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CBNPMP-Thèmes > Ecologie et géographie botanique > Télédétection, photointerprétation > Télédétection
Télédétection |
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UAVs as remote sensing platforms in plant ecology: review of applications and challenges / Zhongyu Sun in Journal of plant ecology, 14 (6) (12/2021)
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Titre : UAVs as remote sensing platforms in plant ecology: review of applications and challenges Type de document : Imprimé Auteurs : Zhongyu Sun ; Xiaonian Wang ; Zhihui Wang ; Long Yang ; Yichun Xie ; Yuhui Huang Année de publication : 2021 Article en page(s) : 1003-1023 Catégories : [CBNPMP-Thèmes] Télédétection Résumé : 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. Lien pérenne : DOI : 10.1093/jpe/rtab089 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=151573
in Journal of plant ecology > 14 (6) (12/2021) . - 1003-1023Sun, Z., Wang, X., Wang, Z., Yang, L., Xie, Y., Huang, Y. 2021. UAVs as remote sensing platforms in plant ecology: review of applications and challenges. Journal of plant ecology, 14(6): 1003-1023.Documents numériques
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Article (2021)Adobe Acrobat PDF
Titre : Unmanned Aerial Systems in conservation biology Type de document : Électronique Auteurs : Margarita Cristina Mulero Pazmany (1980-) Editeur : Sevilla : Estación Biológica de Doñana Année de publication : 2015 Autre Editeur : Sevilla : Universidad de Sevilla Importance : 137 p. Catégories : [CBNPMP-Thèmes] Télédétection
[CBNPMP-Thèmes] Conservation des écosystèmes
[CBNPMP-Thèmes] Conservation et gestion des espècesRésumé : Unmanned Aerial Systems (UAS) have been used for decades in the military field, mainly in dangerous or tedious missions where it is preferable to send a vehicle equipped with sensors than to use human piloted conventional aircrafts for information gathering. In recent years technology has advanced, the market has grown exponentially, prices have descended and the use of the systems is simpler, which has led to the incorporation of the UAS to the civilian world. UAS have proven useful in ecology related tasks, such as animals monitoring and habitats characterization, and their potential for spatial ecology has been pointed out, but to date there are just a few studies addressing their specific use in conservation biology. This Ph.D. thesis attempts to fill the gap of knowledge in practical functions of small UAS in conservation biology. It describes for the first time the use of these systems in an immediately applicable way for impact assessment of infrastructures and protection of endangered species. It also presents UAS as a tool for obtaining highresolution spatiotemporal information, which helps to understand habitat use in rapidly changing landscapes. Furthermore, it demonstrates that these systems can provide information as valid as the obtained by conventional techniques on the spatial distribution of species in protected areas. The experiments performed in the frame of this thesis show that low cost small UAS equipped with embarked cameras that provide high-resolution images offer the possibility of monitoring the environment at the researcher’s desired frequency and revisiting sites to perform systematic studies, which is valuable for ecological research. The results also revealed that UAS use in conservation biology has some constraints, mainly related with the scope of the missions, the limiting costs of the systems, operating restrictions associated to weather, legal limitations and the need of specialized personnel for operating the systems, as well as some difficulties for data analysis related with image processing. Overall, given the novelty of the subject and the importance it is expected to have in the near future, I consider that providing information on the capabilities and limitations of UAS, based on practical experiments in conservation biology, is not only of scientific interest but combines environmental and industry interests, which brings added value and usefulness of this thesis to society. Lien pérenne : Handle : 10261/109972 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152105 Mulero Pazmany, M.C. 2015. Unmanned Aerial Systems in conservation biology. Estación Biológica de Doñana, Sevilla. 137 pp.Documents numériques
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Thèse (2015)URL Unmanned Aircraft Systems in remote sensing and scientific research: classification and considerations of use / Adam C. Watts in Remote sensing, 4 (2012)
