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王彪 ( Biao Wang ),郑푸름 ( Poo-reum Jeong ),金锭汶 ( Jeong-moon Kim ) 한중사회과학학회 2023 한중사회과학연구 Vol.21 No.3
随着中国生态文明理念的快速推进, 城市河流的自然性恢复成为提升城市生态环境和促进社会经济融合发展的重要议题。 首先, 本文在相关概念与理论研究的基础上, 提出了新发展阶段背景下的 “城市河流近自然恢复”的定义: 即在保障城市防洪安全的前提下, 以流域空间治理为导向, 综合运用生态工程技术将受损的城市河流及河岸带生态系统恢复至接近受损前的状态, 以提高流域生态系统服务功能与价值, 并通过维持城市水资源、土地资源及各自然景观资源之间的动态平衡, 实现社会经济、自然生态、历史人文等要素融合的全流域生命体恢复。概念的界定对于明晰生态文明建设背景下的 “城市河流近自然恢复”的内涵与外延提供重要理论依据。 其次, 本文从理论、技术、实践及应用等层面全面分析了中国城市河流近自然恢复的研究现状, 并在此基础之上, 总结了当前研究现状的不足。研究表明, 中国城市河流近自然恢复事业虽已取得显著成效, 但多集中在局部河道或河段的研究层面, 以跨学科交叉、跨领域融合、跨地域协同及跨部门合作共同推动流域空间尺度的城市近自然恢复研究较为匮乏。对此, 本文通过进一步分析域外发达国家的城市河流近自然恢复治理经验, 发现域外发达国家已充分树立流域发展观, 并从河流流域生态系统的整体性、系统性及协同性出发, 实现了各专项规划内容的相互衔接和协同发展, 形成了保护流域整体生态环境和促进地区社会、自然、生态、经济和文化融合发展的新格局。 最后, 通过以上分析, 本文认为城市河流作为流域生态系统的重要组成部分, 它不仅参与整个流域的水循环过程, 还与流域内各自然要素、生态环境、社会经济、制度体系及历史文化等要素相互交织, 相互作用。因此, 城市河流近自然恢复应从流域空间尺度入手, 既要考虑局部(河道或河段生态系统恢复)和整体(流域生态系统恢复)的关系, 还需统筹考虑城市规划、资源管理、生态保护、技术支持、社会经济、文化教育、制度建设及公众参与等领域的协同综合治理。基于上述观点, 本文提出了未来中国城市河流近自然恢复的研究思路, 并给出具体建议, 以期为实现美丽中国梦提供参考。 With the rapid advancement of China's ecological civilization concept, the restoration of natural characteristics in urban rivers has become an important issue in enhancing urban ecological environments and promoting the integrated development of society and economy. Firstly, based on relevant concepts and theoretical studies, this paper proposes the definition of “near-natural restoration of urban rivers” in the context of the new development stage: that is, under the premise of guaranteeing urban flood control safety, the spatial management of basin is oriented to restore the damaged urban rivers and riparian zone ecosystems to the near-damaged state by using ecological engineering techniques. In order to improve the ecosystem service function and value of the basin, and to restore the whole basin by maintaining the dynamic balance between urban water resources, land resources and natural landscape resources, and to achieve the integration of socio-economic, natural ecological, historical and humanistic elements. The definition of the concept provides an important theoretical basis for clarifying the connotation and extension of “near-natural restoration of urban rivers” in the context of ecological civilization construction. Secondly, this article comprehensively analyzes the current research status of urban river near-natural restoration in China from theoretical, technical, practical, and applied perspectives. Based on this analysis, the deficiencies in the current research status are summarized. The study indicates that although significant progress has been made in the cause of near-natural restoration of urban rivers in China, the research is mostly concentrated at the level of local river courses or sections. There is a scarcity of interdisciplinary cross-pollination, inter-domain integration, cross-regional collaboration, and interdepartmental cooperation to collectively advance research on urban near-natural restoration at the basin spatial scale. In response, this article further examines the near-natural restoration and management experiences of developed countries outside the domain. It is found that these countries have established a comprehensive basin development perspective and achieved the interconnection and coordinated development of various specialized planning components, starting from the integrity, systematicity, and synergistic nature of river basin ecosystems. This has led to the formation of a new pattern that safeguards the overall ecological environment of the basin and promotes the integrated development of regional society, nature, ecology, economy, and culture. Finally, based on the aforementioned analysis, this article concludes that urban rivers, as crucial components of basin ecosystems, not only participate in the entire basin's water cycle but also interact and intertwine with various natural elements, ecological environments, socio-economic factors, institutional systems, and historical and cultural elements within the basin. Therefore, the near-natural restoration of urban rivers should start from the perspective of the basin spatial scale. It is necessary to consider the relationship between local (ecosystem restoration of river channels or sections) and overall (ecosystem restoration of the basin), while also coordinating comprehensive governance in areas such as urban planning, resource management, ecological protection, technical support, socio-economic factors, cultural education, institutional development, and public participation. Based on these viewpoints, this article proposes research directions for the future near-natural restoration of urban rivers in China and provides specific recommendations in order to contribute to the realization of the vision of a Beautiful China.
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장안진 ( An Jin Chang ),김용일 ( Yong Il Kim ),최석근 ( Seok Keun Choi ),한동엽 ( Dong Yeob Han ),최재완 ( Jae Wan Choi ),김용민 ( Yong Min Kim ),한유경 ( You Kyung Han ),박홍련 ( Hong Lyun Park ),왕표 ( Biao Wang ),임희창 ( Hee 大韓遠隔探査學會 2013 大韓遠隔探査學會誌 Vol.29 No.2
The construction of hyperspectral test-bed dataset is essential for the effective performance of hyperspectral image for various applications. In this study, we analyzed the technical points for generating of optimal hyperspectral test-bed site for hyperspectral sensors and the efficiency of hyperspectral test-bed site. In this regard regions we analyzed existing construction techniques for generating test-bed site in domestic and foreign, and designed the test-bed site to acquire images from the airborne hyperspectral sensor. To produce a reference data from the image of constructed test-bed site, this study applied vicarious correction as a pre-processing and analyzed its efficiency. The result presented that it was ideal to use tarp for the vicarious correction, but it is possible to use the materials with constant spectral reflectance or with relatively low variance of spectral reflectance. The test-bed data taken in this study can be employed as the reference of domestic and foreign studies for hyperspectral image processing. 분광 영상의 효과적인 테스트베드 구축은 초분광 영상의 다양한 활용을 위하여 선행되어야 한다. 본 연구에서는 다양한 연구 분야에 적용할 수 있는 테스트베드의 구축 방법 및 효용성에 대한 기초 연구를 수행하였다. 이를 위하여, 기존의 국내 · 외 테스트베드 생성 방법을 분석하고, 이를 바탕으로 하여 항공기 기반 초분광 센서의 촬영을 위한 테스트베드를 설계하였다. 구축된 테스트베드를 촬영한 영상에서 기준자료를 생성시키기 위하여, 본 연구에서는 대리보정에 의한 전처리 기법을 적용하고, 이에 대한 효용성을 분석하였다. 실험결과, 대리보정은 타프를 이용하는 것이 가장 이상적이지만, 상황에 따라서 분광반사율이 일정하거나, 변화폭이 상대적으로 적은 물질을 이용하는 것이 가능하다는 것을 확인하였다. 본 연구에서 촬영한 테스트베드 자료는 국내 · 외의 초분광 영상 처리 연구에 참조자료로 사용될 수 있을 것으로 사료된다.
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