Study On The Development THistory Of Hehuang Region

The Hehuang area has vast territory and abundant resources, the quantity of human being is rarely small, the natural resources is very abundant, which is a more ideal region that carries on agriculture product and economic development, should become the key and point district of agriculture development history in Qinghai and ecological environment history research. Pass by the extreme prosperity of Han and the early Tang dynasty, The center of gravity of national economic moved to the south lead to Hehuang region and agriculture in the whole western region product and social economic development of slowness. Although at Ming and Qing dynasties the agriculture development of the Hehuang region presents the power of the tide once, the weak agricultural power structure and form already settled down, has been the poor and unproductive area of desolate pronoun.This article passes the agriculture development problem to the Hehuang region to carry on a study, about the position of the district in the national political history background and the management means of central plains dynasty in this district , the race and population of change residence and move to place, water conservancy construction, the special way of land development, the change of agriculture development scope, and variety of farm crop cultivate and distribute...etc. carried on concrete analysis, craved for to recover possibly the natural and humanities view of the Hehuang region the natural and humanities view which are influenced by the general situation of each history development period, and under the influence of mankind agriculture development and exploitation ecological environment of Hehuang area which turn into ecological environment which has more counter-effect to the mechanism of the process of agriculture development to carry on system analysis.This article is divided into six chapters, chapter 1 is an introduction, mainly including research purpose and meaning, the basis of research, domestic and international research present condition, study contents and textual innovation.Chapter 2 is about the weather and complications diverse geography characteristic that concerning the plateau mainland changes brings for the influence of agriculture development, this can explain that the agriculture development change of the Hehuang region in each history development period and function mechanism to some extent. Also analyzed agriculture development to the region at the same time bring of environment effect, point out that the unreasonable agriculture development is the main factor that causes a bad ecological environment in Qinghai at present.Chapter 3 elaborates the race and population of change residence and move to place of Hehuang region in particular history period, the change of farm crop structure, the special way of land development and water conservancy construction, craved for to recover possibly the natural and humanities view of the Hehuang region the natural and humanities view which are influenced by the general situation of each history development period.Chapter 4 discusses the agriculture policy adjust way and result of Hehuang region at Ming and Qing dynasties. The Hehuang geography is lower, the weather is warm, products plentiful, densely populated, so as to be suitable for farming and abound in good herding grass. The Hehuang region is the agriculture civilization and the nomad's way of life civilization in history to pound at, collide, exchanges and fusion, certainly will become a safe government popular support and make stronger the northwest place of border defense. Studies the agriculture policy of this district can contribute to thorough understand the national machine clearly performed in the management method of northwest border defense and the social economic condition in Qinghai at then, of course it also can greatly provide history to draw on for today's northwest development at the same time.Chapter 5, the ecological environment of the Hehuang region continuously worsen, certainly changes with the weather of each history period mutually contacts, but more relevant with unreasonable agriculture develop. The most important factor is bearing population pressure to continuously increase in the process, for solving basic food and clothing to live a life, only do persistently enlarge the specific weight of the agriculture produce, but lead to agriculture, wood and herding product structure severity out of tune.