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Thesis (M.S.)--University of Wisconsin--Stevens Point, 2008. / Submitted in partial fulfillment of the requirements of the degree Master of Science in Natural Resources (Hydrology Emphasis), College of Natural Resources. Includes bibliographical references (leaves 84-86).

Thesis (doctoral)--Delft University of Technology, 2007. / Vita. Includes bibliographical references (p. [99]-110).

Thesis (doctoral)--Delft University of Technology, 2007. / Vita. Includes bibliographical references (p. [99]-110).

Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 89-95). Also available on the World Wide Web.

The study's purpose was to determine the job satisfaction level of Virginia Soil and Water Conservation District (SWCD) employees during fiscal year 2007-2008. Employee characteristics were identified; three measures of job satisfaction were attained (intrinsic, extrinsic, general satisfaction); and satisfaction levels on 12 specific job aspects were determined. The relationship between job satisfaction and four independent variables (age, gender, education level, primary job responsibility) was assessed. The instrument consisted of an employee characteristics survey, the Minnesota Satisfaction Questionnaire (MSQ) 1977 Short-Form, derived from the MSQ 1967 Long-Form (Weiss, Dawis, England, & Lofquist, 1967), and a modified 2002 Virginia Association of Soil and Water Conservation Districts (VASWCD) survey. Descriptive research statistics were utilized. A total of 185 employees participated, which was an 80% response rate. The majority of employees were characterized as: non-Hispanic, white, female, average age 41 years, married with no children 18 and under living in the home, bachelor's degree, average tenure of 6.52 years, full-time, permanent position, average hourly wage of $14.45 and annual salary of $36,373.54, primary job responsibility "technical." The MSQ found respondents generally and intrinsically satisfied. Greater satisfaction was expressed for variety and social services. Overall respondents were undecided about extrinsic job aspects. Advancement was an area of dissatisfaction. The modified VASWCD survey found respondents satisfied overall. Respondents were "very satisfied" with work schedule, type of work, and board relationships. Employees were less satisfied with health insurance benefits, new employee orientation, and compensation. They were "dissatisfied" with career advancement opportunities and life insurance. Differences in total intrinsic, extrinsic, and general job satisfaction, as measured by the MSQ, based on the independent variables were determined. A one-way ANOVA and Tukey's post-hoc test were utilized. Since the population of this study violated Levene's Test of Homogeneity, the ANOVA could not be performed for age and intrinsic and general job satisfaction. The ANOVA was performed for all other variables. There was not a significant difference in extrinsic satisfaction among respondents of the various age groups. There were no significant differences in intrinsic, extrinsic, or general job satisfaction for the variables of gender, education level, or primary job responsibility. / Ph. D.

Taitung County is mountainous. Its geological structure is weak. Typhoon and heavy rain is frequent. Land erosion, landslide, and silt deposit in rivers is serious. In recent years, hilly areas are over-developed and conservation problem worsens. In typhoon and heavy rain, soil and other resources would be washed away and causes serious damage. The resources that people are relying on are vanishing. The purpose of this paper is to study the conservation of hilly areas, the management of river catchment areas, and the investigation and planning of the conservation of resources. This paper may help our people better understand the importance of conservation and t hey will be willing to work for a better Taitung Countye. This paper also studies the government conservation policies over the years and the their results, the farmers¡¦ understanding of the land, and conflict between the government and the farmers in land use in hilly areas. The study finds out that in managing the river catchment areas, government executive system is too complicated. Farmers do not appreciate the way the laws are implemented. They do not admit that their development cause water pollution or soil erosion. Rather, they believe that landslide and government policies in garbage dumping and road opening are to be blamed. Farmers are against most of the government policies especially in returning their land to government. There is a gap between government and farmer recognition. It is suggested that from now on, related personnel should investigate more and communicate more with people before preparing a policy. And since farmers are more willing to accept policies in subsidizing afforestation and soil protection, government should work on these issues.

Diss. (sammanfattning). Uppsala : Sveriges lantbruksuniv., 2003. / Härtill 4 uppsatser.

Mining operations lead to considerable land disturbance and accumulation of large amounts of waste rock that may contain elevated concentrations of hazardous substances. Without proper capping, they may have considerable negative environmental impact on different spheres of the Earth. Capping of waste rock with a soil cover re-creates the water and nutrient regimes required for the growth of native plants and returns biological productivity and biodiversity of the land to a condition similar to that existing before site disturbance. In many cases the area of disturbance is composed of coarse-textured materials with low water retention properties, which are not desirable in semi-arid zones. This study was conducted to determine (1) whether a considerable increase of water storage is possible after separation of coarse-textured soil into size fractions and layering them in such a way that the finer fraction overlies the coarser fraction; and (2) whether such soil covers are susceptible to preferential flow under various initial and boundary conditions and what influence this type of flow has on residence time. Four types of soil covers were constructed in chambers: homogeneous covers composed of natural sand, two-layered covers with abrupt and gradual interlayer transitions, and four layered soil covers with abrupt transitions. Soil water storage was measured at field capacity (FC). Soil covers were tested under two types of lower boundary conditions: gravel layer and -25-cm matric potential. Flow stability was assessed during intermittent and constant ponded infiltrations. Water storage capacities (WSCs) for soil covers with -25-cm matric potential at the bottom of a cover were additionally simulated in HYDRUS-1D. Water storage capacities increased with the number of layers under both lower boundary conditions. Two-layered covers with a transition layer had slightly lower water storage than the same cover without the transition, due to a decreased hydraulic contrast at the layer interface. Simulated WSCs under -25-cm matric potential at the bottom were in satisfactory agreement with measured WSCs. The wetting front was stable in the homogeneous cover under both initially dry and FC conditions and in the two-layered cover with a gradual transition under initially dry water content during intermittent ponded infiltration. Unstable flow was observed only in the two-layered soil cover under both initial water contents. Other covers were partially unstable under initially air-dry and FC conditions. Generally, the wetting front was more diffuse at FC. Flow in all covers was stable under constant ponded infiltration. The residence time of water increased with the increase in the number of layers under both types of infiltration. Results of the study show that WSC and residence time do increase with increasing number of layers in soil covers, where layers are composed of different fractions of coarse-textured soil. In addition, tested soil covers have shown limited susceptibility to preferential flow even when layered into finer-over-coarser soil systems.

Particulate P constitutes a significant portion of the total P found in surface runoff water. Water dispersed P-containing particles can travel long distances via surface runoff and reach water bodies causing decrease in water quality. The main objective of the study was to evaluate the potential facilitation of P transport by the water dispersed soil colloids (WDC) using three KY soils with a long-term record of poultry manure, and fertilizer P applications. Sequential fractionation for both whole soils and colloidal samples revealed that the WDC had a greater total and labile P content than the soil as a whole. Also, application of manure and fertilizer P seemed to decrease colloidal organic P fractions and increase the inorganic P fractions over the period of a growing season (May to September). Laboratory settling kinetics experiments were set up for the clay-colloidal fractions of the soils. It was shown that particulate P fractions paralleled WDC settling kinetics whereas dissolved P fractions remained in solution even after 36 hours. Field taken intact soil cores were leached with colloidal suspensions to test the effect of WDC on the vertical P movement. Results illustrated the preferential flow of particulate P though the macropores. When water was applied to the manure amended soil, dissolved P levels increased significantly over the control. WDC additions lowered dissolved P levels to the manure-amended columns, by sorbing to the WDC particles, but still greater than the dissolved P levels of the columns that had not been applied with manure.