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991.
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993.
A watershed is a structural and functional unit of a landscape consisting of various environments and sustaining a certain biodiversity. Conservation of watershed environments is important at both the regional and the national level. As a basis for conservation management, sufficient information about landscape structure should be provided for the whole terrestrial area of a watershed. In the present study, we reconstructed the former landscape structure and elucidated the changes in land use patterns during a period of about 80 years after 1900 (late Meiji era) in the Nagara River Basin, central Japan. We used three sets of maps for the analyses: old and modern topographical maps made in 1909, 1971 and 1992 by the Geographical Agency. Each map (ca. 18 km×22 km) was divided into 400 (20×20) grid cells, according to latitude and longitude. The dimension of each grid cell was about 1 km2 (0.9 km×1.1 km). In each grid cell, all land-cover types were inventoried and the most dominant one was determined to be the dominant land-cover. The relative dominance (RD), frequency (FQ) and similarity index (SI) were calculated for analyses. The relative dominance of broad-leaved forest decreased, whereas those of conifer forest and residential areas increased throughout the whole study area during the 80-year period. However, regional differences in landscape change were found. In the upriver area, the relative dominance of broad-leaved forest decreased, while that of conifer forest increased. In the mid-river area, the relative dominance of conifer forest decreased, while that of broad-leaved forest increased. In the present study, we revealed the basic regional differences in landscape structure and their changes in the Nagara River Basin. Land use history with reference to socio-economics should be considered as an important factor affecting the present landscape structure. 相似文献
994.
分析和阐述了广州新石器遗址公园规划设计的背景、基本理念和思路,着重介绍了入口景区、新石器村落景区、新石器狩猎和农业景区、新石器文化等景区以及与此相应的自然生态景观,并简要介绍了该设计所产生的社会效应. 相似文献
995.
在总结2003年第40届IFLA国际风景园林大学生设计竞赛二等奖作品创作过程之心得的基础上,重点介绍该竞赛作品中体现出的个人对圆明园遗址保护问题之思考,以求引起遗址管理部门和所有关心圆明园遗址保护问题之民众和同仁的重视,使这一人类共有的历史园林文化遗产得以永存。 相似文献
996.
997.
当前我国城市公园经营问题的思考 总被引:5,自引:0,他引:5
针对城市公园改变经营方式,如推倒围墙、实行"开放式"经营等引发的系列问题,调查我国城市公园经营现状,并分析其优势和弊端,通过研究我国城市公园在社会主义市场经济体制下,由政府包办走向开放式经营的经营模式,提出相应的经营对策. 相似文献
998.
999.
Using GIS and landscape metrics in the hedonic price modeling of the amenity value of urban green space: A case study in Jinan City, China 总被引:12,自引:0,他引:12
Urban green spaces have important amenity values that include provision of leisure opportunities and aesthetic enjoyment. However, most of these values lack a market price. Consequently, they are usually ignored or underestimated by urban planning policy-makers, with the result that remnant urban green spaces are being gradually encroached upon by urban sprawl. As a result, quantitative information regarding the implicit, non-market price benefits from urban green space is urgently required. Properties bought and sold on the market are compound commodities that embody amenity values and people are willing to pay to live in the proximity of local amenity environment. Thus hedonic models, which use such properties as proxies, can often be employed to quantify environmental amenities. In China, residential housing reform (in place since 1998) has terminated the traditional residential welfare system, and made it possible to quantify the monetary value of green space amenities based on hedonic pricing models. This study was conducted in Jinan City, and will help address the previous absence of the application of hedonic price models to the valuation of urban green space amenities in mainland China. GIS and landscape metrics were used in determining hedonic price model variables. As expected, the results proved that the hedonic pricing model performed well using this approach, and accordingly it was further improved. Results also confirmed the positive amenity impact of proximate urban green spaces on house prices, and highlighted the preferences of homeowners in Jinan City. Green space amenity variables that were statistically significant at the 5% level included the size–distance index of scenery forest, accessibility to park and plaza green space types, and the percentage of urban green space. In addition, land-use patch richness, the location sector and the education environment also proved to be highly significant variables. The results of the study should provide insights to policy-makers involved in urban planning. 相似文献
1000.
城市居民行为模式与城市绿地结构 总被引:3,自引:0,他引:3
随着社会经济的发展和生活质量的不断提高,城市居民的闲暇时间逐渐增多,人们的休闲、健身、交往、出行等游憩行为模式更加多元化,对城市园林绿地提出更高、更深层次的需求。从分析城市居民的生活行为模式与居住绿地、综合公园、专类公园、带状公园及街旁绿地等各类城市园林绿地之间的密切关系入手,探讨了如何构建与城市居民的行为模式相适应的人性化的城市绿地结构。 相似文献