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DOI | 10.1073/pnas.1904154116 |
Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity | |
Batista, Carla E.1,2; Ye, Jianhuai3; Ribeiro, Igor O.1,2; Guimaraes, Patricia C.1,2; Medeiros, Adan S. S.1,2,4; Barbosa, Rafael G.2; Oliveira, Rafael L.2; Duvoisin, Sergio, Jr.1,2; Jardine, Kolby J.5; Gu, Dasa6,10; Guenther, Alex B.6; McKinney, Karena A.7; Martins, Leila D.8; Souza, Rodrigo A. F.1,2; Martin, Scot T.3,9 | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2019 |
卷号 | 116期号:39页码:19318-19323 |
文章类型 | Article |
语种 | 英语 |
国家 | Brazil; USA; Peoples R China |
英文摘要 | The emissions, deposition, and chemistry of volatile organic compounds (VOCs) are thought to be influenced by underlying landscape heterogeneity at intermediate horizontal scales of several hundred meters across different forest subtypes within a tropical forest. Quantitative observations and scientific understanding at these scales, however, remain lacking, in large part due to a historical absence of canopy access and suitable observational approaches. Herein, horizontal heterogeneity in VOC concentrations in the near-canopy atmosphere was examined by sampling from an unmanned aerial vehicle (UAV) flown horizontally several hundred meters over the plateau and slope forests in central Amazonia during the morning and early afternoon periods of the wet season of 2018. Unlike terpene concentrations, the isoprene concentrations in the near-canopy atmosphere over the plateau forest were 60% greater than those over the slope forest. A gradient transport model constrained by the data suggests that isoprene emissions differed by 220 to 330% from these forest subtypes, which is in contrast to a 0% difference implemented in most present-day biosphere emissions models (i.e., homogeneous emissions). Quantifying VOC concentrations, emissions, and other processes at intermediate horizontal scales is essential for understanding the ecological and Earth system roles of VOCs and representing them in climate and air quality models. |
英文关键词 | isoprene emissions landscape heterogeneity intermediate horizontal scales Amazon tropical forest UAV measurements |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000487532900023 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; MEGAN MODEL ; SEGREGATION ; DIVERSITY ; AEROSOLS ; GASES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/205181 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Natl Inst Amazonian Res, Postgrad Program Climate & Environm, BR-69060001 Manaus, Amazonas, Brazil; 2.Amazonas State Univ, Sch Technol, BR-69065020 Manaus, Amazonas, Brazil; 3.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 4.Amazonas State Univ, Adv Study Ctr Tefe, BR-69553100 Tefe, Amazonas, Brazil; 5.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Berkeley, CA 94720 USA; 6.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 7.Colby Coll, Dept Chem, Waterville, ME 04901 USA; 8.Univ Tecnol Fed Parana, Dept Chem, BR-86047125 Londrina, Parana, Brazil; 9.Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA; 10.Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Batista, Carla E.,Ye, Jianhuai,Ribeiro, Igor O.,et al. Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(39):19318-19323. |
APA | Batista, Carla E..,Ye, Jianhuai.,Ribeiro, Igor O..,Guimaraes, Patricia C..,Medeiros, Adan S. S..,...&Martin, Scot T..(2019).Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(39),19318-19323. |
MLA | Batista, Carla E.,et al."Intermediate-scale horizontal isoprene concentrations in the near-canopy forest atmosphere and implications for emission heterogeneity".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.39(2019):19318-19323. |
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