Urban landscapes combining trees and crops—urban agroforestry (UAF) systems—may offer greater ecological and cultural benefits than annual cropping systems. Interest in UAF is growing, as evidenced by an increasing number of built projects and articles in the popular press and the academic literature on the subject.
結合樹木與農作物的城市景觀－即都市混林農業系統（Urban Agroforestry System, UAF）－相較於單一作物輪作系統，可能帶來更顯著的生態與文化效益。隨著相關實作案例日益增多，以及大眾媒體與學術文獻中相關論述的增加，各界對都市農林系統的關注正持續升溫。
However, the practice of UAF appears to far outpace research on its scientific underpinnings or its design. Developing sustainable, resilient UAF sites can be challenging because of biophysical and sociocultural conditions unique to the city; however, cities offer opportunities not found in rural environments including the potential to close open nutrient loops between consumers and sites of food production.
然而，城市混林農業實踐的發展速度似乎遠遠超越了對其科學基礎與設計原理的研究。由於城市獨有的生物物理與社會文化條件，開發可持續且具韌性的都市混林農業的基地可能面臨挑戰；然而城市環境提供了鄉村地區所缺乏的契機，包括閉合消費者與糧食生產基地之間開放營養循環的潛力。
We argue that these biophysical and sociocultural challenges and opportunities can be best addressed through an evidence-based approach to the design of UAF systems and a complex ecological aesthetic design language integrating theory, principles, and practices from urban agroecology and allied fields, environmental psychology, and landscape architecture.
我們主張，這些生物物理與社會文化層面的挑戰與機遇，最理想的解決之道在於採用循證方法設計未開發農地系統，並運用融合城市農業生態學及相關領域理論、原則與實踐，結合環境心理學與景觀建築學的複雜生態美學設計語言。
The resulting multifunctional UAF systems would be socially sustainable and equitable and promote the circular metabolism of the city. Drawing on a purposive review of literature from these disciplines, we propose a preliminary framework consisting of 14 guidelines and complementary principles and strategies for the design of multifunctional, culturally preferred UAF and offer recommendations for future research.
由此產生的多功能都市混林農業系統將具備社會永續性與公平性，並促進城市的循環代謝。透過對相關學科文獻的目標性回顧，我們提出初步框架，包含 14 項設計準則及配套的補充原則與策略，用以規劃多功能且符合文化偏好的未開發土地，並為未來研究提供建議方向。