التفاصيل البيبلوغرافية
| العنوان: |
Measuring and scaling environmentally induced dynamics of solar-induced chlorophyll fluorescence (SIF) from the ground to the aircraft |
| المؤلفون: |
Quiros Vargas, Juan Jose |
| المساهمون: |
Rascher, Uwe, Kusche, Jurgen |
| بيانات النشر: |
Universitäts- und Landesbibliothek Bonn |
| سنة النشر: |
2023 |
| المجموعة: |
bonndoc - The Repository of the University of Bonn |
| مصطلحات موضوعية: |
ddc:630 |
| الوصف: |
Chlorophyll fluorescence is the absorbed photosynthetically active radiation (PAR) re-emitted as a faint red glow when the photosynthetic apparatus is not able to run photochemistry. This relation that Chlorophyll fluorescence has with photosynthesis makes it an indicator of plant physiological status. After half a century research the emission of solar-induced Chlorophyll fluorescence (SIF) from the canopy can be measured from ground up to satellite scales. Though the first models of ground sensors were created since the 90’s, operational platforms for the remote sensing of SIF were only possible in the last decade. The increasing accessibility of SIF information has aroused the interest of ecology, forestry and agriculture scientists to use it as a reference of plants functioning response to varying environmental factors. Such a challenge demands integrated knowledge from diverse disciplines like biology, plant physiology, agronomy, geography and data analytics and specific sub-disciplines depending on the spatiotemporal scale of the plant process being studied. The knowledge network on each specific area and scale is woven by the interconnection of every single study published on the matter. In this regard, the present thesis aims to contribute with new knowledge about the use of SIF data on ground, aerial and satellite scales where a study addressing the spatial relation of airborne-SIF with the plant available water in the root zone (PAW) is considered as the main contribution of this doctoral work. Further, applications of Chlorophyll fluorescence data for field phenotyping were addressed in a ground-level study, where lower photosynthetic efficiency at noon was found in bean genotypes cultivated in a free-air CO 2 enriched (FACE) experiment. In the same study, a significant relation between SIF and the Chlorophyll fluorescence measured from active sensors is reported. Moreover, the potential use of unmanned aerial vehicles (UAVs) for the retrieval of SIF was discussed in a ‘state-of-the-arte’ article. ... |
| نوع الوثيقة: |
doctoral or postdoctoral thesis |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/urn/urn:nbn:de:hbz:5-73304; https://hdl.handle.net/20.500.11811/11172 |
| الاتاحة: |
https://hdl.handle.net/20.500.11811/11172 |
| Rights: |
In Copyright ; http://rightsstatements.org/vocab/InC/1.0/ ; openAccess |
| رقم الانضمام: |
edsbas.AF6215C9 |
| قاعدة البيانات: |
BASE |