The recent research development of urban eco-landscape forest was reviewed from the perspectives of species selection,planning and design,scenic beauty evaluation,beauty induction of forest and effectiveness monitorin...The recent research development of urban eco-landscape forest was reviewed from the perspectives of species selection,planning and design,scenic beauty evaluation,beauty induction of forest and effectiveness monitoring,etc..Moreover,research status,problems as well as future trend of eco-landscape forest abroad were analyzed to provide technical supports for the healthy development of urban eco-landscape forest in China.展开更多
Taizhou is an economically-developed port city on the golden coastline of China, characterized by typical coastal and combined green cores, mountains and waters, and special plants. This paper analyzed natural conditi...Taizhou is an economically-developed port city on the golden coastline of China, characterized by typical coastal and combined green cores, mountains and waters, and special plants. This paper analyzed natural conditions and city features of Taizhou, assessed current construction of local urban forests, and proposed pertinent construction concepts in view of diversifi ed needs of urban development on forest construction. On the basis of the city development, principles of urban forest layout were put forward, and the overall structure of "one core, one belt, two rings, three corridors, four groups, fi ve windows, and multiple bases" was given for the construction of urban forest in coastal landscape cities, in addition, the effect and feasibility of the layout were analyzed.展开更多
The concept of urban forest was originated from the U.S. and Canada. Since Professor Eric Jorgensen first proposed the integrated conception of urban forest, numerous scholars in China and abroad have discussed it fro...The concept of urban forest was originated from the U.S. and Canada. Since Professor Eric Jorgensen first proposed the integrated conception of urban forest, numerous scholars in China and abroad have discussed it from various perspectives, and defined its connotation from the aspects of component, function and management. Through reviewing studies on the function and benefit, evaluation, structure, planning and management of urban forest, the authors proposed prospects of studies on this field, and orientations for further enhancing value system, establishing scientific evaluation system, further promoting landscape analysis, strengthening monitoring and management, applying new technologies and methods.展开更多
提出了一种基于闭合频繁模式的半随机森林数据流分类算法(Semi-Random Forest based on Closed Frequent Pattern,SRFCFP),以解决数据流中噪声和概念漂移问题。SRFCFP利用闭合频繁模式对数据流进行表示,去除冗余信息和噪声,突出数据特...提出了一种基于闭合频繁模式的半随机森林数据流分类算法(Semi-Random Forest based on Closed Frequent Pattern,SRFCFP),以解决数据流中噪声和概念漂移问题。SRFCFP利用闭合频繁模式对数据流进行表示,去除冗余信息和噪声,突出数据特征。采用半随机森林建立分类模型,并通过基于时间衰减的模式集更新机制适应数据流的无限性。为了检测概念漂移并及时适应,引入了一种模式集差异性度量方式,用于测量数据分布变化。实验结果表明,在MOA平台下使用真实和合成数据集,SRFCFP在平均精度上超越了相关对比算法,并能有效处理数据流中的概念漂移和噪声问题。展开更多
文摘The recent research development of urban eco-landscape forest was reviewed from the perspectives of species selection,planning and design,scenic beauty evaluation,beauty induction of forest and effectiveness monitoring,etc..Moreover,research status,problems as well as future trend of eco-landscape forest abroad were analyzed to provide technical supports for the healthy development of urban eco-landscape forest in China.
文摘Taizhou is an economically-developed port city on the golden coastline of China, characterized by typical coastal and combined green cores, mountains and waters, and special plants. This paper analyzed natural conditions and city features of Taizhou, assessed current construction of local urban forests, and proposed pertinent construction concepts in view of diversifi ed needs of urban development on forest construction. On the basis of the city development, principles of urban forest layout were put forward, and the overall structure of "one core, one belt, two rings, three corridors, four groups, fi ve windows, and multiple bases" was given for the construction of urban forest in coastal landscape cities, in addition, the effect and feasibility of the layout were analyzed.
基金Supported by S & T Projects of Wuhan Municipal Major Program and Construction (200616)~~
文摘The concept of urban forest was originated from the U.S. and Canada. Since Professor Eric Jorgensen first proposed the integrated conception of urban forest, numerous scholars in China and abroad have discussed it from various perspectives, and defined its connotation from the aspects of component, function and management. Through reviewing studies on the function and benefit, evaluation, structure, planning and management of urban forest, the authors proposed prospects of studies on this field, and orientations for further enhancing value system, establishing scientific evaluation system, further promoting landscape analysis, strengthening monitoring and management, applying new technologies and methods.
文摘提出了一种基于闭合频繁模式的半随机森林数据流分类算法(Semi-Random Forest based on Closed Frequent Pattern,SRFCFP),以解决数据流中噪声和概念漂移问题。SRFCFP利用闭合频繁模式对数据流进行表示,去除冗余信息和噪声,突出数据特征。采用半随机森林建立分类模型,并通过基于时间衰减的模式集更新机制适应数据流的无限性。为了检测概念漂移并及时适应,引入了一种模式集差异性度量方式,用于测量数据分布变化。实验结果表明,在MOA平台下使用真实和合成数据集,SRFCFP在平均精度上超越了相关对比算法,并能有效处理数据流中的概念漂移和噪声问题。
