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to strengthen the environmental protection and ecology of longdong loess plateau governance, taking the Qingyang city located in the loess hilly-gully region as an example, using the way of empirical analysis, and using many countries experience , the paper studies the ecological agriculture development model and development environment, and puts forward specific way to accelerate the development of ecological agriculture, the aim is to realize the agricultural sustainable development in the loess plateau. Introduction With the continuous improvement of living standards, the concept of sustainable development has been growing, people gradually pay attention to the protection of natural environment, the development of ecological agriculture has become a general trend. Ecological agriculture in our country is to agricultural production and rural economic development, efficient utilization of resources, protecting environment, and integration of new agriculture system, it is a strategic decision of agricultural development, is also a necessary choice for the sustainable development of rural areas. Loess plateau is a typical farming-pastoral region in our country and fragile ecological environment area, is also the heart of dry land agriculture in our country, the region contains the rich resources of arable land and sunlight, deep loose loess and widely distributed on the unique ecological environment, with intensive production and the potential advantages of scale operation, but the water resources and environmental problems have been bothering the disadvantage factor in the development of agriculture, the agricultural system productivity level is low in the region. Qingyang is a typical representative of the loess plateau area, agriculture is the leading industry of Qingyang, under pressure from resources and environment, the sustainable development will inevitably face severe challenges. In Qingyang city as an example, this article adopts the empirical analysis method, analyze the current situation of the development of ecological agriculture in the region, using the experience of the development of relevant countries, put forward the development idea of Qingyang ecological agriculture, to improve the efficiency of the loess plateau ecological agriculture provide beneficial reference. Current Situation of the Development of Ecological Agriculture in the Study Area Profile in the study area .Locates in the eastern part of Gansu province, and in the southwestern Ordos basin, Qingyang city is the loess plateau gully region, is also the main component of longdong loess plateau. the terrain is of high middle and low around the basin, the climate type is temperate semi-arid continental monsoon , the rainfall is of more than south north, less total land area of 27117.27 square kilometers, the total population was 2.2235 million, including the rural population accounted for 68.5%. The city covers Xifeng, Qingyang, Huachi, Heshui,Zhengyuan, Ningxian,Zhengning county, the altitude is between 885-2082 m above sea level, the central and southern is loess plateau gully region, the north and the east are loess hilly-gully region. There are 12 big tableland throughout 6667 hm2 (1 acres), involving Qingyang, zhengning, heshui, xifeng, it is also the world's largest, soil the thickest, the most intact loess table-land, so can be called "the first loess tableland in the world". Therefore, as an example to study the ecological agriculture development ,longdong loess plateau in Qingyang city has strong representative. Since the founding of the People's Republic of China, especially since the reform and opening, economic rapid development on the basis of the original Qingyang, speeding up the growth rate of 2nd International Conference on Economy, Management and Education Technology (ICEMET 2016) © 2016. The authors Published by Atlantis Press 619 economy, the city GDP in 2014, 66.886 billion yuan, 8.062 billion yuan of the added value of agriculture, total grain output of 1.6423 million tons, farmers per capita net income of 5499 yuan. Qingyang contains rich natural resources, among them, 2.847 billion tons of oil reserves make Qingyang changqing oilfield producing, 236 billion tons of coal to make coal reserves accounted for 94% of total gansu Qingyang; Rich in wheat, corn, oil and other crops and buckwheat, millet, oats and other small grains make Qingyang known as the "longdong granary" of reputation. Rich in natural resources and did not give full play to its comparative advantage, also did not translate into the local economy advantage. The ratio of the three industries of Qingyang city in 2014 was 11.6:59.8:28.6, the ratio of heavy industrial output value as high as 2.4, 97.6, place after the deduction of the state-owned enterprise production industry output value proportion is very small, industrial failed to pull effect on the local economic formation obviously, agriculture in Qingyang still plays a dominant role in the economy. The Main Mode of Ecological Agriculture Development of Qingyang City The characteristic management, the scale operation of industry economy. Based on its characteristics of Qingyang city resources, cultivating the backbone of the agricultural products processing enterprises with good market demand, to the road of scale, specialization, has initially formed to develop characteristic economy industrialization development mode. Among them, the original county town give full play to the consumption of the resource superiority of apricot, by developing a series of special products, has been formed mainly apricot products processing agricultural and sideline products processing industry, not only can make the farmers to increase income of more than 3280 ten thousand yuan a year, and powerful driving the development of the agricultural industrialization; Zhengning using JiuLongChuan distinct seasons, sufficient sunlight natural conditions and convenient highway transportation, built mainly gold jujube, apple fruit, which is mainly composed of greenhouse pollution-free vegetable production bases and characteristics of agricultural science and technology demonstration garden, at the base and demonstration garden, melon and fruit vegetables production accounts for nearly three years the county-wide average is as high as 17.1% of GDP. Adjust measures to local conditions, the result of the development of the green economy. To protect the ecological environment, improve the comprehensive agricultural production capacity, Qingyang city have been taken industry development plan of the northern area ,such as huachi ,huan county. There have been Qingyang green xin,Tongda fruit company and other large-scale breeding products processing enterprises, which is annual processing capacity of more than 2500 tons. Under the drive of leading enterprises, the city's production of beef, meat, wool sheep, pig respectively reached 675000, 675000 and 1.141 million, the output of meat, milk and eggs was up to 123000 tons. Of farming and animal husbandry development co., LTD. Investment in gansu industrialization project of broilers, feed processing, poultry slaughter segmentation, meatballs sausage meat and bone meal production to feather processing, sewage treatment, has formed a complete industrial chain, the whole value chain, complete cycle chain in the "model". The development of breeding industry, not only can effectively prevent water loss and soil erosion and sand disasters, inhibition of soil salinization, and can drive the related industries, increase farmers' income. Low energy efficiency, recycling model of courtyard economy. The model is in accordance with the agricultural ecosystem energy flow and material cycle to form an ecological agriculture pattern. Because our country countryside still with small-scale decentralized family business as the main body, rural households is relatively independent economic unit, so the yard is widely used in the rural economy. Qingyang city garden ecological economy is based on the climate characteristics and the status quo of the resources, guiding farmers to make full use of the house and the yard behind the house of idle land, such as housing, orchards, farmland and grassland resources and other factors of production, by planting flowers, vegetables, medicinal herbs, fruit trees and other economic crops, and raising pigs, cattle, sheep, chickens and other animals, make full use of light, heat, water and soil resources, the rational allocation of biogas, greenhouse, a fruit and library, granary, reduce fuel, feed and fertilizer inputs, multilayer formation energy conversion in the courtyard, efficient utilization of resources, ecological virtuous circle of integrated production

Loess plateau ecological agricultural development thinking-take an example of Qingyang city, Gansu province