Leaf water potential measurements with a Scholander-type pressure chamber at a mature tropical dry forest in northwestern Mexico.

This data set includes leaf water potential measurements from 8 tree species from a mature and well-preserved tropical dry forest in Alamos Sonora, Mexico. The field campaign was carried on September 15th, 2023 at Racho el Guayabo within the reserve “Monte Mojino”, managed by Nature Culture International which lies within the federal protected area: “Area de Proteccion de Flora y Fauna Sierra de Alamos-Rio Chuchujaqui”, in the state of Sonora, Mexico. 

Data was collected at 5:00 am (pre-dawn), 8:00 am, 10:00 am and 12:00 pm (midday) in sun-exposed twigs of four different individual trees of six different genus.

Tree species measured:

Croton

flavescens

Bursera

grandiflora

Haematoxylum

brasiletto

Lysiloma

watsonii

Bursera

laxiflora

Brongniartia

alamosana

Lysiloma

divaricatum

Vachellia

campeachiana

*Plase note that when data was collected we believed we were sampling Acacia cochliacantha and now we understand that Vachellia is the revised genus revised for Acacia.

Ancillary data on shallow soil moisture (30cm) and meteorology are also provided.

Soil water content - shallow 30 cm

cm3/cm3 (volumetric)

Precipitation

mm

Relative humidity

%

Vapor pressure deficit

kPa

Air temperature

oC

Photosynthetically active radiation (PPFD)

µmolPhoton m-2 s-1

Incident shortwave radiation

W m-2

Net radiation

W m-2

Windspeed

m/s