Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.05.057 |
Assessment of multi-wavelength SAR and multispectral instrument data for forest aboveground biomass mapping using random forest kriging | |
Chen, Lin1,2,3; Wang, Yeqiao3; Ren, Chunying1; Zhang, Bai1; Wang, Zongming1 | |
2019-09-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 447页码:12-25 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Aboveground biomass (AGB) plays an important role in carbon cycle. Assessment of AGB presents a challenge in forest management. Reported studies have explored the potential of synthetic aperture radar (SAR) and multi spectral instrument (MSI) data using random forest (RF) approach in AGB mapping. However, how AGB prediction would be affected by using data from different sources based on random forest kriging (RFK), which integrates RF and estimates residuals by ordinary kriging (OK), deserves further exploration. This study reported an assessment of multisensor data from Advanced Land Observing Satellite 2 (ALOS-2) L band and Sentinel-1C band SAR, Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM), and Sentinel-2 MSI for forest AGB mapping using RFK. The effectiveness of 97 predictor variables derived from multisensor data was evaluated for AGB prediction in a temperate continental forest site in northeastern China. The assessment was tested by field-measured data from 1167 forest plots in 2017. The results showed that the RFK model achieved the accuracy with mean error, mean absolute error, root mean square error and correlation coefficient in -0.11, 19.37, 28.15 Mg ha(-1) and 0.98, respectively. The study revealed that backscatters and texture features from ALOS-2 L band SAR and vegetation indices from Sentinel-2 MSI were primary contributors for explaining the observed variability of AGB. Topographic indices from SRTM DEM were more important than C band SAR backscatters and texture. features. The accuracy improvement on forest AGB mapping by RFK over RF was more distinguished in models using a single sensor than those using multisensors. |
英文关键词 | ALOS-2 L band SAR Sentinel-2 MSI Sentinel-1C band SAR SRTM DEM Random forest kriging Forest aboveground biomass |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000474329400002 |
WOS关键词 | SOIL ORGANIC-MATTER ; GROWING STOCK VOLUME ; SPATIAL-DISTRIBUTION ; SENTINEL-2 DATA ; BOREAL FOREST ; CARBON STOCKS ; LIDAR ; UNCERTAINTY ; PLANTATION ; PREDICTION |
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/186641 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Key Lab Wetland Ecol & Environm, Northeast Inst Geog & Agroecol, Changchun 130102, Jilin, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Univ Rhode Isl, Dept Nat Resources Sci, 1 Greenhouse Rd, Kingston, RI 02881 USA |
推荐引用方式 GB/T 7714 | Chen, Lin,Wang, Yeqiao,Ren, Chunying,et al. Assessment of multi-wavelength SAR and multispectral instrument data for forest aboveground biomass mapping using random forest kriging[J]. FOREST ECOLOGY AND MANAGEMENT,2019,447:12-25. |
APA | Chen, Lin,Wang, Yeqiao,Ren, Chunying,Zhang, Bai,&Wang, Zongming.(2019).Assessment of multi-wavelength SAR and multispectral instrument data for forest aboveground biomass mapping using random forest kriging.FOREST ECOLOGY AND MANAGEMENT,447,12-25. |
MLA | Chen, Lin,et al."Assessment of multi-wavelength SAR and multispectral instrument data for forest aboveground biomass mapping using random forest kriging".FOREST ECOLOGY AND MANAGEMENT 447(2019):12-25. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论