Evaluating Future Habitat Quality Change Under Urban Development in Southern China with Different City Compaction Scenarios

2022 ◽  
Author(s):  
Bingyu Wang ◽  
Takashi Oguchi ◽  
Xun Liang
Keyword(s):  
Urban Development ◽  
Habitat Quality ◽  
Southern China ◽  
Quality Change ◽  
City Compaction

scholarly journals Spatiotemporal effects of urban sprawl on habitat quality in the Pearl River Delta from 1990 to 2018

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiansheng Wu ◽  
Xuechen Li ◽  
Yuhang Luo ◽  
Danni Zhang
Keyword(s):  
Economic Development ◽  
Habitat Quality ◽  
Urban Sprawl ◽  
Pearl River Delta ◽  
Pearl River ◽  
Quality Change ◽  
Ecological Civilization ◽  
The Pearl River Delta ◽  
Negative Effect ◽  
The Pearl River

AbstractSince the implementation of the Chinese economic reforms. The habitat quality of coastal has gradually deteriorated with economic development, but the concept of "ecological construction" has slowed the negative trend. For quantitative analysis of the correlation between the Pearl River Delta urban expansion and changes in habitat quality under the influence of the policy, we first analyzed the habitat quality change based on the InVEST model and then measured the impact of construction land expansion on the habitat quality through habitat quality change index (HQCI) and contribution index (CI) indicators. Finally, the correlation between urbanization level and habitat quality was evaluated using geographically weighted regression (GWR) and the Self-organizing feature mapping neural network (SOFM). The results indicated that: (1) during the study period from 2000 to 2020, habitat quality declined due to urban sprawl, indicating a deterioration of ecological structure and function, and the decrease was most significant from 2000 to 2010. (2) The urbanization index had a negative effect on the habitat quality, but the negative effect have improved after 2000, reflecting the positive effect of policies such as "ecological civilization construction" (3) The implementation degree of ecological civilization varies greatly among cities in the study area: Shenzhen, Dongguan, Foshan, and Zhongshan have the best level of green development. These results reflect the positive role of policies in the prevention of damage to habitat quality caused by economic development and provide a reference for the formulation of sustainable urban development policies with spatial differences.

Benthic habitat quality change as measured by macroinfauna community in a tidal flat on the west coast of Korea

2010 ◽  
Vol 66 (3) ◽  
pp. 307-317 ◽  
Author(s):  
Keun-Hyung Choi ◽  
Sung-Mi Lee ◽  
Sang-Min Lim ◽  
Mark Walton ◽  
Gyung-Soo Park
Keyword(s):  
Habitat Quality ◽  
West Coast ◽  
Tidal Flat ◽  
Benthic Habitat ◽  
Quality Change ◽  
The West ◽  
West Coast Of Korea

scholarly journals Using Vegetation Indices to Characterize Vegetation Cover Change in the Urban Areas of Southern China

2020 ◽  
Vol 12 (22) ◽  
pp. 9403
Author(s):  
Yu Zhang ◽  
Pengcheng Wang ◽  
Tianwei Wang ◽  
Jingwei Li ◽  
Zhaoxia Li ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Urban Planning ◽  
Urban Development ◽  
Vegetation Cover ◽  
Southern China ◽  
Vegetation Indices ◽  
Urban Core ◽  
Core Areas ◽  
Two Indices ◽  
Peripheral Areas

