Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidi...Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidity, wind speed, air anion ratio, and inhalabal particle concentration, which were strongly related with pleasing feeling of human body. The results show that the average air temperature in both forest park and landscape forest is much closer to the pleasing feeling of human body temperature than that of the rest two greenbelts, where it is 1.782 ℃ and 0.837℃ in forest park as well as 3.084 ℃ and 2.140 ℃ in landscape forest less than that of roadside and resident-area greenbelts, respectively. In terms of mean air humidity, forest park and landscape forest are 3.034% and 7.563% higher than that of roadside greenbelt, and 1.205% and 5.734% higher than that of resident-area greenbelt, respectively, implying a sound humidity feeling of human comfort in the former two types. The air cleanness holds a descending rank as forest park, landscape forest, resident-area greenbelt, and roadside greenbelt, whereas the rank in inhalable particle concentration is completely reverse. In general, landscape forest and forest park that mainly consist of trees have a comparatively higher feeling of human comfort whereas roadside and resident-area greenbelts fluctuate irregularly to some extent for the measures studied. The four greenbelt types investigated could be summarized in human comfort as the following descending rank, forest park, landscape forest, resident-area greenbelt, and roadside greenbelt.展开更多
Through analyzing the current urban greenbelt construction and relative issues during the development in northeastern parts in Harbin of China, some feasible solutions were proposed. In order to improve the urban ecol...Through analyzing the current urban greenbelt construction and relative issues during the development in northeastern parts in Harbin of China, some feasible solutions were proposed. In order to improve the urban ecological environment and upgrading the constructive level of the urban greenbelt along with the sustainable development in the future, the paper provided some solutions in details展开更多
Road greenbelt design is one of the important parts in urban road system.Zhangye City's road greenbelt design,relying on the general planning concept,namely,'water leads to green space,green space blends the c...Road greenbelt design is one of the important parts in urban road system.Zhangye City's road greenbelt design,relying on the general planning concept,namely,'water leads to green space,green space blends the city',emphasizes the harmonious relation between the greenbelt and ecological environment.The concept is adopted to guide the green design of the major roads,subsidiary roads,and trunk roads.It will offer some references for the similar engineering design.展开更多
文摘Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidity, wind speed, air anion ratio, and inhalabal particle concentration, which were strongly related with pleasing feeling of human body. The results show that the average air temperature in both forest park and landscape forest is much closer to the pleasing feeling of human body temperature than that of the rest two greenbelts, where it is 1.782 ℃ and 0.837℃ in forest park as well as 3.084 ℃ and 2.140 ℃ in landscape forest less than that of roadside and resident-area greenbelts, respectively. In terms of mean air humidity, forest park and landscape forest are 3.034% and 7.563% higher than that of roadside greenbelt, and 1.205% and 5.734% higher than that of resident-area greenbelt, respectively, implying a sound humidity feeling of human comfort in the former two types. The air cleanness holds a descending rank as forest park, landscape forest, resident-area greenbelt, and roadside greenbelt, whereas the rank in inhalable particle concentration is completely reverse. In general, landscape forest and forest park that mainly consist of trees have a comparatively higher feeling of human comfort whereas roadside and resident-area greenbelts fluctuate irregularly to some extent for the measures studied. The four greenbelt types investigated could be summarized in human comfort as the following descending rank, forest park, landscape forest, resident-area greenbelt, and roadside greenbelt.
基金Supported by Program for Doctor Funds of Northeast Agricultural University (2009RC40)
文摘Through analyzing the current urban greenbelt construction and relative issues during the development in northeastern parts in Harbin of China, some feasible solutions were proposed. In order to improve the urban ecological environment and upgrading the constructive level of the urban greenbelt along with the sustainable development in the future, the paper provided some solutions in details
文摘Road greenbelt design is one of the important parts in urban road system.Zhangye City's road greenbelt design,relying on the general planning concept,namely,'water leads to green space,green space blends the city',emphasizes the harmonious relation between the greenbelt and ecological environment.The concept is adopted to guide the green design of the major roads,subsidiary roads,and trunk roads.It will offer some references for the similar engineering design.
文摘【目的】城市绿地土壤的质量直接关系到城市生态效益及各项功能的发挥。分析中外城市绿地土壤研究文献,梳理与总结中国城市绿地土壤研究重点及未来发展方向。【方法】检索中国知网(ChinaNationalKnowledge Infrastructure)和科学网(Web of Science)核心数据库中2012—2021年关于城市绿地土壤的研究文献,利用CiteSpace从发文量、国家及机构分布、代表人物及热点内容、研究重点内容、研究发展趋势及前沿等方面,阐明该研究领域的重点内容及动态发展。【结果】近10年城市绿地土壤研究领域共发表中英文文献1 107篇,其中中国发文总量最多,且主要集中在中国科学院。国内研究内容主要为土壤质量,研究热点从土壤肥力质量到土壤污染,再到土壤改良修复。国外研究内容主要是城市绿地土壤的生态系统服务功能,研究热点从解决城市生态环境问题到提出绿地维护管理策略,再到提升城市生态环境效益。研究前沿集中在重金属污染和城市绿地生态系统。【结论】城市绿地土壤中英文文献的研究重点不同,中文文献更关注城市绿地土壤质量,这与国家政策、城市发展、生态环境保护等有关。而英文更关注城市绿地生态系统,这可能与气候变化、绿色基础设施建设、生态环境效益等有关。图3表5参58。
