Analysis on Aquatic Environment of an Artificial Lake and Control Measures to Its Pollution

[Objective] This study aimed to find out effective measures to solve land- scape water eutrophication. [Method] Based on an overview of the urban landscape water characteristics and pollution control situation, taking an example of the artificial lakes in a campus in Xi＇an, we comparatively analyzed the present pollution situation of Xiuyuan Lake and Mingyuan Lake, and provided controlling measures against eutrophication pollution, as well as restoration measures. [Result] All the indicators （TN, TP, Chl-a, NH3-N, CODMn） of the landscape water quality in both Xiuyuan Lake and Mingyuan Lake went severely beyond the Grade IV standards, presenting a state of heavy eutrophication. Nitrogen, phosphorus and other nutrient salts carried by atmospheric precipitation and its runoff, as well as domestic garbage generated by human activities were primary exogenous pollutants of the artificial lakes. And the release of sediment pollutants was endogenous substances causing deterioration of water quality. [Conclusion] This paper presents some measures to control the pollution of artificial lakes, and provides scientific references for the construction, operation and management of artificial lakes, as well as maintenance of aquatic environment.

Gradient Analysis of Urbanization Pattern Based on Class-level Landscape Metrics for Shanghai Region

The spatial pattern of urbanization in the Shanghai metropolitan area is quantified with GIS-based land use data set and gradient analysis of landscape metrics. A number of landscape metrics were computed along a 64 Ion long and 6 km wide west-east transect and another 66 km long and 6 km wide south-north transect. The results of transect analysis with class-level metrics showed that the spatial pattern of urbanization could be reliably quantified using landscape metrics with a gradient analysis approach, and the location of the urbanization center could be identified precisely and consistently with multiple indices of the landscape metrics used in this study. Different land use types exhibited distinctive, but not necessarily unique, spatial signatures that were dependent on specific landscape metrics. These results seemed to characterize the urban core of the Shanghai metropolitan area rather accurately and precisely.. Agriculture patches were abundant and less fragmented; the urban land use types were extensive, having many small patches and highly fragmented.

Construction of Cultural Landscape System for Ancient Yiyang City from the Perspective of “Mountain, Water and City”

As the revitalization of city culture and the city cultural confidence has been increasingly valued, the ancients' perception and interpretation of mountains, rivers and cultural landscapes, as well as their wisdom in the construction of traditional cities deserve more attention and further exploration. Taking ancient Yiyang City for example, this paper on the basis of local chronicles and literature analyzed the construction history of the city, famous mountains and rivers, and top eight views, and attempted to interpret the construction system of "mountain, river and city" landscape of traditional Chinese cities, in order to provide historical basis and cultural background for revitalizing local cultures and shaping urban landscape patterns, and offer spatial strategies for the city protection and renewal.

A Review of Research on Sponge Cities

Rapid urbanization has led to an increase o f urban artificial landscapes and the transformation of die earths surface, which has caused the dty to lose its functions of flood control and water purificatioiL There are frequent urban flooding and waterlogging, deterioration of water quality in rivets and lakes, and increasing water and environmental problems. In response to these situations, the state proposed the construction of a sponge dty. In this paper, the background and rcsearch significance of the sponge city were expounded, the domestic and foreign related reseatch was summarized, and further thinking about the sponge dty in Chim was put forward, in order to clarify the research context of the sponge dty and provide the basis for tiie later research.

The Explore of Landscape Planning and Design of Urban Complex Based on the Patch-Corridor-MatrixModel

As intensive urban organization form, urban complex emerged with the fast urbanization of our country. Based on the Patch-Corridor-Matrix model, the author analyzed urban complex landscape structure from the macro, meso and micro level, and also analyzed the relationship between urban complex and urban systems, the interact between functional patches, the landscape process and requirement of people from the three levels, proposed the main points of the planning and design of the environment landscape of urban complex, expect the study above can benefit urban complex＇s practice projects.

