Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/6677130 |
| 报告编号 | COO-4018-5 |
| 来源ID | OSTI_ID: 6677130 |
| Revegetation research on oil shale lands in the Piceance Basin | |
| Redente, E.F.; Cook, C.W. | |
| 英文摘要 | The overall objective of this project is to study the effects of various reclamation practices on above- and belowground ecosystem development associated with disturbed oil shale lands in northwestern Colorado. Plant growth media that are being used in field test plots include retorted shale, soil over retorted shale, subsoil materials, and surface disturbed topsoils. Satisfactory stands of vegetation failed to establish on unleached retorted shale during two successive years of seeding. All seedings with soil over retorted shale were judged to be successful at the end of three growing seasons, but deep-rooted shrubs that depend upon subsoil moisture may have their growth hampered by the retorted shale substrate. Natural revegetation on areas with various degrees of disturbance shows that natural invasion and succession was slow at best. Invasion of species on disturbed topsoil plots showed that after three years introduced seed mixtures were more effective than native mixtures in occupying space and closing the community to invading species. Fertilizer appears to encourage the invasion of annual plants even after the third year following application. Long-term storage of topsoil without vegetation significantly decreases the mycorrhizal infection potential and, therefore, decreases the relative success of aboveground vegetation and subsequent succession. Ecotypic differentation related to growth and competitive ability, moisture stress tolerance, and reproductive potential have been found in five native shrub species. Germplasm sources of two grasses and two legumes, that have shown promise as revegetation species, have been collected and evaluated for the production of test seed. Fertilizer (nitrogen) when added to the soil at the time of planting may encourage competition from annual weeds to the detriment of seeded species. |
| 出版年 | 1981 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 01 COAL, LIGNITE, AND PEAT ; 54 ENVIRONMENTAL SCIENCES ; LAND RECLAMATION ; FIELD TESTS ; REVEGETATION ; OIL SHALE MINING ; PICEANCE CREEK BASIN ; CHEMICAL PROPERTIES ; COLORADO ; DATA COMPILATION ; DEPTH ; FERTILIZERS ; GERMINATION ; GRASS ; IRRIGATION ; LEGUMINOSAE ; MICROORGANISMS ; MIXTURES ; MYCORRHIZAS ; NITROGEN FIXATION ; PLANT GROWTH ; PLANTS ; RETORTS ; SEEDS ; SOILS ; SPENT SHALES ; WEEDS ; CHEMICAL REACTORS ; DATA ; DIMENSIONS ; DISPERSIONS ; DISTILLATION EQUIPMENT ; EQUIPMENT ; GROWTH ; INFORMATION ; MINING ; NORTH AMERICA ; NUMERICAL DATA ; ROCKY MOUNTAIN REGION ; TESTING ; USA 010900* -- Coal, Lignite, & Peat-- Environmental Aspects ; 510500 -- Environment, Terrestrial-- Site Resource & Use Studies-- (-1989) |
| URL | http://www.osti.gov/scitech/servlets/purl/6677130 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/262973 |
| 推荐引用方式 GB/T 7714 | Redente, E.F.,Cook, C.W.. Revegetation research on oil shale lands in the Piceance Basin,1981. |
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