The conflict between residential land and agriculture land in China is increasingly sharpened, especially when some urban development began to sprawl to the suburban and rural areas. In order to plan land resources properly, land suitability assessment is often conducted to determine which type of land use is most appropriate for a particular location. <br /><br /> The main objective of this study is to examine how land suitability assessment methods could be used in land planning processes in the Dianchi Drainage Area (DDA) in Southwest China to identify where future residential development should be located. The 1991 Toronto Waterfront Plan and the more recent 2005 Ontario Greenbelt Plan are examined and used to develop a framework which describes the potential for land suitability assessment in the DDA. Data limitations did not permit a suitability analysis to be completed for the DDA, however a description of methodologies for conducting residential land suitability analysis and required data are presented based on a review of relevant literature. The paper concludes with a discussion of the feasibility of land suitability in the DDA and other areas in China and also suggests opportunities for future research.

The conflict between residential land and agriculture land in China is increasingly sharpened, especially when some urban development began to sprawl to the suburban and rural areas. In order to plan land resources properly, land suitability assessment is often conducted to determine which type of land use is most appropriate for a particular location. <br /><br /> The main objective of this study is to examine how land suitability assessment methods could be used in land planning processes in the Dianchi Drainage Area (DDA) in Southwest China to identify where future residential development should be located. The 1991 Toronto Waterfront Plan and the more recent 2005 Ontario Greenbelt Plan are examined and used to develop a framework which describes the potential for land suitability assessment in the DDA. Data limitations did not permit a suitability analysis to be completed for the DDA, however a description of methodologies for conducting residential land suitability analysis and required data are presented based on a review of relevant literature. The paper concludes with a discussion of the feasibility of land suitability in the DDA and other areas in China and also suggests opportunities for future research.

Master of Landscape Architecture / Department of Landscape Architecture, Regional and Community Planning / Stephanie A. Rolley / This paper presents a model which identifies areas in state parks most susceptible to recreation related degradation. Factors of soil capability class rankings, slope, native vegetation presence, rangeland productivity, visitation, and revenue are overlaid in a weighted raster model to extract those land parcels within Glen Elder State Park, Kansas, which have the highest susceptibility to environmental degradation and greatest potential to generate high revenue. Park user characteristics stored in an attribute table are related to vulnerable parcels so park managers can develop management or mitigation strategies reflecting the strength of environmental, social, or economic interactions in an area.

Idag kan ses att allt mindre 3D-fastigheter bildas. För att bilda 3Dfastigheter ska en lämplighetsbedömning göras av lantmäterimyndigheten, där bland annat de allmänna lämplighetsvillkoren i kapitel 3 fastighetsbildningslagen ska beaktas. Fastighetsbildningslagens förarbeten och lagkommentar talar om att 3D-fastigheten som bildas ska bli ett lämpligt förvaltningsobjekt och samtidigt vara av påtaglig storlek. Det har visat sig att lantmäterimyndigheterna i vissa ärenden kan ha svårt att bedöma vad som är lämpligt utifrån storleksperspektivet och vad som kan anses vara påtaglig storlek. Studien tar sikte på hur lämpliga förvaltningsobjekt bedöms vid 3D-fastighetsbildning utifrån storleken och hur bedömningen kan påverkas av andra faktorer. För att uppnå målen med studien har enkätundersökning, intervjuer och en studie av förrättningsakter gjorts. Studien av förrättningsakter visar att det är svårt att utläsa något skäl till varför en 3D-fastighet ansetts lämplig. Enkätundersökningen och intervjuerna visar att bedömningen görs främst utifrån 3D-fastighetens ändamål och dess självständighet. Självständigheten innebär att fastigheten ska kunna fungera utan alltför många rättigheter, vara ekonomiskt stabil och fungera förvaltningsmässigt. Däremot har storleken en mycket liten betydelse för lämplighetsbedömningen. Slutsatsen är att lämpligheten för varje förvaltningsobjekt – 3D-fastighet – görs i enlighet med de allmänna lämplighetsvillkor som finns i kapitel 3 fastighetsbildningslagen och att storleken i sig inte har en överhängande betydelse vid bedömningen. Däremot kan bedömning påverkas av andra faktorer som beaktas individuellt i varje ärende. / Nowadays it can be seen that smaller and smaller 3D-property units are formed. To form 3D-property units the property formation procedure must have undergone an assessment of suitability where the general suitability conditions in the third chapter of the Property Formation Act should be taken into account. The legislative history and the commentary of the Property Formation Act speak of that the 3D-property units formed should be suitable management objects and be of palpable size. The size perspective on the 3D-property units has, in some cases, been proven challenging to assess for the cadastral authority. This study examines how the assessment of suitable management objects is performed and how the assessment can be affected by other factors. To achieve this, a survey, interviews and a study of property information procedure dossiers have been done. The study of dossiers shows that it is difficult to see reasons to why the 3D-property unit has been considered suitable. The survey and interviews show that the assessment is done with the 3D-property unit’s purpose and independence in mind. The independence is dependent on that the 3D-property unit can operate without too many rights, be economically stable and function alone from a management perspective. The size is only of small significance when it comes to the assessment. Conclusion is that the suitability for each management object, the 3D-property units, is done according to the general suitability conditions of the third chapter of the Property Formation Act, where the size doesn’t have an impending significance. However, other factors can affect the assessment; factors that are taken into account individually in each 3D-case.

