@article{PAR00000135,
  title = {{S}ubirrigation of land bordering small reservoirs in the semi-arid region in the {N}ortheast of {B}razil : monitoring and water balance},
  author = {{A}ntonino, {A}.{C}.{D}. and {H}ammecker, {C}laude and {M}ontenegro, {S}. and {N}etto, {A}.{M}. and {A}ngulo {J}aramillo, {R}. and {L}ira, {C}abo},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n {N}ortheast {B}razil, more than 70,000 small dams retain superficial runoff and underground water flow, creating small reservoirs. {R}ecession agriculture consists of cropping the margins of the reservoirs, on slight slopes, while the water level progressively decreases, and it is a widespread cropping system in this area. {T}he water balance for this particular system was quantified on two contiguous plots, one with "{M}arreca" grass ({P}aspalum conjugatum {B}erg.), a forage crop, and the other one on bare soil, in the recession zone of the basin of {F}locos dam, municipality of {T}uparetama, {PE} (7 degrees 36'{S} and 37 degrees 18'{W}). {T}he soil, classified as {F}luvent, consists of a superficial clay textured layer overlying a sandy layer. {N}ext to the dam, a meteorological station was installed, equipped with automatic sensors for recording rainfall, air temperature and wind speed, and pan evaporation. {I}n the reservoir, the water level was recorded. {T}he plots were instrumented with one neutron probe access tube, one piezometer and tensiorneters at different soil depths. {W}ater retention and hydraulic conductivity characteristics were determined through field and laboratory measurements. {T}he water balance was determined for the cropped and the bare soil plots, during 67 days. {A}verage values for the actual evaporation and evapotranspiration rate, were respectively 5.0 and 8.0 mill day(-1), with an average reference evaporation rate of 8.7 min day(-1). {T}he contribution of the aquifer recharge to evaporative demand was estimated and found to be very important. {F}ield observation and the estimated aquifer recharge from the reservoir {S}uggest the presence of preferential flow. {T}he study of water dynamics in this system is fundamental for establishing a basis for the sustainable development of agriculture in this area. (c) 2004 {E}lsevier {B}.{V}. {A}ll rights reserved.},
  keywords = {recession agriculture ; semi arid ; water balance ; evapotranspiration},
  booktitle = {},
  journal = {{A}gricultural {W}ater {M}anagement},
  volume = {73},
  numero = {2},
  pages = {131--147},
  ISSN = {0378-3774},
  year = {2005},
  DOI = {10.1016/j.agwat.2004.10.001},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00000135},
}