@article{fdi:010069971,
  title = {{C}ontrasted effects of annual and perennial grasses on soil chemical and biological characteristics of a grazed {S}udanian savanna},
  author = {{Y}e, {L}. and {L}ata, {J}. {C}. and {M}asse, {D}ominique and {N}acro, {H}. {B}. and {K}issou, {R}. and {D}iallo, {N}. {H}. and {B}arot, {S}{\'e}bastien},
  editor = {},
  language = {{ENG}},
  abstract = {{G}rowth and composition of plant communities depends on physico-chemical and biological characteristics of soils. {C}onversely, plants influence nutrient cycling and soil characteristics. {T}hus, they affect the long-term availability of nutrients, which feedbacks on their own growth and the primary productivity of ecosystems. {T}his study focuses on the fertility and functioning of soils of a grazed savanna in {B}urkina {F}aso. {I}t describes the effects of annual and perennial grasses involved in fallow succession, on chemical and biological (microbial biomass, mineralization and enzymatic activities) characteristics of soils. {T}o do this, soil samples were collected under the four dominant species of grasses ({A}. ascinodis, {A}. gayanus, {A}. pseudapricus and {L}. togoensis) and under bare areas within 48 plots, as well as above- and belowground grass biomass. {R}esults show that root biomass, p{H}({KC}l), basal respiration and fluorescein diacetate activities were significantly higher under perennial grasses ({A}. gayanus and {A}. ascinodis) than annual ({A}. pseudapricus and {L}. togoensis) and bare soil. {N}itrate levels were higher under {A}. gayanus that had the lowest root biomass. {T}otal carbon, total nitrogen, microbial biomass and acid phosphatase were higher under the perennial grass {A}. ascinodis. p{H}(water) was lower under {A}. pseudapricus. {F}inally, ammonium and beta-glucosidase activities weren't significantly different between species. {O}verall, these results appear complex certainly due to factors of variability that remain to be identified. {N}evertheless, they support the general hypothesis that perennial grasses have a greater influence on soil than annuals. {S}oil biological parameters ({B}asal respiration, microbial biomass, {B}eta-glucosidase, fluorescein-diacetate and acid phosphorus) exhibited strong relationship with soil p{H}, total {C} and {N}.},
  keywords = {{A}nnual and perennial tropical grasses ; {S}avanna ; {S}oil chemical and ; biological characteristics ; {B}urkina {F}aso ; {BURKINA} {FASO} ; {ZONE} {SOUDANIENNE}},
  booktitle = {},
  journal = {{A}pplied {S}oil {E}cology},
  volume = {113},
  numero = {},
  pages = {155--165},
  ISSN = {0929-1393},
  year = {2017},
  DOI = {10.1016/j.apsoil.2017.02.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010069971},
}