农业区位成分(国外英文资料).doc

农业区位因素(国外英文资料) Influence factors include agricultural location, natural conditions and social economic factors for the natural conditions of climate, topography, soil, water, heat, light, temperature difference; social and economic factors including market demand, transportation, national policy, agricultural production technology, industry foundation, labor force, a price level. Natural conditions 1. climate: heat, light, precipitation, monsoon and other climatic factors have great influence on agricultural areas. They are the most important factors affecting crop distribution and agricultural development. Different plants require different climatic conditions, climatic conditions and distribution has obvious regional differences. Therefore, agriculture in a region, should give full consideration to the climate factors. Water in arid areas: annual precipitation less than 250 mm, in addition to irrigation water, generally not the development of agriculture. 2. terrain: different terrain area, suitable for the development of different types of agriculture. The plain area is flat, deep soil, is conducive to the realization of agricultural water conservancy and mechanization, suitable for the development of farming; mountain farming is inconvenient, and not easy to soil and water conservation, but suitable for the development of animal husbandry. In natural condition of vertical differentiation, the the vertical distribution of crops, diversification. 3. soil: the soil is the material basis for the growth of crops, different kinds of soil, suitable for the growth of different crops. For example, the southeast hills are widely distributed in China acidic red soil, suitable for cultivation of tea. The degree of fertile soil has larger impact on agriculture. For example, Chinas Northeast Plain (Hei Tu), North China Plain (calcareous soil) and other places fertile soil, soybean yield per unit area is higher. Two. The social and economic conditions: 1. market of agricultur