Arid
DOI10.3390/s16111948
Extracting Plant Phenology Metrics in a Great Basin Watershed: Methods and Considerations for Quantifying Phenophases in a Cold Desert
Snyder, Keirith A.1; Wehan, Bryce L.1; Filippa, Gianluca2; Huntington, Justin L.3; Stringham, Tamzen K.4; Snyder, Devon K.4
通讯作者Snyder, Keirith A.
来源期刊SENSORS
ISSN1424-8220
出版年2016
卷号16期号:11
英文摘要

Plant phenology is recognized as important for ecological dynamics. There has been a recent advent of phenology and camera networks worldwide. The established PhenoCam Network has sites in the United States, including the western states. However, there is a paucity of published research from semi-arid regions. In this study, we demonstrate the utility of camera-based repeat digital imagery and use of R statistical phenopix package to quantify plant phenology and phenophases in four plant communities in the semi-arid cold desert region of the Great Basin. We developed an automated variable snow/night filter for removing ephemeral snow events, which allowed fitting of phenophases with a double logistic algorithm. We were able to detect low amplitude seasonal variation in pinyon and juniper canopies and sagebrush steppe, and characterize wet and mesic meadows in area-averaged analyses. We used individual pixel-based spatial analyses to separate sagebrush shrub canopy pixels from interspace by determining differences in phenophases of sagebrush relative to interspace. The ability to monitor plant phenology with camera-based images fills spatial and temporal gaps in remotely sensed data and field based surveys, allowing species level relationships between environmental variables and phenology to be developed on a fine time scale thus providing powerful new tools for land management.


英文关键词StarDot cameras PhenoCam network pinyon and juniper sagebrush steppe semi-arid meadows camera-based repeat digital photography
类型Article
语种英语
国家USA ; Italy
收录类别SCI-E
WOS记录号WOS:000389641700181
WOS关键词DIGITAL REPEAT PHOTOGRAPHY ; ECOLOGICAL APPLICATIONS ; CLIMATE-CHANGE ; FOREST ; CAMERAS ; PRECIPITATION ; LANDSCAPE ; DYNAMICS ; SYSTEM ; IMAGES
WOS类目Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS研究方向Chemistry ; Engineering ; Instruments & Instrumentation
来源机构Desert Research Institute
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/196408
作者单位1.USDA ARS, Great Basin Rangelands Res Unit, Reno, NV 89512 USA;
2.ARPA Valle dAosta, Environm Protect Agcy Aosta Valley, Climate Change Unit, I-11020 St Christophe, Italy;
3.Desert Res Inst, Western Reg Climate Ctr, Reno, NV 89512 USA;
4.Univ Nevada, Dept Agr Nutr & Vet Sci, Reno, NV 89557 USA
推荐引用方式
GB/T 7714
Snyder, Keirith A.,Wehan, Bryce L.,Filippa, Gianluca,et al. Extracting Plant Phenology Metrics in a Great Basin Watershed: Methods and Considerations for Quantifying Phenophases in a Cold Desert[J]. Desert Research Institute,2016,16(11).
APA Snyder, Keirith A.,Wehan, Bryce L.,Filippa, Gianluca,Huntington, Justin L.,Stringham, Tamzen K.,&Snyder, Devon K..(2016).Extracting Plant Phenology Metrics in a Great Basin Watershed: Methods and Considerations for Quantifying Phenophases in a Cold Desert.SENSORS,16(11).
MLA Snyder, Keirith A.,et al."Extracting Plant Phenology Metrics in a Great Basin Watershed: Methods and Considerations for Quantifying Phenophases in a Cold Desert".SENSORS 16.11(2016).
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