Orhan Pamuk＇s Istanbul

The paper is based on the autobiographic-essayistic book Istanbul： Memories of a City written by Orhan Pamuk. lstanbul as a typical old capital shapes the lives of its citizens by its spirit, culture, and imperial past. On the other hand, it is a city that lives with specific sentiments--the sense of defeat and loss, melancholy and pain because of the lost power and glory. The author analyzes Pamuk＇s vision of his native city created on the basis of the real scenes and imaginary, the truly lived experiences and fiction. The paper is also concentrated on the deeds of the Turkish and European writers that had made a great contribution in Pamuk＇s synthesis of the East and the West, the past and the present and authentic permeation of cultures he has achieved writing about Istanbul.

To Withstand Loneliness in the Process of Urbanization——Research on the Construction and Planning of Metropolitan Suburban Rural Tourism Scenic Areas

Abstract The conflicts between rurality and urbanization,tradition and modernity,industry and environmental resource in the rural tourism have become major difficulties of its sustainable development in China.This paper analyzed the characteristics and difficult situations of metropolitan suburban rural tourism,put forward four kinds of region-city functions in the development of metropolitan suburban rural tourism,and researched on the construction of rural tourism scenic areas in metropolis suburb—"to Withstand Loneliness in the Process of Urbanization"—as the following aspects:the space organization mode,localization,social organization and management,the product organization and spatial planning modes and contents.

Construction and Optimization on Environmental Protection under the Background of Species Diversity and Green Ecology

In this paper, we conduct research on the construction and optimization on environmental protection under the background of species diversity and green ecology. In scope, the environmental policies include pollution control policies, ecological conservation policies and basic international environmental policies which should be considered based on the following aspects. （1） The urban environment issue possibly emerges in the urban inside and outside interactions, thus the government to the ecological environment must pay attention to the sector coordination, and even must global footprint from the national and criterion consideration. （2） Environmental protection is not only adapted to the needs of the environment through the transformation, but stressed that ecological construction, that is, to promote the coordination between mankind and the natural environment. Development and protection are regional which should be global and intertwined.

Revitalization of Historic Conservation Areas:The Landscape Design for Yongqing Fang Phase III in Guangzhou,China

1 Introduction The regeneration and revitalization of historic conservation areas is not only of significant importance for the transformation of urban spaces but also has become a widely discussed topic in recent urban renewal efforts.The Yongqing Fang,sitting in the Enning Road 1 Introduction The regeneration and revitalization of historic conservation areas is not only of significant importance for the transformation of urban spaces but also has become a widely discussed topic in recent urban renewal efforts.The Yongqing Fang,sitting in the Enning Road Historic Conservation Area in Guangzhou,China is renowned as“the most beautiful old-style street in Guangzhou.”Through its staged redevelopment since 2016,Yongqing Fang has turned into an attractive destination with distinctive Lingnan(Cantonese)characteristics,providing places for specialty dining,creative industries,cultural performances,recreational and cultural experiences,etc.This renewal project has also stimulated the coordinated development of the surrounding areas.

清代新疆桐华书院考述

桐华书院是乾隆三十四年在景化城(呼图壁)景山书院的基础上扩建而成,由乌鲁木齐官员永宁命名,是温福任内创立的四所义学之一。桐华书院为促进新疆一统后文化教育事业的发展发挥了重要作用。

High-resolution urban land-cover mapping and landscape analysis of the 42 major cities in China using ZY-3 satellite images

