目前，全球的生物多樣性正處于危機之中。風景園林師們有著前所未有的機遇和不可推卸的責任，去運用我們的技能和知識，減少對現(xiàn)有生物多樣性的損害，同時尋找機會去恢復或重建生物多樣性。綠色城市運動和綠色基礎設施概念的提出為我們創(chuàng)造了大量的機會和挑戰(zhàn)，假如把生物多樣性比作一座圖書館，我們需要保護我們已有的書籍，同時還要寫下更多的書，為后代將要面對的挑戰(zhàn)打下基礎。

　　注釋：

　　圖01-02、圖05-07由杰克-埃亨拍攝；圖03-04由JJR-LLC提供；圖08-09由馬卡-約翰/紐約公園管理處提供；圖10-11由紐約公園管理處提供。

　　參考文獻:

　　[1]Ahern, Jack; LeDuc, Elizabeth; York, Mary Lee. Biodiversity Planning and Design: Sustainable Practices. Landscape Architecture Foundation[M].Island Press, Washington,2006.

　　[2]Lister, Nina Marie. Sustainable Large Parks: Ecological Design or Designer Ecology? In:  Large Parks. Hargreaves, George and Czerniak,  Julia, Eds[M]. Architectural Press, New York, Princeton, 2007: 34-54.

　　[3]Secretariat of the Convention on Biological Diversity. Global Biodiversity Outlook 3. Montréal[Z].2010. (www.cdb.int/gbo3).

　　[4]Müller, Norbert, Werner, Peter, Kelcey, John G. Editors.Urban Biodiversity and Design[M]. Wiley-Blackwell. Hoboken,2010.

　　[5]UN Habitat.Ecosystems and Biodiversity, the role of cities[Z]. UNEP, Nairobi,2005. Available at: http://www.unep.org/urban_environment/PDFs/Ecosystems_and_Biodiversity_Role_of_Cities.pdf.

　　[6]Muller Norbert. Distinctive characteristics of urban biodiversity, Curitiba, 26. – 28. March, “Cities and Biodiversity: Achieving the 2010 Biodiversity Target”[Z]. 2007.

　　作者簡介：

　　杰克-埃亨/美國馬薩諸塞大學風景園林系教授、國際項目副教務長

　　Biography:

　　Jack AHERN, who holds a doctorate degree and is Fellow of American Society of Landscape Architects, is a Professor of Landscape Architecture and Vice Provost for International Programs at the University of Massachusetts Amherst.

　　譯者簡介：

　　周嘯/1986年生/男/陜西人/美國馬薩諸塞大學風景園林碩士生/風景園林新青年志愿者

　　About the Translator:

　　ZHOU Xiao, who was born in 1986 and a native of Shann’xi, is a MLA Candidate at the Department of Landscape Architecture & Regional Planning, University of Massachusetts Amherst. He is also a volunteer at Youthla.org.