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:
rinciples of the theory" and "holistic principle", as the main study
followed the principles and methods, strive to occupy a wealth of research datas, focus on first-hand
information from the start, mainly from a literary perspective, but give due consideration to the
geographical composition, attempts to have a more thorough and systematic study and discussion.
描述:
cal changes took place
in China. In the wars lunched against China by France, Japan and the Eight-power
Allied Forces, imperial force made its way into China step by step and China was
transforming itself into a semi-colonial, semi-feudal society.