Assessment of Localized Targets of Sustainable Development Goals and Future Development on Hainan Island

We explored the characteristics of landscape pattern (LP) changes in the Nandu River Basin (NRB) and its dynamic response mechanism to anthropogenic disturbance (AD). This is important for ecological protection and for land use decision-making in the basin in the context of the construction of a free trade port. Land use and land cover change (LULCC) data of 1990, 2000, 2010, and 2020 were analyzed with the help of the LP index, moving window method, hemeroby index, geo-information atlas, and geographic information system (GIS) spatial analysis to reveal the dynamic changes in LP characteristics in the NRB. Furthermore, this paper discusses into the correlation between LP and AD. The results indicate that over the past three decades, the NRB showed a staggered LP, dominated by forestland and cropland, whose total area has decreased by 25.27 km2 and 62.75 km2, respectively. On the other hand, the built-up land increased by 91.37%. The overall landscape fragmentation, landscape patch homogeneity, and landscape diversity have increased in the NRB. AD is the main reason for the dramatic changes in the LP of urban agglomerations centered in Haikou city. The area of minor disturbance (over 34%) occupies the largest proportion of the land, followed by higher (about 13~25%) and moderate disturbances (about 17~22%). The area of minor and strong disturbances has increased significantly, whereas those of moderate and higher disturbances have significantly decreased. The spatial distribution pattern of AD is gradually increasing from the southwest (natural landscape) to the northeast (human landscape). A transition in areas of low disturbance levels to higher levels is obvious. The area of the atlas that has transitioned from “minor → lighter disturbance (12)” and “higher → minor disturbance (41)” changed changed most significantly during 2000 to 2010 and from 2010 to 2020, occupying 26.79% and 11.99% of the transfer atlas, respectively. All regions encountering disturbances were significantly correlated with the largest patch index (LPI) from 1990 to 2020. The overall AD in the NRB has increased, especially in Haikou. Urbanization is the main factor for an increase in AD. The ecological and environmental management and monitoring in the basin need to be strengthened.

Section: Sustainable Development and Policy Objectives Of The Nrbmentioning

confidence: 99%

Impacts of Spatio-Temporal Changes in Anthropogenic Disturbances on Landscape Patterns in the Nandu River Basin, China

Mao,

Wei,

Gong

et al. 2024

“…terns and changes in habitat quality, along with the evolution of their aggregation characteristics, thus shedding light on habitat connectivity and ecological integrity. The study aims to address three key issues: (1) analyzing the spatial distribution characteristics of habitat sensitivity in Sanjiangyuan National Park; (2) exploring the spatial distribution characteristics of the landscape pattern in the region; and (3) assessing the correlation between landscape pattern and habitat sensitivity, as well as the evolution of its aggregation characteristics in Sanjiangyuan National Park. Based on these analyses, the study will furnish a scientific basis and practical guidance for regional ecological protection policy formulation, biodiversity conservation, and regional sustainable development strategies.…”

Section: Research Areamentioning

confidence: 99%

“…The construction of national parks is closely related to the Sustainable Development Goals (SDGs). National parks contribute to achieving multiple SDGs through their roles in ecological conservation, promoting economic development, and enhancing social welfare [1][2][3]. National parks play a vital role in safeguarding the landscape resources of a nation, encompassing ecological conservation and the management of recreational scenic resources [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Ecological Sensitivity and Spatial Correlation Analysis of Landscape Patterns in Sanjiangyuan National Park

Liu,

Peng,

2024

The Sanjiangyuan region, situated on the Qinghai–Tibetan Plateau, constitutes an exceptionally delicate ecological environment. Alterations in the region’s ecological landscape stem not only from natural factors but also from significant anthropogenic influences, exerting a notable impact on the sustainable economic and social development of the region’s middle and lower reaches. Consequently, investigating changes in the landscape pattern of Sanjiangyuan National Park holds paramount importance for comprehending the formation mechanism of spatial landscape distribution in the area. This study analyzes the ecological sensitivity and landscape pattern of Sanjiangyuan National Park in Qinghai Province, China, utilizing ArcGIS 10.8 and Fragstats 4.2. Employing the bivariate spatial autocorrelation analysis method, the research uncovers the spatial distribution characteristics between ecological sensitivity and landscape pattern, along with their aggregated change traits. The findings reveal that ecological sensitivity areas within the park encompass varying degrees, ranging from extremely sensitive to insensitive. The area of moderately sensitive zones in the Yellow River source region is 7279.67 km2 (39.17%), whereas the corresponding area in the Yangtze River source region is 32,572.34 km2 (36.30%). The eastern and northern parts of the Sanjiangyuan National Park exhibit significant landscape fragmentation. Ecological sensitivity varies markedly across different regions, with the southern and some northern areas showing higher sensitivity. In the Lancang River source park and the southern part of the Yellow River source park, the Largest Patch Index (LPI) and Ecological Sensitivity Index exhibit a high–high (HH) clustering pattern, indicating strong ecological connectivity in these areas. These regions also feature high Total Edge (TE), Number of Patches (NP), Patch Density (PD), and Edge Density (ED), indicating a complex landscape structure and abundant habitat edge areas. The study recommends restoring ecological connectivity in highly fragmented areas and implementing strict protection measures in sensitive regions to maintain ecosystem health and biodiversity. These findings provide a foundation for developing targeted ecological protection measures to enhance ecosystem health and biodiversity conservation in the area. This research aligns with several Sustainable Development Goals (SDGs), including Climate Action, Life on Land, and Clean Water and Sanitation, by promoting sustainable ecosystem management and biodiversity conservation.

“…However, the relationship between population mobility on a smaller timescale and island resilience remains to be tested, which is the main research focus and innovation point of this paper. Scaling laws of socio-economic outputs of cities focus on the deterministic role of population size within a city, while the effect of connectivity between cities on island economic outputs and overall development cannot be ignored [31,32].…”

Section: Related Workmentioning

confidence: 99%

Exploring Intra-Island Population Mobility and Economic Resilience: The Case of Hainan Island, China

Fang,

Liu

2023

Islands may be more resilient than we realize when responding to shocks. As COVID-19 lessens international tourism to islands, it is valuable to explore whether island recovery can be accredited to the interactive behaviors within the island. Therefore, this research takes 18 administrative regions within Hainan Island as the research object, uses population migration big data to show the intra-island interaction network, and focuses on the impact of population mobility on economic resilience under the pandemic shock. Overall, population mobility contributes to the recovery of economic resilience under the pandemic shock, but this effect is regionally heterogeneous between the economic circle and the ecological conservation area. During the study period, there is a local spatial autocorrelation between economic resilience and population mobility, showing sporadic scattered distributions of the H-H, H-L and L-L cluster. The research findings offer practical strategies to improve island resilience.