Decoupling Analysis Of Agricultural Nonpoint Source Pollution And Agricultural Production In The Heilongjiang Land Reclamation Area

China is a large agricultural country, agricultural sustainable development is related to the beneficial of the people’s live. In the current agricultural production, due to excessive use of fertilizers, pesticides, causing the water pollution. In another way, with the expanding livestock industry in rural areas, animal waste pollution has become another major source of pollution of the water environment in rural areas. Water has been the key issues of national concern. In April,2,2015, the State Council issued a circular on the issuance of the Water Pollution Control Plan of Action, which clearly states the specific requirements of Article III to control agricultural nonpoint source pollution, accelerate rural environment remediation. Therefore, quantitative analysis of agricultural non-point source pollution, agricultural pollution discuss the relationship between economic development and for the rational use of agricultural resources, improve the utilization of agricultural data, to maintain the rural ecological environment has important theoretical and practical significance.The Heilongjiang land reclamation area is an important commodity grain base, strategic grain reserve base and sideline products processing base. But with increasing grain output reclamation area, increasing the size of livestock, reclamation agricultural nonpoint source pollution problems have become increasingly prominent, seriously restrict the sustainable development of the agricultural economy of Reclamation. In this paper, the output coefficient model for non-point source pollution in the Heilongjiang land reclamation area of food production and livestock produced in quantitative analysis; secondly, the use of decoupling analysis method to analyze the relationship between economic and environmental pressures reclamation area of food production and livestock produced between; at last, the SD to model the behavior of non-point source pollution characteristics reclamation policy test.The results show:(1) From different sources, the amount of pollution point source livestock excrement produced the largest, followed by fertilizer pollution, pesticide contamination is minimized. From view of different crops, fertilizer pollution, point source pollution generated by the largest rice, corn secondly, the amount of fertilizer pollution produced soybean and wheat planting is relatively small; pesticide pollution, the amount of pollution generated by the largest soybean, small rice contamination; livestock farming, the amount of non-point source pollution breeding pigs, cows produce larger, less cattle. Bureau of Reclamation from a different point of view, the total amount of agricultural nonpoint source pollution is far greater than the west of East No.4 Bureau of five, which Baoquanling Branch, Bureau and other rivers to build the largest amount of pollution, It has a close relationship with the branches crop acreage, livestock scale, the amount of fertilizer and pesticide pollutants leaching rate.(2) The Heilongjiang land reclamation area agricultural production, decoupling relationship with nonpoint source pollution, the main type of weak decoupling. This suggests that the rapid economic development of agriculture, environmental pressures are increasing, but the relatively small rate of increase pressure on the environment, it also shows that there are still some environmental problems in agricultural production, reclamation from achieving sustainable development Green Effort; second, the relationship between the expansion of the large proportion of total coupling, namely economic reclamation rate of increase is less than the rate of increase non-point source pollution, especially in the relationship between food production and fertilizer between point source pollution, this shows a greater degree dependent on chemical fertilizers increase food production on applying Reclamation, resulted in increased food production environmental pollution increase, therefore,an appropriate amount of fertilizer, improved fertilization technology improve production efficiency is an issue in the reclamation area of agricultural development should focus.(3) After the SD model policy test analysis program running, you can simulate a 2020 Bureau of Agricultural Nonpoint Source Pollution Baoquanling a substantial downward trend in stock, Compared to the amount of pollution before policy adjustment decreased by about 20%. Description of the agricultural non-point source pollution control is imperative to implement appropriate policies.