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Titlebook: Afforestation in Arid Zones; R. N. Kaul Book 1970 Dr. W. Junk N.V., Publishers, The Hague 1970 desert.extreme conditions.forest.forestry.p

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樓主: palliative
51#
發(fā)表于 2025-3-30 11:42:09 | 只看該作者
52#
發(fā)表于 2025-3-30 13:49:54 | 只看該作者
Israel the country were formerly much more wooded than they are today, there is no reason to believe that there ever existed any forests in the arid zone proper, while part of the semi-arid zone at higher elevations may have supported extensive woodlands, only remnants of which still persist. After World
53#
發(fā)表于 2025-3-30 17:40:39 | 只看該作者
54#
發(fā)表于 2025-3-31 00:01:19 | 只看該作者
55#
發(fā)表于 2025-3-31 01:36:57 | 只看該作者
The Republic of Argentina Sur, Sandwich del Sur, Orcadas, Pincton, Nueva and Lennox). The continental area is about 2,780,000 km.. Of this, almost two-thirds of the area (approximately 2,122,500 km.) is classified as arid and semi- arid. This region in general is west of the 800 mm isohyet. The western boundary of the semi-
56#
發(fā)表于 2025-3-31 05:32:01 | 只看該作者
Australiaof trees in the arid zone is aimed mainly at the amelioration of living conditions for the sparse human and animal population or as a strategic reserve for stock fodder in times of major droughts. In the semi-arid zone, with its less severe environment and greater population density, trees are used
57#
發(fā)表于 2025-3-31 09:38:00 | 只看該作者
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