Spatiotemporal dynamics and forecasting of ecological security pattern under the consideration of protecting habitat: a case study of the Poyang Lake ecoregion

International Journal of Digital Earth, Journal Year: 2024, Volume and Issue: 17(1)

Published: July 10, 2024

The continuous expansion and development of anthropogenic activities pose considerable threats to the habitats myriad species. Therefore, exploring how protect optimize species' achieve harmony between humans nature is particularly important. As a paradise for wildlife, Poyang Lake habitat breeding ground birds, fish, other aquatic organisms. In this study, adopting multi-level perspective 'point-line-area', we had an appliance conservation by constructing ecological security pattern (ESP) in Ecoregion (PYLE). We produced land use cover from 2000 2040 using random forest cellular automata-Markov model. Combining morphological spatial analysis, landscape index, Linkage Mapper, constructed long-term ESP PYLE considering protection. spatiotemporal dynamics were compared analyzed. results show that PYLE's rapid economic led extensive urban growth, encroaching on surrounding bare land, which could undermine local survival. Based predicted 2040, propose optimized 'one area, two zones, multiple points' scheme prioritize This comprehensive study provides innovative ideas novel insights future research policy formulation

Language: Английский

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Multiscale exploration of spatiotemporal dynamics in China's largest urban agglomeration: An interactive coupling perspective on human activity intensity and ecosystem health

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 376, P. 124375 - 124375

Published: Feb. 10, 2025

Language: Английский

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How human activities affect and reduce ecological sensitivity under climate change: Case study of the Yangtze River Economic Belt, China

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 472, P. 143438 - 143438

Published: Aug. 23, 2024

Language: Английский

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Spatiotemporal evolution and impact mechanism of ecological vulnerability in the Guangdong–Hong Kong–Macao Greater Bay Area

Ecological Indicators, Journal Year: 2023, Volume and Issue: 157, P. 111214 - 111214

Published: Nov. 14, 2023

The constant conflict between the rapidly developing socioeconomic and ecological environment within Guangdong–Hong Kong–Macao Greater Bay Area necessitates exploration of ecosystem vulnerability patterns driving mechanisms. A comprehensive social–economic–ecological framework is proposed to assess pattern Area, specifically spanning from 1990 2020. Employing geographic detectors weighting methods, study quantifies spatiotemporal variation underlying mechanisms in area. results demonstrate an obvious trend index (ESVI) across with initial decline followed by gradual increase during the1990–2020. substantial majority region (approximately 63.85% total area) experienced a ESVI 2010. Moreover, spatial distribution this exhibited prevailing east-to-west pattern, indicating overall southward shift over time. Furthermore, was primarily concentrated central expanding urban areas situated on both sides Pearl River estuary. Encouragingly, notable amplification observed 2010 2020, which attributed development, utilization, protection land, forests, water bodies, other pertinent factors associated expansion. impact climate change changes exhibits growing magnitude time, while human activities persist as predominant driver changes. natural exerted upper reaches River, included topographic relief, precipitation, network density, biological abundance, related aspects. Conversely, pronounced influence predominantly manifests agglomeration Delta. Key contributors such manifestation encompass land types, intensity activities, population variables. Changes use have potential induce heightened amelioration practices can be mitigated reduced employing ESVI. introduced holds extend assessments regions similar types. It expected that findings derived could contribute formulation policy recommendations pertaining management.

Language: Английский

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Dynamic Changes in Vegetation Ecological Quality in the Tarim Basin and Its Response to Extreme Climate during 2000–2022

Forests, Journal Year: 2024, Volume and Issue: 15(3), P. 505 - 505

Published: March 8, 2024

The Tarim Basin is located in an arid inland area; the ecological environment fragile, and it extremely sensitive to climate change. For purpose of studying dynamic changes vegetation response extreme climate, this study used Vegetation Ecological Quality Index (EQI) as a indicator calculated 12 indices using Rclimdex. Pearson correlation analysis was explore relationship between EQI values various at both inter-annual intra-annual scales. Additionally, geographic detector employed examine single interactive effects on for different types. following found: (1) During 2000–2022, showed upward trend Basin, increase agricultural fastest. (2) Since 2000, warm temperature have risen, whereas cold declined. warming rate nighttime temperatures exceeds that daytime, precipitation rises intensively. Simultaneously, continuous dry days also increased. (3) On scale, primarily negatively correlated with most indices, while positively indices. there obvious regional concentration diurnal range (DTR) daytimes (TX10P) inhibitory promoting areas high low EQI, respectively. extremum intensity effect inhibiting EQI. interaction has greater impact than index, especially significant forests shrubs. This provides reference early warning meteorological disasters, ecosystem protection, sustainable management Basin.

