贞洁
发表于 2025-3-30 09:52:20
High Technology Alternatives for Educational Systems in Sparsely Settled Zones: The Case of The IsraDevelopment and settlement plans of unpopulated or sparsely populated regions are usually aimed at fulfilling national goals, such as development of peripheral and remote regions, population dispersion, national security, natural resources development, regional ethnic balancing etc.
Ordeal
发表于 2025-3-30 15:43:03
Remote Sensing for Arid Zone DevelopingIn any environment, a large part of a development project is devoted to gathering and interpreting information on land resources and land use.
不足的东西
发表于 2025-3-30 19:31:56
http://reply.papertrans.cn/27/2684/268318/268318_53.png
聋子
发表于 2025-3-30 23:16:07
http://reply.papertrans.cn/27/2684/268318/268318_54.png
magnate
发表于 2025-3-31 04:44:45
Desert Dune Sand and its Potential for Modern Agricultural Developmentuth Africa and Australia (Figure 1). Other areas of the same deserts, about 2 000 000 km2 in all, are covered by fixed sand (Wilson, 1973). These vast areas are the largest potential reserves of soil for agriculture for the overpopulated world.