Introduction: A mercury fact sheet that contains essential information and can be clearly understood by majority of adults is needed. In Fiscal Year 2009, EPA responded to more releases related to mercury than any other release. Since 2003, EPA has responded to more than 200 mercury releases. The American Association of Poison Control Centers estimate more than 50,000 people have been exposed to mercury vapors from 2003 to 2008, and 19,000 mercury cleanups have occurred from 2006 to 2008. Purpose: To determine what information needs to be included in a mercury fact sheet and how it should be created to inform adults who may be important in preventing and limiting exposure during accidental mercury release in the United States. Methods: The Flesch-Kincaid Grade Level Formula Data and the Suitability Assessment of Materials (SAM) tool were used to determine readability and appropriateness of twelve fact sheets related to elemental mercury. Length of fact sheets and illustration coverage percentage were also assessed. In addition, surveys were performed with four people who were involved in response to mercury releases in 2007 to 2009. The information they provided was also summarized to determine important elements that should be included in the fact sheets. Results: Information in a fact sheet should include the background of mercury, procedures in the event of a release, and ways to prevent releases. Based on the Flesch-Kincaid Grade Level, the literacy levels required to comprehend the 12 facts sheets was 11.4 on average. The majority of adults cannot comprehend the twelve fact sheets evaluated. Based on the evaluation of the material using SAM, none of the fact sheets scored higher than adequate with SAM. Only two fact sheets were written on one page and none of the fact sheets used relevant, simple illustrations with captions. Discussion: An effective mercury fact sheet needs to be about one page long and focuses on background, procedures, and prevention of exposure during a mercury release. Information obtained from interviews found that people focused the majority of their attention on the first page only. The fact sheet needs to be written at a sixth grade reading and to be able to receive a superior rating when assessed with SAM. This will ensure that the fact sheet is readable and comprehendible by the majority of adults and include the necessary information that the public must know regarding mercury. A new fact sheet was developed and assessed using both Flesch-Kincaid level and SAM and was found to have a 6.6 reading grade level and received a superior score under SAM. This fact sheet will be used by EPA along with the existing more comprehensive fact sheets at state agencies, and poison control centers for future releases and will be given to schools to educate and prevent future releases.

Businesses within the physical product domain seek to transform the way they manage new product development, through more flexible approaches. Traditionally, this was done through a fixed approach, characterized by linear and rigid workflow. In this context, however, a complete transition over to a flexible approach, characterized by iterative workflow and adaptability, is not feasible in most cases. To increase flexibility more suitably, hybrid approaches emerged, which combine elements from fixed- and flexible project management approaches. Existing literature lacks in the area of suitability assessment for when and how to combine these two approaches. Therefore, this exploratory study set out to identify factors that affect the suitability of any of the three approaches, fixed, flexible, or hybrid. The thesis took a qualitative approach, collecting data from semi-structured interviews and company documents. Interviewees included project managers and developers. Thematic analysis was used for data analysis. The findings revealed a total of 19 relevant factors within four primary areas, Communication &amp; Engagement, Knowledge &amp; Principles, Contextual Constraints, and Risk &amp; Change Management. Stakeholder- and Team Communication and engagement were shown to be highly influential and recurrent factors. The practical contributions of the thesis aim towards increasing the assessment capabilities amongst managers, trying to determine the suitability of any particular project management approach. By evaluating the factors, conditions regarding the characteristics of a project can be established and more appropriate management approaches can be adopted. / Tillverkande organisationer inom den fysiska produkt-domänen som strävar efter att förbättra sättet de hanterar utvecklingen av nya produkter, kan vända sig till flexibla metodiker. Traditionellt sett gjordes detta genom mer fasta metodiker som kännetecknas av linjära och stela arbetsflöden. I denna kontext är det oftast inte optimalt att helt övergå till ett flexibelt arbetssätt, som kännetecknas av iterativa arbetsflöden. För att öka flexibiliteten på ett mer lämpligt sätt har hybrida metoder utvecklats, vilket kombinerar element från både fasta och flexibla projektledningsmetoder. Den befintliga litteraturen brister när det kommer till lämplighetsbedömning för när och hur organisationer ska kombinera dessa två. Därför syftar denna explorativa studie till att identifiera faktorer som påverkar lämpligheten för någon av de tre arbetssätten: fast, flexibel eller hybrid. Studien använde sig av en kvalitativ forskningsmetodik och samlade in data genom semistrukturerade intervjuer och företagsdokument. Intervjupersonerna inkluderade projektledare och utvecklare inom studierelevanta områden. Analys av samtlig data skedde genom metoden Tematisk analys. Resultaten visade på totalt 19 relevanta faktorer inom fyra huvudsakliga områden: Kommunikation &amp; Engagemang, Kunskap &amp; Principer, Kontextuella Begränsningar samt Risk- &amp; Förändringshantering. Intressent- och Team Kommunikation &amp; Engagemang visade sig vara mycket påverkande och återkommande faktorer. Studiens praktiska bidrag syftar till att öka förmågan hos företagsledare att bedöma lämpligheten hos en specifik projektledningsmetod. Genom att utvärdera faktorerna kan förhållanden gällande ett projekts karaktärsdrag fastställas och mer lämpliga projektledningsmetoder tillämpas.

