描述:
ainly chooses three aspects, the quantity and quality
of farmland, the land system and agricultural technology, to analysis the fact that the land system,
the land utilization patterns and the selection of agricultural technology are constrained by natural
environment and land resources, accordingly reveal the main-land relationship which is influenced
by natural environment. The thesis is composed of four parts.
描述:
ainly chooses three aspects, the quantity and quality
of farmland, the land system and agricultural technology, to analysis the fact that the land system,
the land utilization patterns and the selection of agricultural technology are constrained by natural
environment and land resources, accordingly reveal the main-land relationship which is influenced
by natural environment. The thesis is composed of four parts.
描述:
Mething of Dunlruang area of the tiMe, such as soaial life, final cial situation, legal
condition, geographical topography. Manners and custoMs and so on. And it provides us ;3n extreMely
valuable historical inforMation to know the legal systeM, social and econoMic life of Tang ;gong.
描述:
society. The central
Shaanxi Province lies in the northwest inner-land, lacking in water resources. Although
there have been major farmland irrigation projects and perfect management system in
the Qin and Han Dynasty, the times of the Sui and Tang Dynasty, the situation of water
depletion could not be changed radically.
描述:
society. The central
Shaanxi Province lies in the northwest inner-land, lacking in water resources. Although
there have been major farmland irrigation projects and perfect management system in
the Qin and Han Dynasty, the times of the Sui and Tang Dynasty, the situation of water
depletion could not be changed radically.