TY - JOUR
T1 - Combating desertification in the Negev
T2 - Dryland agriculture vs. dryland urbanization
AU - Portnov, B. A.
AU - Safriel, U. N.
PY - 2004/3
Y1 - 2004/3
N2 - The Negev region occupies nearly two-third of Israel's land area (21,671 km2) but hosts less than 9% of its 6.5 million strong population. Until recently, the process of desertification did not affect the Negev profoundly. This was mainly due to large-scale afforestation programs, restrictions imposed on grazing, and large water subsidies from the less arid part of the country to its more arid part. However, there are some indications that the process of desertification in the Negev has already started and may accelerate in the future. In light of this trend, the efficient long-term strategy for the Negev's development is essential. The present study compares two alternative strategies of the Negev's future development: agricultural expansion vs. urbanization path. Two basic criteria - the minimization of adverse environmental impacts and economic feasibility - are used for the evaluation. The urbanization path is found to be preferable. Since agriculture and livestock grazing are the major contributors to desertification, replacing them with urban development may lessen the risk of desertification in the future. In contrast, urban development, if properly planned and regulated, may reduce the spatial extent of the area affected by agricultural development, and thus minimize the anthropogenic impact on the desert environment. Economic reason is also important: While even in the future, agricultural production in the Negev may remain limited due to economic considerations, urban development may justify the often-large investment required for the provision of fresh water.
AB - The Negev region occupies nearly two-third of Israel's land area (21,671 km2) but hosts less than 9% of its 6.5 million strong population. Until recently, the process of desertification did not affect the Negev profoundly. This was mainly due to large-scale afforestation programs, restrictions imposed on grazing, and large water subsidies from the less arid part of the country to its more arid part. However, there are some indications that the process of desertification in the Negev has already started and may accelerate in the future. In light of this trend, the efficient long-term strategy for the Negev's development is essential. The present study compares two alternative strategies of the Negev's future development: agricultural expansion vs. urbanization path. Two basic criteria - the minimization of adverse environmental impacts and economic feasibility - are used for the evaluation. The urbanization path is found to be preferable. Since agriculture and livestock grazing are the major contributors to desertification, replacing them with urban development may lessen the risk of desertification in the future. In contrast, urban development, if properly planned and regulated, may reduce the spatial extent of the area affected by agricultural development, and thus minimize the anthropogenic impact on the desert environment. Economic reason is also important: While even in the future, agricultural production in the Negev may remain limited due to economic considerations, urban development may justify the often-large investment required for the provision of fresh water.
KW - Agricultural development
KW - Desertification
KW - Drylands
KW - Urbanization
UR - http://www.scopus.com/inward/record.url?scp=1242310514&partnerID=8YFLogxK
U2 - 10.1016/S0140-1963(03)00087-9
DO - 10.1016/S0140-1963(03)00087-9
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AN - SCOPUS:1242310514
SN - 0140-1963
VL - 56
SP - 659
EP - 680
JO - Journal of Arid Environments
JF - Journal of Arid Environments
IS - 4
ER -