Vegetation is essential for the provision of ecosystem services. To ensure that ecosystem services are provided, urban planning must consider vegetation cover in both urban core areas and in peripheral areas. This study explored changes in vegetation cover in both urban core and peripheral areas (buffers of 5, 10 and 15 km from the urban core areas) and the relationships between these changes and urban development. To compare the differences in vegetation cover between the urban core and peripheral areas, we developed two vegetation indices, the vegetation influence strength index (VISI) and the vegetation restoration index (VRI), using normalized difference vegetation index datasets and nighttime stable light data from 50 cities in southern China. Using these two indices, we clustered the cities into four types based on their vegetation cover characteristics. The city types varied among the different regions of the study area and cities of the same type tended to occur together geographically. In addition, the two indices showed temporal changes during the study period: A downtrend from 1992 to 2000, an uptrend from 2000 to 2005, and stability from 2005 to 2013. Furthermore, in all cities, the range of the VISI was larger in the peripheral areas than in the urban core areas. However, the range of the VRI was smaller in the peripheral areas than in the urban core areas. As the distance to the urban core areas increased, the fluctuation range of both the VISI and VRI decreased, suggesting that there was less vegetation disturbance farther from the urban core areas. We also showed that changes in vegetation cover were related to differences in urbanization rates, gross domestic products, population densities, and stages of urban development among the cities. These results provide scientific support for urban planning and sustainable development in rapid urbanization areas.

Climate modulation of Niño3.4 SST-anomalies on air quality change in southern China: Application to seasonal forecast of haze pollution

2019 ◽  
Vol 225 ◽  
pp. 157-164 ◽  
Author(s):  
Xugeng Cheng ◽  
Richard Boiyo ◽  
Tianliang Zhao ◽  
Xiangde Xu ◽  
Sunling Gong ◽  
...  
Keyword(s):  
Air Quality ◽  
Southern China ◽  
Seasonal Forecast ◽  
Quality Change ◽  
Haze Pollution ◽  
Sst Anomalies

Land Requisitions and State–Village Power Restructuring in Southern China

2015 ◽  
Vol 224 ◽  
pp. 888-908 ◽  
Author(s):  
Siu Wai Wong
Keyword(s):  
Urban Development ◽  
Rapid Growth ◽  
Local Governance ◽  
Southern China ◽  
Local State ◽  
Land Conflicts ◽  
Social Unrest ◽  
Actual Impact ◽  
Depth Analysis ◽  
Underlying Causes

AbstractLand requisitions for urban development have led to a rapid growth of wealthy, autonomous villages in southern China. However, the underlying causes of this emerging phenomenon and its impact on local governance have been largely unexplored by the existing literature. Through an in-depth analysis of the contestations and negotiations between the local state and villagers when dealing with the various problems arising from land compensation, this study explains how and why land requisitions strengthened the collective power of villagers in defending their rightful interests. This bolstered power has in turn forced the local state constantly to adjust its tactics when addressing the needs of villagers in order to avoid widespread conflicts and potential social unrest. The findings provide new insights into the complexities of land conflicts and their actual impact on state–village power restructuring in southern China.

scholarly journals Spatiotemporal Variation and Influence Factors of Habitat Quality in Loess Hilly and Gully Area of Yellow River Basin: A Case Study of Liulin County, China

Land ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 127
Author(s):  
Xu Zhang ◽  
Chunjuan Lyu ◽  
Xiang Fan ◽  
Rutian Bi ◽  
Lu Xia ◽  
...  
Keyword(s):  
Land Use ◽  
River Basin ◽  
Habitat Quality ◽  
Yellow River ◽  
Yellow River Basin ◽  
Spatiotemporal Variation ◽  
The Yellow River ◽  
Quality Change ◽  
Construction Land ◽  
Ecological Protection

China has set up ecological protection and high-quality development of the Yellow River Basin as its national strategy. However, the fragile natural ecosystem and intensive human disturbances pose challenges to it. This study evaluates habitat quality change and analyzes its drivers in a representative county of this region, aiming to provide scientific basis for ecological protection and sustainable development. We took Liulin, a representative county of middle Yellow River Basin as the study area and evaluated the spatiotemporal variation of habitat quality from 2000 to 2020 with the InVEST model. Further, the influencing factors of habitat quality pattern were explored using GeoDetector, and their gradient ranges dominating the habitat quality change were determined by gradient analysis. The results showed that: (1) Areas of low and medium-low habitat quality grades were distributed interactively in the whole county; medium grade areas were scattered in the northeast and southwest parts of the county; and medium-high and high grades area were distributed sporadically along the Yellow River and its branches. (2) Habitat quality of the county almost unchanged from 2000 to 2010. However, from 2010 to 2020, with the rapid expansion of construction land (increased by 9.62 times), the area proportion of medium, medium-high, and high habitat quality grades decreased from 7.01% to 5.31%, while that of low and medium-low habitat quality grades increased from 92.99% to 94.69%. (3) The habitat quality was influenced by multiple natural-human factors. The main influencing factor was land use, followed by elevation. (4) Most changes of habitat quality occurred in areas with lower elevation, gentler slope, and higher vegetation coverage, which were affected by intensive human activities. These results suggest that in future land use policy making and, the construction land expansion in Liulin County should be restricted and differentiated ecological protection and restoration strategies should be implemented in areas with different habitat quality.

