scholarly journals Assessment of the Complex Impact of Negative Factors, Primarily Radionuclides on Soils of Urban Agglomerations Affecting the Provision of Their Basic Functions and Ecosystem Services

2021 ◽  
Vol 4 (50) ◽  
pp. 48-58
Author(s):  
V. G. Plyushchikov ◽  
◽  
V. P. Avdotyin ◽  
N. I. Khairova ◽  
V. N. Grichin ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Urban Agglomerations ◽  
Basic Functions ◽  
Negative Factors

scholarly journals MONITORING CHANGES OF ECOSYSTEM SERVICES SUPPLY AND DEMAND PATTERN IN CENTRAL AND SOUTHERN LIAONING URBAN AGGLOMERATIONS, CHINA USING LANDSAT IMAGES

2018 ◽  
Vol XLII-3 ◽  
pp. 765-770
Author(s):  
B. Li ◽  
F. Huang ◽  
S. Chang ◽  
H. Qi ◽  
H. Zhai
Keyword(s):  
Ecosystem Services ◽  
Population Density ◽  
Foreign Investment ◽  
Driving Forces ◽  
Supply And Demand ◽  
Reference Value ◽  
Landsat Images ◽  
Urban Agglomerations ◽  
Spatio Temporal

Indentifying the spatio-temporal patterns of ecosystem services supply and demand and the driving forces is of great significance to the regional ecological security and sustainable socio-economic development. Due to long term and high-intensity development, the ecological environment in central and southern Liaoning urban agglomerations has been greatly destroyed thereafter has restricted sustainable development in this region. Based on Landsat ETM and OLI images, land use of this urban agglomeration in 2005, 2010 and 2015 was extracted. The integrative index of multiple-ecosystem services (IMES) was used to quantify the supply (IMESs), demand (IMESd) and balance (IMESb) of multiple-ecosystem services, The spatial patterns of ecosystem services and its dynamics for the period of 2005–2015 were revealed. The multiple regression and stepwise regression analysis were used to explore relationships between ecosystem services and socioeconomic factors. The results showed that the IMESs of the region increased by 2.93 %, whereas IMESd dropped 38 %. The undersupplied area was reduced to 2. The IMESs and IMESb were mainly negatively correlated with gross domestic product (GDP), population density, foreign investment and industrial output, while GDP per capita and the number of teachers had significant positive impacts on ecosystem services supply. The positive correlation between IMESd and GDP, population density and foreign investment were found. The ecosystem services models were established. Supply and balance of multiple-ecosystem services were positively correlated with population density, but the demand was the opposite. The results can provide some reference value for the coordinately economic and ecological development in the study area.

Changes in ecological networks and eco-environmental effects on urban ecosystem in China’s three typical urban agglomerations

2020 ◽  
Author(s):  
Ying Fang ◽  
Jing Wang ◽  
Jingjing Liu ◽  
Zehui Li
Keyword(s):  
Ecosystem Services ◽  
Human Activities ◽  
Carbon Stock ◽  
Quality Index ◽  
Urban Ecosystem ◽  
Ecological Networks ◽  
Ecological Network ◽  
Rapid Urbanization ◽  
Urban Agglomerations ◽  
Ecosystem Carbon

