@article{fdi:010096381,
  title = {{P}roxydetection of the impact distance of trees on crops : an indicator of the {L}and {E}quivalent {R}atio ?},
  author = {{A}gbohessou, {Y}. and {A}udebert, {A}. and {N}dour, {A}. and {L}eroux, {L}. and {J}ourdan, {C}. and {C}lermont {D}auphin, {C}athy and {S}ow, {S}. and {P}ierre, {C}. and {T}augourdeau, {S}. and {S}arr, {M}. {S}. and {D}iatta, {S}. and {S}anogo, {D}. and {S}eghieri, {J}osiane and {L}e {M}aire, {G}. and {V}ezy, {R}. and {F}onceka, {D}. and {R}oupsard, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}aidherbia albida is known to affect the yield of various crops, typically in a pattern where the impact decreases with increasing distance from the tree. {W}hile several studies have investigated the spatial extent of this effect, limited research has explored how this distance varies across different crops or its relationship with crop yield and the {L}and {E}quivalent {R}atio. {I}n this study, we used a geostatistical approach combined with multispectral {UAV} ({U}nmanned {A}erial {V}ehicle) imagery to address these gaps in understanding. {T}he results showed that, in contrast to its tripling effect on millet yield, {F}. albida does not have a significant impact on groundnut pod yield, it only improves its haulm yield under its crown by about 50 %. {T}he geostatistical analysis showed that {F}. albida affects the groundnut crop up to 9.8-m, compared to 18-m for millet. {Y}ield upscaling from subplots to the whole plot was achieved with an error of 8 % for groundnut pod yield and 13 % for haulm yield. {G}roundnut's partial {L}and {E}quivalent {R}atio ({LER}cp) was 1.02 for pod yield and 1.05 for haulm yield, which was lower than the {LER}cp for millet. {W}e concluded that the distance at which agroforestry trees influence crops is a reliable predictor of their effect on yield and {L}and {E}quivalent {R}atio. {T}his approach offers a promising tool for future agroforestry studies, potentially guiding crop management strategies in agroforestry systems.},
  keywords = {{F}aidherbia albida ; {D}istance of influence ; {C}rops ; {L}and {E}quivalent {R}atio ; {S}pectral indices ; {G}eostatistics ; {SENEGAL} ; {NIAKHAR} {REGION}},
  booktitle = {},
  journal = {{A}griculture {E}cosystems & {E}nvironment},
  volume = {394},
  numero = {},
  pages = {109918 [16 p.]},
  ISSN = {0167-8809},
  year = {2025},
  DOI = {10.1016/j.agee.2025.109918},
  URL = {https://www.documentation.ird.fr/hor/fdi:010096381},
}