農業多功能性，為現今各國農業發展進程中的新典範，其核心概念是各種商品與非商品的聯合生產成果，並特別強調農業的非商品產出，如社會、文化、景觀、生態及環境等功能。在農業多功能性下，國內的農地利用，則面臨著國際農業經濟發展與競爭壓力，及國內地狹人稠、山多平原少等自然因素所產生之農地零細分散與小農經營型態問題。且近年在國內農地資源不足情形下，並有農業生產力衰退，農地低度利用、違法轉用、農業景觀破壞及農地污染等問題相繼發生，亟需檢視與分析農地利用政策之執行成果與現況，以改善符合農村與農民需求及符合農業的多功能性之農地利用策略。 農村社區層級是執行農業多功能性的一個必要之規模，因此本文從農村社區層級來檢視國內所呈現之多功能性現象。從個案農村地區農地利用現況及各階層民眾觀念之訪談結果上，所發現之特點或特色，依不同之面向分別為：一、在生產面上，重視農產品產銷制度；農地能集中化與規模化利用；珍惜農地資源合理有效利用農地；重視農產品之品質與食品安全；農地有轉作及輪作以改善生產環境提高生產效益情形；及重視農業之生產知識與技術等。二、在生活與文化面上，能將農業與休閒、遊憩、觀光之結合；耕作農民老化與多有幫農之情形；定期舉辦農村產業文化活動等。三、在生態環境面上之特點則有，重視農地污染源之防治；重視有機農產品之推廣；重視農地的使用管制等。顯示農業多功能性理念在農村社會中亦能廣受地方菁英及民眾之支持及有所實踐。但同時也發現農地低度利用、違法轉用、農業景觀破壞及農地污染等問題仍有許多改善的空間。 國內目前所推行之「農地銀行」與「小地主大佃農」等農地利用政策，雖有助於擴大農地經營規模利用及改善農民生活，但在執行上尚未具顯著之成效。本研究之訪談結果亦發現，受訪者對此兩種政策多不甚瞭解。經解說與互動後，民眾亦提供了許多不同之意見。例如，目前租賃農地之方式，多僅以口頭上約定繳租之方式即成交，係由於過去所施行之三七五租佃制度仍讓農地所有權人擔心。及若無農地租賃書面契約，辦理農業貸款困難，影響農業之經營等之民眾意見。顯見國內政策仍有諸多改進的空間。此改進策略上，本研究所引介之日本「農地保有合理化事業制度」，受訪民眾多有認為，可擷取其優點提供作為國內農地利用策略調整之參考。

水源，是水田利用最重要的因素，直接影響了水田所展現的多功能性。多功能性之概念，係表彰農業生產已由經濟功能轉變為兼具其他服務功能，強調農業生產不僅創造商品的價值，亦提供其他產出的非商品價值。並可歸納出具有生產經濟、生態環境與社會文化功能。而倡導多功能性之最終目的，在於農業永續發展。 本研究個案位於彰化縣溪州鄉。此鄉因有莿仔埤圳引入濁水溪灌溉，生產著名的濁水米，且莿仔埤圳亦為溪州鄉農業之命脈。近二十年來，溪州鄉歷經「集集共同引水」工程、中科四期搶水事件、護水行動與水田濕地計畫等，更加強調農業用水的重要性，以及守護土地的決心。而在護水行動落幕後，溪州鄉的水稻栽培方式，轉變成以無毒農法施作的水田濕地。本研究以文獻評析與深度訪談的方式，探討溪州鄉之水田利用歷程，並以護水行動為界，將溪州鄉水田利用方式劃分為慣行與無毒水田利用。並分別比較兩種水田利用方式，所展現出多功能性之差異。研究結果顯示，無毒水田之利用，特別是在生態環境的層面，較能夠為溪州鄉延續土地、動植物與人體健康，進而創造永續價值。 進而，本研究再以Jordan & Warner（2010）所提出的多功能性發展模式，探討模式中產業發展、農業生態夥伴關係與超級系統中，溪州鄉無毒水田利用所面臨之發展困境與課題。研究結果顯示，溪州鄉的無毒水田利用，已具備產業發展層次，並約略形成農業生態夥伴關係，惟超級系統層次尚未成形。此表示溪州鄉無毒水田利用的多功能性推廣，仍有其完備與不足之處。本研究認為，認為若能解決在內部管理、無毒水田的集中化管理，以及政府機關的資源整合、產業輔導、有機資材取得問題，並將有助於凝聚溪州全鄉之永續發展意識，使更多農民投入無毒水田栽培，或能成為傳統慣行農鄉轉變為無毒農鄉之典範。 / Water is the most important factor of paddy field utilization, and affect its multifunctionality directly. The concept of multifunctionality recognizes that the economic function of agricultural production has been transformed into other services, not only creating commodities, but also providing the value of non-commodity outputs. In fact, the goal of multifunctionality is to develop sustainable agriculture. This case study is located in Xizhou Township, Changhua County. Because Chi Tsai Pi furrow irrigation noses Chuo Shui River into Xizhou, this township can produce famous Chuo Shui rice. And for sure, Chi Tsai Pi furrow irrigation is the heart of agriculture in this township. In the past two decades, the township had gone through Chi Chi Conjunctive Diversion Project, grabbing water events of Central Taiwan Science Park’s (CTSP) fourth-phase, defending water action and paddy wetlands plan, people in this township has a great emphasis on the use of water in agriculture, as well as the protection of the land. After the defending water action, the rice cultivation methods in Xizhou has changed into chemical-free farming facilities for paddy wetlands. This research adopts literature and in-depth interviews two ways to explore the use of paddy fields in Xizhou, and compares the use of two separate methods of paddy fields, conventional farming and chemical-free farming, finds out the differences of multifunctionality between these two methods. And the results shows that the chemical-free farming paddy creates the sustainable value. Furthermore, this research explores plights and problems of the chemical-free paddy fields in Xizhou with the multifunctionality