@article{fdi:010071308, title = {{S}itu{R}esp ({R}) : a time- and cost-effective method to assess basal soil respiration in the field}, author = {{T}houmazeau, {A}. and {G}ay, {F}. and {A}lonso, {P}ascal and {S}uvannang, {N}. and {P}hongjinda, {A}. and {P}anklang, {P}. and {C}hevallier,{T}iphaine and {B}essou, {C}. and {B}rauman, {A}lain}, editor = {}, language = {{ENG}}, abstract = {{T}he soil microbial activity is a key parameter in numerous studies aiming to assess soil quality in agricultural plots. {B}asal {S}oil {R}espiration ({BSR}) has been extensively used as an indicator of this soil microbial activity. {H}owever, available methods to measure {BSR} remain time-and labor-consuming and must be performed in the laboratory which may lead to result distortion due to the needed soil pre-treatments. {T}he {S}itu{R}esp ({R}) method was developed to assess {BSR} in a time-and cost-effective way. {T}his method was adapted from a laboratory methodology, the {M}icro{R}esp ({TM}) method, in order to be implemented in the field on fresh soil samples. {I}t is based on the color change of a p{H}-sensitive gel in reaction to the {CO}2 concentration change in the headspace of a soil sample over the 24-h incubation. {T}his study presents the calibration and validation of the {S}itu{R}esp ({R}) method in laboratory conditions, and a comparison in the field with the {S}olvita ({R}) tool, a comparable method used by agricultural scientists and advisors. {T}he results of the calibration showed a high correlation between the air {CO}2 concentration and the absorbance variation of the gel at 570 nm ({R}-2 = 0.95). {T}he validation against the titration alkali-trap method, on 21 soil samples, showed a strong correlation between the two methods ({R}-2 = 0.90). {I}n the field test on 9 agricultural-plots, the {S}itu{R}esp ({R}) method yielded similar results to the {S}olvita ({R}) tool. {T}he {S}itu{R}esp ({R}) method is therefore a reliable method for performing a cheap, rapid but efficient assessment of soil microbial activity in the field which could be included in soil quality monitoring.}, keywords = {{B}asal soil respiration ; {S}itu{R}esp ({R}) ; {S}olvita ({R}) ; {I}ndicator ; {S}oil ; microbial activity ; {S}oil quality}, booktitle = {}, journal = {{A}pplied {S}oil {E}cology}, volume = {121}, numero = {}, pages = {223--230}, ISSN = {0929-1393}, year = {2017}, DOI = {10.1016/j.apsoil.2017.10.006}, URL = {https://www.documentation.ird.fr/hor/fdi:010071308}, }