Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 426758
Title Simulation of water use and herbage growth in arid regions : a re-evaluation and further development of the model ‘arid crop’
Author(s) Keulen, H. van; Seligman, N.G.; Benjamin, R.W.
Source Agricultural Systems 6 (1981)3. - ISSN 0308-521X - p. 159 - 193.
DOI http://dx.doi.org/10.1016/0308-521X(81)90001-9
Department(s) Theoretical Production Ecology
Publication type Refereed Article in a scientific journal
Publication year 1981
Abstract A previously published simulation model, describing growth of annual pasture under semi-arid conditions, is re-examined and further developed on the basis of additional experimental information. Major changes introduced are connected with the partitioning of above-ground dry matter into leaves and non-leaf material and with the influence of drought on the photosynthetic performance of the vegetation. It is concluded that the present description yields satisfactory results for varying environmental conditions. Further study is required, however, especially with respect to the influence of prolonged water shortage on phenology, the ability to survive and the regrowth potential. A sensitivity analysis showed that the model is not very sensitive to variations in weather parameters, except for rain and, to a lesser extent, air temperature. It may, therefore, be applied with reasonable confidence, even when other weather data are available from nearby locations only.
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