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The Study On Evaluation To Sustainable Management About Edible Fungus Intercropping Woods Model Based On Vague Sets Theory

Posted on:2017-03-04Degree:MasterType:Thesis
Country:ChinaCandidate:Q C ChenFull Text:PDF
GTID:2283330485964622Subject:Forest management
Abstract/Summary:PDF Full Text Request
Complexing and diversing ecological environment bred a rich edible fungus resources with a vest land of China. Our country was one of the first countries to identify the use of the mushroom resources. Because of limited strength, how to use of collective forest sustainably, increase farmers’ income, and play forest ecological benefits is an urgent problem needed to solve,since the rise of the national collective forest tenure reform. As a development model of forest economy, edible fungus intercropping woods model is suitable for the implementation of modern forestry development in emerging industries due to the nature of their ecological and economic systems. From the current development of edible fungus intercropping woods model of view, the industry has begun to take shape. Current research on economic evaluation of under forest mostly were regional evaluations, but the single modes were less. Therefore, relevant research about evaluation system and evaluation methods to strengthen edible fungus intercropping woods model had a great of significance to provide a proper guidance of scientific development.Based on the summarize about the basic concepts cultivation techniques and evaluation study status of edible fungus intercropping woods model, the sustainable management evaluation system was built with the guide of modern economic development theory. The revenue of edible fungus intercropping woods model was analyzed by using Emergy analysis theoy, and the Vague theory was introduced to evaluated forest mushroom mode, with a empirical analysis In Datian County. The main results were as follows:(1) The results of Emergy analysis about edible fungus intercropping woods model in Datian County showed that the edible fungus intercropping woods model production had a small pressure to environment. The production factors were relied mainly on natural resources. The non-renewable resources used in systems production mainly were human resources. The system’s average EER was 4.10, indicating that the seller could get a higher real benefit in market transaction. At the same time, the average EER reflected the forest ecology values which was needed in the growth process of edible fungus, that was more suitable to express the profit situation of wild edible fungi in trading.(2) The study about Vague theory was introduced in sustainable management evaluation methods, which had shown that:Vague theory could effectively express the positive information, negative information and uncertain information in the evaluation process, making the evaluation results more accurate. The sustainability of the system and each of these indicators were effectively reflected by the advantage function determination. The comparative advantage between multiple objects which belong to the same evaluation level could be determined by Vague sets similarity comparison. The development of the system could be reflected by comparison of the evaluation results and optimal state.(3) The operation during 2011 and 2014 of edible fungus intercropping woods model in Datian County was empirical analyzed by the Vague theory evaluation methods. The evaluation results indicated that edible fungus intercropping woods model in Datian County was in a stable state of development and which has a good prospects. The two years evaluation results both were "better sustainability". The overall system played good ecological benefits, higher economic benefits and stable social benefits. Compared to 2011, the operating conditions of 2014 had a certain development and progress, mainly in the economic and social developments. The key to restrict the system development was the government support and the intensification of industry.
Keywords/Search Tags:Edible fungus intercropping woods model, Sustainable Management, Evaluation, Vague sets, Emergy analysis
PDF Full Text Request
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