描述:
governors of HAN
Dynasty. The policy was carried out in most area of the west and the north. In
DONGHAN Dynasty, it also appeared in the inner area. The thesis is to tell opening
up wasteland and analyses the origin and features of opening up wasteland to get the
conclusion: Opening up wasteland in ancient times began in War times and was
developed fully in HAN Dynasty. Opening up wasteland in northwest area of HAN
Dynasty was only a comprehensive policy to defend the country, including the
content of politics
、
military and economy. It was t not for the people but for the
country. The policy was spread and lasted for a long time. In economy, it promoted
the development of agricultural economy in northwest area by bringing new tools and
ways of farming, which also joined the relationship between the central area and the
northwest. In politics, it laid a solid foundation for the unity of northwest area and the
victory against HUN. In culture, it advanced the communication and joint among
different races. Meanwhile, it was a base for opening up wasteland by troops and
common people in Cao Wei period.
描述:
cultivation development process to
be especialty difficult, frequent occurrence of multiple disasters, the development of the
Northwest Territories are important constraints, the reduction of agricultural land, agriculture,
the substantial loss of population, agriculture, infrastructure damage, agricultural ecological
environment and the poor. Based on this, the north-west areas of the process of agricultural
drought introduced varieties, select a variety of agricultural disaster mitigation technology. In
this paper, the Northwest Territories to explore the Ming and Qing Dynasties of natural
disasters on agricultural production hazards, damage the rural economy and livelihood of the
affected farmers. By the six parts.