också historiskt kartmaterial för att kunna sätta gårdens skötsel idag i perspektiv till hur jordbrukslandskapet sett ut historiskt.
I min inventering dokumenterade jag många olika typer av naturvärden, bland annat död ved i många former, hamlade träd, slåtterängar, betesängar och skog skött till förmån för lövträd. Kulturvärden som fanns var ofta kopplade till naturvärden, som till exempel slåtter, hamlade träd och skogsbete.
Strategisk/taktisk vägplan :
The purpose of this thesis was to create a strategic/tactical road access plan. This was done by designing an analytical method which gives the road manager a template to create long-term road access plans. The analytical method will help to identify and appraise roads to be upgraded and give information when it is time for building new roads.
The study method involved developing an analytical method. The method was comprised of five main parts: the harvest plan, analysis of the road network, transport costs, quality and storage costs and finally, identification of investment alternatives.
Orienterare, framtidens naturvårdare? : Inventering av markstörningar i samband med O-Ringen i Skåne 2014
As an increasingly rationalized forestry and agriculture have human interference in the form of tradition, grazing and use declined. There is a strong link between biodiversity and disturbance of the landscape. In sandy soils many insects and plants require exposed sand to survive while the disorder may contribute to seed dispersal in the woodlands. On behalf of O-Ringen Skåne 2014, a study of the interference from orienteering in sandy soil and the forest during competitions conducted. The aim is to clarify the interference of which orienteering runners contributes, through to inventory presence before and after the competitions in the bottom and field layer in three locations.