Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/6467844 |
| 报告编号 | ORNL/TM-11615 |
| 来源ID | OSTI_ID: 6467844 |
| Evaluation of the potential for using old-field vegetation as an energy feedstock: Biomass yield, chemical composition, environmental concerns, and economics | |
| Johnston, J.W. Jr. | |
| 英文摘要 | The major focus of current research on production of biomass for use as energy feedstock involves selection of species and genotypes best suited for specific regions of the United States and development of crop management techniques that maximize biomass productivity while minimizing environmental impacts and economic costs. The two experimental sites, and abandoned soybean field (AS) and an abandoned pasture (AP) were studied. At the AS site, the effects of two harvest frequencies (1 or 2 harvests annually), two nitrogen fertilizer treatments (1 or 2 harvests annually), two nitrogen fertilizer treatments (0 or 87 kg{center dot}ha{sup {minus}1}{center dot}yr{sup {minus}1}), and two phosphorous fertilizer treatments (0 or 111 kg{center dot}ha{sup {minus}1}{center dot}yr{sup {minus}1}) were determined. At the AP site, the effects of two harvest treatments (1 or 2 harvests annually), two fertilizer treatments (56:56:135 kg of N:P:K{center dot}ha{sup {minus}1}{center dot}yr{sup {minus}1}), and two lime treatments (0 or 4600 kg{center dot}ha{sup {minus}1}{center dot}yr{sup {minus}1}) were determined. At both sites, treatments were arranged in a randomized complete block 2 {times} 2 {times} 2 factorial experiment. The results of this research indicated that old-field vegetation is: (1) sufficiently productive to provide significant quantities of energy feedstock; (2) chemically suitable as an energy feedstock; (3) environmentally benign with respect to impacts related to soil erosion and nutrient depletion; (4) relatively unresponsive to fertilizer and lime inputs; and (5) economically competitive with other biomass energy feedstock candidates. 38 refs., 8 figs., 68 tabs. |
| 出版年 | 1990 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 09 BIOMASS FUELS ; 29 ENERGY PLANNING, POLICY AND ECONOMY ; BIOMASS PLANTATIONS ; EVALUATION ; BIOMASS ; CALCIUM ; CELLULOSE ; CHEMICAL COMPOSITION ; CHEMICAL FEEDSTOCKS ; COST ; ECONOMICS ; ENVIRONMENTAL IMPACTS ; LIGNIN ; MAGNESIUM ; NITROGEN ; PASTURES ; PHOSPHORUS ; PLANTS ; POTASSIUM ; RENEWABLE ENERGY SOURCES ; SODIUM ; SOYBEANS ; ALKALI METALS ; ALKALINE EARTH METALS ; CARBOHYDRATES ; ELEMENTS ; ENERGY SOURCES ; FOOD ; METALS ; NONMETALS ; ORGANIC COMPOUNDS ; POLYSACCHARIDES ; SACCHARIDES ; VEGETABLES 090700* -- Biomass Fuels-- Resources-- (1990-) ; 091000 -- Biomass Fuels-- Properties & Composition-- (1990-) ; 299000 -- Energy Planning & Policy-- Unconventional Sources & Power Generation ; 095000 -- Biomass Fuels-- Environmental Aspects-- (1990-) ; 093000 -- Biomass Fuels-- Economic, Industrial, & Business Aspects-- (1990-) |
| URL | http://www.osti.gov/scitech/servlets/purl/6467844 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/264273 |
| 推荐引用方式 GB/T 7714 | Johnston, J.W. Jr.. Evaluation of the potential for using old-field vegetation as an energy feedstock: Biomass yield, chemical composition, environmental concerns, and economics,1990. |
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