Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa8fdb |
Estimating aboveground live understory vegetation carbon in the United States | |
Johnson, Kristofer D.1; Domke, Grant M.2; Russell, Matthew B.3; Walters, Brian2; Hom, John1; Peduzzi, Alicia1; Birdsey, Richard1; Dolan, Katelyn4; Huang, Wenli4 | |
2017-12-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Despite the key role that understory vegetation plays in ecosystems and the terrestrial carbon cycle, it is often overlooked and has few quantitative measurements, especially at national scales. To understand the contribution of understory carbon to the United States (US) carbon budget, we developed an approach that relies on field measurements of understory vegetation cover and height on US Department of Agriculture Forest Service, Forest Inventory and Analysis (FIA) subplots. Allometric models were developed to estimate aboveground understory carbon. A spatial model based on stand characteristics and remotely sensed data was also applied to estimate understory carbon on all FIA plots. We found that most understory carbon was comprised of woody shrub species (64%), followed by nonwoody forbs and graminoid species (35%) and seedlings (1%). The largest estimates were found in temperate or warm humid locations such as the Pacific Northwest and southeastern US, thus following the same broad trend as aboveground tree biomass. The average understory aboveground carbon density was estimated to be 0.977 Mg ha(-1), for a total estimate of 272 Tg carbon across all managed forest land in the US (approximately 2% of the total aboveground live tree carbon pool). This estimate is more than twice as low as previous FIA modeled estimates that did not rely on understory measurements, suggesting that this pool may currently be overestimated in US National Greenhouse Gas reporting. |
英文关键词 | understory forest carbon allometric models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417925700004 |
WOS关键词 | FOREST ECOSYSTEMS ; TEMPERATE FORESTS ; BOREAL ; DIVERSITY ; DYNAMICS ; BIOMASS ; COVER ; PRODUCTIVITY ; DISTURBANCE ; LITTER |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/32054 |
专题 | 气候变化 |
作者单位 | 1.US Forest Serv, Northern Res Stn, Newtown Sq, PA 19073 USA; 2.US Forest Serv, Northern Res Stn, St Paul, MN USA; 3.Univ Minnesota, Dept Forest Resources, St Paul, MN USA; 4.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA |
推荐引用方式 GB/T 7714 | Johnson, Kristofer D.,Domke, Grant M.,Russell, Matthew B.,et al. Estimating aboveground live understory vegetation carbon in the United States[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(12). |
APA | Johnson, Kristofer D..,Domke, Grant M..,Russell, Matthew B..,Walters, Brian.,Hom, John.,...&Huang, Wenli.(2017).Estimating aboveground live understory vegetation carbon in the United States.ENVIRONMENTAL RESEARCH LETTERS,12(12). |
MLA | Johnson, Kristofer D.,et al."Estimating aboveground live understory vegetation carbon in the United States".ENVIRONMENTAL RESEARCH LETTERS 12.12(2017). |
条目包含的文件 | 条目无相关文件。 |
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