Aboveground biomass estimation in tropical forests at single tree level with ALS data

Aboveground biomass estimation in tropical forests at single tree level with ALS data
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利用 ALS 数据估算热带森林单树水平的地上生物量

DOI:
10.1109/igarss.2016.7730390
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发表时间:
2016
期刊:
--
影响因子:
--
通讯作者:
Dalponte M
Dalponte M
中科院分区:
--
文献类型:
--
作者:
Dalponte M

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本文利用航空激光扫描(ALS)数据对热带森林单木地上生物量进行了估算。首先,使用基于自适应窗口的方法检测单个树冠(ITC),该窗口根据树高改变其大小。然后,使用标准异速生长模型预测每个ITC的胸径(DBH)和地上生物量(AGB)。最后,在样地水平上汇总AGB值,并与现场测量值进行比较。结果表明,利用ALS数据可以较准确地预测热带森林单木水平的地上生物量。
In this paper we present a study on the estimation of the aboveground biomass in tropical forests at single tree level using airborne laser scanning (ALS) data. Individual tree crowns (ITCs) are firstly detected using a method based on an adaptive window that change its size according to tree height. The diameter at breast height (DBH) and the aboveground biomass (AGB) of each ITC then are predicted using standard allometric models. Lastly, the AGB values are aggregated at plot level, and compared with field measured values. The results show that it is possible to accurately predict the aboveground biomass of tropical forests at single tree level using ALS data.
DOI: 10.1016/s0034-4257(01)00290-5
发表时间: 2002-04-01
影响因子: 13.5
作者:
Næsset, E
通讯作者: Næsset, E