ISHS Acta Horticulturae 276: II International Symposium on Computer Modelling in Fruit Research and Orchard Management
MODELLED PREDICTIONS OF TRANSPIRATION AND CARBON BALANCE FOR SIMULATED STANDS OF CONIFER, OLIVE, AND PEACH IN JORDAN |
| Authors: | S.S. Higgins, F.E. Larsen, S.W. Running |
| Abstract:
With continued agricultural development in Jordan, the need exists for a method to predict which tree fruits and other crops may perform best with limited moisture under rainfed conditions at various sites. FOREST-BGC, a model which predicts, for conifers, stand carbon and hydrologic balances is being used to predict several aspects of crop performance. This paper reports initial efforts in the adaptation of the model for use with olive and peach. Several model parameters were adjusted to reflect differences among conifers, olives, and peaches. Generally, the model predicted that in Amman, Jordan, conifer, olives, and peaches transpired about the same amount of water, but cumulative net carbon uptake was greatest in conifers, intermediate in olives, and least in peaches. Modelled transpiration estimates for olive agree well with published transpiration measurements for olives in Egypt. Modelled estimates of peach production bracket peach production for Amman. Although much work remains to be done on model adaptation, the model appears to be working reasonably well. | |
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