Thermal imaging in plant and ecosystem ecology: applications and challenges
Thermal imaging in plant and ecosystem ecology: applications and challenges
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DOI：
10.1002/ecs2.2768
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发表时间：
2019-06
期刊：
影响因子：
2.7
通讯作者：
C. Still;R. Powell;D. Aubrecht;Youngil Kim;B. Helliker;D. Roberts;A. Richardson;M. Goulden
中科院分区：
文献类型：
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作者：
C. Still;R. Powell;D. Aubrecht;Youngil Kim;B. Helliker;D. Roberts;A. Richardson;M. Goulden
温度是在一定的空间和时间尺度上对生态系统和过程的主要环境控制。生物体的表面温度往往比气温更能反映生态过程，后者是更常用的测量方法。地表温度影响并受到一系列生物、物理和化学过程的影响，为温度对生态系统功能的影响提供了独特的观点。此外，地表温度在一系列时间和空间尺度上变化很大，可能与气温相差40摄氏度或更多。由于传感器和计算的限制，表面温度测量一直是具有挑战性的，但现在使用热成像在高空间和时间分辨率下是可行的。因此，我们现在有可能在了解植物和生态系统的热状况及其功能后果方面取得重大进展。热测量可用于解决许多生态学问题，如对植物和生态系统新陈代谢的热控制以及热浪和干旱的影响。这一领域的进一步进展将需要从业者在生理学、生态系统生态学、遥感和地理空间分析等领域开展跨学科合作。在这篇综述中，我们从测量、分析和综合的角度论证了热成像用于测量一系列尺度上的植被表面温度的可行性、实用性和潜力。
Temperature is a primary environmental control on ecological systems and processes at a range of spatial and temporal scales. The surface temperature of organisms is often more relevant for ecological processes than air temperature, which is much more commonly measured. Surface temperature influences—and is influenced by—a range of biological, physical, and chemical processes, providing a unique view of temperature effects on ecosystem function. Furthermore, surface temperatures vary markedly over a range of temporal and spatial scales and may diverge from air temperature by 40°C or more. Surface temperature measurements have been challenging due to sensor and computational limitations but are now feasible at high spatial and temporal resolutions using thermal imaging. Thus, significant advances in our understanding of plant and ecosystem thermal regimes and their functional consequences are now possible. Thermal measurements may be used to address many ecological questions, such as the thermal controls on plant and ecosystem metabolism and the impact of heat waves and drought. Further advances in this area will require interdisciplinary collaborations among practitioners in fields ranging from physiology to ecosystem ecology to remote sensing and geospatial analysis. In this overview, we demonstrate the feasibility, utility, and potential of thermal imaging for measuring vegetation surface temperatures across a range of scales and from measurement, analysis, and synthesis perspectives.