| Summary: | 博士 === 國立中興大學 === 應用經濟學系 === 94 === The primary objective of this study is about the regional agricultural production decision making in order to efficiently allocate regional resources. In the past, scholars often use single criterion and crisp pre-assumptions to study this question. Unfortunately, real-world agricultural situations are much more complex. By using the theory of fuzzy environment, This paper is aimed at improve the efficiency of allocating regional agricultural resources.
By using Zimmerman and Hannan’s concepts, This work uses a fuzzy multi-objective linear programming (FMOLP) model and a fuzzy multi-objective piecewise linear programming (FMOPLP) model to solve the problem of regional agricultural production decision making. The proposed models attempt to efficiently allocate resources under the maximum profit and the minimum labor-day input. The proposed models can yield overall level of satisfaction of the region with goal value and decision variable value. The former can be used in index of the regional agricultural production planning, and the latter can be regarded as decision variable when making production decision. Furthermore, the proposed model leads to a systematic framework for facilitating the production decision process and enabling a decision maker to modify both the fuzzy data and related model parameters. Compared with other Linear Programming models, these models are more efficient.
By using the lotus planters as an example, the major empirical result is that the optimal areas for lotus planting are 198 hectares in the Baihe area. The other 152 hectares should be Set-Aside Land. By field work, This paper also find that in the future five years, farmers are planning to plant 103.7 hectares of lotus. It seems like the agricultural decision makers should encourage farmers to plant more lotus. But,accounting to the field investigation,most farmers are worried about (1) typhoon , (2) the threat of foreign agricultural products , (3) the price and supply of fertilizer , (4) the price of lotus , (5) shortage of man powers , and (6) shortage of water . In order to meet the optimal model, the government should renew their policy for the benefits of the lotus farmers.
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