In densely populated and heavily polluted cities, park is a recognized as "lung of the city."
Establish a Sustainable Ecological City
In the part of ecological environment, it focuses on urban greening, urban environment and environmental governance. The main purpose is to evaluate the natural ecological resources and the living environment of the urban environment. With the protection and optimization of biological habitats, the stability and diversity of urban ecology can be effectively enhanced. As the main body of the eco-city is the government department, the promotion and implementation of the concept of eco-city should be assessed by the government budget and the implementation of the policy.
A. Green coverage rate
The city needs enough green space to maintain the integrity of the ecosystem in the city. It is an important part of the urban life-support system. Using green coverage as an indicator to detect urban green space, green roofs, green garden or forest Area and so on. The higher the green coverage rate, the stronger the ecological adjustment capacity of the city. The higher the integrity of the ecological support system is, and the more it will contribute to the realization of the sustainable eco-city vision.
In densely populated and heavily polluted cities, park is a recognized as "lung of the city."
B. Average public green area per person
Public green area includes parks, children's parks, green spaces and other places. Park has the function of flood control and storage. Due to the large number of trees and plants inside, the park can reduce noise, filter dust, purify air, help reduce carbon dioxide, regulate the urban climate and slow down the heat island effect of cement jungle. Therefore, the park is also known as the "lung of the city." In addition, parks and green spaces provide more opportunities for outdoor leisure and recreation for urban residents. In the event of a disaster, they can be used as disaster prevention. Therefore, each person enjoys more green area of the park, which means that the richer the urban green resources are.
C. Natural area ratio
Natural areas include protected areas, scenic areas and other natural or environmentally sensitive areas. Natural areas are the main areas for ecological habitat and reproduction, and can also be regarded as the source of urban biological species. The higher the natural area ratio, the more natural research and the higher natural and subsistence capacity. In addition, the more natural areas, the higher the urban pervious area. This will reduce the frequency of urban flooding.
Retaining wetlands in urban areas can increase biodiversity and provide bird habitats.
D. Wetland area ratio
Wetland area has the function of regulating water source, flood control and water purification. Because of its high biomass and its high diversity of species, it is also known as the "Genebank of Living." If the city has a large area of wetlands, it will be more sustainable.
Rivers combine ecological, recreational, landscape, and flood prevention functions in cities
E. Natural length of the river ratio
The riverbank is the junction of the waterway and the land, and there is a large amount of biomass in the intersection of this different material. In addition, rivers can also be considered corridors in urban ecosystems. Natural river is more conducive to the surrounding habitat, migration and circulation. Therefore, the longer the natural river, the more conducive to the conservation of urban natural ecological resources and the operation of the ecosystem.
The higher degree of urbanization, various pollution ensues.
A. Degree of urbanization
The degree of urbanization is the proportion of urban development land to total urban area, including residential area, commercial area, industrial area, administrative area, cultural and educational area, and public facilities. The degree of urbanization is too high, the urban natural areas, biological habitat will be reduced, the impervious area is also relatively increased. Such destruction of the environment is not conducive to the sustainable development of the city.
B. Trash per person per day
The increase in the amount of rubbish usually comes from the consumer behavior of the public. In addition to requiring more land to dispose of the rubbish, the burden on the urban environment is exacerbated. Excess consumption also represents a waste of energy and resources.
C. The length of over moderately polluted river ratio
The length of serious polluted rivers in urban river can reflect the general situation of urban living environment and ecological environment quality as well as the effectiveness of river water quality management. The main reason for water pollution in Taiwan's rivers is that they do not have good waste water treatment measures, which results in improper discharge of domestic, and industrial and aquaculture wastewater or improper land use across the river banks and water conservation areas result in deterioration of river water quality and affect the living space of aquatic animals and plants. If the length of the moderately polluted river is longer, it will hinder the development of urban eco-city.
D. Air pollution
Air pollution is based on the PSI value, which contains the aerosols, sulfur dioxide, nitrogen dioxide, carbon monoxide and ozone concentrations in the air. According to the study by the United States Environmental Protection Agency, if the PSI value is more than 100 days, it will endanger human health and also deteriorate the quality of living environment, resulting in the load on the urban ecological environment and not conducive to the development of eco-cities.
E. Noise pollution
The higher the noise pollution index value, the poorer the quality of urban living environment, the greater the burden of ecological environment purification capacity.
Sewage sewer is the most important part of eco-city.
A. Sewage treatment rate
Including public sewage sewer takeover ratio, special sewage sewer takeover rate, as well as the proportion of building sewage treatment set in three parts. Sewer installation more widely, you can avoid the improper discharge of waste water and urban water pollution, reduce the burden on ecosystems to purify water quality. At the same time, the treated waste water can be used again to solve the shortage of urban water resources and reduce the construction of reservoirs. Therefore, the more common sewer setting, the higher the sewage treatment rate, the more positive for the development of urban ecological city.
B. The percentage of environmental protection expenditure budget on the total budget
The amount of expenditure on environmental protection shows how much the government attaches importance to conservation of urban eco-environment, including such investment activities as public protection and environmental protection, environmental remediation, recycling of waste, administrative measures and policy promotion.
C. Resource recovery rate
Resource recovery rate is the ratio of resource recovery and compost volume in the total garbage removal volume. The higher the rate of resource recovery, the less expensive the natural resource or the non-renewable resource in the product
Permeability of the pavement not only to achieve water retention, permeability effect, but also beautify the environment and reduce the heat island effect.
D. Urban permeate area ratio
Nowadays, the urban surface pavement is mostly impervious material, and the surface water is not easily infiltrated into the soil. When the rainfall is too large in an instant, the flooding is often caused by the lack of drainage. Therefore, the higher the urban permeate area, the slower the urban surface runoff. This helps to prevent and control the frequency and severity of urban floods.
Eco-method not only creates a more diverse biological habitat, but also becomes a good place for people to get close to nature.
E. The proportion of ecological engineering method on the total project
The main purpose of eco-engineering is to reduce the burden on the environment caused by the project. Its engineering materials and construction methods on the environment load is low. It takes the needs and safety of humankind into account at the same time and also takes the rights of other species to survive into account. It seeks to achieve a balance between engineering and ecological aspects. Therefore, the higher the frequency of using eco-method, the higher biomass the city has and the lower burden on urban environment.
Reference:
Xie Peishan (2005), Sustainable Urban Development: A Comparative Study on the Assessment Indicators System of Major Cities in Taiwan, Department of Landscape Architecture, Tokai University.
Images source:
Guandu Natural Park
http://gd-park.org.tw/about/23
World magazine
http://www.cw.com.tw/article/article.action?id=5067930
Classic magazine
http://www.rhythmsmonthly.com/?p=4696
Public TV
http://pnn.pts.org.tw/main
Rui Xing Industrial Co., Ltd.
http://www.ruei-hsing.com.tw/explain-show.php?recno=479
Low-carbon sustainable information network https://lcss.epa.gov.tw/LcssViewPage/Responsive/AreaDoc.aspx?CityID=1...
Taipei City Lands Bureau
http://epaper.land.gov.taipei
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