| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.3390/rs11050510 |
| Performance of Laser-Based Electronic Devices for Structural Analysis of Amazonian Terra-Firme Forests. | |
| Pereira I; do Nascimento H; Vicari M; Disney M; DeLucia E; Domingues T; Kruijt B; Lapola D | |
| 发表日期 | 2019 |
| 出处 | Remote Sensing 11 (5): e510 |
| 出版年 | 2019 |
| 语种 | 英语 |
| 摘要 | Tropical vegetation biomass represents a key component of the carbon stored in global forest ecosystems. Estimates of aboveground biomass commonly rely on measurements of tree size (diameter and height) and then indirectly relate, via allometric relationships and wood density, to biomass sampled from a relatively small number of harvested and weighed trees. Recently, however, novel in situ remote sensing techniques have been proposed, which may provide nondestructive alternative approaches to derive biomass estimates. Nonetheless, we still lack knowledge of the measurement uncertainties, as both the calibration and validation of estimates using different techniques and instruments requires consistent assessment of the underlying errors. To that end, we investigate different approaches estimating the tropical aboveground biomass in situ. We quantify the total and systematic errors among measurements obtained from terrestrial light detection and ranging (LiDAR), hypsometer-based trigonometry, and traditional forest inventory. We show that laser-based estimates of aboveground biomass are in good agreement (<10% measurement uncertainty) with traditional measurements. However, relative uncertainties vary among the allometric equations based on the vegetation parameters used for parameterization. We report the error metrics for measurements of tree diameter and tree height and discuss the consequences for estimated biomass. Despite methodological differences detected in this study, we conclude that laser-based electronic devices could complement conventional measurement techniques, thereby potentially improving estimates of tropical vegetation biomass. |
| 主题 | Ecosystems Services and Management (ESM) |
| 关键词 | carbon storage central-eastern Amazonia forest structure terra-firme forest terrestrial laser scanning light detection and ranging (LiDAR) |
| URL | http://pure.iiasa.ac.at/id/eprint/15776/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/131623 |
| 推荐引用方式 GB/T 7714 | Pereira I,do Nascimento H,Vicari M,et al. Performance of Laser-Based Electronic Devices for Structural Analysis of Amazonian Terra-Firme Forests.. 2019. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| remotesensing-11-005（6339KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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