development presented by Jordan & Warner (2010),which includes three levels, enterprise development, agroeological partnership and supersystem. The results show that paddy field utilization of Xizhou has formed enterprise development and agroeological partnership, however, supersystem not yet. This represents there are some problems in Xizhou still. This study suggests that if these problems like nternal management, chemical-free paddy centralized management, industry guidance of government agencies, organic materials issues, are solved , will help unite awareness of Xizhou, and made more farmers into chemical-free paddy cultivation.

根據經濟合作發展組織（Organization Economic Cooperation and Development, OECD）對多功能性定義為：具有多重產出的經濟活動，可以同時對社會的各種目標都有所貢獻，亦即多功能性觀念是以活動為導向，並將生產過程與其多重產出的特性相結合，強調農業生產之各種商品與非商品的聯合生產成果。這種農業多功能性是否也在台灣的原住民鄉農業經營逐漸生根，值得深入研析。 以新竹縣尖石鄉石磊部落為例，由於族人多以務農為生，農業收入為其生計來源之一，故對仰賴農業的程度相對較高。然因其位處石門水庫集水區上游，在現行法令的規範下，限制族人從事農耕，造成部落人力外流與農業經濟衰敗，故如何提振高山農業的永續經營發展便成為令人關注的課題。另一方面，早期當地族人對於農業經營型態多採慣行農業之方式，長期不僅影響農地多功能之提供，也逐漸使當地族人之土地利用與土地倫理相悖離。故本文希冀透過檢視新竹縣尖石鄉石磊部落之多功能農業的設計或推廣，或可促進部落農業發展，同時兼顧原住民部落的傳統文化與價值，凝聚部落的社區發展共識，實現永續農業發展的目標，以進一步彰顯農業多功能性之內涵。 本文擬先探討農業功能性之價值與內涵，並以石磊部落為研究個案，探討其從早期慣行農業、逐漸轉型為有機農業之耕作方式，藉文獻分析、深度訪談、參與式觀察等研究方法，探討其如何將部落農業發展與土地永續使用相結合，以及該部落農業於經濟、環境、社會等多功能價值，以期為其他部落農業發展提供可行的方向，並供政府研訂相關政策之參考。

我國農業用地實施休耕補貼之相關政策迄今已逾32年，該政策因長期推行，導致大量農田連續休耕及廢耕，致使生產環境惡化及農地資源浪費，龐大的休耕補貼金額不僅侵蝕國家財政亦讓農民產生不勞而獲之錯覺。農委會冀望透過「調整耕作制度活化農地計畫」的政策目標，本研究選取彰化縣福興鄉、芳苑鄉、大城鄉等領取補貼金額將近該縣半數之農業鄉為樣區，目的在於檢視該政策施行是否具有農業多功能性及永續發展，並就計畫產生的問題擬定對策和修正建議。 　　本研究以文獻分析及深度訪談作為研究方法，透過多功能性的多項評估指標檢視研究結果發現：在經濟生產面向中，量化成果達成率極高，活化農地減少影響鄰地耕作，創造小地主大佃農契機，政策執行成果整體偏向經濟生產面；至於社會生活面，則因農村人口老化、青農返鄉誘因不足與耕地取得不易等，不甚彰顯。另於生態環境面，因多施行慣行農法對於環境較不友善。因而，農業多功能性聯合產出特徵不明顯，離農業永續發展目標仍有距離。 　　本研究建議，政府對休耕地活化補貼政策應再作調整，就商品產出面言，加重申報不實罰責及建立政策退場機制，以確保農業競爭力，並考量因地制宜明定復耕作物項目；就非商品產出面言，應排除耕作困難地補貼，增加環境生態或景觀維護補貼，俾利展現農業多功能，實現永續農業目標。 / Taiwan has been subsidizing the fallowing of agricultural land for 32 years. Due to the long period of execution of the fallowing policy, large areas of agricultural land have been continuously fallowed or abandoned, causing the deterioration of production environment and waste of agricultural resources. In addition, the large amount of subsidy has not only eroded the country’s financial situation, but also caused misconception of farmers of reaping without sowing. The Council of Agriculture expects to achieve the policy objective through adoption of “Adjustment of Farming System and Plan of Revitalizing Fallow Agricultural Land.” This study selects half of the agricultural townships receiving subsidies in Changhua County such as Fuxing Township, Fangyuan Township and Dacheng Township as examples. It aims to examine whether or not this policy is able to facilitate agricultural multi-functionality and sustainable development, in order to formulate countermeasures and suggestions. 　　 　This study utilizes literature review and in-depth interviews as research methods. Through various Multi-functional indices, this study discovered the following phenomenon. First, from the perspective of economic production, the extremely high achieving rate for revitailzing fallow farm land reduces the impact on the farming of neighboring fields, and creates opportunity for small landowners to become big tenant-farmers. The outcomes of policy execution are tilted to the economic production. Second, in terms of the aspect of social life, due to the aging population in the farming villages, less incentives for young farmers to return to hometowns and difficulty of acquiring arable lands, it is difficult to manifest results. Last, regarding the ecological environment, owing to the unfriendliness of conventional farming skill, the characteristics of Multi-functional agricultural outputs are unclear. There is a certain distance to go to reach to goal of sustainable agricultural development. 　