<p>Rapid urbanization caused a massive loss of natural habitats and seriously changed urban natural ecosystems. Ecological network, a spatial concept of ecosystems, maps the most valuable areas that provide multiple ecological goods and services for human demands. Ecological network has long been adopted worldwide for improving urban ecological environment under the scenarios of rapid urbanization. However, Little researches focused on changes in ecological networks and their effects on urban ecosystem. It is important to investigate the trends in ecological network changes, clear its relationship with human activities and policies for guiding sustainable economic and social development. The study aimed to analyze the relationship between the changes in ecological networks and human activities, regional policies as well as environmental changes, and to establish new ecological networks that meet the human demands of ecosystem services, in China’s three typical urban agglomerations, including Beijing-Tianjin-Hebei (BTH), Yangtze River Delta (YRD), and Pearl River Delta (PRD) from 2000 to 2015.This study used the variation of habitat quality index, ecosystem carbon stock, PM<sub>2.5</sub> and supply-demand of ecosystem services to measure the eco-environmental effects of ecological network changes under complex physical and socio-economic circumstances. Meanwhile, it established the new ecological networks based on the human-being demand of ecosystem services calculated by real-time population distribution, accessibility, and land development index, trying to optimize the land spatial patterns and ecosystem management in urban agglomerations. The results showed that a lot of areas of ecological networks had vanished into dryland, urban land and other developed land from 2000 to 2015, resulting from urban expansion, industrial development and regional land policies. The degradation in ecological networks caused a significant increase of PM<sub>2.5</sub> and decrease of habitat quality index and ecosystem carbon stock. And the spatial imbalance in the supply-demand of ecosystem services was shrinking to varying degrees, due to different regional ecological protection policies. There were regional spatial differences in the establishment of new ecological networks. However, the closer to central cities of each agglomerations, the human demands of ecosystem services and the need of strengthening the preservation ecosystems were more critical. This study contributes to the identifying the role of human activities on ecological processes and provides a scientific reference for the use of ecological network as the basis of the regional development plans. It is necessary to relieve the dilemma between the urban growth and ecosystem protection.</p>

scholarly journals Assessing Ecosystem Services Supply-Demand (Mis)Matches for Differential City Management in the Yangtze River Delta Urban Agglomeration

2021 ◽  
Vol 18 (15) ◽  
pp. 8130
Author(s):  
Wenbo Cai ◽  
Wei Jiang ◽  
Hongyu Du ◽  
Ruishan Chen ◽  
Yongli Cai
Keyword(s):  
Ecosystem Services ◽  
Yangtze River ◽  
Yangtze River Delta ◽  
River Delta ◽  
Urban Agglomeration ◽  
City Management ◽  
The Yangtze River ◽  
Social Demand ◽  
Urban Agglomerations ◽  
The Yangtze River Delta

With the global increase in population and urban expansion, the simultaneous rise of social demand and degradation of ecosystems is omnipresent, especially in the urban agglomerations of China. In order to manage environmental problems and match ecosystem supply and social demand, these urban agglomerations promoted regional socio-ecological integration but ignored differential city management during the process of integration. Therefore, it is necessary to design a general framework linking ecosystem supply and social demand to differential city management. In addition, in previous studies, ecosystem services supply–demand amount (mis)match assessment was emphasized, but ecosystem services supply–demand type (mis)match assessment was ignored, which may lead to biased decisions. To deal with these problems, this study presented a general ecosystem services framework with six core steps for differential city management and developed a double-indices (amount and type) method to identify ecosystem services supply–demand (mis)matches in an urban agglomeration. This framework and the double-indices method were applied in the case study of the Yangtze River Delta Urban Agglomeration. Ecosystem supply–demand amount and type (mis)match levels and spatial pattern of twenty-six cities were identified. Twenty-six cities in the YRDUA were classified into five kinds of cities with different levels of ES supply–demand (mis)matches for RS, three kinds of cities for PS, and four kinds of cities for CS. Differential city management strategies were designed. Despite its limitations, this study can be a reference to giving insights into ES supply–demand (mis)match assessment and management.

Spatial interaction between urbanization and ecosystem services in Chinese urban agglomerations

2021 ◽  
Vol 109 ◽  
pp. 105587
Author(s):  
Xiao Ouyang ◽  
Lisha Tang ◽  
Xiao Wei ◽  
Yonghui Li
Keyword(s):  
Ecosystem Services ◽  
Spatial Interaction ◽  
Urban Agglomerations

scholarly journals Ecosystem Services and Their Driving Forces in the Middle Reaches of the Yangtze River Urban Agglomerations, China

2020 ◽  
Vol 17 (10) ◽  
pp. 3717
Author(s):  
Wanxu Chen ◽  
Guangqing Chi ◽  
Jiangfeng Li
Keyword(s):  
Ecosystem Services ◽  
Yangtze River ◽  
Driving Forces ◽  
Spatial Regression ◽  
Spillover Effect ◽  
Spillover Effects ◽  
The Yangtze River ◽  
Road Density ◽  
Urban Agglomerations ◽  
The Impact

