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040 _aCR-TuBCO
_cCR-TuBCO
_bEspañol
041 0 _aeng
100 1 _984353
_aKöhler, M.
100 1 _962639
_aDierick, D.
100 1 _9117358
_aSchwendenmann, L.
100 1 _978518
_aHölscher, D.
245 1 0 _aWater use characteristics of cacao and Gliricidia trees in an agroforest in Central Sulawesi, Indonesia
260 _aAlemania
_bJohn Wiley & Sons
_c2009
270 _aSan José, C.R.
300 _a10 páginas:
_b4 figuras, 4 tablas
504 _aIncluye 34 referencias bibliográficas en las páginas 528-529
520 _aWater use characteristics of cacao (Theobroma cacao) and Gliricidia sepium shade trees were studied in an agroforest on Sulawesi, Indonesia. The objectives were: (1) to identify environmental and tree structural factors controlling water use, (2) to analyse the effect of shade tree cover on cacao water use and (3) to estimate stand level transpiration. Sap flux density was measured in up to 18 trees per species and described with a Jarvis-type model. Model parameters suggested a 49% higher maximum sap flux density in cacao than in Gliricidia and species differences in the response to vapour pressure deficit and radiation. Tree water use was positively related to tree diameter in both species, but this relationship tended to differ between species. In cacao trees maximal tree water use increased with decreasing canopy gap fraction above the trees (R2adj = 0·39, p = 0·04). This was paralleled by an increase of cacao stem diameter and leaf area with decreasing gap fraction. Maximum water use rate per unit crown area of cacao was 13% higher than that of Gliricidia. At the stand level the average transpiration rate was estimated at 1·5 mm day−1 per unit ground area, 70% of which was contributed to by cacao. We conclude that, in the given stand, species differed substantially in water use characteristics, while estimated stand transpiration is in line with findings from other studies for cacao stands. Shade trees may enhance stand transpiration through own water use and additionally by increasing water use rates of cacao trees.
650 1 4 _9166664
_aTHEOBROMA CACAO
650 1 4 _9149387
_aGLIRICIDIA SEPIUM
650 1 4 _9158986
_aPLANTACION
650 1 4 _9134976
_aAGROFORESTERIA
650 1 4 _9159031
_aPLANTAS DE SOMBRA
650 1 0 _aAGUA
_9133818
650 1 4 _9167815
_aUSO DEL AGUA
650 1 4 _9151141
_aINDONESIA
650 1 4 _9167146
_aTRANSPIRACION
691 _9166664
_aTHEOBROMA CACAO
691 _9149387
_aGLIRICIDIA SEPIUM
691 _9332136
_aPLANTING
691 _9134979
_aAGROFORESTRY
691 _9338197
_aSHADE PLANTS
691 _9168628
_aWATER
691 _9168644
_aWATER USE
691 _9151141
_aINDONESIA
691 _9341428
_aTRANSPIRATION
773 0 _tEcohydrology (Alemania)
_gVolumen 2, número 4, páginas 520-529
_d2009
856 4 0 _uhttps://doi.org/10.1002/eco.67
_qpdf
_yeng
901 _aF08
902 _aP10
903 _aE
904 _aklines
904 _aacarvajal
905 _aC
906 _a20111018
_b20111021
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907 _a000003278
907 _a000005992
907 _a000000207
907 _a000007019
907 _a000008309
907 _a000016065
907 _a000003840
907 _a000007871
907 _dCA
908 _aJ
942 _cDIG
_2z