Spatiotemporal Dynamics and Attribution Analysis of Blue and Green Water Resources During 1980–2019 in the Hanjiang River Basin, China

Water, Journal Year: 2025, Volume and Issue: 17(7), P. 1008 - 1008

Published: March 29, 2025

A SWAT (soil and water assessment tool) model was built to elucidate the spatiotemporal dynamic changes in blue/green resources during 1980–2019 Hanjiang River Basin, China. Several scenarios were constructed analyze differentiation between green blue diverse climate land utilization conditions. The results showed that (1) mean 392.24 410.48 mm/year; (2) a non-significant fluctuating decreasing trend, while increasing trend volume; (3) high-value areas of concentrated western, northeastern, southeastern parts whereas western region had more abundant resources; (4) compared with effects use change, factors contributed much variations Basin. Overall, most Basin downward 1980–2019. findings may offer theoretical support for optimal allocation management China, under change.

Language: Английский

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Study on the Spatiotemporal Evolution of Urban Land Use Efficiency in the Beijing–Tianjin–Hebei Region

Sustainability, Journal Year: 2024, Volume and Issue: 16(7), P. 2962 - 2962

Published: April 2, 2024

The Beijing–Tianjin–Hebei region (BTH) is one of the crucial areas for economic development in China. However, rapid urban expansion and industrial this have severely impacted surrounding ecological environment. air quality, water, soil resources face significant pressure. Due to close relationship between land utilization, population, investment, industry, effective use a key factor coordinated region. Therefore, clarifying patterns change revealing its influencing factors can provide important scientific evidence BTH This study aims improve efficiency (ULUE) Firstly, based on input output data elements 13 cities region, Data Envelopment Analysis (DEA) method used quantify ULUE agglomeration analyze spatiotemporal characteristics ULUE. Input indicators includes capital, labor, land. Output economy, society, results show that overall has increased, albeit with notable fluctuations. Between 2000 2010, rose swiftly across all except Beijing Tianjin, where changes were minimal. Post-2010, exhibited varied trends: steady growth, slow sustained step-wise initial growth followed by decline. Spatially, before showed “high northeast low southwest” pattern, transitioning post-2010 smoother “core-periphery” pattern. Mid-epidemic, high values reverted core area, shifting southward post-epidemic. Secondly, panel analysis conducted explore indicate fiscal balance, level openness, digitalization, structure, green are affecting Finally, strategies proposed including national spatial planning, layout, existing use, infrastructure construction, optimization local revenue, improvement business environment, aiming enhance promote industries

Language: Английский

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Contributing to Carbon Neutrality Targets: A Scenario Simulation and Pattern Optimization of Land Use in Shandong Province Based on the PLUS Model

Sustainability, Journal Year: 2024, Volume and Issue: 16(12), P. 5180 - 5180

Published: June 18, 2024

Land use profoundly impacts the sustainable development of ecological environment. Optimizing land patterns is a vital approach to mitigate climate change and achieve carbon neutrality. Using Shandong Province as case study, this research evaluates cover (LUCC) on regional storage emissions. Employing coupled PLUS–InVEST–GM(1,1) model, simulations were conducted for scenarios including natural scenario (NS), cropland protection (CPS), high-speed (HDS), low-carbon (LCS), assess LUCC changes in emissions from 2030 2060 under these scenarios. The findings indicate that due expansion construction significant declines arable grassland areas, increased by 40,436.44 × 104 t over 20-year period, while decreased 4881.13 t. Notably, forests contributed most sequestration, emerged primary source Simulating four demonstrates measures such protecting cropland, expanding forest, grassland, aquatic controlling expansion, promoting intensive positively affect emission reductions sequestration Shandong. These underscore importance rational planning patterns, which can enhance contributions neutrality harmonizing relationships among protection, conservation, economic development.

