China's growing environmental pollution problem cannot be ignored, forcing us to re-examine the relationship between people and environment, man and nature. As early as the 20th century, Aldo Leopold, the famous environmentalist of the United States of America who put forward the "land ethic", saw a number of damaged river habitat in the field investigation and felt bitter, which triggered his reflections on the re-understanding of the relationships between people and land.
In 2011 landscape architecture had the honor to become a first-level discipline of China, and in the declaration process, the second-level discipline directions should be determined. Professor Li Xiong of Beijing Forestry University, Profess Gao Chi of Huazhong Agricultural University, and I insisted on ecological restoration as one of the second-level disciplines, and we thought this would be a very important direction of landscape architecture study. In the past thousands of years of human history, landscape architecture was in fact about "beauty". However, after the industrial revolution, urban problems are increasingly grim, brownfields become more and more, and in the next stage of landscape architecture study one of the most important tasks is ecological restoration. Perhaps landscape architecture is the gardenology is the only one to ecological restoration as a discipline of the discipline of the only discipline with two ecological restoration as its second-level discipline, and brownfield regeneration is the most important part of ecological restoration.
How to achieve brownfield regeneration and ecological restoration? Cooperation, actually. The first is multidisciplinary cooperation, the second is the government, university, and enterprise cooperation, the third is the cooperation between various government departments, and the fourth is international cooperation. The basis of cooperation is a common platform for communication and exchange. In September 2016, Tsinghua University School of Architecture, the Technology and Environment Center of Harvard University School of Design, and the Foreign Cooperation Office of the Ministry of Environmental Protection jointly organized the "2016 International Symposium of Brownfield Regeneration and Ecological Restoration", designed to build a common platform for cooperation, and provide multi-sectoral, interdisciplinary, and international exchange opportunities. The theme articles of this month are the selected papers and speeches of the symposium, discussing the brownfield regeneration and ecological restoration related issues from a variety of dimensions.
Niall Kirkwood boldly put forward the concept of "ChinaBrown", emphasizing the need for a broader perspective to look at the renovation of brownfield, which is also an important part of his ongoing "global brown" research. Through the statistical analysis of the journal articles and professional awards award-winning brownfield projects, Zheng Xiaodi revealed the rapid rise in the degree of concern about brownfields in landscape architecture study, and reminded the practitioners to be alert to two errors, in particular, not simply puttinglandscape architecture scenery as "green plaster" to cure brownfield problems, but to make brownfield regeneration more scientifically and comprehensively instead. Gardner, as the government official for the brownfield issue of the USA Environmental Protection Agency, stressed the importance of multi-partycooperation in the process of brownfield regeneration. The other two articles aimed at the problems and potentials in the process of ecological restoration and transformation, respectively, for the two kinds of brownfields, quarrying site and mining waste land.
The successful experience of developed countries is needed for China's brownfield problem, but it must not be simply copied. China's industrial production process and technology, site pollution composition, distribution and diffusion, repair technology, policy standards, the funding sources, management practices, etc., are China's particularity. What is the number of Chinese brownfield? There are only some reference data, but no comprehensive statistical information. This shows two issues: the first, there is much room for the research of brownfield; second, the meaning of brownfield study is limitless. From this point of view, brownfield regeneration and ecological restoration holds and increasingly important position in the landscape architecture discipline and in China.
Finally, I would like to emphasize that brownfield reproduction is not just about the brownfield itself, ecological restoration should not be just about ecology, and the more importantis the human mind and spirit. Only the mind and spirit are renovated,can the brownfield regeneration be really successful!