The impact of human activities on ecosystems can be measured by ecosystem services. The study of ecosystem services is an essential part of coupled human and natural systems. However, there is limited understanding about the driving forces of ecosystem services, especially from a spatial perspective. This study attempts to fill the gap by examining the driving forces of ecosystem services with an integrated spatial approach. The results indicate that more than US$430 billion of ecosystem services value (ESV) is produced annually in the Middle Reaches of the Yangtze River Urban Agglomerations (MRYRUA), with forestland providing the largest proportion of total ESV (≥75%) and hydrological regulation function accounting for the largest proportion of total ESV (≥15%). The average ESV in the surrounding areas is obviously higher than those in the metropolitan areas, in the plains areas, and along major traffic routes. Spatial dependence and spatial spillover effects were observed in the ecosystem services in the MRYRUA. Spatial regression results indicate that road density, proportion of developed land, and river density are negatively associated with ecosystem services, while distance to a socioeconomic center, proportion of forestland land, elevation, and precipitation are positively associated with ecosystem services. The findings in this study suggest that these driving factors and the spillover effect should be taken into consideration in ecosystem protection and land-use policymaking in urban agglomerations.

scholarly journals An Analysis of Public Complaints to Evaluate Ecosystem Services

Land ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 62 ◽  
Author(s):  
Jae-hyuck Lee ◽  
HaeOk Choi
Keyword(s):  
Ecosystem Services ◽  
Air Quality ◽  
Quality Management ◽  
Water Quality Management ◽  
The Public ◽  
Service Support ◽  
Downtown Area ◽  
Negative Factors ◽  
The City ◽  
Ecosystem Benefits

Reducing the demands placed on ecosystems can maximize the benefits they provide. Therefore, this study examines public complaints about the environment to analyze the pressure placed on the ecosystem spatially and temporally. Environment-related public complaints filed in the city of Namyangju were examined. The city sources its water from the Han River and is poised to implement a payment system for ecosystem services. Many complaints were filed regarding noise and oscillation, dust scattering, wildlife, air quality management, and water quality management. The complaints indicated that the public were inconvenienced by the regulation of services and service-support: scattered dust affected the downtown area all year, while noise and oscillation, as well as problems with air quality, were prevalent mainly during the summer. Measures should be adopted to address the peculiarities of each issue. This study suggests that areas in which wild boars are active should be separated from areas of human activity and that pollutants need to be prevented from reaching the waterfront. Measures should be developed to address the negative factors and maximize ecosystem benefits. Analyzing public complaints about the environment can lead to the establishment of local plans to maximize ecosystem services.

scholarly journals Identifying the Impact of Landscape Pattern on Ecosystem Services in the Middle Reaches of the Yangtze River Urban Agglomerations, China

2020 ◽  
Vol 17 (14) ◽  
pp. 5063
Author(s):  
Luwen Liu ◽  
Xingrong Chen ◽  
Wanxu Chen ◽  
Xinyue Ye
Keyword(s):  
Ecosystem Services ◽  
Landscape Pattern ◽  
Yangtze River ◽  
Landscape Planning ◽  
Landscape Patterns ◽  
Cultivated Land ◽  
Landscape Pattern Metrics ◽  
Urban Agglomerations ◽  
Pattern Metrics ◽  
The Impact

Clarifying the impact mechanisms of landscape patterns on ecosystem services is highly important for effective ecosystem protection, policymaking, and landscape planning. However, previous literature lacks knowledge about the impact mechanisms of landscape patterns on ecosystem services from a spatial perspective. Thus, this study measured landscape patterns and the ecosystem services value (ESV) using a series of landscape pattern metrics and an improved benefit transfer method based on land-use data from 2015. It explores the impact mechanisms of the landscape pattern metrics on the ESV using the ordinary least-squares method and spatial regression models in the middle reaches of the Yangtze River Urban Agglomerations (MRYRUA), China. We found that forestland was the main landscape type in the MRYRUA, followed by cultivated land, and the fragmentation degree of cultivated land was significantly higher than that of forestland. The findings demonstrate that landscape pattern metrics had a significant impact on ecosystem services, but could vary greatly. Moreover, ecosystem services in the MRYRUA exhibited significant spatial spillover effects and cross-regional collaborative governance was an effective means of landscape planning. This paper acts as a scientific reference and effective guidance for landscape planning and regional ecosystem conservation in MRYRUA and other similarly fast-growing urban agglomerations.

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