@article{fdi:010070226, title = {{D}ifferences in transpiration between a forest and an agroforestry tree species in the {S}udanian belt}, author = {{A}wessou, {K}. {G}. {B}. and {P}eugeot, {C}hristophe and {R}ocheteau, {A}lain and {S}{\'e}guis, {L}uc and {D}o, {F}r{\'e}d{\'e}ric and {G}alle, {S}ylvie and {B}ellanger, {M}. and {A}gbossou, {E}. and {S}eghieri, {J}osiane}, editor = {}, language = {{ENG}}, abstract = {{A}verage population growth in the {A}frican {S}udanian belt is 3 % per year. {T}his leads to a significant increase in cultivated areas at the expense of fallows and forests. {F}or centuries, rural populations have been practicing agroforestry dominated by {V}itellaria paradoxa parklands. {W}e wanted to know whether agroforestry can improve local rainfall recycling as well as forest. {W}e compared transpiration and its seasonal variations between {V}itellaria paradoxa, the dominant species in fallows, and {I}soberlinia doka, the dominant species in dry forests in the {S}udanian belt. {T}he fallow and dry forest we studied are located in northwestern {B}enin, where average annual rainfall is 1200 mm. {S}ap flow density ({SFD}) was measured by transient thermal dissipation, from which tree transpiration was deduced. {T}ranspiration of five trees per species was estimated by taking into account the radial profile of {SFD}. {T}he effect of the species and of the season on transpiration was tested with a generalized linear mixed model. {O}ver the three-year study period, daily transpiration of the agroforestry trees, {V}. paradoxa (diameters 8-38 cm) ranged between 4.4 and 26.8 {L} day(-1) while that of the forest trees, {I}. doka, (diameters 20-38 cm) ranged from 9.8 to 92.6 {L} day(-1). {D}aily transpiration of {V}. paradoxa was significantly lower (15 %) in the dry season than in the rainy season, whereas daily transpiration by {I}. doka was significantly higher (13 %) in the dry season than in the rainy season. {O}ur results indicate that the woody cover of agroforestry systems is less efficient in recycling local rainfall than forest cover, not only due to lower tree density but also to species composition.}, keywords = {{B}enin ; {I}soberlinia doka ; {L}and use changes ; {T}ransient thermal dissipation method ; {V}itellaria paradoxa ; {W}ater use ; {BENIN} ; {ZONE} {SOUDANNIENNE}}, booktitle = {}, journal = {{A}groforestry {S}ystems}, volume = {91}, numero = {3}, pages = {403--413}, ISSN = {0167-4366}, year = {2017}, DOI = {10.1007/s10457-016-9937-8}, URL = {https://www.documentation.ird.fr/hor/fdi:010070226}, }