Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/6438624 |
| 报告编号 | WHC-EP-0067 |
| 来源ID | OSTI_ID: 6438624 |
| Barrier erosion control test plan: Gravel mulch, vegetation, and soil water interactions | |
| Waugh, W.J.; Link, S.O. (Pacific Northwest Lab., Richland, WA (USA)) | |
| 英文摘要 | Soil erosion could reduce the water storage capacity of barriers that have been proposed for the disposal of near-surface waste at the US Department of Energy's Hanford Site. Gravel mixed into the top soil surface may create a self-healing veneer that greatly retards soil loss. However, gravel admixtures may also enhance infiltration of rainwater, suppress plant growth and water extraction, and lead to the leaching of underlying waste. This report describes plans for two experiments that were designed to test hypotheses concerning the interactive effects of surface gravel admixtures, revegetation, and enhanced precipitation on soil water balance and plant abundance. The first experiment is a factorial field plot set up on the site selected as a soil borrow area for the eventual construction of barriers. The treatments, arranged in a a split-split-plot design structure, include two densities of gravel admix, a mixture of native and introduced grasses, and irrigation to simulate a wetter climate. Changes in soil water storage and plant cover are monitored with neutron moisture probes and point intercept sampling, respectively. The second experiment consists of an array of 80 lysimeters containing several different barrier prototypes. Surface treatments are similar to the field-plot experiment. Drainage is collected from a valve at the base of each lysimeter tube, and evapotranspiration is estimated by subtraction. The lysimeters are also designed to be coupled to a whole-plant gas exchange system that will be used to conduct controlled experiments on evapotranspiration for modeling purposes. 56 refs., 6 figs., 8 tabs. |
| 出版年 | 1988 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES ; 54 ENVIRONMENTAL SCIENCES ; EROSION CONTROL ; FIELD TESTS ; BIOLOGICAL EFFECTS ; ENVIRONMENTAL IMPACTS ; GROUND COVER ; HANFORD RESERVATION ; IRRIGATION ; LEACHING ; LYSIMETERS ; MONITORING ; PLANT GROWTH ; RADIOACTIVE WASTE DISPOSAL ; RAIN ; REVEGETATION ; SOILS ; ATMOSPHERIC PRECIPITATIONS ; CONTROL ; DISSOLUTION ; GROWTH ; MANAGEMENT ; MEASURING INSTRUMENTS ; NATIONAL ORGANIZATIONS ; SEPARATION PROCESSES ; TESTING ; US DOE ; US ERDA ; US ORGANIZATIONS ; WASTE DISPOSAL ; WASTE MANAGEMENT 052002* -- Nuclear Fuels-- Waste Disposal & Storage ; 540210 -- Environment, Terrestrial-- Basic Studies-- (1990-) |
| URL | http://www.osti.gov/scitech/servlets/purl/6438624 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/264023 |
| 推荐引用方式 GB/T 7714 | Waugh, W.J.,Link, S.O. . Barrier erosion control test plan: Gravel mulch, vegetation, and soil water interactions,1988. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
