Global ETD Search

1	Soil aggregate and organic matter dynamics in reclaimed mineland soils Wick, Abbey Foster. January 2007 (has links) Thesis (Ph.D.)--University of Wyoming, 2007. / Title from PDF title page (viewed on July 26, 2010). Includes bibliographical references.
2	Soil and vegetation change on a coal mine 15 years after reclamation in the aspen parkland of Alberta Stanton-Kennedy, Tremayne 13 February 2009 (has links) To evaluate the outcomes of reclamation design, soil and plant community changes on an unmanaged, 15-year-old certified-reclaimed site were analysed and compared with an undisturbed reference location. Patterns were analysed using MRPP while change was measured with rmANOVA. Plant species were poor predictors of selected soil properties. Percent soil organic carbon increased (p = 0.032), while soil pH did not change. Overall plant community composition did not change in proportion of cover between a priori groups of seeded/unseeded species or between native/introduced species. Individual species did vary in amount of cover change between 1993 and 2007. A linear regression of richness versus area covered by native species determined that the Shannon index is not a suitable measurement for monitoring plant community change towards the reference ecosystem. These findings highlight the importance of initial design, and the potential additive role of landscape architects as part of reclamation planning. landscape analysis
3	Alteration of the soil mantle by strip mining in the Namaqualand Strandveld / Prinsloo, H. P. January 2005 (has links) Thesis (MScAgric)--University of Stellenbosch, 2005. / Bibliography. Also available via the Internet.
4	Využití půdní mikrostruktury pro sledování sukcesních změn v bioturbační činnosti půdní fauny na výsypkách po těžbě uhlí / Using of soil microstructure in study of soil fauna bioturbation in post mining sites Suchá, Linda January 2014 (has links) The paper follows up on previous analyses of changes in soil microstructure in the process of soil development on dumps around Sokolov, Czech Republic, using the soil thin section method. The distribution of structures in the topsoil of the profile was studied in two chronosequences, one overgrown with spontaneous vegetation and one reclaimed by alder planting. A comparison with historical data obtained at these locations 10 years ago was used, and, therefore, the same methods were also applied (Frouz et al., 2007b). The most distinct trend in the process of soil development over time, as observed through both a comparison of soil thin sections from various areas of chronosequence and changes in particular sites over time, is a gradual reduction of purely mineral structures and their replacement by organic matter - litter and its fragments, faecal pellets of arthropods, earthworms coprolites, and roots. This is illustrative of a high share of biogenic structures and a fundamental contribution of organisms to forming topsoil, a fact also pointed out by other authors. Keywords: Soil macrofauna; Soil microstructure; Soil thin section; Reclamation; Post-mining sites; Soil development; Earthworms
5	Soil Erosion and Sediment Control on the Reclaimed Coal Mine Lands of the Semi-arid Southwest Verma, Tika R., Thames, John L., Mills, John E. 16 April 1977 (has links) From the Proceedings of the 1977 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 15-16, 1977, Las Vegas, Nevada / Extensive disturbances are expected during the remainder of this century due to strip mining in the semi-arid West. Reclamation and revegetation of these disturbed areas is a slow process, primarily due to dry and harsh climatic conditions. Erosion and sediment losses are high. Monitoring of the soil erosion process is a crucial step in planning for a long lasting and stable rehabilitation of these disturbed areas. Erosion plots have been laid out to collect data for the Universal Soil Loss Equation for estimating soil loss from recontoured coal mine spoils. Effectiveness of different cultural and mechanical treatments for erosion control is also being evaluated. Since large-scale coal mining operation has just begun on the Black Mesa, preliminary data could be very effective and useful in Watershed Management planning. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Soil erosion Arizona Revegetation Watershed management Reclamation (Soil) Sediment control Black Mesa (Ariz) Degradation Land reclamation Strip mines Spoil banks Monitoring Land development Coal mining
6	Vodní režim půd rekultivovaných a nerekultivovaných výsypek po těžbě uhlí / Soil water regime of reclaimed and unreclaimed post mining heaps Cejpek, Jiří January 2018 (has links) This PhD thesis compares the water regime of reclaimed and unreclaimed spoil heaps after brown coal mining, with special regard to the development of hydrological properties of soils, which are determinant for the movement and retention of water in the soil. The basic influence on the supply of soil water has the technology of pouring the spoil heaps and aging, which co-regulates the development of vegetation. During the development of soil's spoil heaps increases field water capacity and water retention, but also increases the wilting point. These changes are related to the accumulation of organic matter in the soil and the degradation of claystones to particle size of physical clay. The development of the ability of the spoil heaps soils to bind water is greater in reclaimed areas, where the upper organomineral horizon develops more rapidly, but there is also a wilting point and water consumption. On unreclaimed area, the soil substrate develops more slowly. Overall, the differences in water regime between reclaimed and unreclaimed areas are small.

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