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Research On Agricultural Ecological Security In Daqing City

Posted on:2014-02-19Degree:MasterType:Thesis
Country:ChinaCandidate:S J GuoFull Text:PDF
GTID:2233330398953863Subject:Agricultural extension
Abstract/Summary:PDF Full Text Request
Ecological security is in a certain time scales, different levels, different types of ecologicalsystem to keep its own normal structure and function and meet the need of human sustainabledevelopment state. It is the sustainable development of agriculture in the core and foundation.Ecological security is the geography, resources and environmental science and ecology theforefront of research tasks and important fields. Agricultural ecological security as an importantpart of the ecological security, has been growing by the Chinese government and scholars’attention. Is generally believed that implementation of the agricultural ecological security strategyis to ensure that the national ecological security one of the important measures to realize thenational ecological security in the target and the premise of the agricultural ecological safety ofconstruction, is the agricultural development in the long run. Realize the regional agriculturalecological safety and agricultural sustainable development, has become the agricultural academiccircles pay attention to an important issue. This study suggests that, the scientific evaluation ofregional agricultural ecological security situation and give serious improvement is the key to solvethis problem.On the basis of the evolution of Daqing City in natural conditions, economic conditions, thestatus of land use, agricultural ecological status and Daqing City agro-ecological conditions, theintegrated use of the theory of ecosystem, agroecology function theory, combined with the pressure-state-response(PSR) classification framework model to build the Daqing City agro-ecologicalsafety evaluation index system, using AHP to determine its weight, and the use of a compositeindex method to calculate the degree of Daqing City agro-ecological insecurity, a Brief analysis ofDaqing City in agricultureecological security of the main problems, and put forward theirdevelopment tactics.The main contents and results are as follows:(1) Agricultural Ecological Security in Daqing City Construction of Index System. Based onthe understanding of the concept of ecological security index system design principles, theintegrated use of ecological systems theory, the classification framework of agroecology functionaltheory, the principle of environmental Kuznets curve and the OECD P-S-R (Pressure-State-Response) theoretical system security mechanisms to build agro-ecosystems, including pressure,state, response of15evaluation of the three major systems of Daqing City, agro-ecological safety evaluation index system. The system is divided into the target layer, criteria and index target layerDaqing agricultural ecological safety, comprehensive characterization of the agro-ecological trendsin Daqing City, the criterion level agro-ecological constraints Daqing City safe, selection ofagricultural ecological pressure, agro-ecological status and agro-ecological response as the basisfor the evaluation of the criteria layer. Index layer by direct measurement or indirect indicatorsconstitute the most basic indicator of Daqing agricultural ecological safety evaluation indexsystem, but also directly reflect the characteristics of the layers. Using AHP to determine theweight.(2) Daqing City Agricultural Ecological Security Evaluation. Collected indicator data, theestablishment of comprehensive evaluation model based on comprehensive index method to findthe Composite Index, Daqing City, agricultural ecological security assessment, and the division ofthe Regional Ecological Security Assessment level, combined with the Daqing Cityagro-ecological safety evaluation composite index to arrive at the Daqing City agriculturalEcological Security classification and agro-ecological pressure, agro-ecological status,agro-ecological response classification and quantitative analysis on the basis of the evaluationresults obtained Daqing agricultural ecological safety comprehensive evaluation results. Theresults showed that, from2000until2011, Daqing City Characterization of agricultural ecologicalsecurity state overall floating III to Level IV, followed by the warning status, ecological poor.Overall, Daqing City, agro-ecological security status is not very good, in the middle and lowerlevel, needs to be improved, which is a comprehensive state characterization, Daqing Cityagro-ecological has suffered some damage, agro-ecological structure of the system have been somechanges, and easily deteriorate, Daqing City agro-ecological security issues need to be resolved,Daqing City, agro-ecological urgent need to improve.12years of agricultural ecological securityindex for assessing the value of0.5170,0.5784,0.7127,0.6714,0.6221,0.5458,0.5130,0.6063,0.5269,0.6203,0.5077,0.5178,overall fluctuating trend, but the overall level of agriculturalecological security lower, less comprehensive evaluation index, the agricultural ecologicalproblems worrying.(3) Daqing City Agricultural Ecological Security Evaluation rationalization proposals andcountermeasures. Careful analysis and study of the evaluation results, the combined results ofDaqing City, agro-ecological safety level, pressure, state and response classifications obtainedComposite Index Composite Index, based on the Daqing City agro-ecological in-depthunderstanding of the security status of the proposed the Daqing City agro-ecological security thespecific rationalization proposals and countermeasures. Specific measures to improve theindicators of agricultural natural disasters, improve the soil’s natural attributes; speed up theprocess of agricultural industrialization, and effectively improve the income of the farmers;increase investment in science and technology, promote scientific and technological progress andinnovation; strictly control population growth, efforts to improve the cultural quality of the population; protection of the ruralecological environment, reduce environmental pollution; tostrengthen agricultural environmental protection law enforcement and publicity, the popularity ofecological safety knowledge; ecological urban construction in rural areas, and actively adjust thestructure of rural energy.Agricultural Ecological Security Research as the topics at the forefront of the field ofsustainable development of agriculture as a new area of research of national security, maintenanceDaqing agricultural ecological safety is an important guarantee for the sustainable development ofagriculture in Daqing City, is also the comprehensive protection of the ecological environment inHeilongjiang Province, to promote economicsustainable development, and the key to emergingresource-based urban construction, agricultural ecological security in Daqing City, Daqing City inthe formulation of the strategy of sustainable development of agriculture and ecological securitymanagement basis and guidance, Daqing City to promote the sustainable development ofagriculture and ecologicalconstruction has important practical significance.
Keywords/Search Tags:Agricultural ecological security, PSR model, ecological security assessment, DaqingCity
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