Detailed and precise urban land-cover maps are crucial for urban-related studies. However, there are limited ways of mapping high-resolution urban land cover over large areas. In this paper, we propose an operational framework to map urban land cover on the basis of Ziyuan-3 satellite images. Based on this framework, we produced the first high-resolution(2 m) urban land-cover map(Hi-ULCM) covering the 42 major cities of China. The overall accuracy of the Hi-ULCM dataset is 88.55%, of which 14 cities have an overall accuracy of over 90%. Most of the producer’s accuracies and user’s accuracies of the land-cover classes exceed 85%. We further conducted a landscape pattern analysis in the 42 cities based on Hi-ULCM. In terms of the comparison between the 42 cities in China, we found that the difference in the land-cover composition of urban areas is related to the climatic characteristics and urbanization levels, e.g., cities with warm climates generally have higher proportions of green spaces. It is also interesting to find that cities with higher urbanization levels are more habitable, in general. From the landscape viewpoint, the geometric complexity of the landscape increases with the urbanization level.Compared with the existing medium-resolution land-cover/use datasets(at a 30-m resolution), HiULCM represents a significant advance in accurately depicting the detailed land-cover footprint within the urban areas of China, and will be of great use for studies of urban ecosystems.

Layout and Systematic Structure of Ecological Landscaping Forest in Shenzhen

As a dominant elernent to urban forest of Shenzhen, the ecological landscaping forest are establishedwith the area of 54 072.5 hectasas （ha） in the 25 years, among which the soil and water conservation forest accounts for 40 879.8 ha, the shelter forest along coastal side and road is 7 245,3 ha and the forest of special utilities is 5 947.4 ha. This project lasts about 30 years, About 25.78% of the task is finished and the budget for it is about 0.213 billion RMB yuan（Renrninbi yuan or yuan） to beautify the human living environment in small ,scale before 2005, The other 74.22% is finisbed between 2006 and 2011. for which the budget is about 0.4 billion yuan in order to improve the ecological environment of Shenzben in large scale. Then the structure and function of the forest system is advanced as a long object befure 2030.

The Evolution Pattern and Simulation of Land Use in the Beijing Municipal Administrative Center(Tongzhou District)

Beijing Municipal Administrative Center(Beijing MC)in Tongzhou District has inherited the non-capital core functions of Beijing’s central urban area,and its rapid construction and development urgently require a scientific understanding of the pattern of land use evolution in the region.This paper analyzes the pattern of land use evolution in Tongzhou District over the past 40 years,from 1980 to 2020.According to the historical evolutionary characteristics of land use and urban development planning goals,combined with the driving factors of cultural tourism development,the Future Land-use Simulation(FLUS)model is used to simulate the spatial distribution of land use in Beijing MC(Tongzhou District)in 2035 under three scenarios of urbanization acceleration,deceleration and sustainable development.The results show three major trends.(1)Beijing MC(Tongzhou District)is dominated by urban development and construction.During the high-speed urbanization stage from 1980 to 2010,the urban expansion pattern of“along the Sixth Ring Road and along the Grand Canal”was formed.During the low-speed urbanization stage from 2010 to 2020,the land distribution was stable,and Tongzhou District formed a pattern of urban-rural differentiation and land intensification from northwest to southeast.As a typical area of Tongzhou District’s urbanization,Beijing MC has the same characteristics of the temporal and spatial evolution as Tongzhou as a whole.(2)By 2035,there are significant differences in land use among the three scenarios with respect to the magnitude of change and spatial distribution.The area and distribution of ecological land under the urban sustainable development scenario are optimal,which is conducive to the realization of sustainable urban development.In analyzing the degree of conformity with the three Beijing MC zoning plans,the prediction simulation under the sustainable development scenario is highly consistent with the land use of the“Beijing Municipal Administrative Center Regulatory Detailed Planning(Block Level)(2016–2035)”(hereinafter referred to as“Planning”)issued by the municipal government.However,there are certain deviations between the simulation predictions in the cultural tourism function area and the livable living scenery area and the corresponding“Planning”expectations.During the urban construction process,the internal ecological land area still needs to be increased.(3)Tongzhou District may lack a close connection between the urban and rural areas in the southeast.Potential risks such as the imbalance in the development of northern and southern townships require further attention in the development process.The prediction and simulation results of the model can provide certain data and methodological support for the construction of a harmonious and livable city in Beijing MC(Tongzhou District).