Language: Английский

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Land use and RSEI spatial-temporal changes in Horqin Sandland (Inner Mongolia, China)

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Evaluating Vulnerable Zones and Spatiotemporal Dynamics in Saemangeum Lake Under Sluice Gate Operation

Published: Jan. 1, 2025

Language: Английский

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Impacts of Climate Change on the Habitat Suitability and Natural Product Accumulation of the Medicinal Plant Sophora alopecuroides L. Based on the MaxEnt Model

Plants, Journal Year: 2024, Volume and Issue: 13(11), P. 1424 - 1424

Published: May 21, 2024

Sophora alopecuroides L., a perennial herb in the arid and semi-arid regions of northwest China, has ecological functions windbreaking sand fixation high medicinal value. In recent years, global warming human activities have led to changes suitable habitats for S. alopecuroides, which may affect accumulation natural products. this study, MaxEnt 3.4 ArcGIS 10.4 software were used predict distribution potentially China under climate change. Furthermore, geographical as affected by activities, differences content products between different habitats, correlation environmental factors analyzed. The results showed that projected expand future, major temperature (Bio1), rainfall (Bio18), soil pH (pH). When Bio1, Bio18, 8.4283 °C, 7.1968 mm, 9.9331, respectively, probability (P) was highest. After adding activity factor, accuracy model prediction improved, area greatly reduced, showing fragmented pattern. Meanwhile, habitat suitability had specific effect on alopecuroides. Specifically, wild higher than artificial cultivation, highly contents those non-highly habitats. total alkaloids flavonoids positively correlated with negatively land use types. Among them, aspect, aspect. addition, it is suggested Xinjiang should be priority planting given protection measures Alashan area. Overall, study provides an important foundation determination areas resource

Language: Английский

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Landscape Ecological Risk and Drivers of Land-Use Transition under the Perspective of Differences in Topographic Gradient

Land, Journal Year: 2024, Volume and Issue: 13(6), P. 876 - 876

Published: June 18, 2024

Human activities have caused different degrees of land-use change on topographic gradients, with impacts the landscape and ecosystem. Effectively preventing addressing ecological risk (ER) achieving harmonious coexistence between humans nature are important aspects sustainable development. In this study, we used Gansu Province as an example, adopted five periods data in 1980, 1990, 2000, 2010 2020, geoinformatic Tupu method terrain distribution index to study changes under then constructed assessment (LERA) model based pattern analyze (LER) spatiotemporal finally explored LER driving factors using geodetector model. The results showed that (1) dominant types were unused land grassland, accounting for approximately 74% land. situation transferring changing each type was more drastic. cropland built-up easily found low gradient areas elevations small slopes; woodland, grassland water high large slopes. (2) (LERI) 0.018, 0.019, 0.019 0.020, respectively, spatial expressions northwest southeast. Low concentrated reserves; human interference natural environmental complex areas. (3) Natural mainly acted moderate position gradients; socioeconomic gradients. interacted than alone LER. This can provide a scientific basis ensuring security development topography geomorphology.

Language: Английский

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The vulnerability assessment and obstacle factor analysis of urban agglomeration along the Yellow River in China from the perspective of production-living-ecological space

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(4), P. e0299729 - e0299729

Published: April 5, 2024

Urban agglomerations are sophisticated territorial systems at the mature stage of city development that concentrated areas production and economic activity. Therefore, study vulnerability from perspective production-living-ecological space is crucial for sustainable Yellow River Basin global urban agglomerations. The relationship between productivity, living conditions, ecological spatial quality fully considered in this research. By constructing a evaluation index system based on perspectives production, ecology, space, adopting entropy value method, comprehensive model, obstacle factor diagnostic comprehensively assesses along 2001 to 2020. results reveal differentiation characteristics agglomeration significant. A clear three-level gradient distribution high, medium, low degrees seen overall vulnerability; these correspond lower, middle, upper reaches Basin, respectively. percentage cities with higher moderate levels did not vary 2020, while high did. four dimensions development, leisure tourism, resource availability, pressure primary determinants agglomeration’s River. And factors various showed significant evolutionary trend; degree values have declined, importance tourism functions has gradually increased. Based above conclusions, we propose several suggestions enhance agglomeration. Including formulating strategy, paying attention environmental protection, developing domestic foreign trade, properly planning managing industry.

Language: Английский

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