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UAVs as remote sensing platforms in plant ecology: review of applications and challenges
Journal of Plant Ecology ( IF 2.7 ) Pub Date : 2021-08-20 , DOI: 10.1093/jpe/rtab089
Zhongyu Sun 1 , Xiaonian Wang 2 , Zhihui Wang 1 , Long Yang 1 , Yichun Xie 3 , Yuhui Huang 4
Affiliation  

Abstract
Aims
Unmanned aerial vehicles (UAVs), i.e. drones, have recently emerged as cost-effective and flexible tools for acquiring remote sensing data with fine spatial and temporal resolution. It provides a new method and opportunity for plant ecologists to study issues from individual to regional scales. However, as a new method, UAVs remote sensing applications in plant ecology are still challenged. The needs of plant ecology research and the application development of UAVs remote sensing should be better integrated.
Methods
This report provides a comprehensive review of UAV-based remote sensing applications in plant ecology to synthesize prospects of applying drones to advance plant ecology research.
Important Findings
Of the 400 references, 59% were published in remote sensing journals rather than in plant ecology journals, reflecting a substantial gap between the interests of remote sensing experts and plant ecologists. Most of the studies focused on UAV remote sensing’s technical aspects, such as data processing and remote sensing inversion, with little attention on answering ecological questions. There were 61% of studies involved community-scale research. RGB and multispectral cameras were the most used sensors (75%). More ecologically meaningful parameters can be extracted from UAV data to better understand the canopy surface irregularity and community heterogeneity, identify geometrical characteristics of canopy gaps and construct canopy chemical assemblies from living vegetation volumes. More cooperation between plant ecologists and remote sensing experts is needed to promote UAV remote sensing in advancing plant ecology research.


中文翻译:

无人机作为植物生态学中的遥感平台:应用和挑战回顾

摘要
目标
无人驾驶飞行器 (UAV),即无人机,最近已成为具有成本效益和灵活的工具,用于获取具有精细空间和时间分辨率的遥感数据。它为植物生态学家从个体到区域尺度研究问题提供了新的方法和机会。然而,作为一种新方法,无人机在植物生态学中的遥感应用仍面临挑战。植物生态学研究的需要和无人机遥感应用发展的需要应该更好地结合起来。
方法
本报告全面回顾了基于无人机的遥感在植物生态学中的应用,以综合应用无人机推进植物生态学研究的前景。
重要发现
在 400 篇参考文献中,59% 发表在遥感期刊而不是植物生态学期刊上,反映出遥感专家和植物生态学家的利益之间存在巨大差距。大部分研究集中在无人机遥感的数据处理和遥感反演等技术方面,很少关注生态问题的回答。有 61% 的研究涉及社区规模的研究。RGB 和多光谱相机是最常用的传感器(75%)。可以从无人机数据中提取更多具有生态意义的参数,以更好地了解冠层表面不规则性和群落异质性,识别冠层间隙的几何特征,并从活植被体积构建冠层化学组件。
更新日期:2021-08-20
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