Microalgae are a diverse group of oxygenic photosynthetic microorganisms which show great promise as a source of biofuel. However, significant challenges still remain before microalgae can be considered a viable source of biofuel. The main current challenges are nutrient sourcing and recycling as well as downstream processing. The algal cell wall and especially the presence of an algaenan cell wall in some Chlorophyte algae could be an important variable in determining downstream processing costs but not much comparative research has been done to elucidate this. The first part of the present study focuses on the recently isolated alga Pseudochoricystis ellipsoidea (Trebouxiophyceae) and its improvement and assessment for biofuel production. Random mutagenesis and FACS screening protocols were developed for the isolation of pigment and cell wall mutants but despite considerable efforts no suitable mutants could be identified in the first half of this project. Two 500 L raceway ponds as well as an algal growth room and bubble column bioreactors were set up to facilitate algal research at the University of Bath and assess the performance of P. ellipsoidea in realistic culture conditions. P. ellipsoidea showed a maximum growth of 1.53 divisions day-1 in semi-open raceway ponds, resistance to contamination and a 30% lipid content, making it particularly suitable for raceway pond cultures. In the second part of this project six species of Chlorophyte (“green”) algae, three of which produced algaenan, were compared for suitability to growth in anaerobic digestate and municipal wastewater as well as cell wall strength, permeability and suitability to hydrothermal liquefaction. We found that anaerobic digestate was a good medium for the growth of all species independently of autoclaving and that non-autoclaved wastewater was a very challenging medium. Algaenan production did not affect cell disruption by ultrasonication but growth stage and cell wall thickness did. Lipid extraction kinetics by chloroform/methanol were greatly affected by algaenan, meaning that this material is relatively impermeable to organic solvents. Cell wall thickness, cell volume and lipid content also had an effect on lipid extraction kinetics but this was only measurable after 180 minutes of extraction. 8 Hydrothermal liquefaction showed high solid and low oil yields, very low sulphur (≤0.1 %) as well as a 1.1 % -1.8 % nitrogen content which is significantly lower than most algal HTL studies to date. This suggests that stationary stage algae are more difficult to process but give a cleaner biocrude and reduce the loss of nitrogen through incorporation in the oil. Significant opportunities for optimisation still exist in the HTL process.

