本研究之目的旨在了解國內農業用水之用水現況,並訂定農業用水所需水量之合理範圍,藉以提高用水效率、促進用水合理化。農業用水項目包括灌溉用水、養殖用水與畜牧用水。其中灌溉用水部分,本研究參考國內外灌溉用水各相關資料,以現階段國內各作物之灌溉用水量相關研究,並實際訪查農戶之作物用水資料為基礎,同時參考作物係數、蒸發散量、有效雨量、地下水補助量、不同土壤之入滲率及省水灌溉等資料,以訂定十大類作物之合理灌溉用水量範圍;在養殖用水方面,因各地用水特性不同,研究期間分別就漁種別、用水型式、池水鹽度、地下水所佔比例、養殖面積、放養量、池水深、養殖期間與單、混養等因子,以全模式法與逐步迴歸法等分析方式來探討,結果以養殖面積與放養量為最重要之影響因子;在畜牧用水方面,因其用水量佔農業用水之比例甚低,且國內外用水相關研究甚少,因此,暫以國內目前推算所用之單位頭(隻)數用水量進行推估,訂定各畜、禽類之合理畜牧用水量範圍。 The purpose of this study is to understand the current agriculturalwater use in Taiwan. In order to improve the water use efficiency,certain models has been developed to estimate rational limit of wateruse for agriculture. Agricultural water use includes irrigation,aquaculture, and livestock water use. In this program, it is importantto determine a set of indicators to establish the models. Forirrigation water use, the indicator is the cultivated area size ofeach crop. For aquaculture water use, fishpond size or fish amount isused as the indicator by different type of fishes. For livestock wateruse, livestock amount is the only one indicator for the models.
關聯:
第十一屆水利工程研討會論文集(下冊)=Proceedings of the 11th Hydraulic Engineering Conference,頁O57-O62