Dr. Sophie Graefe

 
Staff Status
unigoe
 

1-10 of 10
 
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  • 2020 Journal Article
    ​ ​Variations in yield gaps of smallholder cocoa systems and the main determining factors along a climate gradient in Ghana​
    Abdulai, I. ; Hoffmann, M. P. ; Jassogne, L.; Asare, R.; Graefe, S. ; Tao, H.-H. & Muilerman, S. et al.​ (2020) 
    Agricultural Systems181 pp. 102812​.​ DOI: https://doi.org/10.1016/j.agsy.2020.102812 
    Details  DOI 
  • 2020 Journal Article
    ​ ​Effect of cropping system, shade cover and altitudinal gradient on coffee yield components at Mt. Elgon, Uganda​
    Sarmiento-Soler, A.; Vaast, P.; Hoffmann, M. P. ; Jassogne, L.; van Asten, P.; Graefe, S.   & Rötter, R. P. ​ (2020) 
    Agriculture, Ecosystems & Environment295 pp. 106887​.​ DOI: https://doi.org/10.1016/j.agee.2020.106887 
    Details  DOI 
  • 2019 Journal Article
    ​ ​Trends and gaps in scholarly literature on urban and peri-urban agriculture​
    Graefe, S. ; Buerkert, A.   & Schlecht, E. ​ (2019) 
    Nutrient Cycling in Agroecosystems115(2) pp. 143​-158​.​ DOI: https://doi.org/10.1007/s10705-019-10018-z 
    Details  DOI 
  • 2019 Journal Article | Research Paper
    ​ ​Water use of Coffea arabica in open versus shaded systems under smallholder’s farm conditions in Eastern Uganda​
    Sarmiento-Soler, A.; Vaast, P.; Hoffmann, M. P. ; Rötter, R. P. ; Jassogne, L.; van Asten, P. J. & Graefe, S. ​ (2019) 
    Agricultural and Forest Meteorology266-267 pp. 231​-242​.​ DOI: https://doi.org/10.1016/j.agrformet.2018.12.006 
    Details  DOI 
  • 2019 Journal Article
    ​ ​Water residence times in trees of a neotropical dry forest​
    Graefe, S. ; Fang, D. & Butz, P.​ (2019) 
    Trees33(4) pp. 1225​-1231​.​ DOI: https://doi.org/10.1007/s00468-019-01849-y 
    Details  DOI 
  • 2018 Journal Article
    ​ ​Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun: Reply to Norgrove (2017)​
    Abdulai, I. ; Vaast, P.; Hoffmann, M. P. ; Asare, R.; Jassogne, L.; Van Asten, P. & Rötter, R. P.  et al.​ (2018) 
    Global Change Biology24(5) pp. e733​-e740​.​ DOI: https://doi.org/10.1111/gcb.14044 
    Details  DOI 
  • 2017 Journal Article
    ​ ​Tree responses to moisture fluctuations in a neotropical dry forest as potential climate change indicators​
    Butz, P.; Raffelsbauer, V.; Graefe, S. ; Peters, T.; Cueva, E.; Hölscher, D.   & Bräuning, A.​ (2017) 
    Ecological Indicators83 pp. 559​-571​.​ DOI: https://doi.org/10.1016/j.ecolind.2016.11.021 
    Details  DOI 
  • 2017 Journal Article
    ​ ​Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun​
    Abdulai, I. ; Vaast, P.; Hoffmann, M. P. ; Asare, R.; Jassogne, L.; Van Asten, P. & Rötter, R. P.  et al.​ (2017) 
    Global Change Biology24(1) pp. 273​-286​.​ DOI: https://doi.org/10.1111/gcb.13885 
    Details  DOI 
  • 2017 Journal Article
    ​ ​Evaluating Farmers' Knowledge of Shade Trees in Different Cocoa Agro-Ecological Zones in Ghana​
    Graefe, S. ; Meyer-Sand, L. F.; Chauvette, K.; Abdulai, I. ; Jassogne, L.; Vaast, P. & Asare, R.​ (2017) 
    Human Ecology45(3) pp. 321​-332​.​ DOI: https://doi.org/10.1007/s10745-017-9899-0 
    Details  DOI  WoS 
  • 2008 Journal Article
    ​ ​Estimating Fine Root Turnover in Tropical Forests along an Elevational Transect using Minirhizotrons​
    Graefe, S. ; Hertel, D.   & Leuschner, C. ​ (2008) 
    Biotropica40(5) pp. 536​-542​.​ DOI: https://doi.org/10.1111/j.1744-7429.2008.00419.x 
    Details  DOI 

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