Thesis (M.Sc. (Soil Science)) -- University of Limpopo, 2022 / In South Africa, land use planning has received limited attention in areas perceived as suitable for agricultural production. In the lack of reliable soil type and fertility status information, crop yields remain lower than the land’s potential, with subsequent land degradation. Despite this, studies that focused on land capability and soil suitability to date have not considered the spatial variability of the soil nutrients and factors influencing their variability. However, this information is key for site-specific soil management. Therefore, it is vital to link land capability and soi suitability with the spatial variability of soil nutrients as it opens opportunities for more rational management of the soil resources since soil nutrients directly affect crop growth and consequently yield. To address this issue, a study was conducted on a 12 ha banana plantation portion of the Makuleke farm. The main objectives of this study were to (1) survey, classify and characterise soils in order to derive and map land capability classes of Makuleke farm, (2) quantify the physical and chemical properties of the soils in order to derive and map the soil suitability of Makuleke farm for banana production, (3) assess the spatial variability and structure of soil nutrients across the Makuleke farm and (4) Identify the factors of control of the spatial variability of the soil nutrients across the Makuleke farm. To begin with, a field soil survey was conducted using transect walks complemented by auger observations to sub-divide the 12 ha banana plantation portion of the farm into varied soil mapping units. Thereafter, soil classification was done to group soils based on their morphological properties and pedological processes. During soil classification, a total of 12 representative profile pits (1.5 m × 1.5 m long × 2 m deep/limiting layer) were excavated, studied, described, and sampled. At each profile pit, three replicates samples were collected at 0 – 30 cm depth intervals giving rise to 36 bulk soil samples. From the gathered soil profile information, four soil units were thus delineated and identified across the 12 ha banana plantation. For soil fertility assessment, a grid sampling strategy at 50 × 50 m was adopted to collect the samples across the 12 ha banana plantation. A total of 27 composite samples were collected at the nodes of the grid, and thereafter bagged, labelled, and transported to the laboratory. In the laboratory, all collected samples were air-dried and sieved using a 2 mm sieve in preparation for soil physical and chemical properties analysis. The land capability assessment of Makuleke farm was done using the concepts and principles of the FAO framework for Land Evaluation (FAO, 1976), but adapted to South African conditions by Smith (2006). Soil suitability assessment was done using the FAO framework for Land Evaluation (FAO, 1976) coupled with the guidelines for rainfed agriculture (FAO, 1983) and the criteria proposed by Sys et al. (1993) and Naidu et al. (2006). To assess the spatial variability and structure of the soil nutrients across the farm, classical and geostatistical techniques were employed respectively. A correlation matrix was employed to identify key factors influencing the spatial variability of soil nutrients across the farm. For interpolation, ordinary kriging was used to generate soil nutrient spatial distribution maps. In this study, four soil forms were identified and classified as Hutton, Westleigh, Glenrosa, and Valsrivier, which are broadly distinguished as Lixisols, Plinthosols, Leptosols, and Cambisols. Land capability results revealed that 17% of the 12 ha portion of the farm has very high arable potential (I), 60% of the farm has medium arable potential (III), 6% has low arable potential (IV) and 17 % is non-arable (VI), which might explain the varied banana yields in the farm. Soil suitability analysis revealed that 12% of the 12 ha farm is highly suitable (S1), 34% is moderately suitable (S2), 38% is marginally suitable (S3) and 16% is permanently not suitable (N2) for banana production. The low arable and marginally suitable portion of the farm was under Valsrivier soils which were limited by its shallow depth, shallow rooting depth, acidic soil pH, low organic carbon (OC), and the fact that it was located on a steeper slope gradient. The non-arable and not suitable portion of the farm for banana production was under Glenrosa and it was limited by its location on a steep slope gradient and was characterised by shallow effective rooting depth, low OC, low clay content, and acidic soil pH. Classical statistical techniques revealed that phosphorus (P), potassium (K), calcium (Ca), zinc (Zn), manganese (Mn), and copper (Cu) content varied highly across the banana plantation, while magnesium (Mg) and total nitrogen (TN) varied moderately. In addition, the geostatistical analysis revealed that spatial dependency was weak (Ca, Cu, and TN), moderate (Mg and Zn), and strong (P, K, and Mn) for the different soil nutrients across the 12 ha banana plantation. Soil nutrients with strong spatial dependency have a good spatial structure and are easily manageable (in terms of fertilisation, liming, and irrigation) across the farm compared to the ones with weak spatial dependency which have a poor structure. This study also found that land attributes, which are soil type and topographic position were the main factors driving the spatial variability of the soil nutrients across the farm. In terms of soil type, soils such as Valsrivier and Glenrosa with 2:1 clay-type smectite were the ones that had nutrient content compared to soils with 1:1 clay-type kaolinite (e.g., Westleigh and Hutton). Higher nutrient contents were also observed in the footslope position compared to the middleslope of the farmland. Correlation analysis revealed that Mn was the key polyvalent cation influencing the spatial variability of P, K, and Zn. Soil pH and effective cation exchanges capacity (ECEC) were the key soil factors driving the spatial variability of Ca, while ECEC was the key factor affecting the spatial variability of Mg. Moreover, the spatial variability of soil Mn and Cu was driven by soil Cu and clay content, respectively. The kriged maps showed that P, Mg, Zn, and Mn were high in the northeast part and low in the northwest part of the farm. Similarly, K and Ca were low in the northwest part, but they were high in the south to the southwest part of the study area. Total nitrogen was high in the west part and low in the east-northeast part, while Cu was evenly distributed across the plantation. This study highlights the importance of prior land use planning (i.e., land capability and soil suitability) and fertility assessment for agricultural production. The research results obtained provide the actual reference state of the capability of the land for arable farming and soil suitability for banana production at Makuleke farm. Moreover, the research results provide the spatial variability and structure of the soil nutrients which have a greater impact on the growth and yield of bananas. The results obtained in this study will be useful for site-specific management of soil nutrients and other soil management practices (e.g., irrigation, fertilisation, liming, etc.), developing appropriate land use plans, and quantifying anthropogenic impacts on the soil system and thus improving land productivity. / National Research Foundation (NRF)