Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.06.011 |
Water quality effects of short-rotation pine management for bioenergy feedstocks in the southeastern United States | |
Griffiths, Natalie A.1,2; Jackson, C. Rhett3; Bitew, Menberu M.3,4; Fortner, Allison M.2; Fouts, Kevin L.3; McCracken, Kitty2; Phillips, Jana R.2 | |
2017-09-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 400 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Growing interest in renewable and domestically produced energy motivates the evaluation of woody bioenergy feedstock production. In the southeastern U.S., woody feedstock plantations, primarily of loblolly pine (Pinus taeda), would be intensively managed over short rotations (10-12 years) to achieve high yields. The primary differences in managing woody feedstocks for bioenergy production vs for pull/-sawtimber production include a higher frequency of pesticide and fertilizer applications, whole-tree removal, and greater ground disturbance (i.e., more bare ground during stand establishment and more frequent disturbance). While the effects of pulp/sawtimber production on water quality are well-studied, the effects of growing short-rotation loblolly pine on water quality and the efficacy of current forestry Best Management Practices (BMPs) have not been evaluated for this emerging management system. We used a watershed-scale experiment in a before-after, control-impact design to evaluate the effects of growing loblolly pine for bioenergy on water quality in the Upper Coastal Plain of the southeastern U.S. Intensive management for bioenergy production and implementation of current forestry BMPs occurred on similar to 50% of two treatment watersheds, with one reference watershed in a minimally managed pine forest. Water quality metrics (nutrient and pesticide concentrations) were measured in stream water, groundwater, and interflow (i.e., shallow subsurface flow) for a two-year pre-treatment period, and for 3.5 years posttreatment. After 3.5 years, there was little change to stream water quality. We observed a few occurrences of saturated overland flow, but sediments and water dissipated within the streamside management zones in over 75% of these instances. Stream nutrient concentrations were low and temporal changes mainly reflected seasonal patterns in nitrogen cycling. Nitrate concentrations increased in groundwater posttreatment to <2 mg N L-1, and these concentrations were below the U.S. drinking water standard (10 mg N L-1). Applied pesticides were almost always below detection in streams and groundwater. Overall, these findings highlight that current forestry BMPs can protect stream water quality from intensive pine management for bioenergy in the first 3.5 years. However, groundwater quality and transit times need to be considered in these low-gradient watersheds of the southeastern U.S. that are likely to become an important location for woody bioenergy feedstock production. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Intensive silviculture Short-rotation woody crops Nitrogen Concentrated flow tracks Interflow Surface water |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000406732100020 |
WOS关键词 | FORESTED FILTER STRIPS ; COASTAL-PLAIN ; SITE-PREPARATION ; LOBLOLLY-PINE ; PIEDMONT ; SEDIMENT ; ZONES ; NITROGEN ; HARVEST ; BIOMASS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23989 |
专题 | 气候变化 |
作者单位 | 1.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA; 2.Oak Ridge Natl Lab, Environm Sci Div, Oak Ridge, TN 37831 USA; 3.Univ Georgia, Warnell Sch Forestry & Nat Resources, Athens, GA 30602 USA; 4.USDA ARS, Southwest Watershed Res, Tucson, AZ 85719 USA |
推荐引用方式 GB/T 7714 | Griffiths, Natalie A.,Jackson, C. Rhett,Bitew, Menberu M.,et al. Water quality effects of short-rotation pine management for bioenergy feedstocks in the southeastern United States[J]. FOREST ECOLOGY AND MANAGEMENT,2017,400. |
APA | Griffiths, Natalie A..,Jackson, C. Rhett.,Bitew, Menberu M..,Fortner, Allison M..,Fouts, Kevin L..,...&Phillips, Jana R..(2017).Water quality effects of short-rotation pine management for bioenergy feedstocks in the southeastern United States.FOREST ECOLOGY AND MANAGEMENT,400. |
MLA | Griffiths, Natalie A.,et al."Water quality effects of short-rotation pine management for bioenergy feedstocks in the southeastern United States".FOREST ECOLOGY AND MANAGEMENT 400(2017). |
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