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Hella Ellen Ahrends
Hella Ellen Ahrends
University of Bonn, Institute of Crop Science and Resource Conservation
在 uni-bonn.de 的电子邮件经过验证
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Tree phenology and carbon dioxide fluxes: use of digital photography for process-based interpretation at the ecosystem scale
HE Ahrends, S Etzold, WL Kutsch, R Stöckli, R Brügger, F Jeanneret, ...
Climate Research 39 (3), 261-274, 2009
1912009
Quantitative phenological observations of a mixed beech forest in northern Switzerland with digital photography
HE Ahrends, R Brügger, R Stöckli, J Schenk, P Michna, F Jeanneret, ...
Journal of Geophysical Research: Biogeosciences 113 (G4), 2008
1702008
Interpreting canopy development and physiology using a European phenology camera network at flux sites
L Wingate, J Ogée, E Cremonese, G Filippa, T Mizunuma, M Migliavacca, ...
Biogeosciences 12 (20), 5995-6015, 2015
1532015
Airborne based spectroscopy of red and far-red sun-induced chlorophyll fluorescence: Implications for improved estimates of gross primary productivity
S Wieneke, H Ahrends, A Damm, F Pinto, A Stadler, M Rossini, U Rascher
Remote sensing of environment 184, 654-667, 2016
1092016
Methods of yield stability analysis in long-term field experiments. A review
M Reckling, H Ahrends, TW Chen, W Eugster, S Hadasch, S Knapp, ...
Agronomy for Sustainable Development 41, 1-28, 2021
762021
Modeling approaches to assess soil erosion by water at the field scale with special emphasis on heterogeneity of soils and crops
A Raza, H Ahrends, M Habib-Ur-Rahman, T Gaiser
Land 10 (4), 422, 2021
462021
Integrating wheat canopy temperatures in crop system models
D Neukam, H Ahrends, A Luig, R Manderscheid, H Kage
Agronomy 6 (1), 7, 2016
402016
Genetic yield gains of winter wheat in Germany over more than 100 years (1895–2007) under contrasting fertilizer applications
HE Ahrends, W Eugster, T Gaiser, V Rueda-Ayala, H Hüging, F Ewert, ...
Environmental Research Letters 13 (10), 104003, 2018
382018
Impact of in-field soil heterogeneity on biomass and yield of winter triticale in an intensively cropped hummocky landscape under temperate climate conditions
M Habib-ur-Rahman, A Raza, HE Ahrends, H Hüging, T Gaiser
Precision agriculture 23 (3), 912-938, 2022
312022
Short-term impacts of the air temperature on greening and senescence in Alaskan Arctic plant tundra habitats
JL May, NC Healey, HE Ahrends, RD Hollister, CE Tweedie, JM Welker, ...
Remote Sensing 9 (12), 1338, 2017
292017
Investigating the potential of a newly developed uav-mounted vnir/swir imaging system for monitoring crop traits—a case study for winter wheat
A Jenal, H Hüging, HE Ahrends, A Bolten, J Bongartz, G Bareth
Remote Sensing 13 (9), 1697, 2021
272021
Nutrient supply affects the yield stability of major European crops—A 50 year study
HE Ahrends, S Siebert, EE Rezaei, SJ Seidel, H Hüging, F Ewert, ...
Environmental Research Letters 16 (1), 014003, 2020
252020
A Mobile Instrumented Sensor Platform for Long-Term Terrestrial Ecosystem Analysis: An Example Application in an Arctic Tundra Ecosystem.
NC Healey, SF Oberbauer, HE Ahrends, D Dierick, JM Welker, AJ Leffler, ...
Journal of Environmental Informatics 24 (1), 2014
232014
Responses of winter wheat and maize to varying soil moisture: From leaf to canopy
TH Nguyen, M Langensiepen, T Gaiser, H Webber, H Ahrends, ...
Agricultural and Forest Meteorology 314, 108803, 2022
202022
Anaerobic Digestate from Biogas Plants—Nuisance Waste or Valuable Product?
M Szymańska, HE Ahrends, AK Srivastava, T Sosulski
Applied Sciences 12 (8), 4052, 2022
152022
Impact of nutrient supply on the expression of genetic improvements of cereals and row crops–A case study using data from a long-term fertilization experiment in Germany
V Rueda-Ayala, HE Ahrends, S Siebert, T Gaiser, H Hüging, F Ewert
European Journal of Agronomy 96, 34-46, 2018
152018
Crop response to P fertilizer omission under a changing climate-Experimental and modeling results over 115 years of a long-term fertilizer experiment
SJ Seidel, T Gaiser, HE Ahrends, H Hüging, S Siebert, SL Bauke, ...
Field Crops Research 268, 108174, 2021
132021
Using the Taguchi experimental design for assessing within-field variability of surface run-off and soil erosion risk
A Raza, H Ahrends, M Habib-ur-Rahman, H Hüging, T Gaiser
Science of the Total Environment 828, 154567, 2022
102022
Impact of climate extreme events and their causality on maize yield in South Africa
C Simanjuntak, T Gaiser, HE Ahrends, A Ceglar, M Singh, F Ewert, ...
Scientific Reports 13 (1), 12462, 2023
92023
Current approaches for modeling ecosystem services and biodiversity in agroforestry systems: Challenges and ways forward
MH Rahman, HE Ahrends, A Raza, T Gaiser
Frontiers in Forests and Global Change 5, 1032442, 2023
82023
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