Article
Construction & Building Technology
Mengyu Jiao, Yafei Wang, Mengmeng Hu, Beicheng Xia
Summary: The Pearl River Delta has experienced rapid urbanization over the past 40 years, leading to severe degradation in habitat quality, increasing landscape ecological risk, and changes in ecological security partition zones. Future land-use planning and management decisions should take these factors into consideration for balanced development.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Geography
Minkun Chen, Yan Tan, Xibao Xu, Yangyan Lin
Summary: Approximately 60% of the world's ecosystems are in a degraded and unsustainable state, with the Yangtze River Delta being one of the affected regions. This study assessed the ecological degradation in the area using ecosystem quality as an indicator, and identified specific areas for ecological restoration based on watershed and administrative boundaries. The findings provide guidance for sustainable development in the Yangtze River Delta and can be applicable to other regions.
Article
Geography
Long Li, Xianjin Huang, Dafang Wu, Hong Yang
Summary: Land use and cover change threaten urban ecological space, and sustainable ecological security patterns (ESPs) are important in urban landscape planning. This research developed a multi-scenario framework of ESPs for long-term ecological security in the Pearl River Delta. The results show that ecological sources and corridors vary under different scenarios, and the constructed ESP under the ecological priority scenario is the most effective in protecting ecological land. This work provides valuable insights for ecosystem conservation and land resource management in rapidly urbanizing areas.
Article
Environmental Sciences
Xinchuang Chen, Feng Li, Xiaoqian Li, Hongxiao Liu, Yinhong Hu, Panpan Hu
Summary: The study highlights the importance of identifying and managing ecological restoration areas for sustainable urban development, while also pointing out the lack of a scientific basis for the scope and scale of ecological restoration in current research. By proposing a transdisciplinary framework combining ecological quality, ecological health, and ecosystem services, priority restoration areas can be effectively identified and classified to achieve policy goals and fulfill public preferences.
Article
Social Sciences, Interdisciplinary
Yue Gong, Yanning Wei
Summary: This paper examines the extreme residential segregation in China's newest urban developments, arguing that factors such as the hukou system, market mechanisms, and urban planning practices contribute to this phenomenon.
Article
Environmental Sciences
Ting Li, Yuxiang Dong
Summary: This study uses the integrated ecological index RSEI to empirically investigate the relationship between urbanization and ecological quality in China's Pearl River Delta. The results reveal that the ecological development in the region experienced phased and polarized processes. Industrialization and the improvement of the legal system were identified as driving factors for the phased development, while differences in landform and land management were fundamental reasons for the spatial differentiation of ecological quality. These findings provide valuable insights for ecological management and sustainable development in rapidly growing regions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Hongxu Chen, Bingyin Chen, Weihua Chen, Ming Chang, Xuemei Wang, Weiwen Wang
Summary: This study uses future urban expansion data and a weather modeling system to explore and quantify the impact of future urbanization on regional climate change in the Pearl River Delta (PRD). The results show that the urban area will expand significantly, resulting in an increase in temperature and changes in heat fluxes. Urbanization alters the physical properties of the urban surface, leading to a warming effect in the PRD urban agglomeration.
Article
Biodiversity Conservation
Mengna Zhang, Yong Ao, Ming Liu, Yonghua Zhao, Kangli Lin, Tong Cheng
Summary: The ecological environment in the Pearl River Delta urban agglomeration is deteriorating, with low ecological security level, requiring enhanced environmental protection and balanced economic-ecological relationship.
