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.

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Record number 426247
Title Runoff agroforestry in arid lands
Author(s) Lövenstein, H.M.; Berliner, P.R.; Keulen, H. van
Source Forest Ecology and Management 45 (1991)1-4. - ISSN 0378-1127 - p. 59 - 70.
Department(s) Theoretical Production Ecology
Publication type Refereed Article in a scientific journal
Publication year 1991
Abstract Biomass production in arid zones may be increased without irrigation by using runoff farming techniques. The salient feature of this technique is that large amounts of water are collected a few times per year and percolate deep into the soil. The combined cultivation of shallow rooting annuals and deep rooting perennials (agroforestry) was proposed as a method by which fodder and firewood could be simultaneously produced and stored water used efficiently. As a first step to test the feasibility of this proposal, Acacia salicina and Eucalyptus occidentalis were grown at two densities (625 and 1250 trees ha−1) in runoff catchment basins in the Northern Negev Desert of Israel (average rainfall: 115 mm a−1). Biomass, soil moisture content and some plant physiological parameters were periodically recorded. Total above-ground dry matter after three years was 15 and 19 t ha−1 for A. salicina and 25 and 28 t ha−1 for E. occidentalis at low and high density, respectively. Soil water balance studies during the growing season indicate that for the conditions under which this trial was carried out, tree roots do not explore the upper soil layers efficiently and that relatively high leaf water potential can be maintained by taking up water from deeper layers. These results suggest that water from surface layers could be used by annual crops without affecting production of the perennial crop.
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