In recent years, the development of abandoned mining land has become a focal point in landscape planning. However, during the development of abandoned mining land, there often exists a phenomenon of prioritizing economic considerations over ecological concerns, leading to a failure to achieve genuinely sustainable development. An ecological sensitivity assessment, guided by the principles of protection and development, provides an evaluation framework that directs planning strategies for abandoned mining land from the perspective of balanced development and conservation. To facilitate the development and construction of abandoned mining land, this paper utilizes GIS technology, on-site surveys, analytic hierarchy processes, etc. Taking the abandoned mining land in Haining, Zhejiang, China, as the research subject and considering its unique site conditions, ecological sensitivity is divided into topographic conditions, surface water systems, and plant landscapes. Ecological sensitivity factors are selected, and an ecological sensitivity assessment system is constructed from the perspectives of ecological conservation and sustainable development. Using ArcGIS 10.2 and Fragstats 4.2 software, landscape pattern analysis is conducted, exploring the relationship between landscape patterns and ecological sensitivity assessment results from the perspectives of landscape fragmentation, diversity, and aggregation. By comparing the results of single-factor sensitivity analysis and comprehensive sensitivity analysis, as well as landscape pattern indices before and after classifying ecologically sensitive areas, the practicality of the evaluation system is verified, facilitating planning studies and providing design recommendations for abandoned mining land. Landscape pattern indices serve as supplementary explanations for ecological sensitivity. Based on the results of ecological sensitivity assessment and landscape pattern indices, the ecological conservation levels in the research area are classified into five categories: the Level I Comprehensive Protection Zone, Level II Moderately Developed Zone, Level III Construction Suitable Zone, Level IV Core Construction Zone, and Level V Core Development Zone. These correspond to ecological protection zones, sightseeing experience zones, historical exhibition zones, core commercial zones, and themed amusement zones, respectively. The I-level sensitive area in the research area has the smallest range, while IV-level and VI-level sensitive areas have larger extents, exhibiting a high degree of overall landscape fragmentation but with diverse and dominant landscape types. Integrating ecological sensitivity assessment results and landscape pattern indices aids in delineating ecological conservation levels and regional functional recreation zones, guiding the rational recreation allocation of resources for abandoned mining land and promoting its development into a scenic area integrating ecology and tourism.

Economic development often results in significant greenhouse gas emissions, contributing to global climate change, which demands immediate attention. Despite implementing various low-carbon policies to promote sustainable economic and environmental progress, current evaluations reveal limitations and deficiencies. Therefore, this study utilizes a dataset detailing policy intensity at a prefecture-level city in China to investigate the impacts of these policies on carbon emission reduction from 2007 to 2022 in 334 prefecture-level cities, employing a fixed-effects model. Additionally, it assesses the policies’ efficacy. The findings indicate a significant negative correlation between China’s low-carbon policies and carbon emissions, supported robustly by multiple tests. Specifically, a one-unit increase in China’s policy intensity correlates with a 0.53-unit reduction in carbon emissions. Furthermore, the heterogeneity analysis shows that variations in urban agglomerations, environmental resource endowments, pollution levels, and low-carbon policy intensities influence the effectiveness of these policies in reducing carbon emissions. This analysis underscores that policy intensity achieves emission reductions through technological innovation, industrial transformation, welfare crowding out, and pollution transfer, with varying impacts across different environmental contexts, pollution levels, and policy intensities. Based on this analysis, we recommend several policies: formulating low-carbon strategies tailored to local conditions, enhancing regional low-carbon policies, establishing cross-regional coordination mechanisms, and so on. These recommendations not only offer valuable policy insights for China but also serve as useful references for the green and sustainable development of other developing countries.

The development of the mining park has impacted the richness of bird diversity. Coordinating the harmonious coexistence of humans and birds is a core issue for the sustainable development of the mining park. This study aims to investigate the relationship between landscape patterns and bird diversity and propose ecological restoration strategies for the mining park. Through field surveys and fixed-transect methods, the existing dominant bird species in the mining park were surveyed. The Shannon index was used to analyze the level of bird diversity in the mining park. A site plan of the mining park was drawn, and ArcGIS 10.8 and Fragstats 4.2 software were used to statistically analyze the landscape patterns of the mining park. The results of the two data sets were compared and analyzed to determine the relationship between landscape patterns and bird diversity. A total of eight landscape types were identified, and diversity indices, including the H (Shannon diversity index), F (species richness index), G (genus richness index), and G-F indices, were calculated. Existing issues in the site include diverse aquatic landscape types but poor connectivity, heterogeneous rocky landscape, bird habitat degradation, and frequent human interference. Proposed solutions include building ecological floating islands (habitat-type floating islands, restoration-type floating islands) to connect patches; comprehensive restoration combining full and partial restoration to restore bird habitats and increase vegetation coverage of rocky patches; low human interference design through ecological protection control zones, landscape functional zones, and park road design to create an environment for bird habitats and a mining park landscape suitable for leisure recreation, creating a new home for cohabitation between humans and birds. The research results indicate that landscape pattern diversity, heterogeneity, fragmentation, and human interference affect the richness of bird diversity. Ecological restoration, plant cultivation, and zoning planning can transform the site, enhance the landscape, and provide theoretical support and practical guidance for the creation of habitats for similar bird species.

This study examines the photovoltaic (PV) landscape-related literature indexed in the Web of Science database from 2005 to 2024, employing a combination of bibliometric analysis software and a manual review to analyze, explore, and summarize the development trajectory and future trends in PV landscape research. Over the past two decades, PV landscape research has progressed through three stages: the foundational stage from 2005 to 2008, during which studies primarily focused on the environmental impacts of PV installations; the developmental stage from 2009 to 2020, characterized by interdisciplinary integration, with research shifting its focus to the combination of PV systems with living and production environments, advancements in PV landscape technologies, and innovations in PV materials; and the maturity stage from 2021 to 2024, which has seen heightened requirements for energy conversion efficiency and stability in PV systems, along with the establishment of a systematic research framework for PV landscapes, enabling more diverse explorations of its development. Based on this analysis, this study summarizes key research frontiers in PV landscapes, including the impacts and assessment of PV installations on the ecological environment, the deep integration of PV systems with living environments, and the visual aesthetic impacts and evaluation of PV landscapes. Finally, this study proposes three future prospects for PV landscapes and briefly discusses the limitations of this research.

Against the dual backdrop of rapid urban development and the drive to build an ecological civilization, coordinating industrial growth with ecological protection is crucial for the sustainable development of industrial cities. Using Haining—a typical industrial city—as a case study, this paper analyzes land-use and landscape-pattern evolution with five phases of land-use/land-cover data (1980, 1990, 2000, 2010, and 2020) and constructs an ecological security evaluation system. The results indicate that (1) under policy influences, multiple land types in Haining tended to convert into urban–rural residential construction land; (2) over the past forty years, the landscape pattern became more optimized, and ecological security improved, with increased diversity alongside reductions in fragmentation and contagion; and (3) the overall ecological security level rose significantly during the same period. Sustained macro-level policy regulation is needed to maintain long-term ecological security in industrial cities. The study shows that Haining’s ecological security is closely linked to landscape patterns, land-use change, and human disturbance. By tailoring development strategies for different stages, ecological security and sustainable development can be effectively supported, offering guidance for Haining and industrial cities worldwide.