The Forest Observation System, building a global reference dataset for remote sensing of forest biomass
The Forest Observation System, building a global reference dataset for remote sensing of forest biomass
复制标题
DOI：
10.1038/s41597-019-0196-1
复制
发表时间：
2019-10-10
期刊：
影响因子：
9.8
通讯作者：
Zo-Bi, Irie Casimir
中科院分区：
文献类型：
--
作者：
Schepaschenko, Dmitry;Chave, Jerome;Zo-Bi, Irie Casimir
森林生物量是监测地球生态系统和气候的重要指标。它是温室气体核算、估计碳损失和森林退化、评估可再生能源潜力以及制定REDD+等气候变化缓解政策的关键投入。现在，利用卫星遥感(RS)可以对地上生物量(AGB)进行墙到墙的绘制。然而，遥感方法需要现有的、最新的、可靠的、具有代表性和可比性的现场数据来进行定标和验证。在这里，我们介绍森林观测系统(FOS)倡议，这是一项建立和维护全球就地森林生物量数据库的国际合作。AGB和树冠高度估计数及其相关的不确定度是根据世界各地森林的永久性研究地块进行的实地测量得出的0.25公顷的比例尺。所有的地块估计都是地理位置的，并且有一个大小，允许与许多遥感测量进行直接比较。FOS提供了提高遥感生物质产品精确度的潜力，同时在遥感和地面生态系统研究界之间发展新的协同作用。
Forest biomass is an essential indicator for monitoring the Earth's ecosystems and climate. It is a critical input to greenhouse gas accounting, estimation of carbon losses and forest degradation, assessment of renewable energy potential, and for developing climate change mitigation policies such as REDD+, among others. Wall-to-wall mapping of aboveground biomass (AGB) is now possible with satellite remote sensing (RS). However, RS methods require extant, up-to-date, reliable, representative and comparable in situ data for calibration and validation. Here, we present the Forest Observation System (FOS) initiative, an international cooperation to establish and maintain a global in situ forest biomass database. AGB and canopy height estimates with their associated uncertainties are derived at a 0.25 ha scale from field measurements made in permanent research plots across the world's forests. All plot estimates are geolocated and have a size that allows for direct comparison with many RS measurements. The FOS offers the potential to improve the accuracy of RS- based biomass products while developing new synergies between the RS and ground-based ecosystem research communities.