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Titre : Unmanned Aircraft Systems in remote sensing and scientific research: classification and considerations of use Type de document : Imprimé Auteurs : Adam C. Watts ; Vincent G. Ambrosia ; Everett A. Hinkley Année de publication : 2012 Article en page(s) : 1671-1692 Catégories : [CBNPMP-Thèmes] Télédétection Résumé : Unmanned Aircraft Systems (UAS) have evolved rapidly over the past decade driven primarily by military uses, and have begun finding application among civilian users for earth sensing reconnaissance and scientific data collection purposes. Among UAS, promising characteristics are long flight duration, improved mission safety, flight repeatability due to improving autopilots, and reduced operational costs when compared to manned aircraft. The potential advantages of an unmanned platform, however, depend on many factors, such as aircraft, sensor types, mission objectives, and the current UAS regulatory requirements for operations of the particular platform. The regulations concerning UAS operation are still in the early development stages and currently present significant barriers to entry for scientific users. In this article we describe a variety of platforms, as well as sensor capabilities, and identify advantages of each as relevant to the demands of users in the scientific research sector. We also briefly discuss the current state of regulations affecting UAS operations, with the purpose of informing the scientific community about this developing technology whose potential for revolutionizing natural science observations is similar to those transformations that GIS and GPS brought to the community two decades ago. Lien pérenne : DOI : 10.3390/rs4061671 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=151553
in Remote sensing > 4 (2012) . - 1671-1692Watts, AC., Ambrosia, VG., Hinkley, EA. 2012. Unmanned Aircraft Systems in remote sensing and scientific research: classification and considerations of use. Remote sensing, 4: 1671-1692.Documents numériques
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Article (2012)URL Vegetation index based in Unmanned Aerial Vehicle (UAV) to improve the management of invasive plants in protected areas, southern Brazil / C. L. Mallmann in International archives of the photogrammetry, remote sensing and spatial information sciences, XLII-3/W12-2020 (2020)
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Titre : Vegetation index based in Unmanned Aerial Vehicle (UAV) to improve the management of invasive plants in protected areas, southern Brazil Type de document : Imprimé Auteurs : C. L. Mallmann ; A. F. Zaninni ; W. Pereira Filho Année de publication : 2020 Article en page(s) : 521-524 Catégories : [CBNPMP-Thèmes] Télédétection Résumé : The biological invasion is considered the second largest global threat to the maintenance and conservation of natural ecosystems biodiversity. Strategies and actions that guide the control and monitoring of invasive species in protected areas are still a challenge on the management of these areas. Remote sensing is potential tool to detect and monitoring these species, gaining a timeline scale and allowing the adoption of more effective control methods. In this study, search to evaluate the vegetation index potential by using multispectral images acquired by UAV as a support on detection and monitoring of invasive plants in Quarta Colônia State Park located on the Brazil’s southern region. A sampling area with a density of invasive plants above 80% was evaluated, with predominance of Psidium guajava and Ligustrum lucidum, generating a large data set from the extracted indexes. Among the evaluated index, the ones that showed the most potential in this study were Green Normalized Difference Vegetation Index (GNDVI), Plant Senescence Reflectance Index (PSRI) and Red Green Ratio Index (RGRI). Believe us that the use of UAVs platforms will be an important tool for the management of invasive species in protected areas. Lien pérenne : DOI : 10.5194/isprs-archives-XLII-3-W12-2020-521-2020 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=151545
in International archives of the photogrammetry, remote sensing and spatial information sciences > XLII-3/W12-2020 (2020) . - 521-524Mallmann, CL., Zaninni, AF., Pereira Filho, W. 2020. Vegetation index based in Unmanned Aerial Vehicle (UAV) to improve the management of invasive plants in protected areas, southern Brazil. International archives of the photogrammetry, remote sensing and spatial information sciences, XLII-3/W12-2020: 521-524.Documents numériques
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Article (2020)URL