scholarly journals Socio-Economic Behind TOD in Jakarta

2020 ◽  
Vol 202 ◽  
pp. 03014
Author(s):  
Riza Harmain ◽  
Hayati Sari Hasibuan ◽  
Ahyahudin Sodri
Keyword(s):  
Urban Development ◽  
Transit Time ◽  
Economic Activity ◽  
Economic Condition ◽  
Life Quality ◽  
Stable Condition ◽  
Quality Change ◽  
The World ◽  
The Future ◽  
Development Concept

TOD is a popular urban development concept implemented by many countries around the world, especially in Indonesia. This concept is also an exciting thing to study in various countries, but that does not happen in Indonesia. Research on the socio-economic TOD is still relatively less desirable than another focus. Therefore this research exists to provide new things in research on TOD in Indonesia. This research aims to identify the socio-economic condition based on three indicators, namely mobility movement, economic activity, and life quality. This research uses descriptive methods based on the response from 100 passengers from two TOD areas, namely Dukuh Atas and Lebak Bulus. The results show that movement mobility indicates a stable condition due to the short travel and transit time felt by the community. The economic activity occurs due to the commercial facilities around the TOD area. The life quality change appears caused by the benefits took by the community. This research shows that TOD in Indonesia creates socio-economic phenomena and has to further developed. This research can also be an incentive for academics to conduct similar research in the future.

scholarly journals Spatiotemporal Effects of Urban Sprawl on Habitat Quality in the Pearl River Delta from 1990 To 2018

2021 ◽  
Author(s):  
Jiansheng Wu ◽  
Xuechen Li ◽  
Yuhang Luo ◽  
Danni Zhang
Keyword(s):  
Economic Development ◽  
Habitat Quality ◽  
Pearl River Delta ◽  
Urban Expansion ◽  
River Delta ◽  
Pearl River ◽  
Quality Change ◽  
Ecological Civilization ◽  
The Pearl River Delta ◽  
The Pearl River

Abstract Since the implementation of the Chinese economic reforms, economic development in the coastal cities has resulted in serious degradation of habitat quality; however, the concept of "ecological civilization" has improved this situation. For quantitative analysis of the correlation between the Pearl River Delta urban expansion and changes in habitat quality under the influence of the policy, we first analyzed the habitat quality change based on the InVEST model and then measured the impact of construction land expansion on the habitat quality through habitat quality change index (HQCI) and contribution index (CI) indicators. Finally, the correlation between urbanization level and habitat quality was evaluated using geographically weighted regression (GWR) and the Self-organizing feature mapping neural network (SOFM). The results indicated that: (1) during the study period, the habitat quality index decreased from 0.7181 to 0.6672 owing to urban expansion, and the decrease was most significant from 2000 to 2010. (2) The urbanization index had a negative effect on the habitat quality, but this improved after 2000, reflecting the positive effect of policies such as "ecological civilization construction" (3) The importance of ecological civilization varies greatly among cities in the study area: Shenzhen, Dongguan, Foshan, and Zhongshan have the best level of green development. These results reflect the positive role of policies in the prevention of damage to habitat quality caused by economic development and provide a reference for the formulation of sustainable urban development policies with spatial differences.

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