Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/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
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ISSN | 1424-8220 |
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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