This study suggests that the government should adjust the Fallow Land Subsidy Policy. As for the output of Commodity outputs, government should aggravate the penalties for false declaration and establish the exit mechanism, in order to keep the competitiveness of Taiwan’s agriculture. It is essential to clearly indicate the replanting items that suits local circumstance. With regard to the Non Commodity outputs, the subsidy for difficult arable land should be abolished. Nevertheless, the subsidy for maintaining environmental ecology and scenery should be increased. These measures can help achieve the Multi-function of agriculture and realize the goal of sustainable agriculture.

早期政府倡導「客廳即工廠」產業發展政策，卻在土地使用分區劃分不明確、法令規範與管制不嚴謹之下，工廠直接將含有毒性與重金屬廢水，排入灌溉系統，導致農地與其生產的農作物遭到污染，威脅到社會大眾食品安全。截至民國100年底，依環保署公告資料顯示，將近8成的污染農地，整治完成並解除列管，故宣稱污染農地之改善，已達一定成效。然而，目前研究指出，台灣污染農地的整治方式，大多以翻土法進行，僅將污染土壤埋入地底，並非真正清除污染物質。另一方面，政府亦無積極改善污染源，使得部分農地即使整治後再度污染，而必須重新整治。如此情況，不禁讓許多學者質疑這樣整治的實質意義何在。 　　近年來，由於整治技術的侷限，以及龐大整治經費的壓力，對污染土地已不再以整治為唯一考量，而是透過風險的概念，藉由轉變土地利用模式，讓受污染土地得以再利用。目前台灣關於污染農地再利用之研究，大抵建議污染農地變更為非農業使用，甚至認為污染農地整治後恢復農用，效益偏低。然而，本研究認為，此等研究未考量到農地維持農用之多功能性，除商品價值外，仍有許多非商品價值，包括環境、生態、景觀等效益。 　　基此，本研究以污染農地整治後再利用，朝向種植非食用作物為主軸，並分為污染農地為何需要再利用，與污染農地如何再利用二大部分進行論述。首先以污染土地再利用的風險原則，融合多功能性之觀點，建立污染農地再利用之理論基礎。而後，進一步研擬三項污染農地再利用方案，包括「植樹造林」、「種植能源作物」、「種植花卉景觀作物」等。本研究認為整治後的污染農地，若推行此三項再利用方案，可兼顧風險原則、發揮農地農用多功能性，並避免繼續種稻威脅食品安全，以及節省政府後續管理成本等。接著，以彰化縣和美鎮作為個案，採用深度訪談的方式，針對和美鎮污染農地農民，與彰化縣污染農地相關承辦人，檢視實際整治與後續利用的困難，以及對於污染農地再利用之想法與建議。 　　最後，透過文獻分析與深度訪談結果，可獲得以下結論：（1）台灣污染農地整治方式以翻土工程為主，對農地造成破壞；（2）污染農地即使整治後，仍可能再度被污染；（3）污染農地整治完成後，以長期休耕為主；（4）台灣處理污染農地，違反再利用之基本原則。有鑑於此，本研究對於污染農地如何再利用，提出以下之政策建議：（1）推動污染農地轉作非食用作物，可創造諸多效益；（2）以中央層級確立污染農地再利用政策；（3）劃設高污染風險農地專區，優先輔導種植非食用作物。此外，必要配套措施包括：（1）依區域條件評選合適的再利用方案，提供技術與後續產銷輔導；（2）重視污染源頭管制，使工業生產者擔負污染責任。 / In the past, government advocated "living room factories" industrial development policies, but without clear land zoning and strict regulations, the factories discharged toxic and heavy metal wastewater into the irrigation system, resulting in agricultural land and the crops were contaminated, and threatened the public food safety. EPA 2011 announcement data shows that nearly 80% of contaminated agricultural land is completely remediated, and it is claimed that the improvement in contaminated agricultural land has reached some success. However, current research indicates that most Taiwan's contaminated agricultural land remediation methods, only buried the contaminated soil into the ground, not really cleaned away the pollutants. On the other hand, the government nor actively improve pollution sources, and therefore some of the agricultural land even after remediation polluted again, which must be remediated again. This situation, many scholars can't help but question what the real significance of such remediation. 　　