Language: Английский

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Spatio-Temporal Analysis and Impact of Land Use Land Cover in Eco-Environmental Quality Based on Remote Sensing Ecological Index (RSEI): A Case Study of Rupandehi District, Nepal

Published: July 8, 2024

The evaluation of Eco-Environmental Quality (EEQ) is important to maintain the quality ecology and crucial for protection environment promote sustainable development. In past 30 years, Rupandehi district has gone into rapid urbanization population growth due migration people causing drastic changes in Land use. This study takes as a area analyses land use change dynamics its impact on ecological from 1993 2023. utilizes cloud computing capability Google Earth Engine (GEE) extract multiple indices using Landsat remote sensing data. We also applied Thresholding approach various spectral information GEE. Remote Sensing Ecological Indices (RSEI) was constructed Principal Component Analysis (PCA) monitor effect Use Cover (LULC) analysed. result shows that overall good ranging 0.59 0.67 2023 with significant change. eco-environmental deteriorating because sharp increase built-up areas deforestation well loss agricultural land. Meanwhile, spatial temporal distribution collides area. provides an accurate assessment monitors it providing scientific basis researchers, government, others preserve eco-friendly

Language: Английский

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A blue–green ratio of urban wetlands as an ecosystem health indicator: the case of urban sprawl in Nagpur, India

Environmental Hazards, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 20

Published: Nov. 11, 2024

Rampant urban sprawl has affected the structure and function of existing green blue spaces, exposing developing cities to unexpected disaster events. Drawing on a mixture secondary information supported by GIS field-based studies, we assessed impact growing impervious surfaces dynamic zones wetlands in Nagpur, India. We compared decadal data (2000-2020) understand pattern wetland loss its drivers region. Our findings reveal significant area over past two decades, raising alarming concerns regarding ecological economic repercussions. To address these issues, propose blue–green buffer-based assessment approach that incorporates local knowledge observations along with proactive monitoring ecosystem health. study highlights urgency reducing spatial complexity landscape patches, restoring buffers, declaring buffers as no-go zones, promoting corridor connectivity improve infrastructure Multi-sectoral stakeholder cooperation, involvement, strict enforcement Wetland Rules (2017) governing bodies can help build resilience protecting infrastructure.

Language: Английский

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Analyzing the Land Use and Cover Change Inside and Outside China’s Ecological Function Area

Land, Journal Year: 2023, Volume and Issue: 12(7), P. 1447 - 1447

Published: July 20, 2023

The establishment of nature reserves and ecological function areas is crucial for preserving the natural environment invaluable services provided by ecosystems. In our study, we conducted a comprehensive analysis using 2011–2020 Chinese land cover dataset to examine impact on regional use change. This allowed us quantify visualize intensity, aggregation effects, transformation paths change while considering China’s areas. Our findings highlight notable disparities in types between area its surroundings. Within area, forest grassland dominate, constituting 67% total cover. contrast, outside there greater presence wasteland, addition grassland. Moreover, abundance impervious surfaces, which are closely linked human activities, significantly higher almost double amount found inside. By examining specific types, observed that forests exhibit least within whereas croplands experience outside. Throughout study period, approximately 8.1% pixels underwent changes, with some displaying frequency reaching up 2. Interestingly, number high-frequency inside only half Notably, percentage surfaces (0.13%) were converted into cropland compared (0.07%). Understanding dynamics provides valuable insights effective resource management planning. It enables make informed decisions ensure sustainable development conservation these

Language: Английский

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Ecological quality of a global geopark at different stages of its development: Evidence from Xiangxi UNESCO Global Geopark, China

Global Ecology and Conservation, Journal Year: 2023, Volume and Issue: 46, P. e02617 - e02617

Published: Aug. 31, 2023

Geoparks are home to unique and precious geological sites have a rich historical cultural heritage. Most studies focused on their tourism value and/or educational significance. However, far too little attention has been paid the impact of geopark construction local ecological environment. The Xiangxi UNESCO Global Geopark (XXGG) was used as case study explore global quality. Three indices, including an quality index based productive, residential, land use, improved remote-sensing (RSEI-2), net primary productivity (NPP), were adopted evaluate XXGG during two periods: before (from 2015 2017) 2018 2020). results show that: (1) in general, all indicators showed downtrend followed by uptrend 2020), indicating that development had significant positive effect This occurred because series environmental protection measures taken after application United Nations Educational, Scientific, Cultural Organization (UNESCO) (UGGPs) for membership at end 2017. (2) areas with excellent mainly distributed northern southeastern portions, which located protected area high coverage rates forest other vegetation. Poor east south is closely related human activities, such ethnic development. relationship between regional effects provide scientific reference sustainable geoparks.

