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The black soil area in Heilongjiang Province is an important grain production base in China, food production is directly related to China's food security and sustainable development of China's national economy. Last century since the 1990s, under the influence of the technology revolution food increase production, but in recent years, the growth rate is not great, mainly due to the impact of a variety of natural conditions and human factors in the reclamation process, leading to worsening soil erosion The black soil organic matter content decreased year by year. Farming black soil ecosystem facing the current situation make ends meet, has a tough challenge for the future of farmland ecological sustainable development. Therefore, the current situation and existing problems of the black soil farmland ecosystem has become the focus of attention of the government and scientists. In this paper, emergy analysis theory of Heilongjiang Province farming black soil ecosystem study of matter and energy, and renewable energy sources into the natural environment of the farming black soil ecosystem by looking up data, field surveys, computer data processing approach, the natural environment non-renewable energy can not be updated industrial auxiliary organic energy can update basis, calculated by the the specific emergy indicators, analysis the impact and contribution of the natural, human, social and economic activities, and science and technology of farming black soil ecosystem. This method to solve the original can not be added in the agro-ecosystems and compared to a variety of industrial and biomass, solar value can now common substance sum compared to a comprehensive and objective analysis of natural resources human socio-economic activities of black land, as well as the sustainable use of resources of the black condition. The innovation of this article, the first in the choice of research plots: black soil in Heilongjiang Province, a total area of ??482.5 hectares, black agricultural area of ??3.606 million hectares of arable land is the main farming soil in Heilongjiang Province, in the main city covered by black soil distribution, the District County centralized distribution statistics, found that: Hulan District, Harbin the Hailun, Harbin Bayan County, Qiqihar Baiquan County, Suihua City, black soil distribution most concentrated in five points Hulan District of Kang Jin town of Black Soil in 174,168 acres of arable land, accounting for more than 80% of the town's total area of ??Bayan town's booming a black agricultural land area of ??2,158,311 acres, accounting for 92.1% of the total agricultural land area, has a strong representation of black studies; these two sampling point black natural distribution area consistent with the administrative regions, and investigation of the integrity of the statistics in the future, the systematic analysis of the basic conditions necessary; followed by the use of emergy analysis theory, Emergy analysis indicators land the status of utilization, land productivity, the level of local economic development, the farmland ecosystems dependent on the natural environment and the black soil sustainable development potential diagnosis and the farmland ecosystems exist to give a scientific and reasonable suggestions for improvement. Emergy analysis results show that: within the past five years farming in Heilongjiang Province, black soil ecosystem inputs can update value less natural resources, less than the total of 10% of the value invested; purchased emergy industrial auxiliary energy value of the total emergy more than 90%, of which a significant proportion of fertilizers and agricultural machinery power emergy This shows the high level of agricultural mechanization, on the other hand also shows that a large amount of agricultural fertilizer inputs; update of inadequate investment in energy value of organic energy 1%, mainly the one hand, after the mechanical operations of the Charge of the need to reduce, and decreases the amount of livestock, organic fertilizer to reduce the other hand, returning straw to very few, farmland ecosystem for the purchase of the energy value of the dependent makes the environment increasing pressure on the land itself, environmental loading ratio continued growth in five years. Ecosystem Emergy Sustainability Index (ESI), it indicates that the economic system is still full of vitality and development potential, farming black soil ecosystem ESI in Heilongjiang Province in 2005, the highest value reached between 1-10 9.2,2009 hovering around 2, indicating that the system is moving in the direction of sustainable development efforts. In order to better maintain farmland balance between matter and energy, the path of sustainable development to achieve the farmland ecosystem ecological benefits, the path of sustainable development, based on analysis theory can cure, I suggest mainly from the following five aspects of farming black ecosystem regulation: First, expand the system of Basic Energy; increase agricultural productivity, strengthen renewable resources utilization; adjust from outside the system to buy emergy reduce the environmental load rate; Fourth, improve the ecological agriculture science and technology support system; five steady progress in large-scale land operation, the land assets industrialization.
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