In recent years, because of technical limitations and remediation　funding pressure on contaminated land, there is no longer only consideration in remediation, but through the concept of risk, by changing land-use patterns, so that contaminated land can be reused or revitalized. The researches on reuse of contaminated agricultural land in Taiwan, most suggest contaminated agricultural land change for non-agricultural use, and even think the benefit of contaminated agricultural land after remediation if keep agricultural use is low. However, this study suggests that past researches neglect the multifunctionality of agriculture, in addition to the value of goods, but there are still many non-commodity values, including environmental, ecological, landscape and other benefits. 　　For this viewpoint, this study concentrates on the reuse of contaminated agricultural land after remediation, and gives first place to grow non-food crops. There are two parts to discuss, including why contaminated agricultural land need to reuse, and how to reuse. First, the study establish the theoretical foundation of contaminated agricultural land reuse, which based on the risk principles of contaminated land reuse and multifunctionality of agriculture. Then, to further develop three contaminated agricultural land reuse programs, including the "trees", "energy crops", "flowers or landscape crop", etc. This study suggests that if contaminated agricultural land after remediation can implement the three reuse programs, it can not only take into account the risk principle and multifunctionality of agriculture, but also avoid threats to food safety, as well as saving the government follow-up management costs. Next, Hemei Township, Changhua County, as a case study, using depth interview for the Hemei town contaminated agricultural land's farmers and Changhua County public servant who deal with contaminated agricultural land remediation. Survey the actual situation and subsequent use difficulties of contamination agricultural land after remediation, as well as their ideas and suggestions of contaminated agricultural land reuse. 　　Finally, through a literature review and interviews results obtained the following conclusions: (1) the main remediation method of contaminated agricultural land in Taiwan is to bury the contaminated soil into the ground, and it causes damage on agricultural land; (2) contaminated agricultural land even after remediation may still be contaminated again; (3) contaminated agricultural land after remediation is mainly long-term fallow; (4) dealing with contaminated agricultural land in Taiwan is in violation of basic reuse principles. Therefore, this study suggests the following policy recommendations for how the contaminated agricultural land to reuse: (1) promote contaminated agricultural land grow non-food crops, it can create many benefits; (2) the central level government establish contaminated agricultural land reuse policies; (3) the designation of the high risk of contaminated agricultural land area, give the first place to help grow non-food crops. In addition, the necessary supporting measures include: (1) select the appropriate reuse program by regional conditions, and provide technical help and sales counseling; (2) emphasize the control of pollution sources, and make industrial producers shoulder the responsibility for the pollution.