ECOLOGICAL INDICATORS
(2022)
Article
Ecology
Xin Wang, Zhe Zhang, Haiguang Hao, Chao Zhang, Ding Wang
Summary: The ecological conservation redline (ECR) policies implemented in the Pearl River Delta (PRD) area in China have effectively protected biodiversity and maintained ecological security. The ECR area has shown less land use change, higher landscape stability, and better habitat quality compared to the area outside the ECR. The implementation of ECR policies has been successful in protecting the environment in the PRD area and can serve as a model for other regions.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Environmental Sciences
Lingzhi Yin, Yafei Wang, Chenglai Sun, Yuxuan Ye
Summary: Based on the analysis of 20 years of remote sensing images in the coastal zone of the Yangtze River Delta in China, it was found that coastal land use has undergone significant changes, with artificial surface expansion increasing by 229% and cropland decreasing by 19%. The study provides valuable insights for policymakers to formulate targeted and differentiated coastal development and protection policies.
Article
Environmental Sciences
Haiyan Li, Zini Lai, Yanyi Zeng, Yuan Gao, Wanling Yang, Yongzhan Mai, Chao Wang
Summary: This study investigated the pollution characteristics, sources, and ecological risks of PAHs in surface sediments from the river networks and outlets of the Pearl River Delta. The results showed that PAHs in sediments were mainly derived from coke tar and liquid fossil fuel combustion, coal/wood combustion, and petroleum contamination. Ecological risks of PAHs were found to be at moderate levels in the Pearl River Delta, indicating the need for regular monitoring.
MARINE POLLUTION BULLETIN
(2021)
Article
Green & Sustainable Science & Technology
Wei Liu, Jinyan Zhan, Fen Zhao, Chao Wang, Fan Zhang, Yanmin Teng, Xi Chu, Michael Asiedu Kumi
Summary: This study evaluates the changes in ecosystem services in the Pearl River Delta and analyzes the drivers behind these changes from the perspectives of nature, society, and economy. The results show that the driving factors for different ecosystem services vary and the spatial distribution of these services is heterogeneous.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Studies
Jingyu Wang, Wei Liu, Fanbing Kong
Summary: This study evaluates and analyzes the value and conversion efficiency of ecological products in the Pearl River Delta using the InVEST model and super-efficient DEA model. The results show significant growth in the value of ecological products in the past 15 years, but there are considerable differences in conversion efficiency among different cities.
Article
Geography, Physical
Shaojian Wang, Zitian Cui, Jingjie Lin, Jinyan Xie, Kun Su
Summary: Urban resilience is an emerging research topic in urban studies, which refers to the ability of cities to withstand, recover from, and adapt to uncertain disruptions. This paper constructs an urban ecological resilience evaluation system based on Size, Density, and Morphology, and measures the degree of coupling coordination between urbanization and ecological resilience in the Pearl River Delta from 2000 to 2015. The results show that the urbanization level increased while the ecological resilience decreased during this period, and the coupling coordination degree between the two systems shifted from basic coordination to basic imbalance. The spatial distribution of coupling coordination degree exhibited a circular pattern, with higher coordination degree towards the periphery from the cities at the estuary of the Pearl River. The different sub-systems of ecological resilience played varying roles in the coupling coordination process.
JOURNAL OF GEOGRAPHICAL SCIENCES
(2022)
Article
Environmental Studies
Qiongrui Zhang, Tao Huang, Songjun Xu
Summary: This study constructs an evaluation framework for urban ecological resilience (UER) based on the pressure-state-response (PSR) framework, evaluates morphological resilience (MR) using source-sink landscape theory, evaluates density resilience (DR) using the ratio of ecological carrying capacity to ecological footprint, and evaluates response using indicators of economic structure, vitality, and innovation. The study found that the spatial layout of comprehensive UER was low in the middle and high in the periphery of the study area. Some areas with low MR and DR have high UER, verifying the compensation effect of ecological resilience on urban ecology. This study provides a new method for assessing UER and useful information for urban planning.
Article
Engineering, Environmental
Xinjie Hu, Lin Gao, Chuanming Ma, Xiaojing Hu
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2020)
Article
Engineering, Civil
Lin Gao, Xinjie Hu, Chuanming Ma, Heng Kuang, Huihui Qi, Zekang He
NATURAL HAZARDS REVIEW
(2020)