| Summary: | 碩士 === 中原大學 === 土木工程研究所 === 90 === Abstract
The transitional pools did not have more perfect water supply and drainage system. Recently, the pollution problem in Taiwan is more and more serious. Fishers were in order to take enough and good aquaculture water, so they sat gate and the facilities of pumping to get water by themselves. It resulted in layer depression. Because they used the same canal for water supply and drainage, it caused the problem of fish diseases infection to each other. In order to solve these problems, it is needed to plan and build complete public facilities in aquaculture district.
This study is in order to allocate the building sequence of 42 aquaculture districts fairly and reasonably. Classifying 42 aquaculture districts by area, and taking water method, and water carrier method, and water supply method. According to the report of agricultural Engineering Research Center“Public facilities planning of Aquaculture Demonstration District (1)─water supply program, and public facilities investigating and projecting of 42 Aquaculture Demonstration Districts.”The total engineering cost of planning 42 aquaculture districts together with the results of field investigation collected by Fisheries Administration Council of Agriculture in 2001, and the average survival rate and one fish weight when harvesting and average unit price of main fingerling in 1995~2000 of 42 aquaculture districts. Use these data, analysis the economical benefit of 42 aquaculture districts by cost-benefit ratio method to estimate annual cost, annual benefit, and cost-benefit ratio.
In order to consider both economical benefit and developing balance in every county when we are optimizating. Base on the results of cost-benefit ratio analysis, we can sort all districts in Taiwan and in every county in sequence. The first 15 sequences of 42 districts in Taiwan are Xin-gang district, Yong-hua district, Yong-an district, Mi-tuo district in Gao-xiong county, and Wen-feng district, Fan-zai-lun district, Xia-pu-tou district, Da-zhuang district, Bei-shi-liao district in Ping-dong county, and Xin-gang-bei district, Xia-lun-nan district in Yun-lin county, and Dong-hao-mei district, Xi-xin-dian district in Jia-yi county, and Hai-pu district, Bao-an district in Tai-nan county. These districts’s cost-benefit ratio are all up of 1.8. They have high benefit of investment, so we can build these districts first. The best aquaculture district in every county are Zhuang-wei district in Yi-lan county, and Yong-xing district in Zhang-hua county, and Xin-gang-bei district in Yun-lin county, and Dong-hao-mei district in Jia-yi county, and Hai-pu district in Tai-nan county, and Xin-gang district in Gao-xiong county, and Wen-feng district in Ping-dong county, and Shou-feng district in Hua-lian county. It is worth to build these districts first.
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