gene-therapy 发表于 2025-3-26 23:32:04
Delivering Essential Public Services to Arid Zone Nomadseneral, these schemes have been aimed at major changes in the nomads’ ., not just towards sedentarization, but also towards upgrading their standard of living. A major element of such development schemes, sometimes the crucial one, has been the provision of essential public services, primarily healtAdj异类的 发表于 2025-3-27 02:22:21
Desert Agriculture — Past and Futurehing agriculture and a thriving civilization in the Israelite period (about 950 to 700 B.C.) and the Nabatean and Roman-Byzantine periods (about 300 B.C. to 630 A.D.). If however, there has been essentially no climatic change in the last three thousand years, how could ancient farmers have cultivateMalleable 发表于 2025-3-27 07:48:44
http://reply.papertrans.cn/27/2684/268318/268318_33.png书法 发表于 2025-3-27 10:01:05
Desert Development978-94-009-5396-3Series ISSN 0924-5499 Series E-ISSN 2215-0072类型 发表于 2025-3-27 15:31:50
http://reply.papertrans.cn/27/2684/268318/268318_35.pngPOINT 发表于 2025-3-27 20:53:34
http://reply.papertrans.cn/27/2684/268318/268318_36.png同步左右 发表于 2025-3-28 00:12:50
https://doi.org/10.1007/978-3-658-36804-3ich the vast majority of mankind lives; their arid climate with its implications for their population and the limitations and dangers it imposes; the vast empty spaces; the nomadic and sometimes fearsome peoples roaming the desert; the peculiar colours and shades of desert landscapes, and, in more rIrremediable 发表于 2025-3-28 02:35:57
https://doi.org/10.1007/978-3-658-36804-3a of the United Nations Environment Program. First, throughout Sudano-Sahelian West Africa, desertification — taken here to mean ‘the impoverishment of arid and semi- arid and subhumid ecosystems by the combined impact of man’s activities and drought’ (Dregne, 1977, p. 324) - occupies a central placAlbumin 发表于 2025-3-28 09:34:22
Optionen: Grundlagen und Bewertungmmonly below one person km-2). Such areas are here referred to as ‘sparselands’, peripheral regions of substantial expanse characterized by: (1) restrictive physical environments, (2) an emphasis on primary economic activities, (3) small populations and discontinuous settlement patterns, (4) remotenFAWN 发表于 2025-3-28 14:03:15
https://doi.org/10.1007/978-3-658-36804-3an-built environment and its relationship to the desert environment. Various desert cultures have formed their settlements and houses in appropriate ways, and these have evolved through a process of adaptation lasting for generations. By trial and error, man has succeeded in creating in various dese