Language: Английский

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The Response of Composite Ecosystem Services to Urbanization: From the Perspective of Spatial Relevance and Spatial Spillover

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Journal Year: 2023, Volume and Issue: 16, P. 8204 - 8214

Published: Jan. 1, 2023

Ecosystems offer a wide array of benefits to support human livelihoods and enhance quality life. Quantitative evaluation Ecosystem services (ESs) is crucial for achieving the goal sustainable development. The Yellow River Basin has large population, there are contradictions conflicts in ecological protection, resource utilization, economic development, among which downstream region most prominent. However, ecosystem selected existing research not comprehensive enough, also few studies that further focus on effects urbanization this basis. This paper calculated seven types ESs based InVEST model related methods, then constructed composite service index (CESI), studied its spatiotemporal evolution response indicators through bivariate spatial autocorrelation metrological models. We found from 1990 2020, CESI fluctuated decreased with time, significant positive correlation, but showed weakening trend. There were differences process correlation between population density, land development degree, ultimately changed negative. In terms spillover effect, density had effect CESI, negative weak effect. provides certain reference basis governments at all levels formulate relevant strategies environmental protection

Language: Английский

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The Impact of Land Use/Cover Change on Ecological Environment Quality and Its Spatial Spillover Effect under the Coupling Effect of Urban Expansion and Open-Pit Mining Activities

Sustainability, Journal Year: 2023, Volume and Issue: 15(20), P. 14900 - 14900

Published: Oct. 16, 2023

Suburban open-pit mining concentration areas are both the frontline of urban expansion and main battlefield in mineral resource development. These dual forces have resulted significant land use/cover changes (LUCC), which play a crucial role determining ecological environment quality (EEQ). However, research examining how LUCC affects EEQ under coupled impact these two development events is currently lacking. In this study, response to was evaluated using Landsat images from 2000, 2010, 2020 for southern suburban area Jinan City. A relative contribution index used address environmental effects non-dominant types, on its spatial spillover were revealed by also carrying out buffer zone analysis. The findings study indicate that: (1) dominant types that influence pattern farmland, grassland, construction land. Among them, farmland largest, with more than 1800 km2. Changes mine rehabilitation made most EEQ, i.e., 0.0735 0.0184, respectively. (2) transformation into woodland shown exacerbate deterioration area, 1367.54 km2 spillovers up 1000 m. (3) Returning as well returning rehabilitation, found be factors contributing improvement an 1335.67 extending 500 800 (4) Nevertheless, uneven continue aggravate agglomerative effect deterioration. Further refinement enhancement methods standards governance urgently needed counterbalance between degradation improvement. This provides scientific reference promotion protection sustainable cities.

Language: Английский

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Response of Ecological Quality to Land Use/Cover Change During Rapid Urbanization of Xiong’an New Area

Land, Journal Year: 2024, Volume and Issue: 13(12), P. 2167 - 2167

Published: Dec. 13, 2024

Rapid urbanization facilitates socioeconomic development but also exacerbates land use/cover change (LUCC), significantly impacting ecological environments. Timely, objective, and quantitative assessments of quality changes resulting from LUCC are essential for safeguarding the natural environment managing resources. However, limited research has explored potential interrelationships between spatio-temporal heterogeneity during urbanization. This study focuses on Xiong’an New Area, a region experiencing rapid urbanization, utilizing remote sensing-based index (RSEI) to monitor dynamics 2017 2023. To address computational challenges associated with large-scale regions, streamlined RSEI construction method was developed using Landsat imagery implemented via Google Earth Engine (GEE). A geographically weighted regression (GWR) analysis, integrated Sentinel-2 use data, employed examine influence quality. The findings reveal following: (1) Ecological in Area exhibited an overall positive trajectory, improvements elevating status above moderate levels. (2) Urban expansion resulted 17% reduction farmland, primarily converted into land, which expanded by approximately 12%. (3) protection policies have facilitated conversion farmland wetlands urban green areas, emerged as principal contributors enhancement. (4) correlation observed quality, while negative identified shifts provides valuable scientific insights conservation management, thereby establishing foundation rational resource planning sustainable strategies Area.

Language: Английский

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